/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-01 16:38:09,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-01 16:38:09,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-01 16:38:09,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-01 16:38:09,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-01 16:38:09,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-01 16:38:09,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-01 16:38:09,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-01 16:38:09,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-01 16:38:09,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-01 16:38:09,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-01 16:38:09,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-01 16:38:09,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-01 16:38:09,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-01 16:38:09,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-01 16:38:09,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-01 16:38:09,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-01 16:38:09,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-01 16:38:09,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-01 16:38:09,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-01 16:38:09,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-01 16:38:09,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-01 16:38:09,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-01 16:38:09,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-01 16:38:09,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-01 16:38:09,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-01 16:38:09,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-01 16:38:09,275 INFO L138 SettingsManager]: * Use SBE=true [2021-06-01 16:38:09,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-01 16:38:09,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-01 16:38:09,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-01 16:38:09,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-01 16:38:09,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-01 16:38:09,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 16:38:09,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-01 16:38:09,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-01 16:38:09,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-01 16:38:09,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-01 16:38:09,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-01 16:38:09,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-01 16:38:09,541 INFO L275 PluginConnector]: CDTParser initialized [2021-06-01 16:38:09,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-06-01 16:38:09,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d62e4863/362a0320572545de8a9aa2eb260ea91a/FLAGc74e4b18b [2021-06-01 16:38:10,039 INFO L306 CDTParser]: Found 1 translation units. [2021-06-01 16:38:10,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-06-01 16:38:10,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d62e4863/362a0320572545de8a9aa2eb260ea91a/FLAGc74e4b18b [2021-06-01 16:38:10,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d62e4863/362a0320572545de8a9aa2eb260ea91a [2021-06-01 16:38:10,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-01 16:38:10,565 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-01 16:38:10,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-01 16:38:10,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-01 16:38:10,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-01 16:38:10,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:38:10" (1/1) ... [2021-06-01 16:38:10,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f099f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:10, skipping insertion in model container [2021-06-01 16:38:10,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:38:10" (1/1) ... [2021-06-01 16:38:10,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-01 16:38:10,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-01 16:38:11,155 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-06-01 16:38:11,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 16:38:11,179 INFO L203 MainTranslator]: Completed pre-run [2021-06-01 16:38:11,218 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-06-01 16:38:11,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 16:38:11,395 INFO L208 MainTranslator]: Completed translation [2021-06-01 16:38:11,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11 WrapperNode [2021-06-01 16:38:11,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-01 16:38:11,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-01 16:38:11,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-01 16:38:11,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-01 16:38:11,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-01 16:38:11,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-01 16:38:11,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-01 16:38:11,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-01 16:38:11,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... [2021-06-01 16:38:11,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-01 16:38:11,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-01 16:38:11,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-01 16:38:11,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-01 16:38:11,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 16:38:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-01 16:38:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-01 16:38:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-01 16:38:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-01 16:38:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-01 16:38:11,539 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-01 16:38:11,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-01 16:38:11,940 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-01 16:38:11,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:38:11 BoogieIcfgContainer [2021-06-01 16:38:11,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-01 16:38:11,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-01 16:38:11,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-01 16:38:11,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-01 16:38:11,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 04:38:10" (1/3) ... [2021-06-01 16:38:11,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d763561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:38:11, skipping insertion in model container [2021-06-01 16:38:11,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:11" (2/3) ... [2021-06-01 16:38:11,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d763561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:38:11, skipping insertion in model container [2021-06-01 16:38:11,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:38:11" (3/3) ... [2021-06-01 16:38:11,946 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-06-01 16:38:11,949 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-01 16:38:11,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-01 16:38:11,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-01 16:38:11,950 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-01 16:38:11,970 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,971 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,972 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,973 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,974 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,975 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,976 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,977 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,978 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,979 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,980 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,981 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,982 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,982 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,983 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,983 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,986 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,986 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,986 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,987 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,987 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:11,994 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-01 16:38:12,008 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-01 16:38:12,019 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 16:38:12,019 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 16:38:12,019 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 16:38:12,019 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 16:38:12,019 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 16:38:12,019 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 16:38:12,019 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 16:38:12,019 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-01 16:38:12,027 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-06-01 16:38:12,241 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:12,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-01 16:38:12,262 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:12,263 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:12,263 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1624038893, now seen corresponding path program 1 times [2021-06-01 16:38:12,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:12,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937503683] [2021-06-01 16:38:12,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:12,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:12,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937503683] [2021-06-01 16:38:12,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937503683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:12,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:12,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:12,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463737873] [2021-06-01 16:38:12,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:12,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:12,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:12,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:12,613 INFO L87 Difference]: Start difference. First operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:12,787 INFO L93 Difference]: Finished difference Result 7787 states and 21633 transitions. [2021-06-01 16:38:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-01 16:38:12,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-01 16:38:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:12,889 INFO L225 Difference]: With dead ends: 7787 [2021-06-01 16:38:12,889 INFO L226 Difference]: Without dead ends: 6398 [2021-06-01 16:38:12,897 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 63.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:38:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-06-01 16:38:13,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6397. [2021-06-01 16:38:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6397 states, 6390 states have (on average 2.769170579029734) internal successors, (17695), 6396 states have internal predecessors, (17695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 17695 transitions. [2021-06-01 16:38:13,088 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 17695 transitions. Word has length 36 [2021-06-01 16:38:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:13,088 INFO L482 AbstractCegarLoop]: Abstraction has 6397 states and 17695 transitions. [2021-06-01 16:38:13,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 17695 transitions. [2021-06-01 16:38:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-01 16:38:13,089 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:13,089 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:13,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-01 16:38:13,090 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:13,090 INFO L82 PathProgramCache]: Analyzing trace with hash -652027726, now seen corresponding path program 1 times [2021-06-01 16:38:13,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:13,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693251011] [2021-06-01 16:38:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:13,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:13,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693251011] [2021-06-01 16:38:13,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693251011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:13,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:13,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:13,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983424932] [2021-06-01 16:38:13,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:13,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:13,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:13,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:13,188 INFO L87 Difference]: Start difference. First operand 6397 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:13,332 INFO L93 Difference]: Finished difference Result 6399 states and 17697 transitions. [2021-06-01 16:38:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:38:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-06-01 16:38:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:13,352 INFO L225 Difference]: With dead ends: 6399 [2021-06-01 16:38:13,352 INFO L226 Difference]: Without dead ends: 6399 [2021-06-01 16:38:13,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 58.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-01 16:38:13,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2021-06-01 16:38:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6395. [2021-06-01 16:38:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6389 states have (on average 2.7692909688527156) internal successors, (17693), 6394 states have internal predecessors, (17693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 17693 transitions. [2021-06-01 16:38:13,543 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 17693 transitions. Word has length 42 [2021-06-01 16:38:13,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:13,544 INFO L482 AbstractCegarLoop]: Abstraction has 6395 states and 17693 transitions. [2021-06-01 16:38:13,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 17693 transitions. [2021-06-01 16:38:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-01 16:38:13,549 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:13,549 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:13,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-01 16:38:13,553 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:13,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:13,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1629089851, now seen corresponding path program 1 times [2021-06-01 16:38:13,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:13,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110275373] [2021-06-01 16:38:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:13,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:13,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110275373] [2021-06-01 16:38:13,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110275373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:13,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:13,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:13,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451858032] [2021-06-01 16:38:13,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:13,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:13,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:13,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:13,668 INFO L87 Difference]: Start difference. First operand 6395 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:13,973 INFO L93 Difference]: Finished difference Result 9382 states and 25923 transitions. [2021-06-01 16:38:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-01 16:38:13,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-01 16:38:13,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:14,007 INFO L225 Difference]: With dead ends: 9382 [2021-06-01 16:38:14,008 INFO L226 Difference]: Without dead ends: 9382 [2021-06-01 16:38:14,008 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 127.1ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2021-06-01 16:38:14,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 7177. [2021-06-01 16:38:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7172 states have (on average 2.7711935303959843) internal successors, (19875), 7176 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 19875 transitions. [2021-06-01 16:38:14,186 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 19875 transitions. Word has length 60 [2021-06-01 16:38:14,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:14,188 INFO L482 AbstractCegarLoop]: Abstraction has 7177 states and 19875 transitions. [2021-06-01 16:38:14,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 19875 transitions. [2021-06-01 16:38:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 16:38:14,193 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:14,193 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:14,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-01 16:38:14,193 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:14,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:14,193 INFO L82 PathProgramCache]: Analyzing trace with hash 157318948, now seen corresponding path program 1 times [2021-06-01 16:38:14,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:14,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641039829] [2021-06-01 16:38:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:14,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:14,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641039829] [2021-06-01 16:38:14,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641039829] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:14,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:14,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:14,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815485009] [2021-06-01 16:38:14,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:14,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:14,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:14,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:14,297 INFO L87 Difference]: Start difference. First operand 7177 states and 19875 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:14,499 INFO L93 Difference]: Finished difference Result 10164 states and 27958 transitions. [2021-06-01 16:38:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:38:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 16:38:14,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:14,514 INFO L225 Difference]: With dead ends: 10164 [2021-06-01 16:38:14,514 INFO L226 Difference]: Without dead ends: 8547 [2021-06-01 16:38:14,515 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-01 16:38:14,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-06-01 16:38:14,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8253. [2021-06-01 16:38:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8249 states have (on average 2.7752454843011276) internal successors, (22893), 8252 states have internal predecessors, (22893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 22893 transitions. [2021-06-01 16:38:14,729 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 22893 transitions. Word has length 66 [2021-06-01 16:38:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:14,730 INFO L482 AbstractCegarLoop]: Abstraction has 8253 states and 22893 transitions. [2021-06-01 16:38:14,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 22893 transitions. [2021-06-01 16:38:14,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 16:38:14,736 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:14,736 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:14,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-01 16:38:14,737 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:14,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:14,737 INFO L82 PathProgramCache]: Analyzing trace with hash 545870789, now seen corresponding path program 1 times [2021-06-01 16:38:14,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:14,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896158411] [2021-06-01 16:38:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:14,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:14,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896158411] [2021-06-01 16:38:14,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896158411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:14,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:14,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-01 16:38:14,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844058788] [2021-06-01 16:38:14,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-01 16:38:14,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-01 16:38:14,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-01 16:38:14,822 INFO L87 Difference]: Start difference. First operand 8253 states and 22893 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:14,854 INFO L93 Difference]: Finished difference Result 3039 states and 8148 transitions. [2021-06-01 16:38:14,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-01 16:38:14,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 16:38:14,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:14,859 INFO L225 Difference]: With dead ends: 3039 [2021-06-01 16:38:14,860 INFO L226 Difference]: Without dead ends: 3039 [2021-06-01 16:38:14,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-01 16:38:14,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-06-01 16:38:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2021-06-01 16:38:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3037 states have (on average 2.6829107672044783) internal successors, (8148), 3038 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8148 transitions. [2021-06-01 16:38:14,919 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8148 transitions. Word has length 80 [2021-06-01 16:38:14,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:14,919 INFO L482 AbstractCegarLoop]: Abstraction has 3039 states and 8148 transitions. [2021-06-01 16:38:14,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8148 transitions. [2021-06-01 16:38:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:14,926 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:14,926 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:14,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-01 16:38:14,926 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:14,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:14,927 INFO L82 PathProgramCache]: Analyzing trace with hash 206638629, now seen corresponding path program 1 times [2021-06-01 16:38:14,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:14,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222776727] [2021-06-01 16:38:14,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:15,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:15,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222776727] [2021-06-01 16:38:15,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222776727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:15,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:15,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:15,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417576060] [2021-06-01 16:38:15,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:15,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:15,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:15,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:15,398 INFO L87 Difference]: Start difference. First operand 3039 states and 8148 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:16,033 INFO L93 Difference]: Finished difference Result 4138 states and 10679 transitions. [2021-06-01 16:38:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:16,038 INFO L225 Difference]: With dead ends: 4138 [2021-06-01 16:38:16,038 INFO L226 Difference]: Without dead ends: 4138 [2021-06-01 16:38:16,039 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 473.7ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:16,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2021-06-01 16:38:16,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 3698. [2021-06-01 16:38:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3696 states have (on average 2.643668831168831) internal successors, (9771), 3697 states have internal predecessors, (9771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:16,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 9771 transitions. [2021-06-01 16:38:16,090 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 9771 transitions. Word has length 113 [2021-06-01 16:38:16,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:16,090 INFO L482 AbstractCegarLoop]: Abstraction has 3698 states and 9771 transitions. [2021-06-01 16:38:16,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 9771 transitions. [2021-06-01 16:38:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:16,095 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:16,096 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:16,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-01 16:38:16,096 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:16,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:16,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1135674037, now seen corresponding path program 2 times [2021-06-01 16:38:16,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:16,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345548462] [2021-06-01 16:38:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:16,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:16,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345548462] [2021-06-01 16:38:16,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345548462] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:16,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:16,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:16,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158275819] [2021-06-01 16:38:16,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:16,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:16,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:16,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:16,487 INFO L87 Difference]: Start difference. First operand 3698 states and 9771 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:17,838 INFO L93 Difference]: Finished difference Result 6254 states and 16298 transitions. [2021-06-01 16:38:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:17,838 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:17,848 INFO L225 Difference]: With dead ends: 6254 [2021-06-01 16:38:17,848 INFO L226 Difference]: Without dead ends: 6254 [2021-06-01 16:38:17,849 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1048.3ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:38:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2021-06-01 16:38:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 4483. [2021-06-01 16:38:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.673733541620174) internal successors, (11981), 4482 states have internal predecessors, (11981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 11981 transitions. [2021-06-01 16:38:17,942 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 11981 transitions. Word has length 113 [2021-06-01 16:38:17,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:17,943 INFO L482 AbstractCegarLoop]: Abstraction has 4483 states and 11981 transitions. [2021-06-01 16:38:17,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 11981 transitions. [2021-06-01 16:38:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:17,949 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:17,949 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:17,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-01 16:38:17,950 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:17,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:17,950 INFO L82 PathProgramCache]: Analyzing trace with hash -62312397, now seen corresponding path program 3 times [2021-06-01 16:38:17,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:17,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539977440] [2021-06-01 16:38:17,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:18,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:18,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539977440] [2021-06-01 16:38:18,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539977440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:18,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:18,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:18,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023379144] [2021-06-01 16:38:18,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:18,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:18,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:18,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:18,236 INFO L87 Difference]: Start difference. First operand 4483 states and 11981 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:18,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:18,868 INFO L93 Difference]: Finished difference Result 5390 states and 13897 transitions. [2021-06-01 16:38:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:18,869 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:18,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:18,878 INFO L225 Difference]: With dead ends: 5390 [2021-06-01 16:38:18,878 INFO L226 Difference]: Without dead ends: 5390 [2021-06-01 16:38:18,878 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 501.1ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2021-06-01 16:38:18,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 4516. [2021-06-01 16:38:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4514 states have (on average 2.671466548515729) internal successors, (12059), 4515 states have internal predecessors, (12059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 12059 transitions. [2021-06-01 16:38:18,960 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 12059 transitions. Word has length 113 [2021-06-01 16:38:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:18,960 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 12059 transitions. [2021-06-01 16:38:18,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 12059 transitions. [2021-06-01 16:38:18,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:18,967 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:18,967 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:18,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-01 16:38:18,967 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:18,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:18,968 INFO L82 PathProgramCache]: Analyzing trace with hash -660140631, now seen corresponding path program 4 times [2021-06-01 16:38:18,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:18,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291803829] [2021-06-01 16:38:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:19,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:19,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291803829] [2021-06-01 16:38:19,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291803829] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:19,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:19,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:19,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123195724] [2021-06-01 16:38:19,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:19,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:19,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:19,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:19,385 INFO L87 Difference]: Start difference. First operand 4516 states and 12059 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:20,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:20,563 INFO L93 Difference]: Finished difference Result 6181 states and 15940 transitions. [2021-06-01 16:38:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:20,564 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:20,570 INFO L225 Difference]: With dead ends: 6181 [2021-06-01 16:38:20,570 INFO L226 Difference]: Without dead ends: 6181 [2021-06-01 16:38:20,570 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1028.0ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2021-06-01 16:38:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 4526. [2021-06-01 16:38:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4524 states have (on average 2.6710875331564985) internal successors, (12084), 4525 states have internal predecessors, (12084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 12084 transitions. [2021-06-01 16:38:20,633 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 12084 transitions. Word has length 113 [2021-06-01 16:38:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:20,633 INFO L482 AbstractCegarLoop]: Abstraction has 4526 states and 12084 transitions. [2021-06-01 16:38:20,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 12084 transitions. [2021-06-01 16:38:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:20,639 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:20,639 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:20,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-01 16:38:20,639 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:20,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:20,640 INFO L82 PathProgramCache]: Analyzing trace with hash 228734501, now seen corresponding path program 5 times [2021-06-01 16:38:20,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:20,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821623042] [2021-06-01 16:38:20,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:20,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:20,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821623042] [2021-06-01 16:38:20,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821623042] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:20,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:20,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:20,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863990126] [2021-06-01 16:38:20,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:20,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:20,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:20,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:20,905 INFO L87 Difference]: Start difference. First operand 4526 states and 12084 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:21,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:21,473 INFO L93 Difference]: Finished difference Result 4980 states and 13019 transitions. [2021-06-01 16:38:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:38:21,473 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:21,479 INFO L225 Difference]: With dead ends: 4980 [2021-06-01 16:38:21,479 INFO L226 Difference]: Without dead ends: 4980 [2021-06-01 16:38:21,480 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 420.0ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4980 states. [2021-06-01 16:38:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4980 to 4394. [2021-06-01 16:38:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4392 states have (on average 2.680327868852459) internal successors, (11772), 4393 states have internal predecessors, (11772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 11772 transitions. [2021-06-01 16:38:21,538 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 11772 transitions. Word has length 113 [2021-06-01 16:38:21,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:21,539 INFO L482 AbstractCegarLoop]: Abstraction has 4394 states and 11772 transitions. [2021-06-01 16:38:21,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:21,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 11772 transitions. [2021-06-01 16:38:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:21,544 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:21,544 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:21,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-01 16:38:21,545 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1687601291, now seen corresponding path program 6 times [2021-06-01 16:38:21,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:21,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135336767] [2021-06-01 16:38:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:21,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:21,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135336767] [2021-06-01 16:38:21,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135336767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:21,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:21,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:21,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088368889] [2021-06-01 16:38:21,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:21,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:21,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:21,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:21,932 INFO L87 Difference]: Start difference. First operand 4394 states and 11772 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:22,873 INFO L93 Difference]: Finished difference Result 5437 states and 13948 transitions. [2021-06-01 16:38:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:22,878 INFO L225 Difference]: With dead ends: 5437 [2021-06-01 16:38:22,878 INFO L226 Difference]: Without dead ends: 5437 [2021-06-01 16:38:22,879 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 800.9ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:22,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2021-06-01 16:38:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 4424. [2021-06-01 16:38:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4422 states have (on average 2.6791044776119404) internal successors, (11847), 4423 states have internal predecessors, (11847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 11847 transitions. [2021-06-01 16:38:22,938 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 11847 transitions. Word has length 113 [2021-06-01 16:38:22,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:22,938 INFO L482 AbstractCegarLoop]: Abstraction has 4424 states and 11847 transitions. [2021-06-01 16:38:22,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 11847 transitions. [2021-06-01 16:38:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:22,944 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:22,944 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:22,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-01 16:38:22,944 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:22,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:22,945 INFO L82 PathProgramCache]: Analyzing trace with hash -665903213, now seen corresponding path program 7 times [2021-06-01 16:38:22,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:22,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989208960] [2021-06-01 16:38:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:23,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:23,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989208960] [2021-06-01 16:38:23,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989208960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:23,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:23,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:23,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668167383] [2021-06-01 16:38:23,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:23,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:23,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:23,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:23,306 INFO L87 Difference]: Start difference. First operand 4424 states and 11847 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:24,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:24,532 INFO L93 Difference]: Finished difference Result 10454 states and 27256 transitions. [2021-06-01 16:38:24,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:24,533 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:24,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:24,538 INFO L225 Difference]: With dead ends: 10454 [2021-06-01 16:38:24,538 INFO L226 Difference]: Without dead ends: 10454 [2021-06-01 16:38:24,539 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1010.0ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:38:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-06-01 16:38:24,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 4496. [2021-06-01 16:38:24,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 2.684245660881175) internal successors, (12063), 4495 states have internal predecessors, (12063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 12063 transitions. [2021-06-01 16:38:24,612 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 12063 transitions. Word has length 113 [2021-06-01 16:38:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:24,613 INFO L482 AbstractCegarLoop]: Abstraction has 4496 states and 12063 transitions. [2021-06-01 16:38:24,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 12063 transitions. [2021-06-01 16:38:24,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:24,618 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:24,618 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:24,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-01 16:38:24,618 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:24,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1833249415, now seen corresponding path program 8 times [2021-06-01 16:38:24,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:24,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493499515] [2021-06-01 16:38:24,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:24,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:24,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493499515] [2021-06-01 16:38:24,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493499515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:24,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:24,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:24,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845665992] [2021-06-01 16:38:24,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:24,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:25,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:25,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:25,001 INFO L87 Difference]: Start difference. First operand 4496 states and 12063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:26,229 INFO L93 Difference]: Finished difference Result 9577 states and 24842 transitions. [2021-06-01 16:38:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:26,237 INFO L225 Difference]: With dead ends: 9577 [2021-06-01 16:38:26,237 INFO L226 Difference]: Without dead ends: 9577 [2021-06-01 16:38:26,237 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1003.2ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:26,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-06-01 16:38:26,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 4436. [2021-06-01 16:38:26,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4434 states have (on average 2.6799729364005414) internal successors, (11883), 4435 states have internal predecessors, (11883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:26,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 11883 transitions. [2021-06-01 16:38:26,316 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 11883 transitions. Word has length 113 [2021-06-01 16:38:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:26,316 INFO L482 AbstractCegarLoop]: Abstraction has 4436 states and 11883 transitions. [2021-06-01 16:38:26,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 11883 transitions. [2021-06-01 16:38:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:26,324 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:26,324 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:26,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-01 16:38:26,325 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:26,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:26,325 INFO L82 PathProgramCache]: Analyzing trace with hash 530718679, now seen corresponding path program 9 times [2021-06-01 16:38:26,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:26,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118061399] [2021-06-01 16:38:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:26,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:26,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118061399] [2021-06-01 16:38:26,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118061399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:26,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:26,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:26,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194349363] [2021-06-01 16:38:26,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:26,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:26,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:26,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:26,706 INFO L87 Difference]: Start difference. First operand 4436 states and 11883 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:28,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:28,581 INFO L93 Difference]: Finished difference Result 9044 states and 23337 transitions. [2021-06-01 16:38:28,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 16:38:28,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:28,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:28,589 INFO L225 Difference]: With dead ends: 9044 [2021-06-01 16:38:28,589 INFO L226 Difference]: Without dead ends: 9044 [2021-06-01 16:38:28,590 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1510.2ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 16:38:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2021-06-01 16:38:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4575. [2021-06-01 16:38:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 4573 states have (on average 2.684014869888476) internal successors, (12274), 4574 states have internal predecessors, (12274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 12274 transitions. [2021-06-01 16:38:28,662 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 12274 transitions. Word has length 113 [2021-06-01 16:38:28,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:28,662 INFO L482 AbstractCegarLoop]: Abstraction has 4575 states and 12274 transitions. [2021-06-01 16:38:28,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 12274 transitions. [2021-06-01 16:38:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:28,668 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:28,668 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:28,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-01 16:38:28,668 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:28,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:28,668 INFO L82 PathProgramCache]: Analyzing trace with hash -955480473, now seen corresponding path program 10 times [2021-06-01 16:38:28,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:28,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367707756] [2021-06-01 16:38:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:28,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:28,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367707756] [2021-06-01 16:38:28,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367707756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:28,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:28,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:28,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75958230] [2021-06-01 16:38:28,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:28,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:28,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:28,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:28,972 INFO L87 Difference]: Start difference. First operand 4575 states and 12274 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:30,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:30,282 INFO L93 Difference]: Finished difference Result 7287 states and 18606 transitions. [2021-06-01 16:38:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:30,282 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:30,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:30,289 INFO L225 Difference]: With dead ends: 7287 [2021-06-01 16:38:30,289 INFO L226 Difference]: Without dead ends: 7287 [2021-06-01 16:38:30,289 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1041.6ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:30,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2021-06-01 16:38:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 4581. [2021-06-01 16:38:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4579 states have (on average 2.6837737497270147) internal successors, (12289), 4580 states have internal predecessors, (12289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 12289 transitions. [2021-06-01 16:38:30,346 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 12289 transitions. Word has length 113 [2021-06-01 16:38:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:30,346 INFO L482 AbstractCegarLoop]: Abstraction has 4581 states and 12289 transitions. [2021-06-01 16:38:30,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 12289 transitions. [2021-06-01 16:38:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:30,351 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:30,351 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:30,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-01 16:38:30,351 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:30,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:30,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1764361193, now seen corresponding path program 11 times [2021-06-01 16:38:30,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:30,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970279782] [2021-06-01 16:38:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:30,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:30,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970279782] [2021-06-01 16:38:30,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970279782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:30,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:30,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:30,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953184662] [2021-06-01 16:38:30,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:30,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:30,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:30,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:30,696 INFO L87 Difference]: Start difference. First operand 4581 states and 12289 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:31,815 INFO L93 Difference]: Finished difference Result 7156 states and 18133 transitions. [2021-06-01 16:38:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:31,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:31,822 INFO L225 Difference]: With dead ends: 7156 [2021-06-01 16:38:31,822 INFO L226 Difference]: Without dead ends: 7156 [2021-06-01 16:38:31,822 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 962.7ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2021-06-01 16:38:31,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 4583. [2021-06-01 16:38:31,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-06-01 16:38:31,895 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-06-01 16:38:31,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:31,895 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-06-01 16:38:31,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-06-01 16:38:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:31,900 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:31,900 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:31,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-01 16:38:31,901 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:31,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1998553517, now seen corresponding path program 12 times [2021-06-01 16:38:31,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:31,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131681457] [2021-06-01 16:38:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:32,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:32,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131681457] [2021-06-01 16:38:32,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131681457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:32,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:32,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:32,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246236383] [2021-06-01 16:38:32,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:32,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:32,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:32,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:32,242 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:33,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:33,438 INFO L93 Difference]: Finished difference Result 6999 states and 17778 transitions. [2021-06-01 16:38:33,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:33,438 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:33,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:33,444 INFO L225 Difference]: With dead ends: 6999 [2021-06-01 16:38:33,444 INFO L226 Difference]: Without dead ends: 6999 [2021-06-01 16:38:33,445 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1014.2ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2021-06-01 16:38:33,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 4583. [2021-06-01 16:38:33,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-06-01 16:38:33,507 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-06-01 16:38:33,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:33,507 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-06-01 16:38:33,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:33,507 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-06-01 16:38:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:33,512 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:33,512 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:33,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-01 16:38:33,512 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:33,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:33,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1541337051, now seen corresponding path program 13 times [2021-06-01 16:38:33,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:33,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987571468] [2021-06-01 16:38:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:33,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:33,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:33,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987571468] [2021-06-01 16:38:33,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987571468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:33,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:33,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:33,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066689759] [2021-06-01 16:38:33,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:33,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:33,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:33,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:33,866 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:34,850 INFO L93 Difference]: Finished difference Result 6304 states and 15945 transitions. [2021-06-01 16:38:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:34,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:34,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:34,856 INFO L225 Difference]: With dead ends: 6304 [2021-06-01 16:38:34,856 INFO L226 Difference]: Without dead ends: 6304 [2021-06-01 16:38:34,856 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 742.7ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2021-06-01 16:38:34,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 4589. [2021-06-01 16:38:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-01 16:38:34,909 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-01 16:38:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:34,909 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-01 16:38:34,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-01 16:38:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:34,914 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:34,914 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:34,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-01 16:38:34,914 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:34,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1963761767, now seen corresponding path program 14 times [2021-06-01 16:38:34,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:34,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479547695] [2021-06-01 16:38:34,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:35,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:35,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479547695] [2021-06-01 16:38:35,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479547695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:35,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:35,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:35,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059416122] [2021-06-01 16:38:35,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:35,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:35,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:35,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:35,257 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:36,208 INFO L93 Difference]: Finished difference Result 6426 states and 16176 transitions. [2021-06-01 16:38:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:36,209 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:36,214 INFO L225 Difference]: With dead ends: 6426 [2021-06-01 16:38:36,214 INFO L226 Difference]: Without dead ends: 6426 [2021-06-01 16:38:36,214 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 743.6ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2021-06-01 16:38:36,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 4591. [2021-06-01 16:38:36,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4589 states have (on average 2.683373283939856) internal successors, (12314), 4590 states have internal predecessors, (12314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 12314 transitions. [2021-06-01 16:38:36,269 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 12314 transitions. Word has length 113 [2021-06-01 16:38:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:36,270 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 12314 transitions. [2021-06-01 16:38:36,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 12314 transitions. [2021-06-01 16:38:36,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:36,274 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:36,274 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:36,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-01 16:38:36,274 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:36,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:36,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1729569443, now seen corresponding path program 15 times [2021-06-01 16:38:36,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:36,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546285867] [2021-06-01 16:38:36,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:36,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:36,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546285867] [2021-06-01 16:38:36,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546285867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:36,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:36,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:36,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636715149] [2021-06-01 16:38:36,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:36,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:36,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:36,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:36,602 INFO L87 Difference]: Start difference. First operand 4591 states and 12314 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:37,691 INFO L93 Difference]: Finished difference Result 6096 states and 15461 transitions. [2021-06-01 16:38:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:37,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:37,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:37,696 INFO L225 Difference]: With dead ends: 6096 [2021-06-01 16:38:37,696 INFO L226 Difference]: Without dead ends: 6096 [2021-06-01 16:38:37,696 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 801.8ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2021-06-01 16:38:37,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 4589. [2021-06-01 16:38:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-01 16:38:37,752 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-01 16:38:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:37,752 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-01 16:38:37,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-01 16:38:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:37,755 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:37,755 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:37,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-01 16:38:37,756 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:37,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1126339983, now seen corresponding path program 16 times [2021-06-01 16:38:37,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:37,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832461317] [2021-06-01 16:38:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:38,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:38,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832461317] [2021-06-01 16:38:38,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832461317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:38,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:38,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:38,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481200728] [2021-06-01 16:38:38,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:38,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:38,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:38,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:38,085 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:39,316 INFO L93 Difference]: Finished difference Result 8284 states and 21529 transitions. [2021-06-01 16:38:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:39,323 INFO L225 Difference]: With dead ends: 8284 [2021-06-01 16:38:39,323 INFO L226 Difference]: Without dead ends: 8284 [2021-06-01 16:38:39,323 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1010.2ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:38:39,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2021-06-01 16:38:39,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 4589. [2021-06-01 16:38:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-01 16:38:39,400 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-01 16:38:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:39,401 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-01 16:38:39,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-01 16:38:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:39,404 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:39,404 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:39,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-01 16:38:39,405 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash -669474685, now seen corresponding path program 17 times [2021-06-01 16:38:39,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:39,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412062371] [2021-06-01 16:38:39,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:39,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:39,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412062371] [2021-06-01 16:38:39,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412062371] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:39,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:39,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:39,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63532485] [2021-06-01 16:38:39,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:39,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:39,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:39,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:39,736 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:40,923 INFO L93 Difference]: Finished difference Result 7407 states and 19115 transitions. [2021-06-01 16:38:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:40,930 INFO L225 Difference]: With dead ends: 7407 [2021-06-01 16:38:40,930 INFO L226 Difference]: Without dead ends: 7407 [2021-06-01 16:38:40,930 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 994.5ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:40,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2021-06-01 16:38:40,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 4529. [2021-06-01 16:38:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-06-01 16:38:40,989 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-06-01 16:38:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:40,989 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-06-01 16:38:40,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-06-01 16:38:40,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:40,992 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:40,993 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:40,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-01 16:38:40,993 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:40,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1972005421, now seen corresponding path program 18 times [2021-06-01 16:38:40,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:40,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728189118] [2021-06-01 16:38:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:41,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:41,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728189118] [2021-06-01 16:38:41,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728189118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:41,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:41,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:41,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557158483] [2021-06-01 16:38:41,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:41,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:41,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:41,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:41,305 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:43,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:43,076 INFO L93 Difference]: Finished difference Result 10995 states and 28419 transitions. [2021-06-01 16:38:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 16:38:43,076 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:43,085 INFO L225 Difference]: With dead ends: 10995 [2021-06-01 16:38:43,085 INFO L226 Difference]: Without dead ends: 10995 [2021-06-01 16:38:43,085 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1414.4ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 16:38:43,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2021-06-01 16:38:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 4565. [2021-06-01 16:38:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4565 states, 4563 states have (on average 2.6817882971729126) internal successors, (12237), 4564 states have internal predecessors, (12237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:43,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 12237 transitions. [2021-06-01 16:38:43,160 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 12237 transitions. Word has length 113 [2021-06-01 16:38:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:43,160 INFO L482 AbstractCegarLoop]: Abstraction has 4565 states and 12237 transitions. [2021-06-01 16:38:43,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 12237 transitions. [2021-06-01 16:38:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:43,163 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:43,163 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:43,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-01 16:38:43,163 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:43,164 INFO L82 PathProgramCache]: Analyzing trace with hash 836762723, now seen corresponding path program 19 times [2021-06-01 16:38:43,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:43,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629948038] [2021-06-01 16:38:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:43,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:43,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:43,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629948038] [2021-06-01 16:38:43,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629948038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:43,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:43,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:43,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336203822] [2021-06-01 16:38:43,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:43,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:43,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:43,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:43,496 INFO L87 Difference]: Start difference. First operand 4565 states and 12237 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:44,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:44,770 INFO L93 Difference]: Finished difference Result 9238 states and 23688 transitions. [2021-06-01 16:38:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:44,775 INFO L225 Difference]: With dead ends: 9238 [2021-06-01 16:38:44,775 INFO L226 Difference]: Without dead ends: 9238 [2021-06-01 16:38:44,776 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1091.9ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9238 states. [2021-06-01 16:38:44,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9238 to 4529. [2021-06-01 16:38:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:44,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-06-01 16:38:44,832 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-06-01 16:38:44,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:44,833 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-06-01 16:38:44,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-06-01 16:38:44,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:44,836 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:44,836 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:44,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-01 16:38:44,836 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:44,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:44,837 INFO L82 PathProgramCache]: Analyzing trace with hash 27882003, now seen corresponding path program 20 times [2021-06-01 16:38:44,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:44,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825439277] [2021-06-01 16:38:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:45,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:45,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825439277] [2021-06-01 16:38:45,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825439277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:45,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:45,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:45,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112358470] [2021-06-01 16:38:45,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:45,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:45,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:45,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:45,152 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:46,236 INFO L93 Difference]: Finished difference Result 8169 states and 20857 transitions. [2021-06-01 16:38:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:46,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:46,243 INFO L225 Difference]: With dead ends: 8169 [2021-06-01 16:38:46,243 INFO L226 Difference]: Without dead ends: 8169 [2021-06-01 16:38:46,244 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 912.9ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2021-06-01 16:38:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 4531. [2021-06-01 16:38:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4531 states, 4529 states have (on average 2.679178626628395) internal successors, (12134), 4530 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 12134 transitions. [2021-06-01 16:38:46,307 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 12134 transitions. Word has length 113 [2021-06-01 16:38:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:46,307 INFO L482 AbstractCegarLoop]: Abstraction has 4531 states and 12134 transitions. [2021-06-01 16:38:46,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 12134 transitions. [2021-06-01 16:38:46,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:46,311 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:46,311 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:46,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-01 16:38:46,311 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:46,311 INFO L82 PathProgramCache]: Analyzing trace with hash -206310321, now seen corresponding path program 21 times [2021-06-01 16:38:46,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:46,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495707079] [2021-06-01 16:38:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:46,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:46,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495707079] [2021-06-01 16:38:46,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495707079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:46,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:46,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:46,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575965979] [2021-06-01 16:38:46,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:46,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:46,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:46,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:46,620 INFO L87 Difference]: Start difference. First operand 4531 states and 12134 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:47,852 INFO L93 Difference]: Finished difference Result 8044 states and 20567 transitions. [2021-06-01 16:38:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:47,853 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:47,860 INFO L225 Difference]: With dead ends: 8044 [2021-06-01 16:38:47,860 INFO L226 Difference]: Without dead ends: 8044 [2021-06-01 16:38:47,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 991.4ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:47,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8044 states. [2021-06-01 16:38:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8044 to 4517. [2021-06-01 16:38:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4515 states have (on average 2.678405315614618) internal successors, (12093), 4516 states have internal predecessors, (12093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 12093 transitions. [2021-06-01 16:38:47,923 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 12093 transitions. Word has length 113 [2021-06-01 16:38:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:47,923 INFO L482 AbstractCegarLoop]: Abstraction has 4517 states and 12093 transitions. [2021-06-01 16:38:47,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:47,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 12093 transitions. [2021-06-01 16:38:47,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:47,926 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:47,926 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:47,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-01 16:38:47,926 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:47,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:47,927 INFO L82 PathProgramCache]: Analyzing trace with hash 821363819, now seen corresponding path program 22 times [2021-06-01 16:38:47,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:47,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917774446] [2021-06-01 16:38:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:48,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:48,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917774446] [2021-06-01 16:38:48,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917774446] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:48,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:48,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:48,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866294000] [2021-06-01 16:38:48,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:48,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:48,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:48,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:48,240 INFO L87 Difference]: Start difference. First operand 4517 states and 12093 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:50,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:50,141 INFO L93 Difference]: Finished difference Result 6936 states and 17741 transitions. [2021-06-01 16:38:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:38:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:50,147 INFO L225 Difference]: With dead ends: 6936 [2021-06-01 16:38:50,147 INFO L226 Difference]: Without dead ends: 6936 [2021-06-01 16:38:50,147 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1517.8ms TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2021-06-01 16:38:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2021-06-01 16:38:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 3470. [2021-06-01 16:38:50,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 3468 states have (on average 2.631487889273356) internal successors, (9126), 3469 states have internal predecessors, (9126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 9126 transitions. [2021-06-01 16:38:50,192 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 9126 transitions. Word has length 113 [2021-06-01 16:38:50,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:50,192 INFO L482 AbstractCegarLoop]: Abstraction has 3470 states and 9126 transitions. [2021-06-01 16:38:50,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 9126 transitions. [2021-06-01 16:38:50,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:50,195 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:50,195 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:50,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-01 16:38:50,195 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:50,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:50,196 INFO L82 PathProgramCache]: Analyzing trace with hash -664835333, now seen corresponding path program 23 times [2021-06-01 16:38:50,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:50,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920779612] [2021-06-01 16:38:50,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:50,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:50,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920779612] [2021-06-01 16:38:50,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920779612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:50,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:50,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:50,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112081514] [2021-06-01 16:38:50,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:50,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:50,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:50,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:50,491 INFO L87 Difference]: Start difference. First operand 3470 states and 9126 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:52,249 INFO L93 Difference]: Finished difference Result 7509 states and 18951 transitions. [2021-06-01 16:38:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:38:52,250 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:52,255 INFO L225 Difference]: With dead ends: 7509 [2021-06-01 16:38:52,255 INFO L226 Difference]: Without dead ends: 7509 [2021-06-01 16:38:52,256 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1423.0ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-06-01 16:38:52,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2021-06-01 16:38:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 3434. [2021-06-01 16:38:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.6276223776223775) internal successors, (9018), 3433 states have internal predecessors, (9018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9018 transitions. [2021-06-01 16:38:52,304 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9018 transitions. Word has length 113 [2021-06-01 16:38:52,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:52,304 INFO L482 AbstractCegarLoop]: Abstraction has 3434 states and 9018 transitions. [2021-06-01 16:38:52,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:52,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9018 transitions. [2021-06-01 16:38:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:52,307 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:52,307 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:52,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-01 16:38:52,307 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:52,307 INFO L82 PathProgramCache]: Analyzing trace with hash -346286449, now seen corresponding path program 24 times [2021-06-01 16:38:52,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:52,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907056921] [2021-06-01 16:38:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:52,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:52,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907056921] [2021-06-01 16:38:52,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907056921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:52,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:52,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:52,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923727712] [2021-06-01 16:38:52,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:52,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:52,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:52,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:52,633 INFO L87 Difference]: Start difference. First operand 3434 states and 9018 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:53,962 INFO L93 Difference]: Finished difference Result 5115 states and 12793 transitions. [2021-06-01 16:38:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 16:38:53,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:53,967 INFO L225 Difference]: With dead ends: 5115 [2021-06-01 16:38:53,967 INFO L226 Difference]: Without dead ends: 5115 [2021-06-01 16:38:53,967 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1077.3ms TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-06-01 16:38:53,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2021-06-01 16:38:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 3452. [2021-06-01 16:38:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3450 states have (on average 2.6269565217391304) internal successors, (9063), 3451 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:54,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9063 transitions. [2021-06-01 16:38:54,008 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9063 transitions. Word has length 113 [2021-06-01 16:38:54,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:54,008 INFO L482 AbstractCegarLoop]: Abstraction has 3452 states and 9063 transitions. [2021-06-01 16:38:54,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:54,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9063 transitions. [2021-06-01 16:38:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:54,011 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:54,011 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:54,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-01 16:38:54,012 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:54,012 INFO L82 PathProgramCache]: Analyzing trace with hash -816892643, now seen corresponding path program 25 times [2021-06-01 16:38:54,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:54,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091485831] [2021-06-01 16:38:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:54,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:54,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091485831] [2021-06-01 16:38:54,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091485831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:54,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:54,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:54,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366787169] [2021-06-01 16:38:54,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:54,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:54,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:54,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:54,333 INFO L87 Difference]: Start difference. First operand 3452 states and 9063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:55,361 INFO L93 Difference]: Finished difference Result 5010 states and 12385 transitions. [2021-06-01 16:38:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:55,365 INFO L225 Difference]: With dead ends: 5010 [2021-06-01 16:38:55,365 INFO L226 Difference]: Without dead ends: 5010 [2021-06-01 16:38:55,366 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 906.1ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2021-06-01 16:38:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 3460. [2021-06-01 16:38:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.626662810873337) internal successors, (9083), 3459 states have internal predecessors, (9083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9083 transitions. [2021-06-01 16:38:55,406 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9083 transitions. Word has length 113 [2021-06-01 16:38:55,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:55,406 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9083 transitions. [2021-06-01 16:38:55,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:55,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9083 transitions. [2021-06-01 16:38:55,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:55,409 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:55,409 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:55,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-01 16:38:55,409 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:55,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:55,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1051084967, now seen corresponding path program 26 times [2021-06-01 16:38:55,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:55,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46750474] [2021-06-01 16:38:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:55,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:55,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46750474] [2021-06-01 16:38:55,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46750474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:55,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:55,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:55,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878726861] [2021-06-01 16:38:55,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:55,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:55,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:55,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:55,711 INFO L87 Difference]: Start difference. First operand 3460 states and 9083 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:56,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:56,823 INFO L93 Difference]: Finished difference Result 5475 states and 13368 transitions. [2021-06-01 16:38:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:56,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:56,828 INFO L225 Difference]: With dead ends: 5475 [2021-06-01 16:38:56,828 INFO L226 Difference]: Without dead ends: 5475 [2021-06-01 16:38:56,828 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 928.3ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:56,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2021-06-01 16:38:56,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 3458. [2021-06-01 16:38:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-06-01 16:38:56,867 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-06-01 16:38:56,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:56,867 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-06-01 16:38:56,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-06-01 16:38:56,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:56,869 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:56,869 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:56,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-01 16:38:56,870 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:56,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:56,870 INFO L82 PathProgramCache]: Analyzing trace with hash -450005055, now seen corresponding path program 27 times [2021-06-01 16:38:56,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:56,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530546410] [2021-06-01 16:38:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:57,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:57,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530546410] [2021-06-01 16:38:57,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530546410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:57,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:57,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:57,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902010018] [2021-06-01 16:38:57,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:57,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:57,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:57,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:57,199 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:58,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:58,404 INFO L93 Difference]: Finished difference Result 4851 states and 12025 transitions. [2021-06-01 16:38:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 16:38:58,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:58,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:58,409 INFO L225 Difference]: With dead ends: 4851 [2021-06-01 16:38:58,409 INFO L226 Difference]: Without dead ends: 4851 [2021-06-01 16:38:58,409 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 980.9ms TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-06-01 16:38:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-06-01 16:38:58,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3458. [2021-06-01 16:38:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-06-01 16:38:58,450 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-06-01 16:38:58,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:58,450 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-06-01 16:38:58,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-06-01 16:38:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:58,453 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:58,453 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:58,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-01 16:38:58,453 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:58,454 INFO L82 PathProgramCache]: Analyzing trace with hash 511326097, now seen corresponding path program 28 times [2021-06-01 16:38:58,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:58,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574232951] [2021-06-01 16:38:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:58,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:58,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:58,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574232951] [2021-06-01 16:38:58,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574232951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:58,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:58,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:58,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631242869] [2021-06-01 16:38:58,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:58,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:58,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:58,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:58,749 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:59,622 INFO L93 Difference]: Finished difference Result 4343 states and 10955 transitions. [2021-06-01 16:38:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:38:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:59,626 INFO L225 Difference]: With dead ends: 4343 [2021-06-01 16:38:59,626 INFO L226 Difference]: Without dead ends: 4343 [2021-06-01 16:38:59,626 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 659.2ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2021-06-01 16:38:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 3428. [2021-06-01 16:38:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3426 states have (on average 2.62784588441331) internal successors, (9003), 3427 states have internal predecessors, (9003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9003 transitions. [2021-06-01 16:38:59,661 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9003 transitions. Word has length 113 [2021-06-01 16:38:59,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:59,661 INFO L482 AbstractCegarLoop]: Abstraction has 3428 states and 9003 transitions. [2021-06-01 16:38:59,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:59,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9003 transitions. [2021-06-01 16:38:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:38:59,664 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:59,664 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:59,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-01 16:38:59,664 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:38:59,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:59,665 INFO L82 PathProgramCache]: Analyzing trace with hash -278542381, now seen corresponding path program 29 times [2021-06-01 16:38:59,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:59,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490502615] [2021-06-01 16:38:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:59,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:59,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490502615] [2021-06-01 16:38:59,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490502615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:59,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:59,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:59,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349798246] [2021-06-01 16:38:59,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:59,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:59,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:59,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:59,955 INFO L87 Difference]: Start difference. First operand 3428 states and 9003 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:00,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:00,763 INFO L93 Difference]: Finished difference Result 5140 states and 12658 transitions. [2021-06-01 16:39:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:39:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:00,767 INFO L225 Difference]: With dead ends: 5140 [2021-06-01 16:39:00,767 INFO L226 Difference]: Without dead ends: 5140 [2021-06-01 16:39:00,768 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 661.9ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2021-06-01 16:39:00,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 3430. [2021-06-01 16:39:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3428 states have (on average 2.627771295215869) internal successors, (9008), 3429 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:00,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 9008 transitions. [2021-06-01 16:39:00,805 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 9008 transitions. Word has length 113 [2021-06-01 16:39:00,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:00,805 INFO L482 AbstractCegarLoop]: Abstraction has 3430 states and 9008 transitions. [2021-06-01 16:39:00,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 9008 transitions. [2021-06-01 16:39:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:39:00,808 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:00,808 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:00,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-01 16:39:00,808 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:00,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:00,808 INFO L82 PathProgramCache]: Analyzing trace with hash -512734705, now seen corresponding path program 30 times [2021-06-01 16:39:00,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:00,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188645114] [2021-06-01 16:39:00,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:01,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:01,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188645114] [2021-06-01 16:39:01,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188645114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:01,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:01,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:01,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402154998] [2021-06-01 16:39:01,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:01,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:01,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:01,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:01,097 INFO L87 Difference]: Start difference. First operand 3430 states and 9008 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:02,085 INFO L93 Difference]: Finished difference Result 4810 states and 11943 transitions. [2021-06-01 16:39:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:02,085 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:39:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:02,088 INFO L225 Difference]: With dead ends: 4810 [2021-06-01 16:39:02,088 INFO L226 Difference]: Without dead ends: 4810 [2021-06-01 16:39:02,088 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 733.5ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-06-01 16:39:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3422. [2021-06-01 16:39:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3420 states have (on average 2.6280701754385967) internal successors, (8988), 3421 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 8988 transitions. [2021-06-01 16:39:02,124 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 8988 transitions. Word has length 113 [2021-06-01 16:39:02,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:02,124 INFO L482 AbstractCegarLoop]: Abstraction has 3422 states and 8988 transitions. [2021-06-01 16:39:02,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:02,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 8988 transitions. [2021-06-01 16:39:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:39:02,127 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:02,127 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:02,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-01 16:39:02,127 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:02,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:02,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1209197875, now seen corresponding path program 31 times [2021-06-01 16:39:02,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:02,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810014929] [2021-06-01 16:39:02,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:02,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:02,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810014929] [2021-06-01 16:39:02,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810014929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:02,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:02,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:02,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300061835] [2021-06-01 16:39:02,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:02,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:02,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:02,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:02,435 INFO L87 Difference]: Start difference. First operand 3422 states and 8988 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:03,368 INFO L93 Difference]: Finished difference Result 4432 states and 11108 transitions. [2021-06-01 16:39:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:03,369 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:39:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:03,373 INFO L225 Difference]: With dead ends: 4432 [2021-06-01 16:39:03,373 INFO L226 Difference]: Without dead ends: 4432 [2021-06-01 16:39:03,374 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 717.9ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:03,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-06-01 16:39:03,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3412. [2021-06-01 16:39:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.6284457478005865) internal successors, (8963), 3411 states have internal predecessors, (8963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 8963 transitions. [2021-06-01 16:39:03,420 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 8963 transitions. Word has length 113 [2021-06-01 16:39:03,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:03,420 INFO L482 AbstractCegarLoop]: Abstraction has 3412 states and 8963 transitions. [2021-06-01 16:39:03,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:03,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 8963 transitions. [2021-06-01 16:39:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:39:03,423 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:03,424 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:03,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-01 16:39:03,424 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:03,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1443390199, now seen corresponding path program 32 times [2021-06-01 16:39:03,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:03,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20188675] [2021-06-01 16:39:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:03,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:03,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20188675] [2021-06-01 16:39:03,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20188675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:03,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:03,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:03,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062399816] [2021-06-01 16:39:03,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:03,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:03,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:03,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:03,759 INFO L87 Difference]: Start difference. First operand 3412 states and 8963 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:04,789 INFO L93 Difference]: Finished difference Result 4897 states and 12091 transitions. [2021-06-01 16:39:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:04,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:39:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:04,793 INFO L225 Difference]: With dead ends: 4897 [2021-06-01 16:39:04,793 INFO L226 Difference]: Without dead ends: 4897 [2021-06-01 16:39:04,793 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 794.1ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:04,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2021-06-01 16:39:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 3410. [2021-06-01 16:39:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3408 states have (on average 2.6285211267605635) internal successors, (8958), 3409 states have internal predecessors, (8958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 8958 transitions. [2021-06-01 16:39:04,828 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 8958 transitions. Word has length 113 [2021-06-01 16:39:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:04,828 INFO L482 AbstractCegarLoop]: Abstraction has 3410 states and 8958 transitions. [2021-06-01 16:39:04,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 8958 transitions. [2021-06-01 16:39:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-01 16:39:04,831 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:04,831 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:04,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-01 16:39:04,831 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:04,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:04,831 INFO L82 PathProgramCache]: Analyzing trace with hash -842310287, now seen corresponding path program 33 times [2021-06-01 16:39:04,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:04,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416219683] [2021-06-01 16:39:04,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:05,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:05,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416219683] [2021-06-01 16:39:05,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416219683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:05,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:05,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:05,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202471947] [2021-06-01 16:39:05,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:05,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:05,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:05,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:05,142 INFO L87 Difference]: Start difference. First operand 3410 states and 8958 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:06,152 INFO L93 Difference]: Finished difference Result 4093 states and 10381 transitions. [2021-06-01 16:39:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:39:06,152 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-01 16:39:06,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:06,156 INFO L225 Difference]: With dead ends: 4093 [2021-06-01 16:39:06,156 INFO L226 Difference]: Without dead ends: 4093 [2021-06-01 16:39:06,156 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 818.6ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-06-01 16:39:06,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2021-06-01 16:39:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3037. [2021-06-01 16:39:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3036 states have (on average 2.6831357048748354) internal successors, (8146), 3036 states have internal predecessors, (8146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 8146 transitions. [2021-06-01 16:39:06,188 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 8146 transitions. Word has length 113 [2021-06-01 16:39:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:06,188 INFO L482 AbstractCegarLoop]: Abstraction has 3037 states and 8146 transitions. [2021-06-01 16:39:06,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 8146 transitions. [2021-06-01 16:39:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:06,190 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:06,190 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:06,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-01 16:39:06,191 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:06,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:06,191 INFO L82 PathProgramCache]: Analyzing trace with hash -264861615, now seen corresponding path program 1 times [2021-06-01 16:39:06,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:06,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812113924] [2021-06-01 16:39:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:06,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:06,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812113924] [2021-06-01 16:39:06,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812113924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:06,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:06,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:39:06,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381020893] [2021-06-01 16:39:06,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:39:06,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:06,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:39:06,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:39:06,418 INFO L87 Difference]: Start difference. First operand 3037 states and 8146 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:06,725 INFO L93 Difference]: Finished difference Result 3487 states and 9268 transitions. [2021-06-01 16:39:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:39:06,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:06,728 INFO L225 Difference]: With dead ends: 3487 [2021-06-01 16:39:06,728 INFO L226 Difference]: Without dead ends: 3487 [2021-06-01 16:39:06,728 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 316.5ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:39:06,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2021-06-01 16:39:06,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3205. [2021-06-01 16:39:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 2.6697877652933832) internal successors, (8554), 3204 states have internal predecessors, (8554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 8554 transitions. [2021-06-01 16:39:06,761 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 8554 transitions. Word has length 119 [2021-06-01 16:39:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:06,761 INFO L482 AbstractCegarLoop]: Abstraction has 3205 states and 8554 transitions. [2021-06-01 16:39:06,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 8554 transitions. [2021-06-01 16:39:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:06,764 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:06,764 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:06,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-01 16:39:06,764 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:06,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1173814451, now seen corresponding path program 2 times [2021-06-01 16:39:06,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:06,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130137161] [2021-06-01 16:39:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:07,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:07,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130137161] [2021-06-01 16:39:07,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130137161] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:07,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:07,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:07,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139055402] [2021-06-01 16:39:07,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:07,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:07,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:07,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:07,465 INFO L87 Difference]: Start difference. First operand 3205 states and 8554 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:10,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:10,158 INFO L93 Difference]: Finished difference Result 4951 states and 13018 transitions. [2021-06-01 16:39:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:39:10,158 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:10,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:10,161 INFO L225 Difference]: With dead ends: 4951 [2021-06-01 16:39:10,161 INFO L226 Difference]: Without dead ends: 4756 [2021-06-01 16:39:10,162 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2272.3ms TimeCoverageRelationStatistics Valid=569, Invalid=2853, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:39:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2021-06-01 16:39:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3769. [2021-06-01 16:39:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3768 states have (on average 2.6910828025477707) internal successors, (10140), 3768 states have internal predecessors, (10140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 10140 transitions. [2021-06-01 16:39:10,204 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 10140 transitions. Word has length 119 [2021-06-01 16:39:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:10,204 INFO L482 AbstractCegarLoop]: Abstraction has 3769 states and 10140 transitions. [2021-06-01 16:39:10,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:10,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 10140 transitions. [2021-06-01 16:39:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:10,206 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:10,207 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:10,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-01 16:39:10,207 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:10,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:10,207 INFO L82 PathProgramCache]: Analyzing trace with hash -64175185, now seen corresponding path program 1 times [2021-06-01 16:39:10,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:10,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602806499] [2021-06-01 16:39:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:10,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:10,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602806499] [2021-06-01 16:39:10,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602806499] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:10,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:10,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-01 16:39:10,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157743743] [2021-06-01 16:39:10,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-01 16:39:10,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:10,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-01 16:39:10,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-06-01 16:39:10,693 INFO L87 Difference]: Start difference. First operand 3769 states and 10140 transitions. Second operand has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:12,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:12,193 INFO L93 Difference]: Finished difference Result 6389 states and 17123 transitions. [2021-06-01 16:39:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:39:12,193 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:12,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:12,199 INFO L225 Difference]: With dead ends: 6389 [2021-06-01 16:39:12,199 INFO L226 Difference]: Without dead ends: 6339 [2021-06-01 16:39:12,199 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1144.7ms TimeCoverageRelationStatistics Valid=430, Invalid=1550, Unknown=0, NotChecked=0, Total=1980 [2021-06-01 16:39:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6339 states. [2021-06-01 16:39:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6339 to 6251. [2021-06-01 16:39:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 6250 states have (on average 2.70224) internal successors, (16889), 6250 states have internal predecessors, (16889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:12,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 16889 transitions. [2021-06-01 16:39:12,287 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 16889 transitions. Word has length 119 [2021-06-01 16:39:12,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:12,288 INFO L482 AbstractCegarLoop]: Abstraction has 6251 states and 16889 transitions. [2021-06-01 16:39:12,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:12,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 16889 transitions. [2021-06-01 16:39:12,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:12,292 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:12,292 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:12,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-01 16:39:12,292 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:12,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:12,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2117305647, now seen corresponding path program 3 times [2021-06-01 16:39:12,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:12,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215560540] [2021-06-01 16:39:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:12,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:12,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215560540] [2021-06-01 16:39:12,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215560540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:12,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:12,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:39:12,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000487287] [2021-06-01 16:39:12,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:39:12,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:12,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:39:12,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:39:12,977 INFO L87 Difference]: Start difference. First operand 6251 states and 16889 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:13,985 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-01 16:39:14,217 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-01 16:39:16,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:16,078 INFO L93 Difference]: Finished difference Result 8779 states and 23303 transitions. [2021-06-01 16:39:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:39:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:16,085 INFO L225 Difference]: With dead ends: 8779 [2021-06-01 16:39:16,085 INFO L226 Difference]: Without dead ends: 8013 [2021-06-01 16:39:16,087 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 2615.4ms TimeCoverageRelationStatistics Valid=646, Invalid=3014, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:39:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2021-06-01 16:39:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 6371. [2021-06-01 16:39:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6371 states, 6370 states have (on average 2.685243328100471) internal successors, (17105), 6370 states have internal predecessors, (17105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:16,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 17105 transitions. [2021-06-01 16:39:16,175 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 17105 transitions. Word has length 119 [2021-06-01 16:39:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:16,175 INFO L482 AbstractCegarLoop]: Abstraction has 6371 states and 17105 transitions. [2021-06-01 16:39:16,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 17105 transitions. [2021-06-01 16:39:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:16,181 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:16,181 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:16,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-01 16:39:16,182 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:16,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:16,182 INFO L82 PathProgramCache]: Analyzing trace with hash -908880283, now seen corresponding path program 4 times [2021-06-01 16:39:16,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:16,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727616411] [2021-06-01 16:39:16,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:16,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:16,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727616411] [2021-06-01 16:39:16,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727616411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:16,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:16,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:39:16,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263287101] [2021-06-01 16:39:16,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:39:16,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:16,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:39:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:39:16,891 INFO L87 Difference]: Start difference. First operand 6371 states and 17105 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:19,962 INFO L93 Difference]: Finished difference Result 8204 states and 21680 transitions. [2021-06-01 16:39:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-01 16:39:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:19,970 INFO L225 Difference]: With dead ends: 8204 [2021-06-01 16:39:19,970 INFO L226 Difference]: Without dead ends: 7365 [2021-06-01 16:39:19,970 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 2601.7ms TimeCoverageRelationStatistics Valid=649, Invalid=3257, Unknown=0, NotChecked=0, Total=3906 [2021-06-01 16:39:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2021-06-01 16:39:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 5723. [2021-06-01 16:39:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5722 states have (on average 2.686648025166026) internal successors, (15373), 5722 states have internal predecessors, (15373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15373 transitions. [2021-06-01 16:39:20,042 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15373 transitions. Word has length 119 [2021-06-01 16:39:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:20,042 INFO L482 AbstractCegarLoop]: Abstraction has 5723 states and 15373 transitions. [2021-06-01 16:39:20,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15373 transitions. [2021-06-01 16:39:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:20,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:20,047 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:20,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-01 16:39:20,047 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:20,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1513981887, now seen corresponding path program 5 times [2021-06-01 16:39:20,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:20,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361258576] [2021-06-01 16:39:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:20,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:20,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361258576] [2021-06-01 16:39:20,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361258576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:20,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:20,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:20,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419325639] [2021-06-01 16:39:20,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:20,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:20,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:20,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:20,761 INFO L87 Difference]: Start difference. First operand 5723 states and 15373 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:23,586 INFO L93 Difference]: Finished difference Result 6859 states and 18101 transitions. [2021-06-01 16:39:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:39:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:23,591 INFO L225 Difference]: With dead ends: 6859 [2021-06-01 16:39:23,591 INFO L226 Difference]: Without dead ends: 6532 [2021-06-01 16:39:23,592 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2363.1ms TimeCoverageRelationStatistics Valid=620, Invalid=2802, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:39:23,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2021-06-01 16:39:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 5715. [2021-06-01 16:39:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 5714 states have (on average 2.6862093104655234) internal successors, (15349), 5714 states have internal predecessors, (15349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 15349 transitions. [2021-06-01 16:39:23,648 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 15349 transitions. Word has length 119 [2021-06-01 16:39:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:23,648 INFO L482 AbstractCegarLoop]: Abstraction has 5715 states and 15349 transitions. [2021-06-01 16:39:23,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 15349 transitions. [2021-06-01 16:39:23,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:23,653 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:23,653 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:23,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-01 16:39:23,653 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:23,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:23,653 INFO L82 PathProgramCache]: Analyzing trace with hash -809666573, now seen corresponding path program 6 times [2021-06-01 16:39:23,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:23,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276234495] [2021-06-01 16:39:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:24,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:24,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276234495] [2021-06-01 16:39:24,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276234495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:24,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:24,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:39:24,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867982724] [2021-06-01 16:39:24,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:39:24,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:24,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:39:24,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:39:24,440 INFO L87 Difference]: Start difference. First operand 5715 states and 15349 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:27,706 INFO L93 Difference]: Finished difference Result 6577 states and 17301 transitions. [2021-06-01 16:39:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-01 16:39:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:27,712 INFO L225 Difference]: With dead ends: 6577 [2021-06-01 16:39:27,712 INFO L226 Difference]: Without dead ends: 6190 [2021-06-01 16:39:27,712 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 2909.6ms TimeCoverageRelationStatistics Valid=793, Invalid=3763, Unknown=0, NotChecked=0, Total=4556 [2021-06-01 16:39:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-06-01 16:39:27,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5707. [2021-06-01 16:39:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5707 states, 5706 states have (on average 2.6843673326323167) internal successors, (15317), 5706 states have internal predecessors, (15317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5707 states to 5707 states and 15317 transitions. [2021-06-01 16:39:27,771 INFO L78 Accepts]: Start accepts. Automaton has 5707 states and 15317 transitions. Word has length 119 [2021-06-01 16:39:27,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:27,771 INFO L482 AbstractCegarLoop]: Abstraction has 5707 states and 15317 transitions. [2021-06-01 16:39:27,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5707 states and 15317 transitions. [2021-06-01 16:39:27,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:27,775 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:27,775 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:27,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-01 16:39:27,775 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:27,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:27,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1242567051, now seen corresponding path program 7 times [2021-06-01 16:39:27,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:27,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369044418] [2021-06-01 16:39:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:28,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:28,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:28,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369044418] [2021-06-01 16:39:28,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369044418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:28,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:28,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:28,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046491345] [2021-06-01 16:39:28,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:28,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:28,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:28,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:28,471 INFO L87 Difference]: Start difference. First operand 5707 states and 15317 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:31,343 INFO L93 Difference]: Finished difference Result 8739 states and 23005 transitions. [2021-06-01 16:39:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:39:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:31,349 INFO L225 Difference]: With dead ends: 8739 [2021-06-01 16:39:31,349 INFO L226 Difference]: Without dead ends: 8440 [2021-06-01 16:39:31,350 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 2442.2ms TimeCoverageRelationStatistics Valid=596, Invalid=2944, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:39:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-06-01 16:39:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 6343. [2021-06-01 16:39:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 6342 states have (on average 2.6825922421948913) internal successors, (17013), 6342 states have internal predecessors, (17013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 17013 transitions. [2021-06-01 16:39:31,424 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 17013 transitions. Word has length 119 [2021-06-01 16:39:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:31,424 INFO L482 AbstractCegarLoop]: Abstraction has 6343 states and 17013 transitions. [2021-06-01 16:39:31,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 17013 transitions. [2021-06-01 16:39:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:31,430 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:31,430 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:31,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-01 16:39:31,430 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:31,430 INFO L82 PathProgramCache]: Analyzing trace with hash -238719853, now seen corresponding path program 8 times [2021-06-01 16:39:31,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:31,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157700398] [2021-06-01 16:39:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:32,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:32,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157700398] [2021-06-01 16:39:32,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157700398] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:32,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:32,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:39:32,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112788243] [2021-06-01 16:39:32,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:39:32,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:32,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:39:32,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:39:32,081 INFO L87 Difference]: Start difference. First operand 6343 states and 17013 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:35,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:35,134 INFO L93 Difference]: Finished difference Result 9293 states and 24519 transitions. [2021-06-01 16:39:35,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:39:35,135 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:35,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:35,142 INFO L225 Difference]: With dead ends: 9293 [2021-06-01 16:39:35,142 INFO L226 Difference]: Without dead ends: 8527 [2021-06-01 16:39:35,142 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 2636.8ms TimeCoverageRelationStatistics Valid=675, Invalid=3107, Unknown=0, NotChecked=0, Total=3782 [2021-06-01 16:39:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2021-06-01 16:39:35,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 6463. [2021-06-01 16:39:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6463 states, 6462 states have (on average 2.6662024141132776) internal successors, (17229), 6462 states have internal predecessors, (17229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:35,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6463 states to 6463 states and 17229 transitions. [2021-06-01 16:39:35,219 INFO L78 Accepts]: Start accepts. Automaton has 6463 states and 17229 transitions. Word has length 119 [2021-06-01 16:39:35,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:35,219 INFO L482 AbstractCegarLoop]: Abstraction has 6463 states and 17229 transitions. [2021-06-01 16:39:35,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:35,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6463 states and 17229 transitions. [2021-06-01 16:39:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:35,224 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:35,224 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:35,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-01 16:39:35,225 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash 969705511, now seen corresponding path program 9 times [2021-06-01 16:39:35,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:35,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314957008] [2021-06-01 16:39:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:35,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:35,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314957008] [2021-06-01 16:39:35,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314957008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:35,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:35,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:39:35,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557638800] [2021-06-01 16:39:35,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:39:35,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:35,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:39:35,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:39:35,876 INFO L87 Difference]: Start difference. First operand 6463 states and 17229 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:39,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:39,001 INFO L93 Difference]: Finished difference Result 8718 states and 22896 transitions. [2021-06-01 16:39:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-01 16:39:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:39,007 INFO L225 Difference]: With dead ends: 8718 [2021-06-01 16:39:39,007 INFO L226 Difference]: Without dead ends: 7879 [2021-06-01 16:39:39,008 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 2735.9ms TimeCoverageRelationStatistics Valid=680, Invalid=3352, Unknown=0, NotChecked=0, Total=4032 [2021-06-01 16:39:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2021-06-01 16:39:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 5815. [2021-06-01 16:39:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5815 states, 5814 states have (on average 2.66546267629859) internal successors, (15497), 5814 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:39,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 15497 transitions. [2021-06-01 16:39:39,073 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 15497 transitions. Word has length 119 [2021-06-01 16:39:39,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:39,073 INFO L482 AbstractCegarLoop]: Abstraction has 5815 states and 15497 transitions. [2021-06-01 16:39:39,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 15497 transitions. [2021-06-01 16:39:39,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:39,077 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:39,077 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:39,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-01 16:39:39,077 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:39,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:39,077 INFO L82 PathProgramCache]: Analyzing trace with hash 364603907, now seen corresponding path program 10 times [2021-06-01 16:39:39,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:39,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170470194] [2021-06-01 16:39:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:39,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:39,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170470194] [2021-06-01 16:39:39,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170470194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:39,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:39,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:39,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710591449] [2021-06-01 16:39:39,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:39,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:39,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:39,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:39,773 INFO L87 Difference]: Start difference. First operand 5815 states and 15497 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:42,579 INFO L93 Difference]: Finished difference Result 7345 states and 19235 transitions. [2021-06-01 16:39:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:39:42,580 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:42,585 INFO L225 Difference]: With dead ends: 7345 [2021-06-01 16:39:42,586 INFO L226 Difference]: Without dead ends: 7018 [2021-06-01 16:39:42,586 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 2533.7ms TimeCoverageRelationStatistics Valid=650, Invalid=2890, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:39:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2021-06-01 16:39:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 5695. [2021-06-01 16:39:42,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 5694 states have (on average 2.6794871794871793) internal successors, (15257), 5694 states have internal predecessors, (15257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 15257 transitions. [2021-06-01 16:39:42,650 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 15257 transitions. Word has length 119 [2021-06-01 16:39:42,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:42,650 INFO L482 AbstractCegarLoop]: Abstraction has 5695 states and 15257 transitions. [2021-06-01 16:39:42,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:42,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 15257 transitions. [2021-06-01 16:39:42,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:42,654 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:42,654 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:42,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-01 16:39:42,655 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:42,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1137653615, now seen corresponding path program 11 times [2021-06-01 16:39:42,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:42,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676640844] [2021-06-01 16:39:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:43,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:43,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676640844] [2021-06-01 16:39:43,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676640844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:43,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:43,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:43,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330865936] [2021-06-01 16:39:43,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:43,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:43,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:43,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:43,345 INFO L87 Difference]: Start difference. First operand 5695 states and 15257 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:45,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:45,853 INFO L93 Difference]: Finished difference Result 8203 states and 21601 transitions. [2021-06-01 16:39:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:39:45,854 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:45,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:45,861 INFO L225 Difference]: With dead ends: 8203 [2021-06-01 16:39:45,861 INFO L226 Difference]: Without dead ends: 7904 [2021-06-01 16:39:45,861 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2246.9ms TimeCoverageRelationStatistics Valid=544, Invalid=2648, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:39:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2021-06-01 16:39:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6271. [2021-06-01 16:39:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 6270 states have (on average 2.6751196172248806) internal successors, (16773), 6270 states have internal predecessors, (16773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 16773 transitions. [2021-06-01 16:39:45,935 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 16773 transitions. Word has length 119 [2021-06-01 16:39:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:45,936 INFO L482 AbstractCegarLoop]: Abstraction has 6271 states and 16773 transitions. [2021-06-01 16:39:45,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:45,936 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 16773 transitions. [2021-06-01 16:39:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:45,940 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:45,940 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:45,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-01 16:39:45,941 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:45,941 INFO L82 PathProgramCache]: Analyzing trace with hash -133806417, now seen corresponding path program 12 times [2021-06-01 16:39:45,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:45,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969491164] [2021-06-01 16:39:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:46,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:46,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969491164] [2021-06-01 16:39:46,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969491164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:46,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:46,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:39:46,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14300092] [2021-06-01 16:39:46,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:39:46,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:46,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:39:46,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:39:46,642 INFO L87 Difference]: Start difference. First operand 6271 states and 16773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:49,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:49,540 INFO L93 Difference]: Finished difference Result 8784 states and 23053 transitions. [2021-06-01 16:39:49,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:39:49,541 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:49,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:49,547 INFO L225 Difference]: With dead ends: 8784 [2021-06-01 16:39:49,547 INFO L226 Difference]: Without dead ends: 8018 [2021-06-01 16:39:49,547 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 2600.8ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:39:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8018 states. [2021-06-01 16:39:49,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8018 to 6391. [2021-06-01 16:39:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 6390 states have (on average 2.6586854460093896) internal successors, (16989), 6390 states have internal predecessors, (16989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 16989 transitions. [2021-06-01 16:39:49,618 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 16989 transitions. Word has length 119 [2021-06-01 16:39:49,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:49,618 INFO L482 AbstractCegarLoop]: Abstraction has 6391 states and 16989 transitions. [2021-06-01 16:39:49,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 16989 transitions. [2021-06-01 16:39:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:49,623 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:49,623 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:49,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-01 16:39:49,623 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:49,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:49,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1074618947, now seen corresponding path program 13 times [2021-06-01 16:39:49,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:49,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260276468] [2021-06-01 16:39:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:50,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:50,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260276468] [2021-06-01 16:39:50,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260276468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:50,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:50,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:39:50,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793885761] [2021-06-01 16:39:50,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:39:50,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:50,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:39:50,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:39:50,298 INFO L87 Difference]: Start difference. First operand 6391 states and 16989 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:53,543 INFO L93 Difference]: Finished difference Result 8209 states and 21430 transitions. [2021-06-01 16:39:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-01 16:39:53,543 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:53,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:53,550 INFO L225 Difference]: With dead ends: 8209 [2021-06-01 16:39:53,550 INFO L226 Difference]: Without dead ends: 7370 [2021-06-01 16:39:53,550 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 2714.0ms TimeCoverageRelationStatistics Valid=662, Invalid=3370, Unknown=0, NotChecked=0, Total=4032 [2021-06-01 16:39:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7370 states. [2021-06-01 16:39:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7370 to 5743. [2021-06-01 16:39:53,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 5742 states have (on average 2.648728665970045) internal successors, (15209), 5742 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 15209 transitions. [2021-06-01 16:39:53,614 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 15209 transitions. Word has length 119 [2021-06-01 16:39:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:53,614 INFO L482 AbstractCegarLoop]: Abstraction has 5743 states and 15209 transitions. [2021-06-01 16:39:53,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 15209 transitions. [2021-06-01 16:39:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:53,618 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:53,618 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:53,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-01 16:39:53,619 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:53,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1731550431, now seen corresponding path program 14 times [2021-06-01 16:39:53,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:53,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861507117] [2021-06-01 16:39:53,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:54,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:54,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861507117] [2021-06-01 16:39:54,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861507117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:54,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:54,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:54,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88217832] [2021-06-01 16:39:54,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:54,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:54,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:54,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:54,274 INFO L87 Difference]: Start difference. First operand 5743 states and 15209 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:57,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:57,051 INFO L93 Difference]: Finished difference Result 7643 states and 19796 transitions. [2021-06-01 16:39:57,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:39:57,052 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:39:57,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:57,058 INFO L225 Difference]: With dead ends: 7643 [2021-06-01 16:39:57,058 INFO L226 Difference]: Without dead ends: 7143 [2021-06-01 16:39:57,059 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 2367.1ms TimeCoverageRelationStatistics Valid=590, Invalid=2950, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:39:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7143 states. [2021-06-01 16:39:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7143 to 5575. [2021-06-01 16:39:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 2.6639756010046645) internal successors, (14849), 5574 states have internal predecessors, (14849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 14849 transitions. [2021-06-01 16:39:57,123 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 14849 transitions. Word has length 119 [2021-06-01 16:39:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:57,123 INFO L482 AbstractCegarLoop]: Abstraction has 5575 states and 14849 transitions. [2021-06-01 16:39:57,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:57,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 14849 transitions. [2021-06-01 16:39:57,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:39:57,127 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:57,127 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:57,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-01 16:39:57,127 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:39:57,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:57,128 INFO L82 PathProgramCache]: Analyzing trace with hash -884383883, now seen corresponding path program 15 times [2021-06-01 16:39:57,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:57,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729869123] [2021-06-01 16:39:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:57,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:57,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729869123] [2021-06-01 16:39:57,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729869123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:57,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:57,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:39:57,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137726217] [2021-06-01 16:39:57,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:39:57,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:57,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:39:57,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:39:57,832 INFO L87 Difference]: Start difference. First operand 5575 states and 14849 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:00,582 INFO L93 Difference]: Finished difference Result 6701 states and 17443 transitions. [2021-06-01 16:40:00,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:40:00,582 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:00,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:00,587 INFO L225 Difference]: With dead ends: 6701 [2021-06-01 16:40:00,587 INFO L226 Difference]: Without dead ends: 6398 [2021-06-01 16:40:00,588 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 2494.1ms TimeCoverageRelationStatistics Valid=650, Invalid=2890, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:40:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-06-01 16:40:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 5583. [2021-06-01 16:40:00,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:00,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-06-01 16:40:00,645 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-06-01 16:40:00,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:00,645 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-06-01 16:40:00,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-06-01 16:40:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:00,649 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:00,649 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:00,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-01 16:40:00,649 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:00,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:00,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1266691921, now seen corresponding path program 16 times [2021-06-01 16:40:00,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:00,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514873280] [2021-06-01 16:40:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:01,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:01,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514873280] [2021-06-01 16:40:01,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514873280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:01,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:01,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:40:01,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220649971] [2021-06-01 16:40:01,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:40:01,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:01,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:40:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:40:01,450 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:04,604 INFO L93 Difference]: Finished difference Result 6628 states and 17272 transitions. [2021-06-01 16:40:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-01 16:40:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:04,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:04,610 INFO L225 Difference]: With dead ends: 6628 [2021-06-01 16:40:04,610 INFO L226 Difference]: Without dead ends: 6268 [2021-06-01 16:40:04,610 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 2894.8ms TimeCoverageRelationStatistics Valid=768, Invalid=3788, Unknown=0, NotChecked=0, Total=4556 [2021-06-01 16:40:04,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-06-01 16:40:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 5555. [2021-06-01 16:40:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 5554 states have (on average 2.6660064818149083) internal successors, (14807), 5554 states have internal predecessors, (14807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:04,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 14807 transitions. [2021-06-01 16:40:04,669 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 14807 transitions. Word has length 119 [2021-06-01 16:40:04,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:04,669 INFO L482 AbstractCegarLoop]: Abstraction has 5555 states and 14807 transitions. [2021-06-01 16:40:04,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:04,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 14807 transitions. [2021-06-01 16:40:04,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:04,673 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:04,673 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:04,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-01 16:40:04,673 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:04,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:04,673 INFO L82 PathProgramCache]: Analyzing trace with hash -873582399, now seen corresponding path program 17 times [2021-06-01 16:40:04,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:04,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841454939] [2021-06-01 16:40:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:05,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:05,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841454939] [2021-06-01 16:40:05,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841454939] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:05,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:05,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:40:05,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411298590] [2021-06-01 16:40:05,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:40:05,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:05,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:40:05,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:40:05,566 INFO L87 Difference]: Start difference. First operand 5555 states and 14807 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:08,933 INFO L93 Difference]: Finished difference Result 6333 states and 16469 transitions. [2021-06-01 16:40:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-01 16:40:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:08,938 INFO L225 Difference]: With dead ends: 6333 [2021-06-01 16:40:08,938 INFO L226 Difference]: Without dead ends: 6018 [2021-06-01 16:40:08,938 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 3145.4ms TimeCoverageRelationStatistics Valid=858, Invalid=4112, Unknown=0, NotChecked=0, Total=4970 [2021-06-01 16:40:08,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-06-01 16:40:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 5583. [2021-06-01 16:40:08,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:08,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-06-01 16:40:08,996 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-06-01 16:40:08,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:08,996 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-06-01 16:40:08,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-06-01 16:40:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:09,000 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:09,000 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:09,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-01 16:40:09,000 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:09,001 INFO L82 PathProgramCache]: Analyzing trace with hash -354221629, now seen corresponding path program 18 times [2021-06-01 16:40:09,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:09,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919339] [2021-06-01 16:40:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:09,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:09,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919339] [2021-06-01 16:40:09,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:09,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:09,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:40:09,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020201637] [2021-06-01 16:40:09,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:40:09,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:09,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:40:09,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:40:09,897 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:13,271 INFO L93 Difference]: Finished difference Result 6311 states and 16401 transitions. [2021-06-01 16:40:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-01 16:40:13,272 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:13,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:13,276 INFO L225 Difference]: With dead ends: 6311 [2021-06-01 16:40:13,276 INFO L226 Difference]: Without dead ends: 6008 [2021-06-01 16:40:13,276 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 3203.6ms TimeCoverageRelationStatistics Valid=846, Invalid=4124, Unknown=0, NotChecked=0, Total=4970 [2021-06-01 16:40:13,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-06-01 16:40:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 5591. [2021-06-01 16:40:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 2.662075134168157) internal successors, (14881), 5590 states have internal predecessors, (14881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14881 transitions. [2021-06-01 16:40:13,331 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14881 transitions. Word has length 119 [2021-06-01 16:40:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:13,331 INFO L482 AbstractCegarLoop]: Abstraction has 5591 states and 14881 transitions. [2021-06-01 16:40:13,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:13,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14881 transitions. [2021-06-01 16:40:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:13,335 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:13,335 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:13,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-01 16:40:13,335 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:13,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1625630175, now seen corresponding path program 19 times [2021-06-01 16:40:13,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:13,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388856093] [2021-06-01 16:40:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:14,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:14,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388856093] [2021-06-01 16:40:14,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388856093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:14,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:14,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:14,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157793469] [2021-06-01 16:40:14,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:14,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:14,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:14,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:14,032 INFO L87 Difference]: Start difference. First operand 5591 states and 14881 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:15,789 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-01 16:40:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:16,782 INFO L93 Difference]: Finished difference Result 6234 states and 16220 transitions. [2021-06-01 16:40:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:40:16,782 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:16,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:16,786 INFO L225 Difference]: With dead ends: 6234 [2021-06-01 16:40:16,786 INFO L226 Difference]: Without dead ends: 5814 [2021-06-01 16:40:16,787 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 2460.0ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:40:16,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2021-06-01 16:40:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5499. [2021-06-01 16:40:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6655147326300472) internal successors, (14655), 5498 states have internal predecessors, (14655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:16,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14655 transitions. [2021-06-01 16:40:16,840 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14655 transitions. Word has length 119 [2021-06-01 16:40:16,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:16,840 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14655 transitions. [2021-06-01 16:40:16,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:16,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14655 transitions. [2021-06-01 16:40:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:16,844 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:16,844 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:16,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-01 16:40:16,844 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:16,845 INFO L82 PathProgramCache]: Analyzing trace with hash 794997137, now seen corresponding path program 20 times [2021-06-01 16:40:16,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:16,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721426912] [2021-06-01 16:40:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:17,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:17,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721426912] [2021-06-01 16:40:17,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721426912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:17,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:17,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:17,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313885438] [2021-06-01 16:40:17,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:17,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:17,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:17,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:17,477 INFO L87 Difference]: Start difference. First operand 5499 states and 14655 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:19,843 INFO L93 Difference]: Finished difference Result 6628 states and 17443 transitions. [2021-06-01 16:40:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:40:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:19,850 INFO L225 Difference]: With dead ends: 6628 [2021-06-01 16:40:19,850 INFO L226 Difference]: Without dead ends: 6419 [2021-06-01 16:40:19,850 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 2071.4ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:40:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2021-06-01 16:40:19,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 5835. [2021-06-01 16:40:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5835 states, 5834 states have (on average 2.655296537538567) internal successors, (15491), 5834 states have internal predecessors, (15491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 15491 transitions. [2021-06-01 16:40:19,915 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 15491 transitions. Word has length 119 [2021-06-01 16:40:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:19,915 INFO L482 AbstractCegarLoop]: Abstraction has 5835 states and 15491 transitions. [2021-06-01 16:40:19,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 15491 transitions. [2021-06-01 16:40:19,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:19,920 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:19,920 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:19,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-01 16:40:19,920 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:19,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:19,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1798844335, now seen corresponding path program 21 times [2021-06-01 16:40:19,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:19,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310276326] [2021-06-01 16:40:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:20,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:20,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310276326] [2021-06-01 16:40:20,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310276326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:20,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:20,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:40:20,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401858263] [2021-06-01 16:40:20,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:40:20,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:20,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:40:20,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:40:20,538 INFO L87 Difference]: Start difference. First operand 5835 states and 15491 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:23,159 INFO L93 Difference]: Finished difference Result 6975 states and 18261 transitions. [2021-06-01 16:40:23,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:40:23,159 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:23,166 INFO L225 Difference]: With dead ends: 6975 [2021-06-01 16:40:23,166 INFO L226 Difference]: Without dead ends: 6499 [2021-06-01 16:40:23,167 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 2304.2ms TimeCoverageRelationStatistics Valid=560, Invalid=2746, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:40:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2021-06-01 16:40:23,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5907. [2021-06-01 16:40:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5906 states have (on average 2.643244158482899) internal successors, (15611), 5906 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 15611 transitions. [2021-06-01 16:40:23,245 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 15611 transitions. Word has length 119 [2021-06-01 16:40:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:23,245 INFO L482 AbstractCegarLoop]: Abstraction has 5907 states and 15611 transitions. [2021-06-01 16:40:23,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 15611 transitions. [2021-06-01 16:40:23,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:23,250 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:23,250 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:23,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-01 16:40:23,250 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:23,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:23,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1287697597, now seen corresponding path program 22 times [2021-06-01 16:40:23,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:23,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878390916] [2021-06-01 16:40:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:23,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:23,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:23,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878390916] [2021-06-01 16:40:23,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878390916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:23,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:23,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:40:23,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711897254] [2021-06-01 16:40:23,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:40:23,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:23,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:40:23,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:40:23,951 INFO L87 Difference]: Start difference. First operand 5907 states and 15611 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:26,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:26,484 INFO L93 Difference]: Finished difference Result 6632 states and 17338 transitions. [2021-06-01 16:40:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:40:26,484 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:26,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:26,488 INFO L225 Difference]: With dead ends: 6632 [2021-06-01 16:40:26,488 INFO L226 Difference]: Without dead ends: 6091 [2021-06-01 16:40:26,488 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2282.7ms TimeCoverageRelationStatistics Valid=552, Invalid=2870, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:40:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2021-06-01 16:40:26,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5499. [2021-06-01 16:40:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.661149508912332) internal successors, (14631), 5498 states have internal predecessors, (14631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14631 transitions. [2021-06-01 16:40:26,547 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14631 transitions. Word has length 119 [2021-06-01 16:40:26,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:26,547 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14631 transitions. [2021-06-01 16:40:26,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14631 transitions. [2021-06-01 16:40:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:26,552 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:26,552 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:26,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-01 16:40:26,552 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:26,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:26,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1892799201, now seen corresponding path program 23 times [2021-06-01 16:40:26,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:26,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187444645] [2021-06-01 16:40:26,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:27,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:27,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:27,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187444645] [2021-06-01 16:40:27,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187444645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:27,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:27,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:27,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877693760] [2021-06-01 16:40:27,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:27,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:27,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:27,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:27,187 INFO L87 Difference]: Start difference. First operand 5499 states and 14631 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:29,574 INFO L93 Difference]: Finished difference Result 6138 states and 16176 transitions. [2021-06-01 16:40:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:40:29,575 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:29,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:29,579 INFO L225 Difference]: With dead ends: 6138 [2021-06-01 16:40:29,579 INFO L226 Difference]: Without dead ends: 5901 [2021-06-01 16:40:29,580 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2178.1ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:40:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2021-06-01 16:40:29,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5475. [2021-06-01 16:40:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.664048227986847) internal successors, (14583), 5474 states have internal predecessors, (14583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14583 transitions. [2021-06-01 16:40:29,632 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14583 transitions. Word has length 119 [2021-06-01 16:40:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:29,632 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14583 transitions. [2021-06-01 16:40:29,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14583 transitions. [2021-06-01 16:40:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:29,636 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:29,636 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:29,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-01 16:40:29,637 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:29,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:29,637 INFO L82 PathProgramCache]: Analyzing trace with hash 899910573, now seen corresponding path program 24 times [2021-06-01 16:40:29,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:29,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657923525] [2021-06-01 16:40:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:30,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:30,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657923525] [2021-06-01 16:40:30,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657923525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:30,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:30,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:30,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440159041] [2021-06-01 16:40:30,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:30,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:30,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:30,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:30,266 INFO L87 Difference]: Start difference. First operand 5475 states and 14583 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:32,615 INFO L93 Difference]: Finished difference Result 6818 states and 17919 transitions. [2021-06-01 16:40:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:40:32,616 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:32,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:32,621 INFO L225 Difference]: With dead ends: 6818 [2021-06-01 16:40:32,621 INFO L226 Difference]: Without dead ends: 6609 [2021-06-01 16:40:32,622 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2069.3ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:40:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6609 states. [2021-06-01 16:40:32,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6609 to 5931. [2021-06-01 16:40:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6568296795952784) internal successors, (15755), 5930 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:32,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15755 transitions. [2021-06-01 16:40:32,685 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15755 transitions. Word has length 119 [2021-06-01 16:40:32,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:32,685 INFO L482 AbstractCegarLoop]: Abstraction has 5931 states and 15755 transitions. [2021-06-01 16:40:32,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15755 transitions. [2021-06-01 16:40:32,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:32,690 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:32,690 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:32,690 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-01 16:40:32,690 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:32,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1903757771, now seen corresponding path program 25 times [2021-06-01 16:40:32,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:32,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374438141] [2021-06-01 16:40:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:33,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:33,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374438141] [2021-06-01 16:40:33,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374438141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:33,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:33,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:40:33,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13945932] [2021-06-01 16:40:33,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:40:33,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:33,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:40:33,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:40:33,334 INFO L87 Difference]: Start difference. First operand 5931 states and 15755 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:35,979 INFO L93 Difference]: Finished difference Result 7165 states and 18737 transitions. [2021-06-01 16:40:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:40:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:35,986 INFO L225 Difference]: With dead ends: 7165 [2021-06-01 16:40:35,986 INFO L226 Difference]: Without dead ends: 6689 [2021-06-01 16:40:35,986 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2206.1ms TimeCoverageRelationStatistics Valid=544, Invalid=2648, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:40:35,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2021-06-01 16:40:36,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6003. [2021-06-01 16:40:36,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 2.644951682772409) internal successors, (15875), 6002 states have internal predecessors, (15875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 15875 transitions. [2021-06-01 16:40:36,050 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 15875 transitions. Word has length 119 [2021-06-01 16:40:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:36,050 INFO L482 AbstractCegarLoop]: Abstraction has 6003 states and 15875 transitions. [2021-06-01 16:40:36,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 15875 transitions. [2021-06-01 16:40:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:36,054 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:36,055 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:36,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-01 16:40:36,055 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:36,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1182784161, now seen corresponding path program 26 times [2021-06-01 16:40:36,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:36,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301009009] [2021-06-01 16:40:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:36,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:36,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301009009] [2021-06-01 16:40:36,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301009009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:36,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:36,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:40:36,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347915829] [2021-06-01 16:40:36,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:40:36,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:36,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:40:36,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:40:36,705 INFO L87 Difference]: Start difference. First operand 6003 states and 15875 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:39,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:39,417 INFO L93 Difference]: Finished difference Result 6822 states and 17814 transitions. [2021-06-01 16:40:39,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:40:39,417 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:39,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:39,422 INFO L225 Difference]: With dead ends: 6822 [2021-06-01 16:40:39,422 INFO L226 Difference]: Without dead ends: 6281 [2021-06-01 16:40:39,422 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 2277.3ms TimeCoverageRelationStatistics Valid=539, Invalid=2883, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:40:39,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-06-01 16:40:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5595. [2021-06-01 16:40:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5594 states have (on average 2.645513049696103) internal successors, (14799), 5594 states have internal predecessors, (14799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 14799 transitions. [2021-06-01 16:40:39,480 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 14799 transitions. Word has length 119 [2021-06-01 16:40:39,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:39,480 INFO L482 AbstractCegarLoop]: Abstraction has 5595 states and 14799 transitions. [2021-06-01 16:40:39,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 14799 transitions. [2021-06-01 16:40:39,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:39,484 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:39,484 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:39,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-01 16:40:39,484 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:39,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:39,484 INFO L82 PathProgramCache]: Analyzing trace with hash -525852677, now seen corresponding path program 27 times [2021-06-01 16:40:39,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:39,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612746713] [2021-06-01 16:40:39,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:40,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:40,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:40,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612746713] [2021-06-01 16:40:40,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612746713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:40,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:40,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:40,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163225738] [2021-06-01 16:40:40,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:40,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:40,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:40,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:40,110 INFO L87 Difference]: Start difference. First operand 5595 states and 14799 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:42,531 INFO L93 Difference]: Finished difference Result 6345 states and 16601 transitions. [2021-06-01 16:40:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:40:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:42,537 INFO L225 Difference]: With dead ends: 6345 [2021-06-01 16:40:42,537 INFO L226 Difference]: Without dead ends: 5991 [2021-06-01 16:40:42,537 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2069.2ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:40:42,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-06-01 16:40:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5475. [2021-06-01 16:40:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6596638655462184) internal successors, (14559), 5474 states have internal predecessors, (14559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14559 transitions. [2021-06-01 16:40:42,590 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14559 transitions. Word has length 119 [2021-06-01 16:40:42,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:42,590 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14559 transitions. [2021-06-01 16:40:42,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:42,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14559 transitions. [2021-06-01 16:40:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:42,593 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:42,594 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:42,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-01 16:40:42,594 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:42,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1153180305, now seen corresponding path program 28 times [2021-06-01 16:40:42,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:42,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889008697] [2021-06-01 16:40:42,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:43,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:43,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889008697] [2021-06-01 16:40:43,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889008697] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:43,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:43,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:43,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826909026] [2021-06-01 16:40:43,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:43,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:43,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:43,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:43,245 INFO L87 Difference]: Start difference. First operand 5475 states and 14559 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:45,689 INFO L93 Difference]: Finished difference Result 6126 states and 16130 transitions. [2021-06-01 16:40:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:40:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:45,694 INFO L225 Difference]: With dead ends: 6126 [2021-06-01 16:40:45,694 INFO L226 Difference]: Without dead ends: 5913 [2021-06-01 16:40:45,694 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2171.7ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:40:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2021-06-01 16:40:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5479. [2021-06-01 16:40:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5478 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14565 transitions. [2021-06-01 16:40:45,750 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14565 transitions. Word has length 119 [2021-06-01 16:40:45,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:45,750 INFO L482 AbstractCegarLoop]: Abstraction has 5479 states and 14565 transitions. [2021-06-01 16:40:45,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14565 transitions. [2021-06-01 16:40:45,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:45,754 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:45,754 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:45,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-01 16:40:45,754 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:45,754 INFO L82 PathProgramCache]: Analyzing trace with hash -990711187, now seen corresponding path program 29 times [2021-06-01 16:40:45,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:45,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589795816] [2021-06-01 16:40:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:46,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:46,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589795816] [2021-06-01 16:40:46,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589795816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:46,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:46,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:40:46,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878718121] [2021-06-01 16:40:46,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:40:46,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:46,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:40:46,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:40:46,521 INFO L87 Difference]: Start difference. First operand 5479 states and 14565 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:49,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:49,179 INFO L93 Difference]: Finished difference Result 6143 states and 16171 transitions. [2021-06-01 16:40:49,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:40:49,179 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:49,184 INFO L225 Difference]: With dead ends: 6143 [2021-06-01 16:40:49,184 INFO L226 Difference]: Without dead ends: 5881 [2021-06-01 16:40:49,185 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 2399.4ms TimeCoverageRelationStatistics Valid=580, Invalid=3080, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:40:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2021-06-01 16:40:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5451. [2021-06-01 16:40:49,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6625688073394493) internal successors, (14511), 5450 states have internal predecessors, (14511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:49,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14511 transitions. [2021-06-01 16:40:49,240 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14511 transitions. Word has length 119 [2021-06-01 16:40:49,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:49,240 INFO L482 AbstractCegarLoop]: Abstraction has 5451 states and 14511 transitions. [2021-06-01 16:40:49,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:49,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14511 transitions. [2021-06-01 16:40:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:49,244 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:49,244 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:49,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-01 16:40:49,244 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:49,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:49,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1230990515, now seen corresponding path program 30 times [2021-06-01 16:40:49,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:49,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059615257] [2021-06-01 16:40:49,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:49,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:49,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059615257] [2021-06-01 16:40:49,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059615257] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:49,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:49,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:40:49,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082013705] [2021-06-01 16:40:49,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:40:49,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:49,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:40:49,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:40:49,929 INFO L87 Difference]: Start difference. First operand 5451 states and 14511 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:52,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:52,475 INFO L93 Difference]: Finished difference Result 7338 states and 19245 transitions. [2021-06-01 16:40:52,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:40:52,475 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:52,480 INFO L225 Difference]: With dead ends: 7338 [2021-06-01 16:40:52,480 INFO L226 Difference]: Without dead ends: 7129 [2021-06-01 16:40:52,481 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 2210.2ms TimeCoverageRelationStatistics Valid=491, Invalid=2479, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:40:52,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-06-01 16:40:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 5631. [2021-06-01 16:40:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5631 states, 5630 states have (on average 2.657726465364121) internal successors, (14963), 5630 states have internal predecessors, (14963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 14963 transitions. [2021-06-01 16:40:52,544 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 14963 transitions. Word has length 119 [2021-06-01 16:40:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:52,544 INFO L482 AbstractCegarLoop]: Abstraction has 5631 states and 14963 transitions. [2021-06-01 16:40:52,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 14963 transitions. [2021-06-01 16:40:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:52,548 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:52,548 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:52,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-01 16:40:52,548 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:52,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2060129583, now seen corresponding path program 31 times [2021-06-01 16:40:52,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:52,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984289152] [2021-06-01 16:40:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:53,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:53,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984289152] [2021-06-01 16:40:53,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984289152] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:53,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:53,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:40:53,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250725765] [2021-06-01 16:40:53,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:40:53,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:53,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:40:53,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:40:53,166 INFO L87 Difference]: Start difference. First operand 5631 states and 14963 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:55,848 INFO L93 Difference]: Finished difference Result 7685 states and 20063 transitions. [2021-06-01 16:40:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:40:55,848 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:55,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:55,854 INFO L225 Difference]: With dead ends: 7685 [2021-06-01 16:40:55,854 INFO L226 Difference]: Without dead ends: 7209 [2021-06-01 16:40:55,854 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2267.5ms TimeCoverageRelationStatistics Valid=540, Invalid=2766, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:40:55,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-01 16:40:55,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5703. [2021-06-01 16:40:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5702 states have (on average 2.6452122062434236) internal successors, (15083), 5702 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 15083 transitions. [2021-06-01 16:40:55,915 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 15083 transitions. Word has length 119 [2021-06-01 16:40:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:55,915 INFO L482 AbstractCegarLoop]: Abstraction has 5703 states and 15083 transitions. [2021-06-01 16:40:55,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 15083 transitions. [2021-06-01 16:40:55,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:55,919 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:55,919 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:55,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-01 16:40:55,919 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:55,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:55,919 INFO L82 PathProgramCache]: Analyzing trace with hash -851704219, now seen corresponding path program 32 times [2021-06-01 16:40:55,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:55,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184982953] [2021-06-01 16:40:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:40:56,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:40:56,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:40:56,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184982953] [2021-06-01 16:40:56,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184982953] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:40:56,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:40:56,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-01 16:40:56,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611033646] [2021-06-01 16:40:56,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-01 16:40:56,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:40:56,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-01 16:40:56,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:40:56,550 INFO L87 Difference]: Start difference. First operand 5703 states and 15083 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:40:59,252 INFO L93 Difference]: Finished difference Result 7342 states and 19140 transitions. [2021-06-01 16:40:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:40:59,253 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:40:59,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:40:59,259 INFO L225 Difference]: With dead ends: 7342 [2021-06-01 16:40:59,259 INFO L226 Difference]: Without dead ends: 6801 [2021-06-01 16:40:59,259 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2380.3ms TimeCoverageRelationStatistics Valid=544, Invalid=2878, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:40:59,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-06-01 16:40:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 5295. [2021-06-01 16:40:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.645825462788062) internal successors, (14007), 5294 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14007 transitions. [2021-06-01 16:40:59,317 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14007 transitions. Word has length 119 [2021-06-01 16:40:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:40:59,317 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 14007 transitions. [2021-06-01 16:40:59,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:40:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14007 transitions. [2021-06-01 16:40:59,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:40:59,321 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:40:59,321 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:40:59,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-01 16:40:59,321 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:40:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:40:59,322 INFO L82 PathProgramCache]: Analyzing trace with hash -194772735, now seen corresponding path program 33 times [2021-06-01 16:40:59,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:40:59,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324285485] [2021-06-01 16:40:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:40:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:00,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:00,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324285485] [2021-06-01 16:41:00,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324285485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:00,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:00,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:00,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533588286] [2021-06-01 16:41:00,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:00,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:00,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:00,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:00,034 INFO L87 Difference]: Start difference. First operand 5295 states and 14007 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:02,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:02,617 INFO L93 Difference]: Finished difference Result 6938 states and 18089 transitions. [2021-06-01 16:41:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:41:02,618 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:02,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:02,624 INFO L225 Difference]: With dead ends: 6938 [2021-06-01 16:41:02,624 INFO L226 Difference]: Without dead ends: 6584 [2021-06-01 16:41:02,624 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2261.1ms TimeCoverageRelationStatistics Valid=509, Invalid=2571, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:41:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6584 states. [2021-06-01 16:41:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6584 to 5175. [2021-06-01 16:41:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 2.642249710088906) internal successors, (13671), 5174 states have internal predecessors, (13671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 13671 transitions. [2021-06-01 16:41:02,684 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 13671 transitions. Word has length 119 [2021-06-01 16:41:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:02,684 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 13671 transitions. [2021-06-01 16:41:02,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 13671 transitions. [2021-06-01 16:41:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:02,688 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:02,688 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:02,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-01 16:41:02,688 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:02,688 INFO L82 PathProgramCache]: Analyzing trace with hash -761617071, now seen corresponding path program 34 times [2021-06-01 16:41:02,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:02,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676210403] [2021-06-01 16:41:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:03,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:03,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676210403] [2021-06-01 16:41:03,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676210403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:03,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:03,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:41:03,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542134360] [2021-06-01 16:41:03,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:41:03,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:03,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:41:03,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:41:03,388 INFO L87 Difference]: Start difference. First operand 5175 states and 13671 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:06,053 INFO L93 Difference]: Finished difference Result 7067 states and 18258 transitions. [2021-06-01 16:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:41:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:06,058 INFO L225 Difference]: With dead ends: 7067 [2021-06-01 16:41:06,058 INFO L226 Difference]: Without dead ends: 6353 [2021-06-01 16:41:06,058 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2351.7ms TimeCoverageRelationStatistics Valid=540, Invalid=2766, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:41:06,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2021-06-01 16:41:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 4770. [2021-06-01 16:41:06,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4770 states, 4769 states have (on average 2.6464667645208637) internal successors, (12621), 4769 states have internal predecessors, (12621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 12621 transitions. [2021-06-01 16:41:06,107 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 12621 transitions. Word has length 119 [2021-06-01 16:41:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:06,107 INFO L482 AbstractCegarLoop]: Abstraction has 4770 states and 12621 transitions. [2021-06-01 16:41:06,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 12621 transitions. [2021-06-01 16:41:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:06,110 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:06,110 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:06,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-01 16:41:06,110 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:06,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:06,111 INFO L82 PathProgramCache]: Analyzing trace with hash 760875073, now seen corresponding path program 35 times [2021-06-01 16:41:06,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:06,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215425461] [2021-06-01 16:41:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:06,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:06,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215425461] [2021-06-01 16:41:06,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215425461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:06,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:06,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 16:41:06,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385611245] [2021-06-01 16:41:06,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 16:41:06,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:06,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 16:41:06,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-06-01 16:41:06,711 INFO L87 Difference]: Start difference. First operand 4770 states and 12621 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:08,945 INFO L93 Difference]: Finished difference Result 5523 states and 14426 transitions. [2021-06-01 16:41:08,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:41:08,946 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:08,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:08,949 INFO L225 Difference]: With dead ends: 5523 [2021-06-01 16:41:08,949 INFO L226 Difference]: Without dead ends: 5310 [2021-06-01 16:41:08,950 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 2084.6ms TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:41:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2021-06-01 16:41:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 4786. [2021-06-01 16:41:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4785 states have (on average 2.645141065830721) internal successors, (12657), 4785 states have internal predecessors, (12657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 12657 transitions. [2021-06-01 16:41:08,997 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 12657 transitions. Word has length 119 [2021-06-01 16:41:08,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:08,997 INFO L482 AbstractCegarLoop]: Abstraction has 4786 states and 12657 transitions. [2021-06-01 16:41:08,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:08,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 12657 transitions. [2021-06-01 16:41:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:09,000 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:09,001 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:09,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-01 16:41:09,001 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:09,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1383016419, now seen corresponding path program 36 times [2021-06-01 16:41:09,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:09,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855013806] [2021-06-01 16:41:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:09,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:09,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855013806] [2021-06-01 16:41:09,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855013806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:09,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:09,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:41:09,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015847895] [2021-06-01 16:41:09,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:41:09,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:09,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:41:09,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:41:09,656 INFO L87 Difference]: Start difference. First operand 4786 states and 12657 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:11,996 INFO L93 Difference]: Finished difference Result 5544 states and 14473 transitions. [2021-06-01 16:41:11,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:41:11,997 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:11,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:12,001 INFO L225 Difference]: With dead ends: 5544 [2021-06-01 16:41:12,001 INFO L226 Difference]: Without dead ends: 5306 [2021-06-01 16:41:12,001 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2095.1ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:41:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2021-06-01 16:41:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 4782. [2021-06-01 16:41:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4781 states have (on average 2.645262497385484) internal successors, (12647), 4781 states have internal predecessors, (12647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:12,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12647 transitions. [2021-06-01 16:41:12,048 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12647 transitions. Word has length 119 [2021-06-01 16:41:12,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:12,048 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12647 transitions. [2021-06-01 16:41:12,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12647 transitions. [2021-06-01 16:41:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:12,051 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:12,051 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:12,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-01 16:41:12,051 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:12,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:12,052 INFO L82 PathProgramCache]: Analyzing trace with hash 704600065, now seen corresponding path program 37 times [2021-06-01 16:41:12,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:12,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542910971] [2021-06-01 16:41:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:12,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:12,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542910971] [2021-06-01 16:41:12,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542910971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:12,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:12,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:41:12,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626543251] [2021-06-01 16:41:12,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:41:12,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:12,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:41:12,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:41:12,919 INFO L87 Difference]: Start difference. First operand 4782 states and 12647 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:15,991 INFO L93 Difference]: Finished difference Result 5863 states and 15134 transitions. [2021-06-01 16:41:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-01 16:41:15,991 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:15,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:15,996 INFO L225 Difference]: With dead ends: 5863 [2021-06-01 16:41:15,996 INFO L226 Difference]: Without dead ends: 5461 [2021-06-01 16:41:15,996 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 2820.7ms TimeCoverageRelationStatistics Valid=733, Invalid=3823, Unknown=0, NotChecked=0, Total=4556 [2021-06-01 16:41:16,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2021-06-01 16:41:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 4689. [2021-06-01 16:41:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.6473976109215016) internal successors, (12411), 4688 states have internal predecessors, (12411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12411 transitions. [2021-06-01 16:41:16,055 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12411 transitions. Word has length 119 [2021-06-01 16:41:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:16,055 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12411 transitions. [2021-06-01 16:41:16,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12411 transitions. [2021-06-01 16:41:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:16,058 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:16,058 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:16,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-01 16:41:16,058 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:16,059 INFO L82 PathProgramCache]: Analyzing trace with hash -150142703, now seen corresponding path program 38 times [2021-06-01 16:41:16,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:16,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666469199] [2021-06-01 16:41:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:16,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:16,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666469199] [2021-06-01 16:41:16,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666469199] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:16,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:16,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:41:16,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768702495] [2021-06-01 16:41:16,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:41:16,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:16,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:41:16,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:41:16,702 INFO L87 Difference]: Start difference. First operand 4689 states and 12411 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:19,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:19,249 INFO L93 Difference]: Finished difference Result 5411 states and 13961 transitions. [2021-06-01 16:41:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:41:19,250 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:19,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:19,253 INFO L225 Difference]: With dead ends: 5411 [2021-06-01 16:41:19,253 INFO L226 Difference]: Without dead ends: 5096 [2021-06-01 16:41:19,253 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2216.5ms TimeCoverageRelationStatistics Valid=593, Invalid=2713, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:41:19,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2021-06-01 16:41:19,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 4689. [2021-06-01 16:41:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.646117747440273) internal successors, (12405), 4688 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:19,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12405 transitions. [2021-06-01 16:41:19,298 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12405 transitions. Word has length 119 [2021-06-01 16:41:19,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:19,298 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12405 transitions. [2021-06-01 16:41:19,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12405 transitions. [2021-06-01 16:41:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:19,301 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:19,301 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:19,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-01 16:41:19,301 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:19,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:19,302 INFO L82 PathProgramCache]: Analyzing trace with hash 369218067, now seen corresponding path program 39 times [2021-06-01 16:41:19,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:19,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012904279] [2021-06-01 16:41:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:19,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:19,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012904279] [2021-06-01 16:41:19,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012904279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:19,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:19,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:41:19,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992033224] [2021-06-01 16:41:19,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:41:19,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:19,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:41:19,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:41:19,955 INFO L87 Difference]: Start difference. First operand 4689 states and 12405 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:21,176 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-01 16:41:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:22,562 INFO L93 Difference]: Finished difference Result 5447 states and 14018 transitions. [2021-06-01 16:41:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:41:22,562 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:22,566 INFO L225 Difference]: With dead ends: 5447 [2021-06-01 16:41:22,566 INFO L226 Difference]: Without dead ends: 5144 [2021-06-01 16:41:22,567 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2364.0ms TimeCoverageRelationStatistics Valid=620, Invalid=2802, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:41:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-06-01 16:41:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 4687. [2021-06-01 16:41:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 4686 states have (on average 2.6453265044814342) internal successors, (12396), 4686 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 12396 transitions. [2021-06-01 16:41:22,615 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 12396 transitions. Word has length 119 [2021-06-01 16:41:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:22,615 INFO L482 AbstractCegarLoop]: Abstraction has 4687 states and 12396 transitions. [2021-06-01 16:41:22,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 12396 transitions. [2021-06-01 16:41:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:22,618 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:22,618 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:22,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-01 16:41:22,618 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:22,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:22,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1945897425, now seen corresponding path program 40 times [2021-06-01 16:41:22,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:22,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084747252] [2021-06-01 16:41:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:23,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:23,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084747252] [2021-06-01 16:41:23,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084747252] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:23,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:23,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:41:23,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289335524] [2021-06-01 16:41:23,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:41:23,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:23,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:41:23,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:41:23,454 INFO L87 Difference]: Start difference. First operand 4687 states and 12396 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:26,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:26,636 INFO L93 Difference]: Finished difference Result 5360 states and 13812 transitions. [2021-06-01 16:41:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-01 16:41:26,636 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:26,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:26,640 INFO L225 Difference]: With dead ends: 5360 [2021-06-01 16:41:26,640 INFO L226 Difference]: Without dead ends: 5012 [2021-06-01 16:41:26,640 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 2886.1ms TimeCoverageRelationStatistics Valid=773, Invalid=3783, Unknown=0, NotChecked=0, Total=4556 [2021-06-01 16:41:26,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2021-06-01 16:41:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4631. [2021-06-01 16:41:26,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 2.647948164146868) internal successors, (12260), 4630 states have internal predecessors, (12260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 12260 transitions. [2021-06-01 16:41:26,685 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 12260 transitions. Word has length 119 [2021-06-01 16:41:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:26,685 INFO L482 AbstractCegarLoop]: Abstraction has 4631 states and 12260 transitions. [2021-06-01 16:41:26,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 12260 transitions. [2021-06-01 16:41:26,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:26,688 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:26,688 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:26,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-01 16:41:26,689 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:26,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1723443951, now seen corresponding path program 41 times [2021-06-01 16:41:26,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:26,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217617788] [2021-06-01 16:41:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:27,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:27,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217617788] [2021-06-01 16:41:27,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217617788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:27,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:27,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-01 16:41:27,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270394840] [2021-06-01 16:41:27,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-01 16:41:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-01 16:41:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:41:27,385 INFO L87 Difference]: Start difference. First operand 4631 states and 12260 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:29,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:29,733 INFO L93 Difference]: Finished difference Result 4998 states and 13025 transitions. [2021-06-01 16:41:29,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:41:29,733 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:29,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:29,736 INFO L225 Difference]: With dead ends: 4998 [2021-06-01 16:41:29,736 INFO L226 Difference]: Without dead ends: 4785 [2021-06-01 16:41:29,736 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2102.2ms TimeCoverageRelationStatistics Valid=493, Invalid=2369, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:41:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2021-06-01 16:41:29,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4637. [2021-06-01 16:41:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4636 states have (on average 2.64732528041415) internal successors, (12273), 4636 states have internal predecessors, (12273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 12273 transitions. [2021-06-01 16:41:29,781 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 12273 transitions. Word has length 119 [2021-06-01 16:41:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:29,782 INFO L482 AbstractCegarLoop]: Abstraction has 4637 states and 12273 transitions. [2021-06-01 16:41:29,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 12273 transitions. [2021-06-01 16:41:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:29,785 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:29,785 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:29,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-01 16:41:29,785 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:29,785 INFO L82 PathProgramCache]: Analyzing trace with hash 256407853, now seen corresponding path program 42 times [2021-06-01 16:41:29,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:29,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999040185] [2021-06-01 16:41:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:30,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:30,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999040185] [2021-06-01 16:41:30,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999040185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:30,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:30,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:41:30,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421996769] [2021-06-01 16:41:30,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:41:30,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:30,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:41:30,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:41:30,595 INFO L87 Difference]: Start difference. First operand 4637 states and 12273 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:33,130 INFO L93 Difference]: Finished difference Result 5019 states and 13072 transitions. [2021-06-01 16:41:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:41:33,130 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:33,134 INFO L225 Difference]: With dead ends: 5019 [2021-06-01 16:41:33,134 INFO L226 Difference]: Without dead ends: 4781 [2021-06-01 16:41:33,134 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2466.9ms TimeCoverageRelationStatistics Valid=585, Invalid=3075, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:41:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2021-06-01 16:41:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4633. [2021-06-01 16:41:33,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 4632 states have (on average 2.6474525043177892) internal successors, (12263), 4632 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 12263 transitions. [2021-06-01 16:41:33,177 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 12263 transitions. Word has length 119 [2021-06-01 16:41:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:33,177 INFO L482 AbstractCegarLoop]: Abstraction has 4633 states and 12263 transitions. [2021-06-01 16:41:33,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 12263 transitions. [2021-06-01 16:41:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:33,181 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:33,181 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:33,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-01 16:41:33,181 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:33,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:33,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1053215949, now seen corresponding path program 43 times [2021-06-01 16:41:33,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:33,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795390119] [2021-06-01 16:41:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:34,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:34,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795390119] [2021-06-01 16:41:34,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795390119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:34,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:34,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-01 16:41:34,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508075377] [2021-06-01 16:41:34,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-01 16:41:34,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:34,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-01 16:41:34,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-01 16:41:34,066 INFO L87 Difference]: Start difference. First operand 4633 states and 12263 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:37,065 INFO L93 Difference]: Finished difference Result 5266 states and 13563 transitions. [2021-06-01 16:41:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-01 16:41:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:37,069 INFO L225 Difference]: With dead ends: 5266 [2021-06-01 16:41:37,069 INFO L226 Difference]: Without dead ends: 4666 [2021-06-01 16:41:37,070 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 2887.5ms TimeCoverageRelationStatistics Valid=741, Invalid=3815, Unknown=0, NotChecked=0, Total=4556 [2021-06-01 16:41:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2021-06-01 16:41:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4274. [2021-06-01 16:41:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4273 states have (on average 2.658319681722443) internal successors, (11359), 4273 states have internal predecessors, (11359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 11359 transitions. [2021-06-01 16:41:37,123 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 11359 transitions. Word has length 119 [2021-06-01 16:41:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:37,123 INFO L482 AbstractCegarLoop]: Abstraction has 4274 states and 11359 transitions. [2021-06-01 16:41:37,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 11359 transitions. [2021-06-01 16:41:37,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:37,126 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:37,126 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:37,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-01 16:41:37,126 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:37,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:37,126 INFO L82 PathProgramCache]: Analyzing trace with hash -944109087, now seen corresponding path program 44 times [2021-06-01 16:41:37,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:37,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298518319] [2021-06-01 16:41:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:37,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:37,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298518319] [2021-06-01 16:41:37,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298518319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:37,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:37,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:41:37,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909147616] [2021-06-01 16:41:37,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:41:37,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:37,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:41:37,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:41:37,381 INFO L87 Difference]: Start difference. First operand 4274 states and 11359 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:37,851 INFO L93 Difference]: Finished difference Result 5995 states and 15628 transitions. [2021-06-01 16:41:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:41:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:37,856 INFO L225 Difference]: With dead ends: 5995 [2021-06-01 16:41:37,856 INFO L226 Difference]: Without dead ends: 5771 [2021-06-01 16:41:37,856 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 412.4ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:41:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2021-06-01 16:41:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 4164. [2021-06-01 16:41:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4164 states, 4163 states have (on average 2.6509728561133796) internal successors, (11036), 4163 states have internal predecessors, (11036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 11036 transitions. [2021-06-01 16:41:37,901 INFO L78 Accepts]: Start accepts. Automaton has 4164 states and 11036 transitions. Word has length 119 [2021-06-01 16:41:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:37,901 INFO L482 AbstractCegarLoop]: Abstraction has 4164 states and 11036 transitions. [2021-06-01 16:41:37,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4164 states and 11036 transitions. [2021-06-01 16:41:37,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:37,904 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:37,904 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:37,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-01 16:41:37,904 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:37,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:37,905 INFO L82 PathProgramCache]: Analyzing trace with hash -673731233, now seen corresponding path program 45 times [2021-06-01 16:41:37,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:37,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068892936] [2021-06-01 16:41:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:38,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:38,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068892936] [2021-06-01 16:41:38,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068892936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:38,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:38,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:41:38,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758033998] [2021-06-01 16:41:38,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:41:38,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:38,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:41:38,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:41:38,146 INFO L87 Difference]: Start difference. First operand 4164 states and 11036 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:38,568 INFO L93 Difference]: Finished difference Result 4103 states and 10314 transitions. [2021-06-01 16:41:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:41:38,569 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:38,571 INFO L225 Difference]: With dead ends: 4103 [2021-06-01 16:41:38,571 INFO L226 Difference]: Without dead ends: 3991 [2021-06-01 16:41:38,572 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 384.5ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:41:38,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2021-06-01 16:41:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3382. [2021-06-01 16:41:38,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5732031943212066) internal successors, (8700), 3381 states have internal predecessors, (8700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:38,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8700 transitions. [2021-06-01 16:41:38,605 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8700 transitions. Word has length 119 [2021-06-01 16:41:38,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:38,605 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8700 transitions. [2021-06-01 16:41:38,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:38,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8700 transitions. [2021-06-01 16:41:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:38,607 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:38,607 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:38,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-01 16:41:38,608 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:38,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:38,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1815971037, now seen corresponding path program 46 times [2021-06-01 16:41:38,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:38,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804448039] [2021-06-01 16:41:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:39,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:39,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:39,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804448039] [2021-06-01 16:41:39,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804448039] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:39,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:39,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:39,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586788360] [2021-06-01 16:41:39,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:39,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:39,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:39,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:39,184 INFO L87 Difference]: Start difference. First operand 3382 states and 8700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:40,569 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-01 16:41:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:41,433 INFO L93 Difference]: Finished difference Result 3615 states and 9136 transitions. [2021-06-01 16:41:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:41:41,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:41,437 INFO L225 Difference]: With dead ends: 3615 [2021-06-01 16:41:41,437 INFO L226 Difference]: Without dead ends: 3386 [2021-06-01 16:41:41,437 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1961.0ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:41:41,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-06-01 16:41:41,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3382. [2021-06-01 16:41:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5708370304643595) internal successors, (8692), 3381 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8692 transitions. [2021-06-01 16:41:41,469 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8692 transitions. Word has length 119 [2021-06-01 16:41:41,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:41,469 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8692 transitions. [2021-06-01 16:41:41,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8692 transitions. [2021-06-01 16:41:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:41,471 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:41,472 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:41,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-01 16:41:41,472 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:41,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1820389177, now seen corresponding path program 47 times [2021-06-01 16:41:41,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:41,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99453259] [2021-06-01 16:41:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:42,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:42,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99453259] [2021-06-01 16:41:42,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99453259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:42,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:42,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:42,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562462622] [2021-06-01 16:41:42,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:42,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:42,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:42,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:42,084 INFO L87 Difference]: Start difference. First operand 3382 states and 8692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:44,432 INFO L93 Difference]: Finished difference Result 3823 states and 9688 transitions. [2021-06-01 16:41:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:41:44,432 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:44,435 INFO L225 Difference]: With dead ends: 3823 [2021-06-01 16:41:44,435 INFO L226 Difference]: Without dead ends: 3614 [2021-06-01 16:41:44,435 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2007.7ms TimeCoverageRelationStatistics Valid=447, Invalid=2309, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:41:44,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-06-01 16:41:44,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3526. [2021-06-01 16:41:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3525 states have (on average 2.566808510638298) internal successors, (9048), 3525 states have internal predecessors, (9048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 9048 transitions. [2021-06-01 16:41:44,468 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 9048 transitions. Word has length 119 [2021-06-01 16:41:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:44,468 INFO L482 AbstractCegarLoop]: Abstraction has 3526 states and 9048 transitions. [2021-06-01 16:41:44,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 9048 transitions. [2021-06-01 16:41:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:44,471 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:44,471 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:44,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-01 16:41:44,471 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:44,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1999871817, now seen corresponding path program 48 times [2021-06-01 16:41:44,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:44,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583980744] [2021-06-01 16:41:44,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:45,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:45,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:45,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583980744] [2021-06-01 16:41:45,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583980744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:45,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:45,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:45,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914757735] [2021-06-01 16:41:45,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:45,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:45,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:45,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:45,069 INFO L87 Difference]: Start difference. First operand 3526 states and 9048 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:47,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:47,598 INFO L93 Difference]: Finished difference Result 4065 states and 10202 transitions. [2021-06-01 16:41:47,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:41:47,598 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:47,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:47,600 INFO L225 Difference]: With dead ends: 4065 [2021-06-01 16:41:47,600 INFO L226 Difference]: Without dead ends: 3076 [2021-06-01 16:41:47,601 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2176.8ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:41:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2021-06-01 16:41:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 2974. [2021-06-01 16:41:47,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.572485704675412) internal successors, (7648), 2973 states have internal predecessors, (7648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7648 transitions. [2021-06-01 16:41:47,628 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7648 transitions. Word has length 119 [2021-06-01 16:41:47,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:47,628 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7648 transitions. [2021-06-01 16:41:47,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:47,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7648 transitions. [2021-06-01 16:41:47,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:47,630 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:47,630 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:47,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-01 16:41:47,630 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:47,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:47,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1555807155, now seen corresponding path program 49 times [2021-06-01 16:41:47,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:47,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055003395] [2021-06-01 16:41:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:48,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:48,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:48,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055003395] [2021-06-01 16:41:48,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055003395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:48,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:48,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:48,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658474403] [2021-06-01 16:41:48,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:48,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:48,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:48,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:48,212 INFO L87 Difference]: Start difference. First operand 2974 states and 7648 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:49,565 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-01 16:41:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:50,479 INFO L93 Difference]: Finished difference Result 3187 states and 8054 transitions. [2021-06-01 16:41:50,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:41:50,479 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:50,481 INFO L225 Difference]: With dead ends: 3187 [2021-06-01 16:41:50,481 INFO L226 Difference]: Without dead ends: 2854 [2021-06-01 16:41:50,482 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2023.3ms TimeCoverageRelationStatistics Valid=459, Invalid=2297, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:41:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2021-06-01 16:41:50,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2854. [2021-06-01 16:41:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2853 states have (on average 2.5993690851735014) internal successors, (7416), 2853 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 7416 transitions. [2021-06-01 16:41:50,508 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 7416 transitions. Word has length 119 [2021-06-01 16:41:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:50,508 INFO L482 AbstractCegarLoop]: Abstraction has 2854 states and 7416 transitions. [2021-06-01 16:41:50,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 7416 transitions. [2021-06-01 16:41:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:50,510 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:50,510 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:50,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-01 16:41:50,511 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1016585131, now seen corresponding path program 50 times [2021-06-01 16:41:50,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:50,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553762425] [2021-06-01 16:41:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:51,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:51,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553762425] [2021-06-01 16:41:51,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553762425] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:51,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:51,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:51,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071689765] [2021-06-01 16:41:51,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:51,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:51,131 INFO L87 Difference]: Start difference. First operand 2854 states and 7416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:52,464 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-01 16:41:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:53,269 INFO L93 Difference]: Finished difference Result 3087 states and 7852 transitions. [2021-06-01 16:41:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:41:53,269 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:53,271 INFO L225 Difference]: With dead ends: 3087 [2021-06-01 16:41:53,272 INFO L226 Difference]: Without dead ends: 2830 [2021-06-01 16:41:53,272 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1936.9ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:41:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-06-01 16:41:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2021-06-01 16:41:53,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2829 states have (on average 2.6044538706256626) internal successors, (7368), 2829 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 7368 transitions. [2021-06-01 16:41:53,297 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 7368 transitions. Word has length 119 [2021-06-01 16:41:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:53,297 INFO L482 AbstractCegarLoop]: Abstraction has 2830 states and 7368 transitions. [2021-06-01 16:41:53,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 7368 transitions. [2021-06-01 16:41:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:53,299 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:53,299 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:53,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-01 16:41:53,299 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:53,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:53,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1170492923, now seen corresponding path program 51 times [2021-06-01 16:41:53,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:53,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646714479] [2021-06-01 16:41:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:53,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:53,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646714479] [2021-06-01 16:41:53,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646714479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:53,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:53,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:53,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687076803] [2021-06-01 16:41:53,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:53,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:53,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:53,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:53,866 INFO L87 Difference]: Start difference. First operand 2830 states and 7368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:55,995 INFO L93 Difference]: Finished difference Result 3023 states and 7747 transitions. [2021-06-01 16:41:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:41:55,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:55,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:55,997 INFO L225 Difference]: With dead ends: 3023 [2021-06-01 16:41:55,997 INFO L226 Difference]: Without dead ends: 2697 [2021-06-01 16:41:55,998 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1840.2ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:41:56,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-06-01 16:41:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2657. [2021-06-01 16:41:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.6438253012048194) internal successors, (7022), 2656 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 7022 transitions. [2021-06-01 16:41:56,022 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 7022 transitions. Word has length 119 [2021-06-01 16:41:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:56,022 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 7022 transitions. [2021-06-01 16:41:56,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 7022 transitions. [2021-06-01 16:41:56,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:56,024 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:56,024 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:56,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-01 16:41:56,025 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:56,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:56,025 INFO L82 PathProgramCache]: Analyzing trace with hash 611780271, now seen corresponding path program 52 times [2021-06-01 16:41:56,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:56,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463446415] [2021-06-01 16:41:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:56,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:56,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463446415] [2021-06-01 16:41:56,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463446415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:56,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:56,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:41:56,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582146995] [2021-06-01 16:41:56,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:41:56,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:56,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:41:56,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:41:56,212 INFO L87 Difference]: Start difference. First operand 2657 states and 7022 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:56,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:41:56,486 INFO L93 Difference]: Finished difference Result 5076 states and 13227 transitions. [2021-06-01 16:41:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:41:56,487 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:41:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:41:56,490 INFO L225 Difference]: With dead ends: 5076 [2021-06-01 16:41:56,490 INFO L226 Difference]: Without dead ends: 5076 [2021-06-01 16:41:56,490 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 263.4ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:41:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2021-06-01 16:41:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 2829. [2021-06-01 16:41:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 2.639321074964639) internal successors, (7464), 2828 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 7464 transitions. [2021-06-01 16:41:56,523 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 7464 transitions. Word has length 119 [2021-06-01 16:41:56,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:41:56,523 INFO L482 AbstractCegarLoop]: Abstraction has 2829 states and 7464 transitions. [2021-06-01 16:41:56,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 7464 transitions. [2021-06-01 16:41:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:41:56,525 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:41:56,525 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:41:56,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-01 16:41:56,525 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:41:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:41:56,526 INFO L82 PathProgramCache]: Analyzing trace with hash 2050456337, now seen corresponding path program 53 times [2021-06-01 16:41:56,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:41:56,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034757122] [2021-06-01 16:41:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:41:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:41:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:41:57,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:41:57,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034757122] [2021-06-01 16:41:57,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034757122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:41:57,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:41:57,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:41:57,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095735208] [2021-06-01 16:41:57,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:41:57,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:41:57,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:41:57,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:41:57,146 INFO L87 Difference]: Start difference. First operand 2829 states and 7464 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:41:58,299 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-06-01 16:42:00,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:00,190 INFO L93 Difference]: Finished difference Result 4703 states and 12288 transitions. [2021-06-01 16:42:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:42:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:00,194 INFO L225 Difference]: With dead ends: 4703 [2021-06-01 16:42:00,194 INFO L226 Difference]: Without dead ends: 4508 [2021-06-01 16:42:00,195 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2532.3ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:42:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2021-06-01 16:42:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3345. [2021-06-01 16:42:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 3344 states have (on average 2.6632775119617227) internal successors, (8906), 3344 states have internal predecessors, (8906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 8906 transitions. [2021-06-01 16:42:00,231 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 8906 transitions. Word has length 119 [2021-06-01 16:42:00,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:00,231 INFO L482 AbstractCegarLoop]: Abstraction has 3345 states and 8906 transitions. [2021-06-01 16:42:00,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:00,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 8906 transitions. [2021-06-01 16:42:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:00,234 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:00,234 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:00,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-01 16:42:00,234 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:00,234 INFO L82 PathProgramCache]: Analyzing trace with hash 812466701, now seen corresponding path program 2 times [2021-06-01 16:42:00,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:00,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564644443] [2021-06-01 16:42:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:00,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:00,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564644443] [2021-06-01 16:42:00,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564644443] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:00,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:00,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-01 16:42:00,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875340289] [2021-06-01 16:42:00,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-01 16:42:00,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:00,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-01 16:42:00,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-06-01 16:42:00,694 INFO L87 Difference]: Start difference. First operand 3345 states and 8906 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:02,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:02,375 INFO L93 Difference]: Finished difference Result 5894 states and 15645 transitions. [2021-06-01 16:42:02,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:42:02,376 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:02,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:02,381 INFO L225 Difference]: With dead ends: 5894 [2021-06-01 16:42:02,381 INFO L226 Difference]: Without dead ends: 5829 [2021-06-01 16:42:02,382 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1281.5ms TimeCoverageRelationStatistics Valid=576, Invalid=1974, Unknown=0, NotChecked=0, Total=2550 [2021-06-01 16:42:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5829 states. [2021-06-01 16:42:02,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5829 to 5736. [2021-06-01 16:42:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 2.680034873583261) internal successors, (15370), 5735 states have internal predecessors, (15370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15370 transitions. [2021-06-01 16:42:02,436 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15370 transitions. Word has length 119 [2021-06-01 16:42:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:02,436 INFO L482 AbstractCegarLoop]: Abstraction has 5736 states and 15370 transitions. [2021-06-01 16:42:02,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15370 transitions. [2021-06-01 16:42:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:02,440 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:02,440 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:02,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-01 16:42:02,440 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:02,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1240663761, now seen corresponding path program 54 times [2021-06-01 16:42:02,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:02,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637778126] [2021-06-01 16:42:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:03,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:03,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637778126] [2021-06-01 16:42:03,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637778126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:03,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:03,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:03,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144453300] [2021-06-01 16:42:03,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:03,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:03,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:03,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:03,056 INFO L87 Difference]: Start difference. First operand 5736 states and 15370 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:04,194 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-01 16:42:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:05,964 INFO L93 Difference]: Finished difference Result 8528 states and 22532 transitions. [2021-06-01 16:42:05,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:42:05,964 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:05,969 INFO L225 Difference]: With dead ends: 8528 [2021-06-01 16:42:05,969 INFO L226 Difference]: Without dead ends: 7762 [2021-06-01 16:42:05,970 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2479.3ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:42:05,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2021-06-01 16:42:06,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 5856. [2021-06-01 16:42:06,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5856 states, 5855 states have (on average 2.66199829205807) internal successors, (15586), 5855 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5856 states to 5856 states and 15586 transitions. [2021-06-01 16:42:06,029 INFO L78 Accepts]: Start accepts. Automaton has 5856 states and 15586 transitions. Word has length 119 [2021-06-01 16:42:06,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:06,029 INFO L482 AbstractCegarLoop]: Abstraction has 5856 states and 15586 transitions. [2021-06-01 16:42:06,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5856 states and 15586 transitions. [2021-06-01 16:42:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:06,033 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:06,033 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:06,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-01 16:42:06,033 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:06,034 INFO L82 PathProgramCache]: Analyzing trace with hash -32238397, now seen corresponding path program 55 times [2021-06-01 16:42:06,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:06,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173728152] [2021-06-01 16:42:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:06,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:06,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:06,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173728152] [2021-06-01 16:42:06,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173728152] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:06,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:06,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:06,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369857430] [2021-06-01 16:42:06,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:06,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:06,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:06,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:06,660 INFO L87 Difference]: Start difference. First operand 5856 states and 15586 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:07,785 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-01 16:42:09,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:09,744 INFO L93 Difference]: Finished difference Result 7953 states and 20909 transitions. [2021-06-01 16:42:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-01 16:42:09,744 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:09,751 INFO L225 Difference]: With dead ends: 7953 [2021-06-01 16:42:09,751 INFO L226 Difference]: Without dead ends: 7114 [2021-06-01 16:42:09,752 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2713.4ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-06-01 16:42:09,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2021-06-01 16:42:09,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 5208. [2021-06-01 16:42:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6606491261763012) internal successors, (13854), 5207 states have internal predecessors, (13854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13854 transitions. [2021-06-01 16:42:09,813 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13854 transitions. Word has length 119 [2021-06-01 16:42:09,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:09,813 INFO L482 AbstractCegarLoop]: Abstraction has 5208 states and 13854 transitions. [2021-06-01 16:42:09,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:09,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13854 transitions. [2021-06-01 16:42:09,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:09,817 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:09,817 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:09,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-01 16:42:09,817 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash -637340001, now seen corresponding path program 56 times [2021-06-01 16:42:09,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:09,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981703464] [2021-06-01 16:42:09,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:10,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:10,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981703464] [2021-06-01 16:42:10,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981703464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:10,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:10,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:10,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977034190] [2021-06-01 16:42:10,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:10,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:10,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:10,424 INFO L87 Difference]: Start difference. First operand 5208 states and 13854 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:11,555 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-06-01 16:42:11,930 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:42:13,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:13,354 INFO L93 Difference]: Finished difference Result 6608 states and 17330 transitions. [2021-06-01 16:42:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:42:13,354 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:13,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:13,360 INFO L225 Difference]: With dead ends: 6608 [2021-06-01 16:42:13,360 INFO L226 Difference]: Without dead ends: 6281 [2021-06-01 16:42:13,361 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2542.7ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:42:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-06-01 16:42:13,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5200. [2021-06-01 16:42:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5199 states have (on average 2.660126947489902) internal successors, (13830), 5199 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 13830 transitions. [2021-06-01 16:42:13,433 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 13830 transitions. Word has length 119 [2021-06-01 16:42:13,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:13,433 INFO L482 AbstractCegarLoop]: Abstraction has 5200 states and 13830 transitions. [2021-06-01 16:42:13,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 13830 transitions. [2021-06-01 16:42:13,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:13,437 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:13,437 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:13,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-01 16:42:13,437 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:13,438 INFO L82 PathProgramCache]: Analyzing trace with hash 66975313, now seen corresponding path program 57 times [2021-06-01 16:42:13,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:13,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644152156] [2021-06-01 16:42:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:14,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:14,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644152156] [2021-06-01 16:42:14,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644152156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:14,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:14,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:14,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492190966] [2021-06-01 16:42:14,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:14,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:14,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:14,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:14,033 INFO L87 Difference]: Start difference. First operand 5200 states and 13830 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:15,276 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-01 16:42:15,451 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:42:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:16,832 INFO L93 Difference]: Finished difference Result 6354 states and 16612 transitions. [2021-06-01 16:42:16,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:42:16,832 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:16,836 INFO L225 Difference]: With dead ends: 6354 [2021-06-01 16:42:16,836 INFO L226 Difference]: Without dead ends: 5967 [2021-06-01 16:42:16,837 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2403.9ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:42:16,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-06-01 16:42:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 5192. [2021-06-01 16:42:16,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6580620304372955) internal successors, (13798), 5191 states have internal predecessors, (13798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13798 transitions. [2021-06-01 16:42:16,887 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13798 transitions. Word has length 119 [2021-06-01 16:42:16,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:16,888 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13798 transitions. [2021-06-01 16:42:16,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13798 transitions. [2021-06-01 16:42:16,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:16,891 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:16,891 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:16,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-01 16:42:16,891 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:16,892 INFO L82 PathProgramCache]: Analyzing trace with hash -365925165, now seen corresponding path program 58 times [2021-06-01 16:42:16,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:16,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273279924] [2021-06-01 16:42:16,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:17,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:17,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273279924] [2021-06-01 16:42:17,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273279924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:17,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:17,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:17,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662255327] [2021-06-01 16:42:17,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:17,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:17,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:17,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:17,487 INFO L87 Difference]: Start difference. First operand 5192 states and 13798 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:18,507 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-06-01 16:42:20,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:20,155 INFO L93 Difference]: Finished difference Result 6651 states and 17539 transitions. [2021-06-01 16:42:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:42:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:20,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:20,161 INFO L225 Difference]: With dead ends: 6651 [2021-06-01 16:42:20,162 INFO L226 Difference]: Without dead ends: 6442 [2021-06-01 16:42:20,162 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2194.3ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:42:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2021-06-01 16:42:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5528. [2021-06-01 16:42:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5528 states, 5527 states have (on average 2.6477293287497736) internal successors, (14634), 5527 states have internal predecessors, (14634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 14634 transitions. [2021-06-01 16:42:20,219 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 14634 transitions. Word has length 119 [2021-06-01 16:42:20,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:20,219 INFO L482 AbstractCegarLoop]: Abstraction has 5528 states and 14634 transitions. [2021-06-01 16:42:20,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:20,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 14634 transitions. [2021-06-01 16:42:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:20,223 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:20,223 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:20,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-01 16:42:20,223 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:20,223 INFO L82 PathProgramCache]: Analyzing trace with hash 637922033, now seen corresponding path program 59 times [2021-06-01 16:42:20,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:20,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25645134] [2021-06-01 16:42:20,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:20,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:20,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25645134] [2021-06-01 16:42:20,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25645134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:20,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:20,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:20,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324231329] [2021-06-01 16:42:20,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:20,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:20,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:20,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:20,806 INFO L87 Difference]: Start difference. First operand 5528 states and 14634 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:21,953 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-01 16:42:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:23,373 INFO L93 Difference]: Finished difference Result 6998 states and 18357 transitions. [2021-06-01 16:42:23,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:42:23,374 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:23,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:23,380 INFO L225 Difference]: With dead ends: 6998 [2021-06-01 16:42:23,380 INFO L226 Difference]: Without dead ends: 6522 [2021-06-01 16:42:23,380 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2169.4ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:42:23,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-06-01 16:42:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5600. [2021-06-01 16:42:23,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 2.635113413109484) internal successors, (14754), 5599 states have internal predecessors, (14754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 14754 transitions. [2021-06-01 16:42:23,438 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 14754 transitions. Word has length 119 [2021-06-01 16:42:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:23,438 INFO L482 AbstractCegarLoop]: Abstraction has 5600 states and 14754 transitions. [2021-06-01 16:42:23,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:23,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 14754 transitions. [2021-06-01 16:42:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:23,442 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:23,442 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:23,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-01 16:42:23,442 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:23,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1846347397, now seen corresponding path program 60 times [2021-06-01 16:42:23,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:23,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670078634] [2021-06-01 16:42:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:24,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:24,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670078634] [2021-06-01 16:42:24,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670078634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:24,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:24,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:24,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003310947] [2021-06-01 16:42:24,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:24,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:24,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:24,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:24,088 INFO L87 Difference]: Start difference. First operand 5600 states and 14754 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:26,772 INFO L93 Difference]: Finished difference Result 6655 states and 17434 transitions. [2021-06-01 16:42:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:42:26,773 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:26,777 INFO L225 Difference]: With dead ends: 6655 [2021-06-01 16:42:26,777 INFO L226 Difference]: Without dead ends: 6114 [2021-06-01 16:42:26,777 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2281.0ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:42:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2021-06-01 16:42:26,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 5192. [2021-06-01 16:42:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6534386438065884) internal successors, (13774), 5191 states have internal predecessors, (13774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13774 transitions. [2021-06-01 16:42:26,826 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13774 transitions. Word has length 119 [2021-06-01 16:42:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:26,826 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13774 transitions. [2021-06-01 16:42:26,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13774 transitions. [2021-06-01 16:42:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:26,830 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:26,830 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:26,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-01 16:42:26,830 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:26,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:26,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1241245793, now seen corresponding path program 61 times [2021-06-01 16:42:26,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:26,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120441134] [2021-06-01 16:42:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:27,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:27,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120441134] [2021-06-01 16:42:27,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120441134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:27,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:27,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:27,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054712642] [2021-06-01 16:42:27,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:27,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:27,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:27,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:27,414 INFO L87 Difference]: Start difference. First operand 5192 states and 13774 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:28,993 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:42:29,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:29,987 INFO L93 Difference]: Finished difference Result 6161 states and 16272 transitions. [2021-06-01 16:42:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:42:29,988 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:29,992 INFO L225 Difference]: With dead ends: 6161 [2021-06-01 16:42:29,992 INFO L226 Difference]: Without dead ends: 5924 [2021-06-01 16:42:29,993 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2223.2ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:42:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2021-06-01 16:42:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 5168. [2021-06-01 16:42:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6564737758854267) internal successors, (13726), 5167 states have internal predecessors, (13726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13726 transitions. [2021-06-01 16:42:30,043 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13726 transitions. Word has length 119 [2021-06-01 16:42:30,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:30,043 INFO L482 AbstractCegarLoop]: Abstraction has 5168 states and 13726 transitions. [2021-06-01 16:42:30,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13726 transitions. [2021-06-01 16:42:30,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:30,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:30,047 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:30,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-01 16:42:30,047 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:30,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:30,047 INFO L82 PathProgramCache]: Analyzing trace with hash -261011729, now seen corresponding path program 62 times [2021-06-01 16:42:30,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:30,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865652676] [2021-06-01 16:42:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:30,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:30,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865652676] [2021-06-01 16:42:30,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865652676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:30,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:30,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:30,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834900125] [2021-06-01 16:42:30,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:30,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:30,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:30,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:30,627 INFO L87 Difference]: Start difference. First operand 5168 states and 13726 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:33,195 INFO L93 Difference]: Finished difference Result 7746 states and 20382 transitions. [2021-06-01 16:42:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:42:33,195 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:33,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:33,202 INFO L225 Difference]: With dead ends: 7746 [2021-06-01 16:42:33,202 INFO L226 Difference]: Without dead ends: 7537 [2021-06-01 16:42:33,202 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2107.6ms TimeCoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:42:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2021-06-01 16:42:33,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 5492. [2021-06-01 16:42:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 2.6519759606629028) internal successors, (14562), 5491 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 14562 transitions. [2021-06-01 16:42:33,273 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 14562 transitions. Word has length 119 [2021-06-01 16:42:33,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:33,273 INFO L482 AbstractCegarLoop]: Abstraction has 5492 states and 14562 transitions. [2021-06-01 16:42:33,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 14562 transitions. [2021-06-01 16:42:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:33,277 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:33,277 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:33,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-01 16:42:33,277 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:33,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:33,277 INFO L82 PathProgramCache]: Analyzing trace with hash 742835469, now seen corresponding path program 63 times [2021-06-01 16:42:33,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:33,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763496630] [2021-06-01 16:42:33,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:33,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:33,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763496630] [2021-06-01 16:42:33,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763496630] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:33,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:33,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:33,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265402625] [2021-06-01 16:42:33,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:33,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:33,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:33,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:33,856 INFO L87 Difference]: Start difference. First operand 5492 states and 14562 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:36,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:36,360 INFO L93 Difference]: Finished difference Result 8093 states and 21200 transitions. [2021-06-01 16:42:36,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:42:36,360 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:36,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:36,367 INFO L225 Difference]: With dead ends: 8093 [2021-06-01 16:42:36,367 INFO L226 Difference]: Without dead ends: 7617 [2021-06-01 16:42:36,368 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2157.2ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:42:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2021-06-01 16:42:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 5564. [2021-06-01 16:42:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 2.63922344058961) internal successors, (14682), 5563 states have internal predecessors, (14682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 14682 transitions. [2021-06-01 16:42:36,430 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 14682 transitions. Word has length 119 [2021-06-01 16:42:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:36,430 INFO L482 AbstractCegarLoop]: Abstraction has 5564 states and 14682 transitions. [2021-06-01 16:42:36,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 14682 transitions. [2021-06-01 16:42:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:36,434 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:36,434 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:36,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-01 16:42:36,434 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:36,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:36,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1951260833, now seen corresponding path program 64 times [2021-06-01 16:42:36,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:36,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307173284] [2021-06-01 16:42:36,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:37,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:37,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307173284] [2021-06-01 16:42:37,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307173284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:37,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:37,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:37,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877230363] [2021-06-01 16:42:37,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:37,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:37,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:37,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:37,066 INFO L87 Difference]: Start difference. First operand 5564 states and 14682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:39,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:39,785 INFO L93 Difference]: Finished difference Result 7750 states and 20277 transitions. [2021-06-01 16:42:39,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:42:39,786 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:39,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:39,791 INFO L225 Difference]: With dead ends: 7750 [2021-06-01 16:42:39,791 INFO L226 Difference]: Without dead ends: 7209 [2021-06-01 16:42:39,792 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2303.7ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:42:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-01 16:42:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5156. [2021-06-01 16:42:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 2.639379243452958) internal successors, (13606), 5155 states have internal predecessors, (13606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 13606 transitions. [2021-06-01 16:42:39,846 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 13606 transitions. Word has length 119 [2021-06-01 16:42:39,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:39,846 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 13606 transitions. [2021-06-01 16:42:39,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 13606 transitions. [2021-06-01 16:42:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:39,850 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:39,850 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:39,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-01 16:42:39,850 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:39,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:39,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1686774979, now seen corresponding path program 65 times [2021-06-01 16:42:39,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:39,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835685587] [2021-06-01 16:42:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:40,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:40,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:40,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835685587] [2021-06-01 16:42:40,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835685587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:40,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:40,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:40,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629856397] [2021-06-01 16:42:40,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:40,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:40,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:40,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:40,434 INFO L87 Difference]: Start difference. First operand 5156 states and 13606 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:43,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:43,191 INFO L93 Difference]: Finished difference Result 7566 states and 19673 transitions. [2021-06-01 16:42:43,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:42:43,191 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:43,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:43,197 INFO L225 Difference]: With dead ends: 7566 [2021-06-01 16:42:43,197 INFO L226 Difference]: Without dead ends: 7212 [2021-06-01 16:42:43,197 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 2292.5ms TimeCoverageRelationStatistics Valid=516, Invalid=2790, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:42:43,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2021-06-01 16:42:43,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 5036. [2021-06-01 16:42:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5036 states, 5035 states have (on average 2.654617676266137) internal successors, (13366), 5035 states have internal predecessors, (13366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 13366 transitions. [2021-06-01 16:42:43,254 INFO L78 Accepts]: Start accepts. Automaton has 5036 states and 13366 transitions. Word has length 119 [2021-06-01 16:42:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:43,254 INFO L482 AbstractCegarLoop]: Abstraction has 5036 states and 13366 transitions. [2021-06-01 16:42:43,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5036 states and 13366 transitions. [2021-06-01 16:42:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:43,258 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:43,258 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:43,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-01 16:42:43,258 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:43,258 INFO L82 PathProgramCache]: Analyzing trace with hash -7741997, now seen corresponding path program 66 times [2021-06-01 16:42:43,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:43,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814697249] [2021-06-01 16:42:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:43,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:43,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814697249] [2021-06-01 16:42:43,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814697249] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:43,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:43,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:43,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699400842] [2021-06-01 16:42:43,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:43,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:43,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:43,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:43,865 INFO L87 Difference]: Start difference. First operand 5036 states and 13366 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:45,342 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:42:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:46,403 INFO L93 Difference]: Finished difference Result 6111 states and 16108 transitions. [2021-06-01 16:42:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:42:46,403 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:46,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:46,408 INFO L225 Difference]: With dead ends: 6111 [2021-06-01 16:42:46,408 INFO L226 Difference]: Without dead ends: 5898 [2021-06-01 16:42:46,409 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2186.4ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:42:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-06-01 16:42:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5040. [2021-06-01 16:42:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 5039 states have (on average 2.653701131176821) internal successors, (13372), 5039 states have internal predecessors, (13372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 13372 transitions. [2021-06-01 16:42:46,463 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 13372 transitions. Word has length 119 [2021-06-01 16:42:46,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:46,463 INFO L482 AbstractCegarLoop]: Abstraction has 5040 states and 13372 transitions. [2021-06-01 16:42:46,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 13372 transitions. [2021-06-01 16:42:46,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:46,466 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:46,467 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:46,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-01 16:42:46,467 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:46,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:46,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2143333807, now seen corresponding path program 67 times [2021-06-01 16:42:46,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:46,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616100048] [2021-06-01 16:42:46,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:47,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:47,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616100048] [2021-06-01 16:42:47,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616100048] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:47,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:47,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:47,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580058514] [2021-06-01 16:42:47,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:47,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:47,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:47,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:47,085 INFO L87 Difference]: Start difference. First operand 5040 states and 13372 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:49,780 INFO L93 Difference]: Finished difference Result 6417 states and 16748 transitions. [2021-06-01 16:42:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:42:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:49,787 INFO L225 Difference]: With dead ends: 6417 [2021-06-01 16:42:49,787 INFO L226 Difference]: Without dead ends: 6155 [2021-06-01 16:42:49,787 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2312.3ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:42:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2021-06-01 16:42:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 5012. [2021-06-01 16:42:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 2.6577529435242466) internal successors, (13318), 5011 states have internal predecessors, (13318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 13318 transitions. [2021-06-01 16:42:49,857 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 13318 transitions. Word has length 119 [2021-06-01 16:42:49,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:49,857 INFO L482 AbstractCegarLoop]: Abstraction has 5012 states and 13318 transitions. [2021-06-01 16:42:49,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:49,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 13318 transitions. [2021-06-01 16:42:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:49,861 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:49,861 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:49,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-01 16:42:49,861 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:49,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:49,861 INFO L82 PathProgramCache]: Analyzing trace with hash 3059487, now seen corresponding path program 68 times [2021-06-01 16:42:49,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:49,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139369701] [2021-06-01 16:42:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:50,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:50,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139369701] [2021-06-01 16:42:50,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139369701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:50,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:50,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:50,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642752872] [2021-06-01 16:42:50,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:50,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:50,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:50,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:50,463 INFO L87 Difference]: Start difference. First operand 5012 states and 13318 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:51,716 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-01 16:42:51,917 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:42:53,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:53,348 INFO L93 Difference]: Finished difference Result 6022 states and 15680 transitions. [2021-06-01 16:42:53,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:42:53,348 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:53,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:53,352 INFO L225 Difference]: With dead ends: 6022 [2021-06-01 16:42:53,352 INFO L226 Difference]: Without dead ends: 5707 [2021-06-01 16:42:53,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2427.1ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:42:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2021-06-01 16:42:53,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5028. [2021-06-01 16:42:53,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.654863735826537) internal successors, (13346), 5027 states have internal predecessors, (13346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13346 transitions. [2021-06-01 16:42:53,401 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13346 transitions. Word has length 119 [2021-06-01 16:42:53,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:53,402 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13346 transitions. [2021-06-01 16:42:53,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13346 transitions. [2021-06-01 16:42:53,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:53,405 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:53,405 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:53,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-01 16:42:53,405 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash 522420257, now seen corresponding path program 69 times [2021-06-01 16:42:53,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:53,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905099501] [2021-06-01 16:42:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:54,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:54,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905099501] [2021-06-01 16:42:54,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905099501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:54,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:54,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:54,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543993653] [2021-06-01 16:42:54,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:54,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:54,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:54,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:54,017 INFO L87 Difference]: Start difference. First operand 5028 states and 13346 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:55,432 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:42:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:56,494 INFO L93 Difference]: Finished difference Result 5687 states and 14941 transitions. [2021-06-01 16:42:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:42:56,494 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:56,499 INFO L225 Difference]: With dead ends: 5687 [2021-06-01 16:42:56,499 INFO L226 Difference]: Without dead ends: 5474 [2021-06-01 16:42:56,499 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2136.4ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:42:56,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2021-06-01 16:42:56,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5032. [2021-06-01 16:42:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 5031 states have (on average 2.653945537666468) internal successors, (13352), 5031 states have internal predecessors, (13352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:56,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 13352 transitions. [2021-06-01 16:42:56,547 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 13352 transitions. Word has length 119 [2021-06-01 16:42:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:56,547 INFO L482 AbstractCegarLoop]: Abstraction has 5032 states and 13352 transitions. [2021-06-01 16:42:56,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 13352 transitions. [2021-06-01 16:42:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:56,551 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:56,551 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:56,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-01 16:42:56,551 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:56,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1792695235, now seen corresponding path program 70 times [2021-06-01 16:42:56,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:56,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8150779] [2021-06-01 16:42:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:42:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:42:57,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:42:57,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8150779] [2021-06-01 16:42:57,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8150779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:42:57,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:42:57,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:42:57,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227260735] [2021-06-01 16:42:57,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:42:57,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:42:57,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:42:57,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:42:57,186 INFO L87 Difference]: Start difference. First operand 5032 states and 13352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:42:59,841 INFO L93 Difference]: Finished difference Result 5973 states and 15531 transitions. [2021-06-01 16:42:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:42:59,841 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:42:59,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:42:59,847 INFO L225 Difference]: With dead ends: 5973 [2021-06-01 16:42:59,847 INFO L226 Difference]: Without dead ends: 5651 [2021-06-01 16:42:59,847 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2332.8ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:42:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-06-01 16:42:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 4944. [2021-06-01 16:42:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4943 states have (on average 2.6663969249443658) internal successors, (13180), 4943 states have internal predecessors, (13180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 13180 transitions. [2021-06-01 16:42:59,897 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 13180 transitions. Word has length 119 [2021-06-01 16:42:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:42:59,898 INFO L482 AbstractCegarLoop]: Abstraction has 4944 states and 13180 transitions. [2021-06-01 16:42:59,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:42:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 13180 transitions. [2021-06-01 16:42:59,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:42:59,901 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:42:59,901 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:42:59,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-01 16:42:59,901 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:42:59,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:42:59,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1011915293, now seen corresponding path program 71 times [2021-06-01 16:42:59,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:42:59,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601167592] [2021-06-01 16:42:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:42:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:00,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:00,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601167592] [2021-06-01 16:43:00,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601167592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:00,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:00,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:43:00,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737926361] [2021-06-01 16:43:00,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:43:00,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:00,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:43:00,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:43:00,149 INFO L87 Difference]: Start difference. First operand 4944 states and 13180 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:00,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:00,604 INFO L93 Difference]: Finished difference Result 7703 states and 19760 transitions. [2021-06-01 16:43:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:43:00,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:00,610 INFO L225 Difference]: With dead ends: 7703 [2021-06-01 16:43:00,610 INFO L226 Difference]: Without dead ends: 7591 [2021-06-01 16:43:00,611 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 376.9ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:43:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2021-06-01 16:43:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 4568. [2021-06-01 16:43:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6301729800744473) internal successors, (12012), 4567 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12012 transitions. [2021-06-01 16:43:00,668 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12012 transitions. Word has length 119 [2021-06-01 16:43:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:00,668 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12012 transitions. [2021-06-01 16:43:00,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12012 transitions. [2021-06-01 16:43:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:00,671 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:00,671 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:00,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-01 16:43:00,672 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2140812199, now seen corresponding path program 72 times [2021-06-01 16:43:00,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:00,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543944365] [2021-06-01 16:43:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:01,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:01,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543944365] [2021-06-01 16:43:01,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543944365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:01,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:01,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:01,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840114239] [2021-06-01 16:43:01,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:01,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:01,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:01,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:01,299 INFO L87 Difference]: Start difference. First operand 4568 states and 12012 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:02,666 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-01 16:43:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:03,495 INFO L93 Difference]: Finished difference Result 5081 states and 13240 transitions. [2021-06-01 16:43:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:43:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:03,499 INFO L225 Difference]: With dead ends: 5081 [2021-06-01 16:43:03,499 INFO L226 Difference]: Without dead ends: 4852 [2021-06-01 16:43:03,500 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1964.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:43:03,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-06-01 16:43:03,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4568. [2021-06-01 16:43:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6284212831180205) internal successors, (12004), 4567 states have internal predecessors, (12004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12004 transitions. [2021-06-01 16:43:03,543 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12004 transitions. Word has length 119 [2021-06-01 16:43:03,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:03,543 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12004 transitions. [2021-06-01 16:43:03,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:03,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12004 transitions. [2021-06-01 16:43:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:03,546 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:03,546 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:03,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-01 16:43:03,547 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:03,547 INFO L82 PathProgramCache]: Analyzing trace with hash 2136394059, now seen corresponding path program 73 times [2021-06-01 16:43:03,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:03,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898208851] [2021-06-01 16:43:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:04,132 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:04,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898208851] [2021-06-01 16:43:04,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898208851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:04,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:04,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:04,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838348220] [2021-06-01 16:43:04,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:04,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:04,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:04,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:04,133 INFO L87 Difference]: Start difference. First operand 4568 states and 12004 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:05,244 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-01 16:43:06,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:06,399 INFO L93 Difference]: Finished difference Result 5503 states and 14343 transitions. [2021-06-01 16:43:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:43:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:06,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:06,404 INFO L225 Difference]: With dead ends: 5503 [2021-06-01 16:43:06,404 INFO L226 Difference]: Without dead ends: 5294 [2021-06-01 16:43:06,404 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1971.1ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:43:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-06-01 16:43:06,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4856. [2021-06-01 16:43:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4855 states have (on average 2.6249227600411946) internal successors, (12744), 4855 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 12744 transitions. [2021-06-01 16:43:06,450 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 12744 transitions. Word has length 119 [2021-06-01 16:43:06,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:06,450 INFO L482 AbstractCegarLoop]: Abstraction has 4856 states and 12744 transitions. [2021-06-01 16:43:06,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:06,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 12744 transitions. [2021-06-01 16:43:06,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:06,454 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:06,454 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:06,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-01 16:43:06,454 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:06,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1661687757, now seen corresponding path program 74 times [2021-06-01 16:43:06,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:06,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952561595] [2021-06-01 16:43:06,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:07,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:07,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952561595] [2021-06-01 16:43:07,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952561595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:07,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:07,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:07,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151226261] [2021-06-01 16:43:07,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:07,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:07,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:07,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:07,068 INFO L87 Difference]: Start difference. First operand 4856 states and 12744 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:09,627 INFO L93 Difference]: Finished difference Result 5955 states and 15363 transitions. [2021-06-01 16:43:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:43:09,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:09,631 INFO L225 Difference]: With dead ends: 5955 [2021-06-01 16:43:09,632 INFO L226 Difference]: Without dead ends: 4966 [2021-06-01 16:43:09,632 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2182.2ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:43:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4966 states. [2021-06-01 16:43:09,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4966 to 4520. [2021-06-01 16:43:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 4519 states have (on average 2.6297853507413143) internal successors, (11884), 4519 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 11884 transitions. [2021-06-01 16:43:09,677 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 11884 transitions. Word has length 119 [2021-06-01 16:43:09,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:09,677 INFO L482 AbstractCegarLoop]: Abstraction has 4520 states and 11884 transitions. [2021-06-01 16:43:09,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 11884 transitions. [2021-06-01 16:43:09,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:09,681 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:09,681 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:09,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-01 16:43:09,681 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:09,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1217623095, now seen corresponding path program 75 times [2021-06-01 16:43:09,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:09,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324787509] [2021-06-01 16:43:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:10,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:10,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324787509] [2021-06-01 16:43:10,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324787509] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:10,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:10,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:10,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735751294] [2021-06-01 16:43:10,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:10,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:10,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:10,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:10,307 INFO L87 Difference]: Start difference. First operand 4520 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:11,719 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-01 16:43:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:12,620 INFO L93 Difference]: Finished difference Result 5015 states and 13085 transitions. [2021-06-01 16:43:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:43:12,620 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:12,624 INFO L225 Difference]: With dead ends: 5015 [2021-06-01 16:43:12,624 INFO L226 Difference]: Without dead ends: 4682 [2021-06-01 16:43:12,624 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2038.9ms TimeCoverageRelationStatistics Valid=460, Invalid=2296, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:43:12,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2021-06-01 16:43:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4400. [2021-06-01 16:43:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 2.6487838145032963) internal successors, (11652), 4399 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 11652 transitions. [2021-06-01 16:43:12,666 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 11652 transitions. Word has length 119 [2021-06-01 16:43:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:12,666 INFO L482 AbstractCegarLoop]: Abstraction has 4400 states and 11652 transitions. [2021-06-01 16:43:12,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 11652 transitions. [2021-06-01 16:43:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:12,669 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:12,669 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:12,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-01 16:43:12,669 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:12,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:12,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1354769191, now seen corresponding path program 76 times [2021-06-01 16:43:12,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:12,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500143352] [2021-06-01 16:43:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:13,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:13,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500143352] [2021-06-01 16:43:13,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500143352] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:13,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:13,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:13,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825986696] [2021-06-01 16:43:13,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:13,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:13,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:13,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:13,300 INFO L87 Difference]: Start difference. First operand 4400 states and 11652 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:15,495 INFO L93 Difference]: Finished difference Result 4961 states and 13012 transitions. [2021-06-01 16:43:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:43:15,495 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:15,499 INFO L225 Difference]: With dead ends: 4961 [2021-06-01 16:43:15,499 INFO L226 Difference]: Without dead ends: 4704 [2021-06-01 16:43:15,499 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1925.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:43:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2021-06-01 16:43:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4368. [2021-06-01 16:43:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4367 states have (on average 2.6544538584840853) internal successors, (11592), 4367 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 11592 transitions. [2021-06-01 16:43:15,539 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 11592 transitions. Word has length 119 [2021-06-01 16:43:15,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:15,540 INFO L482 AbstractCegarLoop]: Abstraction has 4368 states and 11592 transitions. [2021-06-01 16:43:15,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:15,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 11592 transitions. [2021-06-01 16:43:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:15,543 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:15,543 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:15,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-01 16:43:15,543 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:15,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:15,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1857143795, now seen corresponding path program 77 times [2021-06-01 16:43:15,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:15,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987569360] [2021-06-01 16:43:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:15,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:15,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987569360] [2021-06-01 16:43:15,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987569360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:15,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:15,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:43:15,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876592919] [2021-06-01 16:43:15,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:43:15,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:15,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:43:15,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:43:15,744 INFO L87 Difference]: Start difference. First operand 4368 states and 11592 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:15,997 INFO L93 Difference]: Finished difference Result 7600 states and 19597 transitions. [2021-06-01 16:43:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:43:15,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:15,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:16,003 INFO L225 Difference]: With dead ends: 7600 [2021-06-01 16:43:16,003 INFO L226 Difference]: Without dead ends: 7600 [2021-06-01 16:43:16,003 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 242.3ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:43:16,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7600 states. [2021-06-01 16:43:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7600 to 4596. [2021-06-01 16:43:16,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 4595 states have (on average 2.610228509249184) internal successors, (11994), 4595 states have internal predecessors, (11994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 11994 transitions. [2021-06-01 16:43:16,058 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 11994 transitions. Word has length 119 [2021-06-01 16:43:16,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:16,058 INFO L482 AbstractCegarLoop]: Abstraction has 4596 states and 11994 transitions. [2021-06-01 16:43:16,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 11994 transitions. [2021-06-01 16:43:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:16,061 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:16,061 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:16,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-01 16:43:16,062 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:16,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:16,062 INFO L82 PathProgramCache]: Analyzing trace with hash -999147435, now seen corresponding path program 78 times [2021-06-01 16:43:16,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:16,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711792443] [2021-06-01 16:43:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:16,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:16,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711792443] [2021-06-01 16:43:16,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711792443] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:16,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:16,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:16,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366958821] [2021-06-01 16:43:16,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:16,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:16,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:16,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:16,646 INFO L87 Difference]: Start difference. First operand 4596 states and 11994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:19,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:19,527 INFO L93 Difference]: Finished difference Result 6838 states and 17606 transitions. [2021-06-01 16:43:19,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:43:19,527 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:19,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:19,534 INFO L225 Difference]: With dead ends: 6838 [2021-06-01 16:43:19,534 INFO L226 Difference]: Without dead ends: 6547 [2021-06-01 16:43:19,535 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2414.9ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:43:19,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2021-06-01 16:43:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 5028. [2021-06-01 16:43:19,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.626218420529143) internal successors, (13202), 5027 states have internal predecessors, (13202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13202 transitions. [2021-06-01 16:43:19,592 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13202 transitions. Word has length 119 [2021-06-01 16:43:19,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:19,592 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13202 transitions. [2021-06-01 16:43:19,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13202 transitions. [2021-06-01 16:43:19,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:19,595 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:19,595 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:19,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-01 16:43:19,595 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:19,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:19,596 INFO L82 PathProgramCache]: Analyzing trace with hash 4699763, now seen corresponding path program 79 times [2021-06-01 16:43:19,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:19,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843453374] [2021-06-01 16:43:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:20,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:20,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843453374] [2021-06-01 16:43:20,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843453374] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:20,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:20,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:20,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643243966] [2021-06-01 16:43:20,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:20,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:20,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:20,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:20,180 INFO L87 Difference]: Start difference. First operand 5028 states and 13202 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:22,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:22,991 INFO L93 Difference]: Finished difference Result 7400 states and 19144 transitions. [2021-06-01 16:43:22,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:43:22,991 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:22,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:22,997 INFO L225 Difference]: With dead ends: 7400 [2021-06-01 16:43:22,997 INFO L226 Difference]: Without dead ends: 6634 [2021-06-01 16:43:22,998 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2449.2ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:43:23,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2021-06-01 16:43:23,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 5148. [2021-06-01 16:43:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5148 states, 5147 states have (on average 2.606955508062949) internal successors, (13418), 5147 states have internal predecessors, (13418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 13418 transitions. [2021-06-01 16:43:23,054 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 13418 transitions. Word has length 119 [2021-06-01 16:43:23,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:23,054 INFO L482 AbstractCegarLoop]: Abstraction has 5148 states and 13418 transitions. [2021-06-01 16:43:23,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:23,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 13418 transitions. [2021-06-01 16:43:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:23,076 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:23,076 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:23,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-01 16:43:23,076 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:23,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1213125127, now seen corresponding path program 80 times [2021-06-01 16:43:23,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:23,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422786665] [2021-06-01 16:43:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:23,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:23,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422786665] [2021-06-01 16:43:23,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422786665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:23,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:23,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:23,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922522334] [2021-06-01 16:43:23,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:23,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:23,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:23,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:23,693 INFO L87 Difference]: Start difference. First operand 5148 states and 13418 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:26,742 INFO L93 Difference]: Finished difference Result 6825 states and 17521 transitions. [2021-06-01 16:43:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-01 16:43:26,742 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:26,747 INFO L225 Difference]: With dead ends: 6825 [2021-06-01 16:43:26,747 INFO L226 Difference]: Without dead ends: 6034 [2021-06-01 16:43:26,747 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2677.0ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-06-01 16:43:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-06-01 16:43:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 4548. [2021-06-01 16:43:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4547 states have (on average 2.606113921266769) internal successors, (11850), 4547 states have internal predecessors, (11850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 11850 transitions. [2021-06-01 16:43:26,793 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 11850 transitions. Word has length 119 [2021-06-01 16:43:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:26,793 INFO L482 AbstractCegarLoop]: Abstraction has 4548 states and 11850 transitions. [2021-06-01 16:43:26,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 11850 transitions. [2021-06-01 16:43:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:26,796 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:26,796 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:26,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-01 16:43:26,796 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:26,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:26,797 INFO L82 PathProgramCache]: Analyzing trace with hash 608023523, now seen corresponding path program 81 times [2021-06-01 16:43:26,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:26,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647803378] [2021-06-01 16:43:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:27,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:27,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647803378] [2021-06-01 16:43:27,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647803378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:27,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:27,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:27,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847179837] [2021-06-01 16:43:27,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:27,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:27,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:27,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:27,392 INFO L87 Difference]: Start difference. First operand 4548 states and 11850 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:28,944 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-01 16:43:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:30,394 INFO L93 Difference]: Finished difference Result 5576 states and 14238 transitions. [2021-06-01 16:43:30,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:43:30,394 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:30,399 INFO L225 Difference]: With dead ends: 5576 [2021-06-01 16:43:30,399 INFO L226 Difference]: Without dead ends: 5257 [2021-06-01 16:43:30,399 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2504.2ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:43:30,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2021-06-01 16:43:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 4536. [2021-06-01 16:43:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 4535 states have (on average 2.6063947078280045) internal successors, (11820), 4535 states have internal predecessors, (11820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 11820 transitions. [2021-06-01 16:43:30,447 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 11820 transitions. Word has length 119 [2021-06-01 16:43:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:30,447 INFO L482 AbstractCegarLoop]: Abstraction has 4536 states and 11820 transitions. [2021-06-01 16:43:30,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 11820 transitions. [2021-06-01 16:43:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:30,450 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:30,450 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:30,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-01 16:43:30,450 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:30,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1312338837, now seen corresponding path program 82 times [2021-06-01 16:43:30,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:30,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516604452] [2021-06-01 16:43:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:31,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:31,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516604452] [2021-06-01 16:43:31,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516604452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:31,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:31,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:31,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110505065] [2021-06-01 16:43:31,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:31,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:31,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:31,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:31,071 INFO L87 Difference]: Start difference. First operand 4536 states and 11820 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:32,277 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-01 16:43:32,449 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-01 16:43:33,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:33,889 INFO L93 Difference]: Finished difference Result 5346 states and 13574 transitions. [2021-06-01 16:43:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:43:33,889 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:33,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:33,892 INFO L225 Difference]: With dead ends: 5346 [2021-06-01 16:43:33,892 INFO L226 Difference]: Without dead ends: 4967 [2021-06-01 16:43:33,893 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2490.2ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:43:33,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4967 states. [2021-06-01 16:43:33,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4967 to 4516. [2021-06-01 16:43:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 2.613953488372093) internal successors, (11802), 4515 states have internal predecessors, (11802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11802 transitions. [2021-06-01 16:43:33,935 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11802 transitions. Word has length 119 [2021-06-01 16:43:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:33,935 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 11802 transitions. [2021-06-01 16:43:33,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:33,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11802 transitions. [2021-06-01 16:43:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:33,938 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:33,938 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:33,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-01 16:43:33,938 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:33,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1179169427, now seen corresponding path program 83 times [2021-06-01 16:43:33,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:33,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243960336] [2021-06-01 16:43:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:34,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:34,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243960336] [2021-06-01 16:43:34,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243960336] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:34,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:34,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:34,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570091833] [2021-06-01 16:43:34,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:34,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:34,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:34,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:34,570 INFO L87 Difference]: Start difference. First operand 4516 states and 11802 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:37,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:37,285 INFO L93 Difference]: Finished difference Result 5274 states and 13434 transitions. [2021-06-01 16:43:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:43:37,285 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:37,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:37,288 INFO L225 Difference]: With dead ends: 5274 [2021-06-01 16:43:37,288 INFO L226 Difference]: Without dead ends: 4955 [2021-06-01 16:43:37,289 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2368.1ms TimeCoverageRelationStatistics Valid=600, Invalid=2822, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:43:37,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2021-06-01 16:43:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4528. [2021-06-01 16:43:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 2.6092334879611223) internal successors, (11812), 4527 states have internal predecessors, (11812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 11812 transitions. [2021-06-01 16:43:37,332 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 11812 transitions. Word has length 119 [2021-06-01 16:43:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:37,332 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 11812 transitions. [2021-06-01 16:43:37,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 11812 transitions. [2021-06-01 16:43:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:37,335 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:37,335 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:37,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-01 16:43:37,335 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1183587567, now seen corresponding path program 84 times [2021-06-01 16:43:37,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:37,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755604371] [2021-06-01 16:43:37,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:37,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:37,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:37,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755604371] [2021-06-01 16:43:37,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755604371] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:37,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:37,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:37,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262621153] [2021-06-01 16:43:37,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:37,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:37,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:37,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:37,928 INFO L87 Difference]: Start difference. First operand 4528 states and 11812 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:40,853 INFO L93 Difference]: Finished difference Result 7050 states and 18169 transitions. [2021-06-01 16:43:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:43:40,853 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:40,859 INFO L225 Difference]: With dead ends: 7050 [2021-06-01 16:43:40,859 INFO L226 Difference]: Without dead ends: 6751 [2021-06-01 16:43:40,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2433.4ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:43:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2021-06-01 16:43:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5104. [2021-06-01 16:43:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5103 states have (on average 2.625906329610033) internal successors, (13400), 5103 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:40,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 13400 transitions. [2021-06-01 16:43:40,914 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 13400 transitions. Word has length 119 [2021-06-01 16:43:40,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:40,915 INFO L482 AbstractCegarLoop]: Abstraction has 5104 states and 13400 transitions. [2021-06-01 16:43:40,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 13400 transitions. [2021-06-01 16:43:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:40,918 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:40,918 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:40,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-01 16:43:40,918 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:40,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1658293869, now seen corresponding path program 85 times [2021-06-01 16:43:40,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:40,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005460837] [2021-06-01 16:43:40,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:41,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:41,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005460837] [2021-06-01 16:43:41,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005460837] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:41,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:41,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:41,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160103564] [2021-06-01 16:43:41,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:41,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:41,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:41,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:41,531 INFO L87 Difference]: Start difference. First operand 5104 states and 13400 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:44,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:44,676 INFO L93 Difference]: Finished difference Result 7738 states and 19953 transitions. [2021-06-01 16:43:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-01 16:43:44,677 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:44,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:44,681 INFO L225 Difference]: With dead ends: 7738 [2021-06-01 16:43:44,681 INFO L226 Difference]: Without dead ends: 6190 [2021-06-01 16:43:44,682 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2696.6ms TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2021-06-01 16:43:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-06-01 16:43:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 4576. [2021-06-01 16:43:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4575 states have (on average 2.5975956284153003) internal successors, (11884), 4575 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 11884 transitions. [2021-06-01 16:43:44,728 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 11884 transitions. Word has length 119 [2021-06-01 16:43:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:44,729 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 11884 transitions. [2021-06-01 16:43:44,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 11884 transitions. [2021-06-01 16:43:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:44,732 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:44,732 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:44,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-01 16:43:44,732 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:44,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2102358531, now seen corresponding path program 86 times [2021-06-01 16:43:44,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:44,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739464566] [2021-06-01 16:43:44,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:45,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:45,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739464566] [2021-06-01 16:43:45,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739464566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:45,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:45,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:45,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577118226] [2021-06-01 16:43:45,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:45,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:45,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:45,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:45,330 INFO L87 Difference]: Start difference. First operand 4576 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:46,803 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-01 16:43:48,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:48,171 INFO L93 Difference]: Finished difference Result 5684 states and 14488 transitions. [2021-06-01 16:43:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:43:48,172 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:48,176 INFO L225 Difference]: With dead ends: 5684 [2021-06-01 16:43:48,176 INFO L226 Difference]: Without dead ends: 5261 [2021-06-01 16:43:48,177 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2452.7ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:43:48,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2021-06-01 16:43:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 4456. [2021-06-01 16:43:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4455 states have (on average 2.6154882154882153) internal successors, (11652), 4455 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 11652 transitions. [2021-06-01 16:43:48,220 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 11652 transitions. Word has length 119 [2021-06-01 16:43:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:48,221 INFO L482 AbstractCegarLoop]: Abstraction has 4456 states and 11652 transitions. [2021-06-01 16:43:48,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:48,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 11652 transitions. [2021-06-01 16:43:48,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:48,224 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:48,224 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:48,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-01 16:43:48,224 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:48,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:48,224 INFO L82 PathProgramCache]: Analyzing trace with hash -858513275, now seen corresponding path program 87 times [2021-06-01 16:43:48,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:48,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111000382] [2021-06-01 16:43:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:48,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:48,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:48,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111000382] [2021-06-01 16:43:48,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111000382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:48,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:48,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:43:48,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035733816] [2021-06-01 16:43:48,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:43:48,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:48,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:43:48,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:43:48,458 INFO L87 Difference]: Start difference. First operand 4456 states and 11652 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:48,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:48,917 INFO L93 Difference]: Finished difference Result 4374 states and 11032 transitions. [2021-06-01 16:43:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:43:48,918 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:48,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:48,920 INFO L225 Difference]: With dead ends: 4374 [2021-06-01 16:43:48,920 INFO L226 Difference]: Without dead ends: 4262 [2021-06-01 16:43:48,921 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 398.2ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:43:48,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2021-06-01 16:43:48,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 3600. [2021-06-01 16:43:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3599 states have (on average 2.569046957488191) internal successors, (9246), 3599 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 9246 transitions. [2021-06-01 16:43:48,956 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 9246 transitions. Word has length 119 [2021-06-01 16:43:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:48,956 INFO L482 AbstractCegarLoop]: Abstraction has 3600 states and 9246 transitions. [2021-06-01 16:43:48,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 9246 transitions. [2021-06-01 16:43:48,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:48,959 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:48,959 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:48,959 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-01 16:43:48,959 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:48,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1610574523, now seen corresponding path program 88 times [2021-06-01 16:43:48,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:48,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706228484] [2021-06-01 16:43:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:49,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:49,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706228484] [2021-06-01 16:43:49,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706228484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:49,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:49,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:49,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643907988] [2021-06-01 16:43:49,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:49,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:49,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:49,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:49,566 INFO L87 Difference]: Start difference. First operand 3600 states and 9246 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:50,868 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:43:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:51,717 INFO L93 Difference]: Finished difference Result 3873 states and 9766 transitions. [2021-06-01 16:43:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:43:51,717 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:51,720 INFO L225 Difference]: With dead ends: 3873 [2021-06-01 16:43:51,720 INFO L226 Difference]: Without dead ends: 3648 [2021-06-01 16:43:51,721 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1904.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:43:51,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-06-01 16:43:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3620. [2021-06-01 16:43:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3619 states have (on average 2.564244266371926) internal successors, (9280), 3619 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9280 transitions. [2021-06-01 16:43:51,766 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9280 transitions. Word has length 119 [2021-06-01 16:43:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:51,766 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9280 transitions. [2021-06-01 16:43:51,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:51,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9280 transitions. [2021-06-01 16:43:51,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:51,769 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:51,769 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:51,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-01 16:43:51,769 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:51,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:51,769 INFO L82 PathProgramCache]: Analyzing trace with hash -561914449, now seen corresponding path program 89 times [2021-06-01 16:43:51,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:51,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932084372] [2021-06-01 16:43:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:52,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:52,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932084372] [2021-06-01 16:43:52,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932084372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:52,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:52,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:52,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155813728] [2021-06-01 16:43:52,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:52,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:52,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:52,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:52,353 INFO L87 Difference]: Start difference. First operand 3620 states and 9280 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:54,571 INFO L93 Difference]: Finished difference Result 3971 states and 9972 transitions. [2021-06-01 16:43:54,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:43:54,571 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:54,574 INFO L225 Difference]: With dead ends: 3971 [2021-06-01 16:43:54,574 INFO L226 Difference]: Without dead ends: 3737 [2021-06-01 16:43:54,574 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1973.9ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:43:54,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-06-01 16:43:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3624. [2021-06-01 16:43:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3623 states have (on average 2.5630692796025394) internal successors, (9286), 3623 states have internal predecessors, (9286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:54,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9286 transitions. [2021-06-01 16:43:54,608 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9286 transitions. Word has length 119 [2021-06-01 16:43:54,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:54,608 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9286 transitions. [2021-06-01 16:43:54,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9286 transitions. [2021-06-01 16:43:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:54,611 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:54,611 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:54,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-01 16:43:54,611 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:54,611 INFO L82 PathProgramCache]: Analyzing trace with hash -975682845, now seen corresponding path program 90 times [2021-06-01 16:43:54,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:54,611 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490602228] [2021-06-01 16:43:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:55,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:55,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490602228] [2021-06-01 16:43:55,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490602228] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:55,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:55,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:55,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584715415] [2021-06-01 16:43:55,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:55,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:55,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:55,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:55,217 INFO L87 Difference]: Start difference. First operand 3624 states and 9286 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:43:57,323 INFO L93 Difference]: Finished difference Result 3853 states and 9720 transitions. [2021-06-01 16:43:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:43:57,323 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:43:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:43:57,325 INFO L225 Difference]: With dead ends: 3853 [2021-06-01 16:43:57,325 INFO L226 Difference]: Without dead ends: 3624 [2021-06-01 16:43:57,325 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1913.0ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:43:57,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2021-06-01 16:43:57,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3608. [2021-06-01 16:43:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3607 states have (on average 2.5650124757416135) internal successors, (9252), 3607 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 9252 transitions. [2021-06-01 16:43:57,357 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 9252 transitions. Word has length 119 [2021-06-01 16:43:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:43:57,358 INFO L482 AbstractCegarLoop]: Abstraction has 3608 states and 9252 transitions. [2021-06-01 16:43:57,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:43:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 9252 transitions. [2021-06-01 16:43:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:43:57,360 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:43:57,360 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:43:57,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-01 16:43:57,360 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:43:57,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:43:57,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2036752141, now seen corresponding path program 91 times [2021-06-01 16:43:57,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:43:57,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873275792] [2021-06-01 16:43:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:43:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:43:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:43:57,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:43:57,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873275792] [2021-06-01 16:43:57,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873275792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:43:57,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:43:57,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:43:57,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613897907] [2021-06-01 16:43:57,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:43:57,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:43:57,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:43:57,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:43:57,944 INFO L87 Difference]: Start difference. First operand 3608 states and 9252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:00,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:00,366 INFO L93 Difference]: Finished difference Result 4193 states and 10572 transitions. [2021-06-01 16:44:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:44:00,366 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:00,369 INFO L225 Difference]: With dead ends: 4193 [2021-06-01 16:44:00,369 INFO L226 Difference]: Without dead ends: 3959 [2021-06-01 16:44:00,369 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2119.8ms TimeCoverageRelationStatistics Valid=460, Invalid=2402, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:44:00,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2021-06-01 16:44:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3644. [2021-06-01 16:44:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3643 states have (on average 2.5632720285479) internal successors, (9338), 3643 states have internal predecessors, (9338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 9338 transitions. [2021-06-01 16:44:00,403 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 9338 transitions. Word has length 119 [2021-06-01 16:44:00,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:00,403 INFO L482 AbstractCegarLoop]: Abstraction has 3644 states and 9338 transitions. [2021-06-01 16:44:00,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 9338 transitions. [2021-06-01 16:44:00,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:00,406 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:00,406 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:00,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-01 16:44:00,406 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:00,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:00,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1276480877, now seen corresponding path program 92 times [2021-06-01 16:44:00,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:00,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520725162] [2021-06-01 16:44:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:00,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:00,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520725162] [2021-06-01 16:44:00,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520725162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:00,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:00,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:00,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902916343] [2021-06-01 16:44:00,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:00,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:00,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:00,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:00,965 INFO L87 Difference]: Start difference. First operand 3644 states and 9338 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:03,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:03,313 INFO L93 Difference]: Finished difference Result 4573 states and 11563 transitions. [2021-06-01 16:44:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:44:03,313 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:03,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:03,316 INFO L225 Difference]: With dead ends: 4573 [2021-06-01 16:44:03,317 INFO L226 Difference]: Without dead ends: 4364 [2021-06-01 16:44:03,317 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1930.6ms TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:44:03,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2021-06-01 16:44:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3980. [2021-06-01 16:44:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3979 states have (on average 2.5569238502136216) internal successors, (10174), 3979 states have internal predecessors, (10174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 10174 transitions. [2021-06-01 16:44:03,357 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 10174 transitions. Word has length 119 [2021-06-01 16:44:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:03,357 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 10174 transitions. [2021-06-01 16:44:03,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 10174 transitions. [2021-06-01 16:44:03,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:03,360 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:03,360 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:03,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-01 16:44:03,360 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:03,361 INFO L82 PathProgramCache]: Analyzing trace with hash 801774575, now seen corresponding path program 93 times [2021-06-01 16:44:03,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:03,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90943957] [2021-06-01 16:44:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:03,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:03,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:03,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90943957] [2021-06-01 16:44:03,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90943957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:03,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:03,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:03,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18156582] [2021-06-01 16:44:03,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:03,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:03,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:03,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:03,950 INFO L87 Difference]: Start difference. First operand 3980 states and 10174 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:06,674 INFO L93 Difference]: Finished difference Result 5025 states and 12583 transitions. [2021-06-01 16:44:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:44:06,674 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:06,678 INFO L225 Difference]: With dead ends: 5025 [2021-06-01 16:44:06,678 INFO L226 Difference]: Without dead ends: 3916 [2021-06-01 16:44:06,678 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2297.3ms TimeCoverageRelationStatistics Valid=524, Invalid=2782, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:44:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-06-01 16:44:06,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3524. [2021-06-01 16:44:06,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 2.551234743116662) internal successors, (8988), 3523 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 8988 transitions. [2021-06-01 16:44:06,711 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 8988 transitions. Word has length 119 [2021-06-01 16:44:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:06,711 INFO L482 AbstractCegarLoop]: Abstraction has 3524 states and 8988 transitions. [2021-06-01 16:44:06,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 8988 transitions. [2021-06-01 16:44:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:06,714 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:06,714 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:06,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-01 16:44:06,714 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:06,715 INFO L82 PathProgramCache]: Analyzing trace with hash -675343967, now seen corresponding path program 94 times [2021-06-01 16:44:06,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:06,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89814697] [2021-06-01 16:44:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:07,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:07,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89814697] [2021-06-01 16:44:07,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89814697] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:07,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:07,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:07,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796093395] [2021-06-01 16:44:07,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:07,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:07,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:07,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:07,292 INFO L87 Difference]: Start difference. First operand 3524 states and 8988 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:09,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:09,845 INFO L93 Difference]: Finished difference Result 3863 states and 9658 transitions. [2021-06-01 16:44:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:44:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:09,849 INFO L225 Difference]: With dead ends: 3863 [2021-06-01 16:44:09,849 INFO L226 Difference]: Without dead ends: 3629 [2021-06-01 16:44:09,849 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2183.8ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:44:09,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2021-06-01 16:44:09,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3528. [2021-06-01 16:44:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3527 states have (on average 2.550042529061525) internal successors, (8994), 3527 states have internal predecessors, (8994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 8994 transitions. [2021-06-01 16:44:09,882 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 8994 transitions. Word has length 119 [2021-06-01 16:44:09,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:09,882 INFO L482 AbstractCegarLoop]: Abstraction has 3528 states and 8994 transitions. [2021-06-01 16:44:09,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 8994 transitions. [2021-06-01 16:44:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:09,885 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:09,885 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:09,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-01 16:44:09,885 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:09,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:09,885 INFO L82 PathProgramCache]: Analyzing trace with hash -617262355, now seen corresponding path program 95 times [2021-06-01 16:44:09,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:09,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884236730] [2021-06-01 16:44:09,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:10,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:10,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884236730] [2021-06-01 16:44:10,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884236730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:10,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:10,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:10,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944135717] [2021-06-01 16:44:10,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:10,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:10,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:10,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:10,484 INFO L87 Difference]: Start difference. First operand 3528 states and 8994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:11,965 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:44:12,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:12,913 INFO L93 Difference]: Finished difference Result 3749 states and 9412 transitions. [2021-06-01 16:44:12,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:44:12,913 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:12,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:12,916 INFO L225 Difference]: With dead ends: 3749 [2021-06-01 16:44:12,916 INFO L226 Difference]: Without dead ends: 3532 [2021-06-01 16:44:12,916 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2112.3ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:44:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2021-06-01 16:44:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3524. [2021-06-01 16:44:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 2.55066704513199) internal successors, (8986), 3523 states have internal predecessors, (8986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 8986 transitions. [2021-06-01 16:44:12,949 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 8986 transitions. Word has length 119 [2021-06-01 16:44:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:12,949 INFO L482 AbstractCegarLoop]: Abstraction has 3524 states and 8986 transitions. [2021-06-01 16:44:12,949 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 8986 transitions. [2021-06-01 16:44:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:12,951 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:12,951 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:12,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-01 16:44:12,952 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:12,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1217956447, now seen corresponding path program 96 times [2021-06-01 16:44:12,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:12,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311312615] [2021-06-01 16:44:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:13,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:13,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311312615] [2021-06-01 16:44:13,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311312615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:13,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:13,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:13,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364240] [2021-06-01 16:44:13,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:13,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:13,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:13,554 INFO L87 Difference]: Start difference. First operand 3524 states and 8986 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:14,673 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-01 16:44:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:16,079 INFO L93 Difference]: Finished difference Result 4011 states and 10071 transitions. [2021-06-01 16:44:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:44:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:16,082 INFO L225 Difference]: With dead ends: 4011 [2021-06-01 16:44:16,082 INFO L226 Difference]: Without dead ends: 3802 [2021-06-01 16:44:16,082 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2134.0ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:44:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2021-06-01 16:44:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3668. [2021-06-01 16:44:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 2.547586583037906) internal successors, (9342), 3667 states have internal predecessors, (9342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:16,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 9342 transitions. [2021-06-01 16:44:16,115 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 9342 transitions. Word has length 119 [2021-06-01 16:44:16,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:16,115 INFO L482 AbstractCegarLoop]: Abstraction has 3668 states and 9342 transitions. [2021-06-01 16:44:16,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:16,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 9342 transitions. [2021-06-01 16:44:16,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:16,117 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:16,117 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:16,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-01 16:44:16,118 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:16,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1692662749, now seen corresponding path program 97 times [2021-06-01 16:44:16,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:16,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641159175] [2021-06-01 16:44:16,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:16,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:16,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641159175] [2021-06-01 16:44:16,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641159175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:16,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:16,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:16,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393821997] [2021-06-01 16:44:16,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:16,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:16,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:16,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:16,698 INFO L87 Difference]: Start difference. First operand 3668 states and 9342 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:19,331 INFO L93 Difference]: Finished difference Result 4283 states and 10647 transitions. [2021-06-01 16:44:19,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:44:19,331 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:19,334 INFO L225 Difference]: With dead ends: 4283 [2021-06-01 16:44:19,334 INFO L226 Difference]: Without dead ends: 3294 [2021-06-01 16:44:19,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2318.0ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:44:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2021-06-01 16:44:19,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3116. [2021-06-01 16:44:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 2.5495987158908506) internal successors, (7942), 3115 states have internal predecessors, (7942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 7942 transitions. [2021-06-01 16:44:19,364 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 7942 transitions. Word has length 119 [2021-06-01 16:44:19,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:19,364 INFO L482 AbstractCegarLoop]: Abstraction has 3116 states and 7942 transitions. [2021-06-01 16:44:19,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:19,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 7942 transitions. [2021-06-01 16:44:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:19,367 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:19,367 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:19,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-01 16:44:19,367 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:19,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:19,367 INFO L82 PathProgramCache]: Analyzing trace with hash -2136727411, now seen corresponding path program 98 times [2021-06-01 16:44:19,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:19,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6422310] [2021-06-01 16:44:19,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:19,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:19,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6422310] [2021-06-01 16:44:19,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6422310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:19,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:19,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:19,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593704028] [2021-06-01 16:44:19,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:19,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:19,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:19,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:19,969 INFO L87 Difference]: Start difference. First operand 3116 states and 7942 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:21,321 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-01 16:44:22,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:22,331 INFO L93 Difference]: Finished difference Result 3337 states and 8360 transitions. [2021-06-01 16:44:22,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:44:22,331 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:22,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:22,333 INFO L225 Difference]: With dead ends: 3337 [2021-06-01 16:44:22,334 INFO L226 Difference]: Without dead ends: 3004 [2021-06-01 16:44:22,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2130.1ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:44:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2021-06-01 16:44:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2996. [2021-06-01 16:44:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2995 states have (on average 2.5742904841402336) internal successors, (7710), 2995 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:22,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 7710 transitions. [2021-06-01 16:44:22,362 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 7710 transitions. Word has length 119 [2021-06-01 16:44:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:22,362 INFO L482 AbstractCegarLoop]: Abstraction has 2996 states and 7710 transitions. [2021-06-01 16:44:22,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 7710 transitions. [2021-06-01 16:44:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:22,364 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:22,364 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:22,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-01 16:44:22,365 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:22,365 INFO L82 PathProgramCache]: Analyzing trace with hash -148470063, now seen corresponding path program 99 times [2021-06-01 16:44:22,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:22,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309066541] [2021-06-01 16:44:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:22,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:22,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:22,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309066541] [2021-06-01 16:44:22,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309066541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:22,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:22,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:22,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545035544] [2021-06-01 16:44:22,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:22,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:22,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:22,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:22,953 INFO L87 Difference]: Start difference. First operand 2996 states and 7710 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:24,135 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-01 16:44:24,327 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-01 16:44:25,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:25,160 INFO L93 Difference]: Finished difference Result 3221 states and 8141 transitions. [2021-06-01 16:44:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:25,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:25,163 INFO L225 Difference]: With dead ends: 3221 [2021-06-01 16:44:25,163 INFO L226 Difference]: Without dead ends: 2964 [2021-06-01 16:44:25,163 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1964.9ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-06-01 16:44:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2021-06-01 16:44:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 2.5818427269659128) internal successors, (7650), 2963 states have internal predecessors, (7650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 7650 transitions. [2021-06-01 16:44:25,192 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 7650 transitions. Word has length 119 [2021-06-01 16:44:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:25,192 INFO L482 AbstractCegarLoop]: Abstraction has 2964 states and 7650 transitions. [2021-06-01 16:44:25,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 7650 transitions. [2021-06-01 16:44:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:25,194 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:25,195 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:25,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-01 16:44:25,195 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:25,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:25,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1962623843, now seen corresponding path program 100 times [2021-06-01 16:44:25,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:25,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500942635] [2021-06-01 16:44:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:25,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:25,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500942635] [2021-06-01 16:44:25,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500942635] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:25,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:25,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:25,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321436047] [2021-06-01 16:44:25,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:25,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:25,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:25,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:25,829 INFO L87 Difference]: Start difference. First operand 2964 states and 7650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:27,023 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-01 16:44:27,230 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-01 16:44:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:28,129 INFO L93 Difference]: Finished difference Result 3277 states and 8257 transitions. [2021-06-01 16:44:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:28,129 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:28,132 INFO L225 Difference]: With dead ends: 3277 [2021-06-01 16:44:28,132 INFO L226 Difference]: Without dead ends: 3052 [2021-06-01 16:44:28,132 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2069.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2021-06-01 16:44:28,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 2988. [2021-06-01 16:44:28,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.575828590559089) internal successors, (7694), 2987 states have internal predecessors, (7694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:28,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7694 transitions. [2021-06-01 16:44:28,161 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7694 transitions. Word has length 119 [2021-06-01 16:44:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:28,161 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7694 transitions. [2021-06-01 16:44:28,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:28,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7694 transitions. [2021-06-01 16:44:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:28,163 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:28,163 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:28,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-01 16:44:28,163 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:28,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:28,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1812982683, now seen corresponding path program 101 times [2021-06-01 16:44:28,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:28,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007646022] [2021-06-01 16:44:28,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:28,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:28,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:28,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007646022] [2021-06-01 16:44:28,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007646022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:28,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:28,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:28,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538894134] [2021-06-01 16:44:28,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:28,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:28,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:28,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:28,797 INFO L87 Difference]: Start difference. First operand 2988 states and 7694 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:30,177 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:44:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:31,253 INFO L93 Difference]: Finished difference Result 3257 states and 8215 transitions. [2021-06-01 16:44:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:44:31,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:31,256 INFO L225 Difference]: With dead ends: 3257 [2021-06-01 16:44:31,256 INFO L226 Difference]: Without dead ends: 3044 [2021-06-01 16:44:31,257 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2217.1ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:44:31,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2021-06-01 16:44:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2992. [2021-06-01 16:44:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2991 states have (on average 2.5743898361751922) internal successors, (7700), 2991 states have internal predecessors, (7700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:31,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 7700 transitions. [2021-06-01 16:44:31,285 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 7700 transitions. Word has length 119 [2021-06-01 16:44:31,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:31,285 INFO L482 AbstractCegarLoop]: Abstraction has 2992 states and 7700 transitions. [2021-06-01 16:44:31,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:31,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 7700 transitions. [2021-06-01 16:44:31,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:31,287 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:31,287 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:31,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-01 16:44:31,287 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:31,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:31,288 INFO L82 PathProgramCache]: Analyzing trace with hash 166869121, now seen corresponding path program 102 times [2021-06-01 16:44:31,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:31,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291012800] [2021-06-01 16:44:31,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:31,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:31,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291012800] [2021-06-01 16:44:31,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291012800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:31,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:31,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:31,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783153432] [2021-06-01 16:44:31,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:31,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:31,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:31,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:31,959 INFO L87 Difference]: Start difference. First operand 2992 states and 7700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:34,320 INFO L93 Difference]: Finished difference Result 3359 states and 8437 transitions. [2021-06-01 16:44:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:44:34,320 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:34,323 INFO L225 Difference]: With dead ends: 3359 [2021-06-01 16:44:34,323 INFO L226 Difference]: Without dead ends: 3109 [2021-06-01 16:44:34,323 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2172.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:44:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-06-01 16:44:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2976. [2021-06-01 16:44:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-06-01 16:44:34,351 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-06-01 16:44:34,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:34,351 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-06-01 16:44:34,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-06-01 16:44:34,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:34,353 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:34,353 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:34,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-01 16:44:34,354 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:34,354 INFO L82 PathProgramCache]: Analyzing trace with hash 207914029, now seen corresponding path program 103 times [2021-06-01 16:44:34,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:34,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034299344] [2021-06-01 16:44:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:34,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:34,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034299344] [2021-06-01 16:44:34,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034299344] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:34,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:34,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:34,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466264426] [2021-06-01 16:44:34,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:34,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:34,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:34,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:34,960 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:37,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:37,132 INFO L93 Difference]: Finished difference Result 3241 states and 8172 transitions. [2021-06-01 16:44:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:37,133 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:37,135 INFO L225 Difference]: With dead ends: 3241 [2021-06-01 16:44:37,135 INFO L226 Difference]: Without dead ends: 3008 [2021-06-01 16:44:37,136 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1904.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:37,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-06-01 16:44:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2968. [2021-06-01 16:44:37,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2967 states have (on average 2.5803842264914056) internal successors, (7656), 2967 states have internal predecessors, (7656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 7656 transitions. [2021-06-01 16:44:37,173 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 7656 transitions. Word has length 119 [2021-06-01 16:44:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:37,173 INFO L482 AbstractCegarLoop]: Abstraction has 2968 states and 7656 transitions. [2021-06-01 16:44:37,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 7656 transitions. [2021-06-01 16:44:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:37,175 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:37,175 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:37,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-01 16:44:37,175 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:37,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:37,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2020464481, now seen corresponding path program 104 times [2021-06-01 16:44:37,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:37,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869959590] [2021-06-01 16:44:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:37,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:37,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869959590] [2021-06-01 16:44:37,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869959590] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:37,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:37,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:37,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274527152] [2021-06-01 16:44:37,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:37,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:37,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:37,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:37,775 INFO L87 Difference]: Start difference. First operand 2968 states and 7656 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:38,965 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-01 16:44:39,182 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-01 16:44:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:40,097 INFO L93 Difference]: Finished difference Result 3233 states and 8171 transitions. [2021-06-01 16:44:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:40,099 INFO L225 Difference]: With dead ends: 3233 [2021-06-01 16:44:40,099 INFO L226 Difference]: Without dead ends: 3008 [2021-06-01 16:44:40,099 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2032.3ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-06-01 16:44:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2976. [2021-06-01 16:44:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-06-01 16:44:40,126 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-06-01 16:44:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:40,126 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-06-01 16:44:40,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-06-01 16:44:40,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:40,128 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:40,128 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:40,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-01 16:44:40,128 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:40,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:40,129 INFO L82 PathProgramCache]: Analyzing trace with hash -894055897, now seen corresponding path program 105 times [2021-06-01 16:44:40,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:40,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246326080] [2021-06-01 16:44:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:40,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:40,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246326080] [2021-06-01 16:44:40,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246326080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:40,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:40,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:40,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879291830] [2021-06-01 16:44:40,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:40,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:40,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:40,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:40,767 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:42,016 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:44:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:42,854 INFO L93 Difference]: Finished difference Result 3221 states and 8142 transitions. [2021-06-01 16:44:42,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:42,855 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:42,857 INFO L225 Difference]: With dead ends: 3221 [2021-06-01 16:44:42,857 INFO L226 Difference]: Without dead ends: 2992 [2021-06-01 16:44:42,857 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1932.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:42,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-06-01 16:44:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2984. [2021-06-01 16:44:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2983 states have (on average 2.5745893395910158) internal successors, (7680), 2983 states have internal predecessors, (7680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 7680 transitions. [2021-06-01 16:44:42,884 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 7680 transitions. Word has length 119 [2021-06-01 16:44:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:42,884 INFO L482 AbstractCegarLoop]: Abstraction has 2984 states and 7680 transitions. [2021-06-01 16:44:42,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 7680 transitions. [2021-06-01 16:44:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:42,886 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:42,886 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:42,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-01 16:44:42,886 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:42,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1550755139, now seen corresponding path program 106 times [2021-06-01 16:44:42,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:42,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107574491] [2021-06-01 16:44:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:43,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:43,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107574491] [2021-06-01 16:44:43,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107574491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:43,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:43,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:43,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355056595] [2021-06-01 16:44:43,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:43,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:43,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:43,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:43,479 INFO L87 Difference]: Start difference. First operand 2984 states and 7680 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:45,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:45,705 INFO L93 Difference]: Finished difference Result 3319 states and 8344 transitions. [2021-06-01 16:44:45,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:44:45,706 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:45,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:45,708 INFO L225 Difference]: With dead ends: 3319 [2021-06-01 16:44:45,708 INFO L226 Difference]: Without dead ends: 3085 [2021-06-01 16:44:45,708 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1962.9ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:44:45,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-01 16:44:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2988. [2021-06-01 16:44:45,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.573150318044861) internal successors, (7686), 2987 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7686 transitions. [2021-06-01 16:44:45,735 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7686 transitions. Word has length 119 [2021-06-01 16:44:45,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:45,735 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7686 transitions. [2021-06-01 16:44:45,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7686 transitions. [2021-06-01 16:44:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:45,737 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:45,737 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:45,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-01 16:44:45,738 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:45,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1964523535, now seen corresponding path program 107 times [2021-06-01 16:44:45,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:45,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430308414] [2021-06-01 16:44:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:46,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:46,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430308414] [2021-06-01 16:44:46,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430308414] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:46,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:46,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:46,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005537081] [2021-06-01 16:44:46,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:46,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:46,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:46,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:46,361 INFO L87 Difference]: Start difference. First operand 2988 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:47,648 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:44:48,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:48,505 INFO L93 Difference]: Finished difference Result 3201 states and 8092 transitions. [2021-06-01 16:44:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:48,505 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:48,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:48,507 INFO L225 Difference]: With dead ends: 3201 [2021-06-01 16:44:48,507 INFO L226 Difference]: Without dead ends: 2940 [2021-06-01 16:44:48,508 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1940.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-06-01 16:44:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2021-06-01 16:44:48,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2939 states have (on average 2.586594079618918) internal successors, (7602), 2939 states have internal predecessors, (7602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 7602 transitions. [2021-06-01 16:44:48,535 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 7602 transitions. Word has length 119 [2021-06-01 16:44:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:48,535 INFO L482 AbstractCegarLoop]: Abstraction has 2940 states and 7602 transitions. [2021-06-01 16:44:48,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 7602 transitions. [2021-06-01 16:44:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:48,538 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:48,538 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:48,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-01 16:44:48,538 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:48,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:48,538 INFO L82 PathProgramCache]: Analyzing trace with hash -12675855, now seen corresponding path program 108 times [2021-06-01 16:44:48,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:48,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547447100] [2021-06-01 16:44:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:49,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:49,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547447100] [2021-06-01 16:44:49,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547447100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:49,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:49,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:49,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454324110] [2021-06-01 16:44:49,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:49,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:49,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:49,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:49,187 INFO L87 Difference]: Start difference. First operand 2940 states and 7602 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:50,385 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-01 16:44:50,623 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-01 16:44:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:51,513 INFO L93 Difference]: Finished difference Result 3255 states and 8264 transitions. [2021-06-01 16:44:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:44:51,514 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:51,516 INFO L225 Difference]: With dead ends: 3255 [2021-06-01 16:44:51,516 INFO L226 Difference]: Without dead ends: 3102 [2021-06-01 16:44:51,516 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2058.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:44:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2021-06-01 16:44:51,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2980. [2021-06-01 16:44:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.582074521651561) internal successors, (7692), 2979 states have internal predecessors, (7692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:51,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7692 transitions. [2021-06-01 16:44:51,544 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7692 transitions. Word has length 119 [2021-06-01 16:44:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:51,544 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7692 transitions. [2021-06-01 16:44:51,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7692 transitions. [2021-06-01 16:44:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:51,546 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:51,546 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:51,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-01 16:44:51,546 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:51,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:51,547 INFO L82 PathProgramCache]: Analyzing trace with hash 506684915, now seen corresponding path program 109 times [2021-06-01 16:44:51,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:51,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825031839] [2021-06-01 16:44:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:52,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:52,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825031839] [2021-06-01 16:44:52,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825031839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:52,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:52,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:52,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418896555] [2021-06-01 16:44:52,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:52,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:52,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:52,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:52,221 INFO L87 Difference]: Start difference. First operand 2980 states and 7692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:53,265 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-01 16:44:53,602 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:44:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:54,659 INFO L93 Difference]: Finished difference Result 3251 states and 8252 transitions. [2021-06-01 16:44:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:44:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:54,662 INFO L225 Difference]: With dead ends: 3251 [2021-06-01 16:44:54,662 INFO L226 Difference]: Without dead ends: 3104 [2021-06-01 16:44:54,662 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2259.2ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:44:54,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-06-01 16:44:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 2982. [2021-06-01 16:44:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.581348540758135) internal successors, (7695), 2981 states have internal predecessors, (7695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7695 transitions. [2021-06-01 16:44:54,689 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7695 transitions. Word has length 119 [2021-06-01 16:44:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:54,689 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7695 transitions. [2021-06-01 16:44:54,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:54,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7695 transitions. [2021-06-01 16:44:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:54,692 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:54,692 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:54,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-01 16:44:54,692 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:54,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:54,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1808430577, now seen corresponding path program 110 times [2021-06-01 16:44:54,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:54,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117663668] [2021-06-01 16:44:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:55,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:55,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117663668] [2021-06-01 16:44:55,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117663668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:55,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:55,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:55,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74634136] [2021-06-01 16:44:55,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:55,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:55,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:55,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:55,374 INFO L87 Difference]: Start difference. First operand 2982 states and 7695 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:44:57,802 INFO L93 Difference]: Finished difference Result 3260 states and 8272 transitions. [2021-06-01 16:44:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:44:57,802 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:44:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:44:57,805 INFO L225 Difference]: With dead ends: 3260 [2021-06-01 16:44:57,805 INFO L226 Difference]: Without dead ends: 3092 [2021-06-01 16:44:57,806 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2174.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:44:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-06-01 16:44:57,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 2974. [2021-06-01 16:44:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.580894719138917) internal successors, (7673), 2973 states have internal predecessors, (7673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7673 transitions. [2021-06-01 16:44:57,835 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7673 transitions. Word has length 119 [2021-06-01 16:44:57,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:44:57,835 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7673 transitions. [2021-06-01 16:44:57,835 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:57,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7673 transitions. [2021-06-01 16:44:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:44:57,837 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:44:57,837 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:44:57,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-01 16:44:57,838 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:44:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:44:57,838 INFO L82 PathProgramCache]: Analyzing trace with hash -930245393, now seen corresponding path program 111 times [2021-06-01 16:44:57,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:44:57,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952001636] [2021-06-01 16:44:57,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:44:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:44:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:44:58,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:44:58,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952001636] [2021-06-01 16:44:58,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952001636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:44:58,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:44:58,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:44:58,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609701155] [2021-06-01 16:44:58,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:44:58,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:44:58,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:44:58,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:44:58,491 INFO L87 Difference]: Start difference. First operand 2974 states and 7673 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:44:59,866 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:45:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:01,005 INFO L93 Difference]: Finished difference Result 3293 states and 8348 transitions. [2021-06-01 16:45:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:45:01,005 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:01,008 INFO L225 Difference]: With dead ends: 3293 [2021-06-01 16:45:01,008 INFO L226 Difference]: Without dead ends: 3146 [2021-06-01 16:45:01,008 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2306.7ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:45:01,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2021-06-01 16:45:01,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 2982. [2021-06-01 16:45:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.580006709158001) internal successors, (7691), 2981 states have internal predecessors, (7691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7691 transitions. [2021-06-01 16:45:01,037 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7691 transitions. Word has length 119 [2021-06-01 16:45:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:01,037 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7691 transitions. [2021-06-01 16:45:01,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:01,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7691 transitions. [2021-06-01 16:45:01,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:01,039 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:01,040 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:01,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-01 16:45:01,040 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:01,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:01,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1049606411, now seen corresponding path program 112 times [2021-06-01 16:45:01,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:01,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719552592] [2021-06-01 16:45:01,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:01,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:01,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719552592] [2021-06-01 16:45:01,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719552592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:01,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:01,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:01,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529677804] [2021-06-01 16:45:01,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:01,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:01,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:01,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:01,768 INFO L87 Difference]: Start difference. First operand 2982 states and 7691 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:04,475 INFO L93 Difference]: Finished difference Result 3306 states and 8376 transitions. [2021-06-01 16:45:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:45:04,476 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:04,478 INFO L225 Difference]: With dead ends: 3306 [2021-06-01 16:45:04,478 INFO L226 Difference]: Without dead ends: 3144 [2021-06-01 16:45:04,478 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2447.5ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:45:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-06-01 16:45:04,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2980. [2021-06-01 16:45:04,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.580060422960725) internal successors, (7686), 2979 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7686 transitions. [2021-06-01 16:45:04,507 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7686 transitions. Word has length 119 [2021-06-01 16:45:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:04,507 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7686 transitions. [2021-06-01 16:45:04,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:04,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7686 transitions. [2021-06-01 16:45:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:04,509 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:04,509 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:04,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-01 16:45:04,510 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash -260017391, now seen corresponding path program 113 times [2021-06-01 16:45:04,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:04,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570372060] [2021-06-01 16:45:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:05,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:05,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570372060] [2021-06-01 16:45:05,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570372060] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:05,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:05,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:05,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084575843] [2021-06-01 16:45:05,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:05,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:05,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:05,199 INFO L87 Difference]: Start difference. First operand 2980 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:07,288 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-06-01 16:45:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:08,073 INFO L93 Difference]: Finished difference Result 3539 states and 8837 transitions. [2021-06-01 16:45:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:45:08,074 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:08,076 INFO L225 Difference]: With dead ends: 3539 [2021-06-01 16:45:08,076 INFO L226 Difference]: Without dead ends: 3310 [2021-06-01 16:45:08,077 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2506.9ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:45:08,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2021-06-01 16:45:08,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2956. [2021-06-01 16:45:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2955 states have (on average 2.579357021996616) internal successors, (7622), 2955 states have internal predecessors, (7622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 7622 transitions. [2021-06-01 16:45:08,105 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 7622 transitions. Word has length 119 [2021-06-01 16:45:08,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:08,105 INFO L482 AbstractCegarLoop]: Abstraction has 2956 states and 7622 transitions. [2021-06-01 16:45:08,105 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:08,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 7622 transitions. [2021-06-01 16:45:08,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:08,107 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:08,107 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:08,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-01 16:45:08,108 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:08,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:08,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1368960213, now seen corresponding path program 3 times [2021-06-01 16:45:08,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:08,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078203223] [2021-06-01 16:45:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:08,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:08,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078203223] [2021-06-01 16:45:08,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078203223] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:08,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:08,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:45:08,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925244405] [2021-06-01 16:45:08,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:45:08,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:08,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:45:08,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:45:08,258 INFO L87 Difference]: Start difference. First operand 2956 states and 7622 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:08,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:08,518 INFO L93 Difference]: Finished difference Result 3247 states and 8153 transitions. [2021-06-01 16:45:08,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-01 16:45:08,518 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:08,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:08,521 INFO L225 Difference]: With dead ends: 3247 [2021-06-01 16:45:08,521 INFO L226 Difference]: Without dead ends: 3247 [2021-06-01 16:45:08,521 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 206.9ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-06-01 16:45:08,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2021-06-01 16:45:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3024. [2021-06-01 16:45:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 3023 states have (on average 2.5689712206417465) internal successors, (7766), 3023 states have internal predecessors, (7766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 7766 transitions. [2021-06-01 16:45:08,551 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 7766 transitions. Word has length 119 [2021-06-01 16:45:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:08,551 INFO L482 AbstractCegarLoop]: Abstraction has 3024 states and 7766 transitions. [2021-06-01 16:45:08,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:08,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 7766 transitions. [2021-06-01 16:45:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:08,553 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:08,553 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:08,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-01 16:45:08,554 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:08,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:08,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1142977447, now seen corresponding path program 114 times [2021-06-01 16:45:08,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:08,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629613832] [2021-06-01 16:45:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:09,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:09,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629613832] [2021-06-01 16:45:09,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629613832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:09,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:09,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:09,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962057944] [2021-06-01 16:45:09,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:09,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:09,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:09,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:09,183 INFO L87 Difference]: Start difference. First operand 3024 states and 7766 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:10,462 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-01 16:45:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:11,304 INFO L93 Difference]: Finished difference Result 3327 states and 8369 transitions. [2021-06-01 16:45:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:45:11,304 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:11,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:11,307 INFO L225 Difference]: With dead ends: 3327 [2021-06-01 16:45:11,307 INFO L226 Difference]: Without dead ends: 3085 [2021-06-01 16:45:11,308 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1969.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:45:11,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-01 16:45:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2969. [2021-06-01 16:45:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2968 states have (on average 2.5785040431266846) internal successors, (7653), 2968 states have internal predecessors, (7653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 7653 transitions. [2021-06-01 16:45:11,336 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 7653 transitions. Word has length 119 [2021-06-01 16:45:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:11,336 INFO L482 AbstractCegarLoop]: Abstraction has 2969 states and 7653 transitions. [2021-06-01 16:45:11,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 7653 transitions. [2021-06-01 16:45:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:11,338 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:11,338 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:11,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-01 16:45:11,339 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:11,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:11,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1486449587, now seen corresponding path program 115 times [2021-06-01 16:45:11,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:11,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929511729] [2021-06-01 16:45:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:11,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:11,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929511729] [2021-06-01 16:45:11,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929511729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:11,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:11,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:11,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112895484] [2021-06-01 16:45:11,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:11,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:11,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:11,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:11,952 INFO L87 Difference]: Start difference. First operand 2969 states and 7653 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:13,146 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-01 16:45:13,353 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-01 16:45:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:14,213 INFO L93 Difference]: Finished difference Result 3281 states and 8272 transitions. [2021-06-01 16:45:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:45:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:14,216 INFO L225 Difference]: With dead ends: 3281 [2021-06-01 16:45:14,216 INFO L226 Difference]: Without dead ends: 3058 [2021-06-01 16:45:14,216 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1995.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:45:14,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-06-01 16:45:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2983. [2021-06-01 16:45:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.573775989268947) internal successors, (7675), 2982 states have internal predecessors, (7675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7675 transitions. [2021-06-01 16:45:14,244 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7675 transitions. Word has length 119 [2021-06-01 16:45:14,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:14,244 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7675 transitions. [2021-06-01 16:45:14,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:14,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7675 transitions. [2021-06-01 16:45:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:14,246 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:14,246 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:14,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-01 16:45:14,247 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:14,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2005810357, now seen corresponding path program 116 times [2021-06-01 16:45:14,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:14,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525490049] [2021-06-01 16:45:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:14,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:14,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525490049] [2021-06-01 16:45:14,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525490049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:14,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:14,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:14,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451964184] [2021-06-01 16:45:14,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:14,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:14,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:14,888 INFO L87 Difference]: Start difference. First operand 2983 states and 7675 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:16,201 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:45:17,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:17,220 INFO L93 Difference]: Finished difference Result 3263 states and 8232 transitions. [2021-06-01 16:45:17,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:45:17,220 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:17,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:17,223 INFO L225 Difference]: With dead ends: 3263 [2021-06-01 16:45:17,223 INFO L226 Difference]: Without dead ends: 3050 [2021-06-01 16:45:17,224 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2174.8ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:45:17,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2021-06-01 16:45:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2986. [2021-06-01 16:45:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2985 states have (on average 2.5721943048576215) internal successors, (7678), 2985 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 7678 transitions. [2021-06-01 16:45:17,252 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 7678 transitions. Word has length 119 [2021-06-01 16:45:17,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:17,252 INFO L482 AbstractCegarLoop]: Abstraction has 2986 states and 7678 transitions. [2021-06-01 16:45:17,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 7678 transitions. [2021-06-01 16:45:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:17,254 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:17,254 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:17,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-01 16:45:17,254 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:17,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:17,254 INFO L82 PathProgramCache]: Analyzing trace with hash -309305135, now seen corresponding path program 117 times [2021-06-01 16:45:17,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:17,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509613245] [2021-06-01 16:45:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:17,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:17,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509613245] [2021-06-01 16:45:17,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509613245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:17,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:17,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:17,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37723264] [2021-06-01 16:45:17,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:17,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:17,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:17,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:17,911 INFO L87 Difference]: Start difference. First operand 2986 states and 7678 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:20,271 INFO L93 Difference]: Finished difference Result 3345 states and 8401 transitions. [2021-06-01 16:45:20,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:45:20,272 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:20,275 INFO L225 Difference]: With dead ends: 3345 [2021-06-01 16:45:20,275 INFO L226 Difference]: Without dead ends: 3097 [2021-06-01 16:45:20,275 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2104.0ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:45:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-06-01 16:45:20,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2967. [2021-06-01 16:45:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.5755225893459204) internal successors, (7639), 2966 states have internal predecessors, (7639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 7639 transitions. [2021-06-01 16:45:20,304 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 7639 transitions. Word has length 119 [2021-06-01 16:45:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:20,304 INFO L482 AbstractCegarLoop]: Abstraction has 2967 states and 7639 transitions. [2021-06-01 16:45:20,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 7639 transitions. [2021-06-01 16:45:20,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:20,306 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:20,306 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:20,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-01 16:45:20,306 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:20,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:20,306 INFO L82 PathProgramCache]: Analyzing trace with hash -268260227, now seen corresponding path program 118 times [2021-06-01 16:45:20,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:20,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74113276] [2021-06-01 16:45:20,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:20,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:20,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74113276] [2021-06-01 16:45:20,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74113276] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:20,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:20,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:20,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44865100] [2021-06-01 16:45:20,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:20,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:20,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:20,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:20,918 INFO L87 Difference]: Start difference. First operand 2967 states and 7639 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:22,243 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-01 16:45:23,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:23,097 INFO L93 Difference]: Finished difference Result 3244 states and 8181 transitions. [2021-06-01 16:45:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:45:23,097 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:23,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:23,099 INFO L225 Difference]: With dead ends: 3244 [2021-06-01 16:45:23,099 INFO L226 Difference]: Without dead ends: 3015 [2021-06-01 16:45:23,099 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1907.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:45:23,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-06-01 16:45:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2961. [2021-06-01 16:45:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2960 states have (on average 2.5763513513513514) internal successors, (7626), 2960 states have internal predecessors, (7626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 7626 transitions. [2021-06-01 16:45:23,127 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 7626 transitions. Word has length 119 [2021-06-01 16:45:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:23,127 INFO L482 AbstractCegarLoop]: Abstraction has 2961 states and 7626 transitions. [2021-06-01 16:45:23,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 7626 transitions. [2021-06-01 16:45:23,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:23,129 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:23,129 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:23,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-01 16:45:23,129 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:23,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:23,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1798328559, now seen corresponding path program 119 times [2021-06-01 16:45:23,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:23,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546550845] [2021-06-01 16:45:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:23,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:23,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:23,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546550845] [2021-06-01 16:45:23,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546550845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:23,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:23,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:23,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389470034] [2021-06-01 16:45:23,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:23,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:23,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:23,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:23,726 INFO L87 Difference]: Start difference. First operand 2961 states and 7626 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:24,895 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-01 16:45:25,101 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-01 16:45:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:25,999 INFO L93 Difference]: Finished difference Result 3213 states and 8115 transitions. [2021-06-01 16:45:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:45:26,000 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:26,002 INFO L225 Difference]: With dead ends: 3213 [2021-06-01 16:45:26,002 INFO L226 Difference]: Without dead ends: 2990 [2021-06-01 16:45:26,002 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1991.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:45:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-06-01 16:45:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2938. [2021-06-01 16:45:26,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2937 states have (on average 2.5757575757575757) internal successors, (7565), 2937 states have internal predecessors, (7565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:26,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 7565 transitions. [2021-06-01 16:45:26,030 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 7565 transitions. Word has length 119 [2021-06-01 16:45:26,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:26,030 INFO L482 AbstractCegarLoop]: Abstraction has 2938 states and 7565 transitions. [2021-06-01 16:45:26,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 7565 transitions. [2021-06-01 16:45:26,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:26,032 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:26,032 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:26,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-01 16:45:26,032 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:26,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1370230153, now seen corresponding path program 120 times [2021-06-01 16:45:26,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:26,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874781036] [2021-06-01 16:45:26,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:26,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:26,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874781036] [2021-06-01 16:45:26,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874781036] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:26,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:26,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:26,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443044372] [2021-06-01 16:45:26,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:26,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:26,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:26,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:26,610 INFO L87 Difference]: Start difference. First operand 2938 states and 7565 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:27,899 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:45:28,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:28,750 INFO L93 Difference]: Finished difference Result 3203 states and 8089 transitions. [2021-06-01 16:45:28,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:45:28,750 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:28,752 INFO L225 Difference]: With dead ends: 3203 [2021-06-01 16:45:28,752 INFO L226 Difference]: Without dead ends: 2977 [2021-06-01 16:45:28,752 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1882.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:45:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-06-01 16:45:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2939. [2021-06-01 16:45:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 2.572498298162015) internal successors, (7558), 2938 states have internal predecessors, (7558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 7558 transitions. [2021-06-01 16:45:28,779 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 7558 transitions. Word has length 119 [2021-06-01 16:45:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:28,779 INFO L482 AbstractCegarLoop]: Abstraction has 2939 states and 7558 transitions. [2021-06-01 16:45:28,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 7558 transitions. [2021-06-01 16:45:28,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:28,781 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:28,782 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:28,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-01 16:45:28,782 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:28,782 INFO L82 PathProgramCache]: Analyzing trace with hash -2026929395, now seen corresponding path program 121 times [2021-06-01 16:45:28,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:28,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588479600] [2021-06-01 16:45:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:29,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:29,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588479600] [2021-06-01 16:45:29,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588479600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:29,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:29,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:29,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727666005] [2021-06-01 16:45:29,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:29,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:29,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:29,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:29,368 INFO L87 Difference]: Start difference. First operand 2939 states and 7558 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:31,597 INFO L93 Difference]: Finished difference Result 3282 states and 8239 transitions. [2021-06-01 16:45:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:45:31,597 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:31,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:31,599 INFO L225 Difference]: With dead ends: 3282 [2021-06-01 16:45:31,599 INFO L226 Difference]: Without dead ends: 3048 [2021-06-01 16:45:31,599 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1962.8ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:45:31,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2021-06-01 16:45:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2937. [2021-06-01 16:45:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.5705040871934606) internal successors, (7547), 2936 states have internal predecessors, (7547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7547 transitions. [2021-06-01 16:45:31,627 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7547 transitions. Word has length 119 [2021-06-01 16:45:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:31,627 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7547 transitions. [2021-06-01 16:45:31,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7547 transitions. [2021-06-01 16:45:31,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:31,629 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:31,629 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:31,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-01 16:45:31,629 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:31,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:31,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1854269505, now seen corresponding path program 122 times [2021-06-01 16:45:31,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:31,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522043927] [2021-06-01 16:45:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:32,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:32,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522043927] [2021-06-01 16:45:32,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522043927] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:32,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:32,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:32,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822323230] [2021-06-01 16:45:32,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:32,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:32,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:32,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:32,221 INFO L87 Difference]: Start difference. First operand 2937 states and 7547 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:33,563 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:45:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:34,483 INFO L93 Difference]: Finished difference Result 3149 states and 7950 transitions. [2021-06-01 16:45:34,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:45:34,484 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:34,486 INFO L225 Difference]: With dead ends: 3149 [2021-06-01 16:45:34,486 INFO L226 Difference]: Without dead ends: 2826 [2021-06-01 16:45:34,486 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1993.6ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:45:34,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2021-06-01 16:45:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2794. [2021-06-01 16:45:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 2.594343000358038) internal successors, (7246), 2793 states have internal predecessors, (7246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 7246 transitions. [2021-06-01 16:45:34,513 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 7246 transitions. Word has length 119 [2021-06-01 16:45:34,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:34,513 INFO L482 AbstractCegarLoop]: Abstraction has 2794 states and 7246 transitions. [2021-06-01 16:45:34,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 7246 transitions. [2021-06-01 16:45:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:34,515 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:34,515 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:34,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-01 16:45:34,515 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash 817958827, now seen corresponding path program 123 times [2021-06-01 16:45:34,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:34,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751409850] [2021-06-01 16:45:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:34,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:34,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751409850] [2021-06-01 16:45:34,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751409850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:34,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:34,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:45:34,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727056425] [2021-06-01 16:45:34,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:45:34,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:34,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:45:34,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:45:34,697 INFO L87 Difference]: Start difference. First operand 2794 states and 7246 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:34,964 INFO L93 Difference]: Finished difference Result 3481 states and 8729 transitions. [2021-06-01 16:45:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:45:34,964 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:34,966 INFO L225 Difference]: With dead ends: 3481 [2021-06-01 16:45:34,966 INFO L226 Difference]: Without dead ends: 3481 [2021-06-01 16:45:34,967 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 260.3ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:45:34,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-06-01 16:45:34,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 2850. [2021-06-01 16:45:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.5805545805545806) internal successors, (7352), 2849 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:34,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7352 transitions. [2021-06-01 16:45:34,995 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7352 transitions. Word has length 119 [2021-06-01 16:45:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:34,995 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7352 transitions. [2021-06-01 16:45:34,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7352 transitions. [2021-06-01 16:45:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:34,997 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:34,997 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:34,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-01 16:45:34,997 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:34,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:34,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2038332403, now seen corresponding path program 124 times [2021-06-01 16:45:34,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:34,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428422461] [2021-06-01 16:45:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:35,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:35,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428422461] [2021-06-01 16:45:35,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428422461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:35,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:35,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:35,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612524986] [2021-06-01 16:45:35,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:35,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:35,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:35,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:35,571 INFO L87 Difference]: Start difference. First operand 2850 states and 7352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:38,690 INFO L93 Difference]: Finished difference Result 4555 states and 11592 transitions. [2021-06-01 16:45:38,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:45:38,690 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:38,694 INFO L225 Difference]: With dead ends: 4555 [2021-06-01 16:45:38,694 INFO L226 Difference]: Without dead ends: 4360 [2021-06-01 16:45:38,694 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2508.4ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:45:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2021-06-01 16:45:38,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 3366. [2021-06-01 16:45:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3365 states have (on average 2.613372956909361) internal successors, (8794), 3365 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 8794 transitions. [2021-06-01 16:45:38,730 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 8794 transitions. Word has length 119 [2021-06-01 16:45:38,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:38,730 INFO L482 AbstractCegarLoop]: Abstraction has 3366 states and 8794 transitions. [2021-06-01 16:45:38,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 8794 transitions. [2021-06-01 16:45:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:38,733 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:38,733 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:38,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-01 16:45:38,733 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:38,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:38,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1018645257, now seen corresponding path program 4 times [2021-06-01 16:45:38,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:38,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355883629] [2021-06-01 16:45:38,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:39,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:39,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355883629] [2021-06-01 16:45:39,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355883629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:39,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:39,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-01 16:45:39,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968012249] [2021-06-01 16:45:39,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-01 16:45:39,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:39,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-01 16:45:39,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-06-01 16:45:39,187 INFO L87 Difference]: Start difference. First operand 3366 states and 8794 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:41,140 INFO L93 Difference]: Finished difference Result 3704 states and 9432 transitions. [2021-06-01 16:45:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-01 16:45:41,141 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:41,144 INFO L225 Difference]: With dead ends: 3704 [2021-06-01 16:45:41,144 INFO L226 Difference]: Without dead ends: 3623 [2021-06-01 16:45:41,144 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1492.5ms TimeCoverageRelationStatistics Valid=736, Invalid=2344, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:45:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2021-06-01 16:45:41,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3351. [2021-06-01 16:45:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.6292537313432836) internal successors, (8808), 3350 states have internal predecessors, (8808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 8808 transitions. [2021-06-01 16:45:41,177 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 8808 transitions. Word has length 119 [2021-06-01 16:45:41,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:41,177 INFO L482 AbstractCegarLoop]: Abstraction has 3351 states and 8808 transitions. [2021-06-01 16:45:41,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 8808 transitions. [2021-06-01 16:45:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:41,180 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:41,180 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:41,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-01 16:45:41,180 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:41,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:41,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1034485205, now seen corresponding path program 125 times [2021-06-01 16:45:41,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:41,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111277213] [2021-06-01 16:45:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:41,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:41,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111277213] [2021-06-01 16:45:41,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111277213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:41,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:41,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:41,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297292818] [2021-06-01 16:45:41,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:41,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:41,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:41,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:41,776 INFO L87 Difference]: Start difference. First operand 3351 states and 8808 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:44,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:44,558 INFO L93 Difference]: Finished difference Result 4631 states and 12019 transitions. [2021-06-01 16:45:44,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:45:44,559 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:44,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:44,561 INFO L225 Difference]: With dead ends: 4631 [2021-06-01 16:45:44,561 INFO L226 Difference]: Without dead ends: 4240 [2021-06-01 16:45:44,562 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2502.3ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:45:44,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2021-06-01 16:45:44,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 3411. [2021-06-01 16:45:44,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3410 states have (on average 2.6146627565982405) internal successors, (8916), 3410 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:44,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 8916 transitions. [2021-06-01 16:45:44,595 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 8916 transitions. Word has length 119 [2021-06-01 16:45:44,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:44,595 INFO L482 AbstractCegarLoop]: Abstraction has 3411 states and 8916 transitions. [2021-06-01 16:45:44,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 8916 transitions. [2021-06-01 16:45:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:44,598 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:44,598 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:44,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-01 16:45:44,598 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:44,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:44,598 INFO L82 PathProgramCache]: Analyzing trace with hash 173940159, now seen corresponding path program 126 times [2021-06-01 16:45:44,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:44,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518811790] [2021-06-01 16:45:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:45,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:45,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518811790] [2021-06-01 16:45:45,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518811790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:45,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:45,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:45,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352479173] [2021-06-01 16:45:45,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:45,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:45,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:45,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:45,191 INFO L87 Difference]: Start difference. First operand 3411 states and 8916 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:48,175 INFO L93 Difference]: Finished difference Result 4346 states and 11212 transitions. [2021-06-01 16:45:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-01 16:45:48,175 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:48,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:48,178 INFO L225 Difference]: With dead ends: 4346 [2021-06-01 16:45:48,178 INFO L226 Difference]: Without dead ends: 3916 [2021-06-01 16:45:48,179 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2651.6ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-06-01 16:45:48,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-06-01 16:45:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3087. [2021-06-01 16:45:48,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 3086 states have (on average 2.6085547634478288) internal successors, (8050), 3086 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 8050 transitions. [2021-06-01 16:45:48,210 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 8050 transitions. Word has length 119 [2021-06-01 16:45:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:48,210 INFO L482 AbstractCegarLoop]: Abstraction has 3087 states and 8050 transitions. [2021-06-01 16:45:48,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:48,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 8050 transitions. [2021-06-01 16:45:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:48,212 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:48,212 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:48,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-01 16:45:48,212 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:48,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:48,213 INFO L82 PathProgramCache]: Analyzing trace with hash -431161445, now seen corresponding path program 127 times [2021-06-01 16:45:48,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:48,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954260418] [2021-06-01 16:45:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:48,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:48,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954260418] [2021-06-01 16:45:48,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954260418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:48,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:48,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:48,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921966165] [2021-06-01 16:45:48,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:48,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:48,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:48,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:48,796 INFO L87 Difference]: Start difference. First operand 3087 states and 8050 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:49,695 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-01 16:45:50,311 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:45:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:51,726 INFO L93 Difference]: Finished difference Result 3683 states and 9433 transitions. [2021-06-01 16:45:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:45:51,726 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:51,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:51,729 INFO L225 Difference]: With dead ends: 3683 [2021-06-01 16:45:51,729 INFO L226 Difference]: Without dead ends: 3499 [2021-06-01 16:45:51,730 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2517.2ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:45:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2021-06-01 16:45:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 3083. [2021-06-01 16:45:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 2.6080467229072033) internal successors, (8038), 3082 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 8038 transitions. [2021-06-01 16:45:51,761 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 8038 transitions. Word has length 119 [2021-06-01 16:45:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:51,761 INFO L482 AbstractCegarLoop]: Abstraction has 3083 states and 8038 transitions. [2021-06-01 16:45:51,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 8038 transitions. [2021-06-01 16:45:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:51,763 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:51,763 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:51,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-01 16:45:51,763 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:51,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:51,764 INFO L82 PathProgramCache]: Analyzing trace with hash 273153869, now seen corresponding path program 128 times [2021-06-01 16:45:51,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:51,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116712490] [2021-06-01 16:45:51,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:52,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:52,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116712490] [2021-06-01 16:45:52,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116712490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:52,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:52,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:52,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804731633] [2021-06-01 16:45:52,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:52,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:52,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:52,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:52,361 INFO L87 Difference]: Start difference. First operand 3083 states and 8038 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:53,759 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:45:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:55,122 INFO L93 Difference]: Finished difference Result 3561 states and 9084 transitions. [2021-06-01 16:45:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:45:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:55,125 INFO L225 Difference]: With dead ends: 3561 [2021-06-01 16:45:55,125 INFO L226 Difference]: Without dead ends: 3347 [2021-06-01 16:45:55,125 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2383.5ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:45:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2021-06-01 16:45:55,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3079. [2021-06-01 16:45:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6062378167641325) internal successors, (8022), 3078 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8022 transitions. [2021-06-01 16:45:55,167 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8022 transitions. Word has length 119 [2021-06-01 16:45:55,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:55,167 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8022 transitions. [2021-06-01 16:45:55,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8022 transitions. [2021-06-01 16:45:55,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:55,169 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:55,170 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:55,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-01 16:45:55,170 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:55,170 INFO L82 PathProgramCache]: Analyzing trace with hash -159746609, now seen corresponding path program 129 times [2021-06-01 16:45:55,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:55,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561605379] [2021-06-01 16:45:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:55,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:55,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561605379] [2021-06-01 16:45:55,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561605379] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:55,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:55,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:55,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770951635] [2021-06-01 16:45:55,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:55,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:55,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:55,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:55,744 INFO L87 Difference]: Start difference. First operand 3079 states and 8022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:45:58,248 INFO L93 Difference]: Finished difference Result 3687 states and 9494 transitions. [2021-06-01 16:45:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:45:58,248 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:45:58,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:45:58,251 INFO L225 Difference]: With dead ends: 3687 [2021-06-01 16:45:58,251 INFO L226 Difference]: Without dead ends: 3557 [2021-06-01 16:45:58,251 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2180.0ms TimeCoverageRelationStatistics Valid=487, Invalid=2483, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:45:58,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2021-06-01 16:45:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3247. [2021-06-01 16:45:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.6001232285890326) internal successors, (8440), 3246 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:58,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8440 transitions. [2021-06-01 16:45:58,283 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8440 transitions. Word has length 119 [2021-06-01 16:45:58,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:45:58,283 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8440 transitions. [2021-06-01 16:45:58,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:45:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8440 transitions. [2021-06-01 16:45:58,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:45:58,285 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:45:58,285 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:45:58,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-01 16:45:58,286 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:45:58,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:45:58,286 INFO L82 PathProgramCache]: Analyzing trace with hash 844100589, now seen corresponding path program 130 times [2021-06-01 16:45:58,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:45:58,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508795863] [2021-06-01 16:45:58,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:45:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:45:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:45:58,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:45:58,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508795863] [2021-06-01 16:45:58,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508795863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:45:58,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:45:58,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:45:58,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330817683] [2021-06-01 16:45:58,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:45:58,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:45:58,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:45:58,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:45:58,871 INFO L87 Difference]: Start difference. First operand 3247 states and 8440 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:01,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:01,371 INFO L93 Difference]: Finished difference Result 3861 states and 9900 transitions. [2021-06-01 16:46:01,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:46:01,371 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:01,374 INFO L225 Difference]: With dead ends: 3861 [2021-06-01 16:46:01,374 INFO L226 Difference]: Without dead ends: 3610 [2021-06-01 16:46:01,375 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2207.4ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:46:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2021-06-01 16:46:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3283. [2021-06-01 16:46:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.5898842169408898) internal successors, (8500), 3282 states have internal predecessors, (8500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:01,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8500 transitions. [2021-06-01 16:46:01,406 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8500 transitions. Word has length 119 [2021-06-01 16:46:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:01,406 INFO L482 AbstractCegarLoop]: Abstraction has 3283 states and 8500 transitions. [2021-06-01 16:46:01,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8500 transitions. [2021-06-01 16:46:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:01,409 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:01,409 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:01,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-01 16:46:01,409 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:01,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:01,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2052525953, now seen corresponding path program 131 times [2021-06-01 16:46:01,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:01,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737683824] [2021-06-01 16:46:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:02,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:02,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737683824] [2021-06-01 16:46:02,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737683824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:02,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:02,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:02,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059874214] [2021-06-01 16:46:02,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:02,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:02,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:02,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:02,005 INFO L87 Difference]: Start difference. First operand 3283 states and 8500 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:04,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:04,537 INFO L93 Difference]: Finished difference Result 3692 states and 9443 transitions. [2021-06-01 16:46:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:46:04,537 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:04,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:04,541 INFO L225 Difference]: With dead ends: 3692 [2021-06-01 16:46:04,541 INFO L226 Difference]: Without dead ends: 3406 [2021-06-01 16:46:04,541 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2260.3ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:46:04,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-06-01 16:46:04,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3079. [2021-06-01 16:46:04,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6023391812865495) internal successors, (8010), 3078 states have internal predecessors, (8010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8010 transitions. [2021-06-01 16:46:04,571 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8010 transitions. Word has length 119 [2021-06-01 16:46:04,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:04,571 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8010 transitions. [2021-06-01 16:46:04,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8010 transitions. [2021-06-01 16:46:04,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:04,573 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:04,573 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:04,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-01 16:46:04,574 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:04,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:04,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1447424349, now seen corresponding path program 132 times [2021-06-01 16:46:04,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:04,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769105164] [2021-06-01 16:46:04,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:05,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:05,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:05,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769105164] [2021-06-01 16:46:05,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769105164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:05,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:05,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:05,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783948219] [2021-06-01 16:46:05,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:05,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:05,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:05,150 INFO L87 Difference]: Start difference. First operand 3079 states and 8010 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:07,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:07,585 INFO L93 Difference]: Finished difference Result 3437 states and 8851 transitions. [2021-06-01 16:46:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:46:07,585 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:07,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:07,588 INFO L225 Difference]: With dead ends: 3437 [2021-06-01 16:46:07,589 INFO L226 Difference]: Without dead ends: 3293 [2021-06-01 16:46:07,589 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2217.8ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:46:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-06-01 16:46:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3067. [2021-06-01 16:46:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3066 states have (on average 2.604696673189824) internal successors, (7986), 3066 states have internal predecessors, (7986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 7986 transitions. [2021-06-01 16:46:07,620 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 7986 transitions. Word has length 119 [2021-06-01 16:46:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:07,620 INFO L482 AbstractCegarLoop]: Abstraction has 3067 states and 7986 transitions. [2021-06-01 16:46:07,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 7986 transitions. [2021-06-01 16:46:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:07,622 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:07,623 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:07,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-01 16:46:07,623 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:07,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:07,623 INFO L82 PathProgramCache]: Analyzing trace with hash -54833173, now seen corresponding path program 133 times [2021-06-01 16:46:07,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:07,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773537968] [2021-06-01 16:46:07,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:08,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:08,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773537968] [2021-06-01 16:46:08,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773537968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:08,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:08,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:08,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390789141] [2021-06-01 16:46:08,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:08,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:08,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:08,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:08,192 INFO L87 Difference]: Start difference. First operand 3067 states and 7986 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:10,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:10,659 INFO L93 Difference]: Finished difference Result 4134 states and 10644 transitions. [2021-06-01 16:46:10,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:46:10,660 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:10,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:10,663 INFO L225 Difference]: With dead ends: 4134 [2021-06-01 16:46:10,663 INFO L226 Difference]: Without dead ends: 4004 [2021-06-01 16:46:10,664 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2099.1ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:46:10,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2021-06-01 16:46:10,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 3211. [2021-06-01 16:46:10,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3210 states have (on average 2.6031152647975078) internal successors, (8356), 3210 states have internal predecessors, (8356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 8356 transitions. [2021-06-01 16:46:10,697 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 8356 transitions. Word has length 119 [2021-06-01 16:46:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:10,697 INFO L482 AbstractCegarLoop]: Abstraction has 3211 states and 8356 transitions. [2021-06-01 16:46:10,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 8356 transitions. [2021-06-01 16:46:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:10,700 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:10,700 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:10,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-01 16:46:10,700 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:10,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:10,700 INFO L82 PathProgramCache]: Analyzing trace with hash 949014025, now seen corresponding path program 134 times [2021-06-01 16:46:10,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:10,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171238751] [2021-06-01 16:46:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:11,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:11,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171238751] [2021-06-01 16:46:11,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171238751] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:11,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:11,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:11,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613674808] [2021-06-01 16:46:11,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:11,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:11,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:11,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:11,300 INFO L87 Difference]: Start difference. First operand 3211 states and 8356 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:13,861 INFO L93 Difference]: Finished difference Result 4308 states and 11050 transitions. [2021-06-01 16:46:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:46:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:13,865 INFO L225 Difference]: With dead ends: 4308 [2021-06-01 16:46:13,865 INFO L226 Difference]: Without dead ends: 4057 [2021-06-01 16:46:13,866 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2205.8ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:46:13,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-06-01 16:46:13,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 3247. [2021-06-01 16:46:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.592729513247073) internal successors, (8416), 3246 states have internal predecessors, (8416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8416 transitions. [2021-06-01 16:46:13,910 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8416 transitions. Word has length 119 [2021-06-01 16:46:13,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:13,910 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8416 transitions. [2021-06-01 16:46:13,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:13,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8416 transitions. [2021-06-01 16:46:13,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:13,912 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:13,912 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:13,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-01 16:46:13,912 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:13,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:13,913 INFO L82 PathProgramCache]: Analyzing trace with hash -2137527907, now seen corresponding path program 135 times [2021-06-01 16:46:13,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:13,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101578245] [2021-06-01 16:46:13,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:14,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:14,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101578245] [2021-06-01 16:46:14,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101578245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:14,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:14,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:14,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784283236] [2021-06-01 16:46:14,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:14,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:14,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:14,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:14,501 INFO L87 Difference]: Start difference. First operand 3247 states and 8416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:17,129 INFO L93 Difference]: Finished difference Result 4139 states and 10593 transitions. [2021-06-01 16:46:17,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:46:17,129 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:17,132 INFO L225 Difference]: With dead ends: 4139 [2021-06-01 16:46:17,132 INFO L226 Difference]: Without dead ends: 3853 [2021-06-01 16:46:17,132 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2286.7ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:46:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2021-06-01 16:46:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3043. [2021-06-01 16:46:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 2.58974358974359) internal successors, (7878), 3042 states have internal predecessors, (7878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 7878 transitions. [2021-06-01 16:46:17,163 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 7878 transitions. Word has length 119 [2021-06-01 16:46:17,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:17,163 INFO L482 AbstractCegarLoop]: Abstraction has 3043 states and 7878 transitions. [2021-06-01 16:46:17,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:17,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 7878 transitions. [2021-06-01 16:46:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:17,165 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:17,165 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:17,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-01 16:46:17,165 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:17,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1480596423, now seen corresponding path program 136 times [2021-06-01 16:46:17,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:17,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869128452] [2021-06-01 16:46:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:17,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:17,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869128452] [2021-06-01 16:46:17,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869128452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:17,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:17,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:17,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208809462] [2021-06-01 16:46:17,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:17,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:17,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:17,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:17,743 INFO L87 Difference]: Start difference. First operand 3043 states and 7878 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:20,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:20,342 INFO L93 Difference]: Finished difference Result 4063 states and 10313 transitions. [2021-06-01 16:46:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:46:20,342 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:20,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:20,345 INFO L225 Difference]: With dead ends: 4063 [2021-06-01 16:46:20,345 INFO L226 Difference]: Without dead ends: 3858 [2021-06-01 16:46:20,345 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 2265.4ms TimeCoverageRelationStatistics Valid=520, Invalid=2786, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:46:20,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-06-01 16:46:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 2983. [2021-06-01 16:46:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.601609657947686) internal successors, (7758), 2982 states have internal predecessors, (7758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:20,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7758 transitions. [2021-06-01 16:46:20,375 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7758 transitions. Word has length 119 [2021-06-01 16:46:20,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:20,375 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7758 transitions. [2021-06-01 16:46:20,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7758 transitions. [2021-06-01 16:46:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:20,377 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:20,377 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:20,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-01 16:46:20,378 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:20,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:20,378 INFO L82 PathProgramCache]: Analyzing trace with hash 198436559, now seen corresponding path program 137 times [2021-06-01 16:46:20,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:20,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237260654] [2021-06-01 16:46:20,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:20,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:20,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237260654] [2021-06-01 16:46:20,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237260654] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:20,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:20,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:20,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848269990] [2021-06-01 16:46:20,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:20,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:20,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:20,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:20,966 INFO L87 Difference]: Start difference. First operand 2983 states and 7758 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:22,323 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-01 16:46:23,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:23,319 INFO L93 Difference]: Finished difference Result 3389 states and 8711 transitions. [2021-06-01 16:46:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:46:23,319 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:23,322 INFO L225 Difference]: With dead ends: 3389 [2021-06-01 16:46:23,322 INFO L226 Difference]: Without dead ends: 3257 [2021-06-01 16:46:23,323 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2164.5ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:46:23,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2021-06-01 16:46:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2985. [2021-06-01 16:46:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 2.6008713136729225) internal successors, (7761), 2984 states have internal predecessors, (7761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 7761 transitions. [2021-06-01 16:46:23,351 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 7761 transitions. Word has length 119 [2021-06-01 16:46:23,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:23,351 INFO L482 AbstractCegarLoop]: Abstraction has 2985 states and 7761 transitions. [2021-06-01 16:46:23,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 7761 transitions. [2021-06-01 16:46:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:23,353 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:23,353 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:23,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-01 16:46:23,353 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:23,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1945454933, now seen corresponding path program 138 times [2021-06-01 16:46:23,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:23,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33617046] [2021-06-01 16:46:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:23,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:23,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33617046] [2021-06-01 16:46:23,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33617046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:23,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:23,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:23,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846741178] [2021-06-01 16:46:23,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:23,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:23,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:23,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:23,943 INFO L87 Difference]: Start difference. First operand 2985 states and 7761 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:26,546 INFO L93 Difference]: Finished difference Result 3566 states and 9064 transitions. [2021-06-01 16:46:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:46:26,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:26,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:26,550 INFO L225 Difference]: With dead ends: 3566 [2021-06-01 16:46:26,550 INFO L226 Difference]: Without dead ends: 3407 [2021-06-01 16:46:26,550 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2275.5ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:46:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2021-06-01 16:46:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 2971. [2021-06-01 16:46:26,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2970 states have (on average 2.604040404040404) internal successors, (7734), 2970 states have internal predecessors, (7734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:26,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 7734 transitions. [2021-06-01 16:46:26,578 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 7734 transitions. Word has length 119 [2021-06-01 16:46:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:26,579 INFO L482 AbstractCegarLoop]: Abstraction has 2971 states and 7734 transitions. [2021-06-01 16:46:26,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 7734 transitions. [2021-06-01 16:46:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:26,581 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:26,581 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:26,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-01 16:46:26,581 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:26,581 INFO L82 PathProgramCache]: Analyzing trace with hash 209238043, now seen corresponding path program 139 times [2021-06-01 16:46:26,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:26,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345160648] [2021-06-01 16:46:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:27,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:27,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:27,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345160648] [2021-06-01 16:46:27,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345160648] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:27,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:27,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:27,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247368325] [2021-06-01 16:46:27,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:27,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:27,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:27,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:27,186 INFO L87 Difference]: Start difference. First operand 2971 states and 7734 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:28,520 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:46:29,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:29,858 INFO L93 Difference]: Finished difference Result 3377 states and 8570 transitions. [2021-06-01 16:46:29,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:46:29,858 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:29,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:29,861 INFO L225 Difference]: With dead ends: 3377 [2021-06-01 16:46:29,861 INFO L226 Difference]: Without dead ends: 3199 [2021-06-01 16:46:29,861 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2375.2ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:46:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-06-01 16:46:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 2979. [2021-06-01 16:46:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2978 states have (on average 2.6017461383478846) internal successors, (7748), 2978 states have internal predecessors, (7748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 7748 transitions. [2021-06-01 16:46:29,899 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 7748 transitions. Word has length 119 [2021-06-01 16:46:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:29,899 INFO L482 AbstractCegarLoop]: Abstraction has 2979 states and 7748 transitions. [2021-06-01 16:46:29,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 7748 transitions. [2021-06-01 16:46:29,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:29,901 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:29,901 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:29,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-01 16:46:29,901 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:29,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:29,901 INFO L82 PathProgramCache]: Analyzing trace with hash 728598813, now seen corresponding path program 140 times [2021-06-01 16:46:29,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:29,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754377097] [2021-06-01 16:46:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:30,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:30,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754377097] [2021-06-01 16:46:30,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754377097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:30,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:30,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:30,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411846036] [2021-06-01 16:46:30,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:30,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:30,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:30,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:30,509 INFO L87 Difference]: Start difference. First operand 2979 states and 7748 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:31,823 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:46:32,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:32,862 INFO L93 Difference]: Finished difference Result 3203 states and 8200 transitions. [2021-06-01 16:46:32,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:46:32,862 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:32,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:32,864 INFO L225 Difference]: With dead ends: 3203 [2021-06-01 16:46:32,864 INFO L226 Difference]: Without dead ends: 3071 [2021-06-01 16:46:32,865 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2114.3ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:46:32,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-06-01 16:46:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2981. [2021-06-01 16:46:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2980 states have (on average 2.6010067114093958) internal successors, (7751), 2980 states have internal predecessors, (7751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 7751 transitions. [2021-06-01 16:46:32,892 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 7751 transitions. Word has length 119 [2021-06-01 16:46:32,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:32,892 INFO L482 AbstractCegarLoop]: Abstraction has 2981 states and 7751 transitions. [2021-06-01 16:46:32,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 7751 transitions. [2021-06-01 16:46:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:32,894 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:32,894 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:32,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-01 16:46:32,894 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:32,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:32,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1586516679, now seen corresponding path program 141 times [2021-06-01 16:46:32,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:32,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765092351] [2021-06-01 16:46:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:33,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:33,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765092351] [2021-06-01 16:46:33,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765092351] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:33,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:33,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:33,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251292276] [2021-06-01 16:46:33,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:33,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:33,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:33,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:33,531 INFO L87 Difference]: Start difference. First operand 2981 states and 7751 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:36,096 INFO L93 Difference]: Finished difference Result 3370 states and 8528 transitions. [2021-06-01 16:46:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:46:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:36,098 INFO L225 Difference]: With dead ends: 3370 [2021-06-01 16:46:36,099 INFO L226 Difference]: Without dead ends: 3181 [2021-06-01 16:46:36,099 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2318.7ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:46:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2021-06-01 16:46:36,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2937. [2021-06-01 16:46:36,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.6106948228882834) internal successors, (7665), 2936 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7665 transitions. [2021-06-01 16:46:36,126 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7665 transitions. Word has length 119 [2021-06-01 16:46:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:36,126 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7665 transitions. [2021-06-01 16:46:36,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7665 transitions. [2021-06-01 16:46:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:36,129 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:36,129 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:36,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-01 16:46:36,129 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:36,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:36,129 INFO L82 PathProgramCache]: Analyzing trace with hash -805736737, now seen corresponding path program 142 times [2021-06-01 16:46:36,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:36,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343770741] [2021-06-01 16:46:36,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:36,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:36,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343770741] [2021-06-01 16:46:36,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343770741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:36,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:36,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:46:36,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475673538] [2021-06-01 16:46:36,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:46:36,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:36,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:46:36,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:46:36,363 INFO L87 Difference]: Start difference. First operand 2937 states and 7665 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:36,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:36,820 INFO L93 Difference]: Finished difference Result 3503 states and 8715 transitions. [2021-06-01 16:46:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:46:36,821 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:36,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:36,823 INFO L225 Difference]: With dead ends: 3503 [2021-06-01 16:46:36,823 INFO L226 Difference]: Without dead ends: 3447 [2021-06-01 16:46:36,823 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 379.2ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:46:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-01 16:46:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2749. [2021-06-01 16:46:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.5782387190684135) internal successors, (7085), 2748 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7085 transitions. [2021-06-01 16:46:36,850 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7085 transitions. Word has length 119 [2021-06-01 16:46:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:36,850 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7085 transitions. [2021-06-01 16:46:36,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7085 transitions. [2021-06-01 16:46:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:36,852 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:36,852 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:36,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-01 16:46:36,852 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:36,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1947976541, now seen corresponding path program 143 times [2021-06-01 16:46:36,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:36,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427886030] [2021-06-01 16:46:36,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:37,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:37,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:37,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427886030] [2021-06-01 16:46:37,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427886030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:37,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:37,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:37,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364124843] [2021-06-01 16:46:37,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:37,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:37,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:37,488 INFO L87 Difference]: Start difference. First operand 2749 states and 7085 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:39,654 INFO L93 Difference]: Finished difference Result 2870 states and 7294 transitions. [2021-06-01 16:46:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:46:39,654 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:39,656 INFO L225 Difference]: With dead ends: 2870 [2021-06-01 16:46:39,656 INFO L226 Difference]: Without dead ends: 2765 [2021-06-01 16:46:39,657 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1942.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:46:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-06-01 16:46:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2749. [2021-06-01 16:46:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.576783114992722) internal successors, (7081), 2748 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7081 transitions. [2021-06-01 16:46:39,682 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7081 transitions. Word has length 119 [2021-06-01 16:46:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:39,682 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7081 transitions. [2021-06-01 16:46:39,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7081 transitions. [2021-06-01 16:46:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:39,684 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:39,684 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:39,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-01 16:46:39,684 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:39,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:39,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1952394681, now seen corresponding path program 144 times [2021-06-01 16:46:39,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:39,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884922191] [2021-06-01 16:46:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:40,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:40,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884922191] [2021-06-01 16:46:40,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884922191] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:40,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:40,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:40,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775137065] [2021-06-01 16:46:40,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:40,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:40,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:40,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:40,287 INFO L87 Difference]: Start difference. First operand 2749 states and 7081 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:42,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:42,596 INFO L93 Difference]: Finished difference Result 3076 states and 7832 transitions. [2021-06-01 16:46:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:46:42,596 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:42,598 INFO L225 Difference]: With dead ends: 3076 [2021-06-01 16:46:42,598 INFO L226 Difference]: Without dead ends: 2981 [2021-06-01 16:46:42,599 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1983.4ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:46:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-06-01 16:46:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2893. [2021-06-01 16:46:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.576417704011065) internal successors, (7451), 2892 states have internal predecessors, (7451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7451 transitions. [2021-06-01 16:46:42,625 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7451 transitions. Word has length 119 [2021-06-01 16:46:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:42,626 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7451 transitions. [2021-06-01 16:46:42,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:42,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7451 transitions. [2021-06-01 16:46:42,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:42,628 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:42,628 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:42,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-01 16:46:42,628 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:42,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:42,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1867866313, now seen corresponding path program 145 times [2021-06-01 16:46:42,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:42,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916666338] [2021-06-01 16:46:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:43,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:43,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916666338] [2021-06-01 16:46:43,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916666338] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:43,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:43,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:43,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323108063] [2021-06-01 16:46:43,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:43,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:43,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:43,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:43,231 INFO L87 Difference]: Start difference. First operand 2893 states and 7451 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:45,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:45,635 INFO L93 Difference]: Finished difference Result 3299 states and 8335 transitions. [2021-06-01 16:46:45,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:46:45,635 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:45,638 INFO L225 Difference]: With dead ends: 3299 [2021-06-01 16:46:45,638 INFO L226 Difference]: Without dead ends: 2804 [2021-06-01 16:46:45,638 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2106.9ms TimeCoverageRelationStatistics Valid=502, Invalid=2578, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:46:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-06-01 16:46:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2725. [2021-06-01 16:46:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 2724 states have (on average 2.577459618208517) internal successors, (7021), 2724 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 7021 transitions. [2021-06-01 16:46:45,673 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 7021 transitions. Word has length 119 [2021-06-01 16:46:45,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:45,673 INFO L482 AbstractCegarLoop]: Abstraction has 2725 states and 7021 transitions. [2021-06-01 16:46:45,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 7021 transitions. [2021-06-01 16:46:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:45,675 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:45,675 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:45,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-01 16:46:45,675 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:45,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1423801651, now seen corresponding path program 146 times [2021-06-01 16:46:45,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:45,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584635123] [2021-06-01 16:46:45,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:46,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:46,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584635123] [2021-06-01 16:46:46,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584635123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:46,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:46,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:46,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228536399] [2021-06-01 16:46:46,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:46,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:46,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:46,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:46,268 INFO L87 Difference]: Start difference. First operand 2725 states and 7021 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:47,646 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-01 16:46:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:48,531 INFO L93 Difference]: Finished difference Result 2837 states and 7216 transitions. [2021-06-01 16:46:48,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:46:48,532 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:48,534 INFO L225 Difference]: With dead ends: 2837 [2021-06-01 16:46:48,534 INFO L226 Difference]: Without dead ends: 2680 [2021-06-01 16:46:48,534 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2025.3ms TimeCoverageRelationStatistics Valid=464, Invalid=2292, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:46:48,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2021-06-01 16:46:48,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2665. [2021-06-01 16:46:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.591966966966967) internal successors, (6905), 2664 states have internal predecessors, (6905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6905 transitions. [2021-06-01 16:46:48,558 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6905 transitions. Word has length 119 [2021-06-01 16:46:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:48,558 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6905 transitions. [2021-06-01 16:46:48,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6905 transitions. [2021-06-01 16:46:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:48,560 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:48,560 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:48,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-01 16:46:48,560 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:48,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1148590635, now seen corresponding path program 147 times [2021-06-01 16:46:48,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:48,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653365268] [2021-06-01 16:46:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:49,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:49,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653365268] [2021-06-01 16:46:49,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653365268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:49,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:49,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:49,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700502220] [2021-06-01 16:46:49,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:49,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:49,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:49,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:49,141 INFO L87 Difference]: Start difference. First operand 2665 states and 6905 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:51,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:51,232 INFO L93 Difference]: Finished difference Result 2810 states and 7181 transitions. [2021-06-01 16:46:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:46:51,232 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:51,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:51,234 INFO L225 Difference]: With dead ends: 2810 [2021-06-01 16:46:51,234 INFO L226 Difference]: Without dead ends: 2691 [2021-06-01 16:46:51,234 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1881.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:46:51,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-06-01 16:46:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2649. [2021-06-01 16:46:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2648 states have (on average 2.596299093655589) internal successors, (6875), 2648 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:51,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 6875 transitions. [2021-06-01 16:46:51,258 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 6875 transitions. Word has length 119 [2021-06-01 16:46:51,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:51,258 INFO L482 AbstractCegarLoop]: Abstraction has 2649 states and 6875 transitions. [2021-06-01 16:46:51,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 6875 transitions. [2021-06-01 16:46:51,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:51,260 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:51,260 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:51,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-01 16:46:51,261 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:51,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:51,261 INFO L82 PathProgramCache]: Analyzing trace with hash 2063322351, now seen corresponding path program 148 times [2021-06-01 16:46:51,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:51,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276403764] [2021-06-01 16:46:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:51,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:51,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276403764] [2021-06-01 16:46:51,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276403764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:51,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:51,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:46:51,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897634982] [2021-06-01 16:46:51,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:46:51,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:51,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:46:51,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:46:51,446 INFO L87 Difference]: Start difference. First operand 2649 states and 6875 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:51,704 INFO L93 Difference]: Finished difference Result 5195 states and 13221 transitions. [2021-06-01 16:46:51,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:46:51,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:51,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:51,708 INFO L225 Difference]: With dead ends: 5195 [2021-06-01 16:46:51,708 INFO L226 Difference]: Without dead ends: 5195 [2021-06-01 16:46:51,708 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 251.9ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:46:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2021-06-01 16:46:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 2819. [2021-06-01 16:46:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 2.5691980127750176) internal successors, (7240), 2818 states have internal predecessors, (7240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 7240 transitions. [2021-06-01 16:46:51,741 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 7240 transitions. Word has length 119 [2021-06-01 16:46:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:51,741 INFO L482 AbstractCegarLoop]: Abstraction has 2819 states and 7240 transitions. [2021-06-01 16:46:51,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 7240 transitions. [2021-06-01 16:46:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:51,743 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:51,743 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:51,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-01 16:46:51,743 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:51,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash -792968879, now seen corresponding path program 149 times [2021-06-01 16:46:51,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:51,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064985985] [2021-06-01 16:46:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:52,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:52,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064985985] [2021-06-01 16:46:52,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064985985] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:52,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:52,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:52,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49142964] [2021-06-01 16:46:52,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:52,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:52,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:52,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:52,350 INFO L87 Difference]: Start difference. First operand 2819 states and 7240 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:53,240 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-06-01 16:46:55,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:55,214 INFO L93 Difference]: Finished difference Result 4283 states and 10970 transitions. [2021-06-01 16:46:55,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:46:55,214 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:55,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:55,218 INFO L225 Difference]: With dead ends: 4283 [2021-06-01 16:46:55,218 INFO L226 Difference]: Without dead ends: 4117 [2021-06-01 16:46:55,218 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2408.2ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:46:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-06-01 16:46:55,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3251. [2021-06-01 16:46:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3250 states have (on average 2.6055384615384614) internal successors, (8468), 3250 states have internal predecessors, (8468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 8468 transitions. [2021-06-01 16:46:55,252 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 8468 transitions. Word has length 119 [2021-06-01 16:46:55,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:55,252 INFO L482 AbstractCegarLoop]: Abstraction has 3251 states and 8468 transitions. [2021-06-01 16:46:55,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:55,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 8468 transitions. [2021-06-01 16:46:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:55,255 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:55,255 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:55,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-01 16:46:55,255 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:55,256 INFO L82 PathProgramCache]: Analyzing trace with hash 210878319, now seen corresponding path program 150 times [2021-06-01 16:46:55,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:55,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245767715] [2021-06-01 16:46:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:55,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:55,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245767715] [2021-06-01 16:46:55,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245767715] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:55,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:55,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:55,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025890967] [2021-06-01 16:46:55,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:55,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:55,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:55,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:55,871 INFO L87 Difference]: Start difference. First operand 3251 states and 8468 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:58,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:46:58,571 INFO L93 Difference]: Finished difference Result 4555 states and 11728 transitions. [2021-06-01 16:46:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:46:58,571 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:46:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:46:58,575 INFO L225 Difference]: With dead ends: 4555 [2021-06-01 16:46:58,575 INFO L226 Difference]: Without dead ends: 4164 [2021-06-01 16:46:58,575 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2487.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:46:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-06-01 16:46:58,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3311. [2021-06-01 16:46:58,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3310 states have (on average 2.5909365558912385) internal successors, (8576), 3310 states have internal predecessors, (8576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 8576 transitions. [2021-06-01 16:46:58,609 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 8576 transitions. Word has length 119 [2021-06-01 16:46:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:46:58,609 INFO L482 AbstractCegarLoop]: Abstraction has 3311 states and 8576 transitions. [2021-06-01 16:46:58,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:46:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 8576 transitions. [2021-06-01 16:46:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:46:58,624 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:46:58,624 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:46:58,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-01 16:46:58,624 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:46:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:46:58,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1419303683, now seen corresponding path program 151 times [2021-06-01 16:46:58,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:46:58,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597329812] [2021-06-01 16:46:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:46:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:46:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:46:59,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:46:59,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597329812] [2021-06-01 16:46:59,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597329812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:46:59,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:46:59,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:46:59,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246361359] [2021-06-01 16:46:59,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:46:59,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:46:59,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:46:59,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:46:59,207 INFO L87 Difference]: Start difference. First operand 3311 states and 8576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:02,057 INFO L93 Difference]: Finished difference Result 4270 states and 10921 transitions. [2021-06-01 16:47:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-01 16:47:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:02,061 INFO L225 Difference]: With dead ends: 4270 [2021-06-01 16:47:02,061 INFO L226 Difference]: Without dead ends: 3864 [2021-06-01 16:47:02,061 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2539.6ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-06-01 16:47:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2021-06-01 16:47:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3011. [2021-06-01 16:47:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 3010 states have (on average 2.5887043189368772) internal successors, (7792), 3010 states have internal predecessors, (7792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:02,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 7792 transitions. [2021-06-01 16:47:02,091 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 7792 transitions. Word has length 119 [2021-06-01 16:47:02,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:02,091 INFO L482 AbstractCegarLoop]: Abstraction has 3011 states and 7792 transitions. [2021-06-01 16:47:02,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:02,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 7792 transitions. [2021-06-01 16:47:02,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:02,093 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:02,093 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:02,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-01 16:47:02,093 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:02,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:02,094 INFO L82 PathProgramCache]: Analyzing trace with hash 814202079, now seen corresponding path program 152 times [2021-06-01 16:47:02,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:02,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692040812] [2021-06-01 16:47:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:02,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:02,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692040812] [2021-06-01 16:47:02,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692040812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:02,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:02,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:02,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737659325] [2021-06-01 16:47:02,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:02,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:02,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:02,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:02,687 INFO L87 Difference]: Start difference. First operand 3011 states and 7792 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:03,796 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-06-01 16:47:04,186 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:47:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:05,593 INFO L93 Difference]: Finished difference Result 3627 states and 9214 transitions. [2021-06-01 16:47:05,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:47:05,594 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:05,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:05,597 INFO L225 Difference]: With dead ends: 3627 [2021-06-01 16:47:05,597 INFO L226 Difference]: Without dead ends: 3447 [2021-06-01 16:47:05,597 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2523.6ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:47:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-01 16:47:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3005. [2021-06-01 16:47:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 2.5888814913448734) internal successors, (7777), 3004 states have internal predecessors, (7777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 7777 transitions. [2021-06-01 16:47:05,627 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 7777 transitions. Word has length 119 [2021-06-01 16:47:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:05,627 INFO L482 AbstractCegarLoop]: Abstraction has 3005 states and 7777 transitions. [2021-06-01 16:47:05,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 7777 transitions. [2021-06-01 16:47:05,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:05,630 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:05,630 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:05,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-01 16:47:05,630 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:05,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:05,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1518517393, now seen corresponding path program 153 times [2021-06-01 16:47:05,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:05,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005393591] [2021-06-01 16:47:05,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:06,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:06,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005393591] [2021-06-01 16:47:06,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005393591] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:06,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:06,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:06,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713111557] [2021-06-01 16:47:06,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:06,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:06,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:06,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:06,238 INFO L87 Difference]: Start difference. First operand 3005 states and 7777 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:07,607 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-01 16:47:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:08,931 INFO L93 Difference]: Finished difference Result 3507 states and 8864 transitions. [2021-06-01 16:47:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:47:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:08,934 INFO L225 Difference]: With dead ends: 3507 [2021-06-01 16:47:08,934 INFO L226 Difference]: Without dead ends: 3297 [2021-06-01 16:47:08,934 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2381.7ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:47:08,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-06-01 16:47:08,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2995. [2021-06-01 16:47:08,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 2.594522378089512) internal successors, (7768), 2994 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 7768 transitions. [2021-06-01 16:47:08,963 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 7768 transitions. Word has length 119 [2021-06-01 16:47:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:08,963 INFO L482 AbstractCegarLoop]: Abstraction has 2995 states and 7768 transitions. [2021-06-01 16:47:08,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 7768 transitions. [2021-06-01 16:47:08,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:08,965 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:08,965 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:08,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-01 16:47:08,965 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:08,965 INFO L82 PathProgramCache]: Analyzing trace with hash -972990871, now seen corresponding path program 154 times [2021-06-01 16:47:08,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:08,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135260108] [2021-06-01 16:47:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:09,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:09,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135260108] [2021-06-01 16:47:09,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135260108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:09,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:09,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:09,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304998552] [2021-06-01 16:47:09,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:09,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:09,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:09,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:09,608 INFO L87 Difference]: Start difference. First operand 2995 states and 7768 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:12,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:12,337 INFO L93 Difference]: Finished difference Result 3451 states and 8756 transitions. [2021-06-01 16:47:12,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:47:12,340 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:12,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:12,343 INFO L225 Difference]: With dead ends: 3451 [2021-06-01 16:47:12,343 INFO L226 Difference]: Without dead ends: 3296 [2021-06-01 16:47:12,343 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2368.0ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:47:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2021-06-01 16:47:12,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3001. [2021-06-01 16:47:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 3000 states have (on average 2.591) internal successors, (7773), 3000 states have internal predecessors, (7773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:12,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 7773 transitions. [2021-06-01 16:47:12,372 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 7773 transitions. Word has length 119 [2021-06-01 16:47:12,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:12,372 INFO L482 AbstractCegarLoop]: Abstraction has 3001 states and 7773 transitions. [2021-06-01 16:47:12,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:12,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 7773 transitions. [2021-06-01 16:47:12,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:12,374 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:12,374 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:12,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-01 16:47:12,374 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:12,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:12,374 INFO L82 PathProgramCache]: Analyzing trace with hash -977409011, now seen corresponding path program 155 times [2021-06-01 16:47:12,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:12,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858379121] [2021-06-01 16:47:12,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:12,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:12,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858379121] [2021-06-01 16:47:12,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858379121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:12,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:12,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:12,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787671380] [2021-06-01 16:47:12,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:12,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:12,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:12,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:12,960 INFO L87 Difference]: Start difference. First operand 3001 states and 7773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:15,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:15,858 INFO L93 Difference]: Finished difference Result 4347 states and 11130 transitions. [2021-06-01 16:47:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:47:15,858 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:15,861 INFO L225 Difference]: With dead ends: 4347 [2021-06-01 16:47:15,861 INFO L226 Difference]: Without dead ends: 4202 [2021-06-01 16:47:15,862 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2419.8ms TimeCoverageRelationStatistics Valid=579, Invalid=2961, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:47:15,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2021-06-01 16:47:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3289. [2021-06-01 16:47:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3288 states have (on average 2.605535279805353) internal successors, (8567), 3288 states have internal predecessors, (8567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 8567 transitions. [2021-06-01 16:47:15,895 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 8567 transitions. Word has length 119 [2021-06-01 16:47:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:15,895 INFO L482 AbstractCegarLoop]: Abstraction has 3289 states and 8567 transitions. [2021-06-01 16:47:15,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 8567 transitions. [2021-06-01 16:47:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:15,897 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:15,897 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:15,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-01 16:47:15,897 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:15,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1452115313, now seen corresponding path program 156 times [2021-06-01 16:47:15,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:15,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5053232] [2021-06-01 16:47:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:16,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:16,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5053232] [2021-06-01 16:47:16,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5053232] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:16,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:16,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:16,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401101635] [2021-06-01 16:47:16,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:16,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:16,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:16,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:16,478 INFO L87 Difference]: Start difference. First operand 3289 states and 8567 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:19,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:19,453 INFO L93 Difference]: Finished difference Result 4682 states and 12014 transitions. [2021-06-01 16:47:19,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-01 16:47:19,453 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:19,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:19,457 INFO L225 Difference]: With dead ends: 4682 [2021-06-01 16:47:19,457 INFO L226 Difference]: Without dead ends: 3900 [2021-06-01 16:47:19,457 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2586.1ms TimeCoverageRelationStatistics Valid=655, Invalid=3251, Unknown=0, NotChecked=0, Total=3906 [2021-06-01 16:47:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2021-06-01 16:47:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3025. [2021-06-01 16:47:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 2.5823412698412698) internal successors, (7809), 3024 states have internal predecessors, (7809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 7809 transitions. [2021-06-01 16:47:19,488 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 7809 transitions. Word has length 119 [2021-06-01 16:47:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:19,488 INFO L482 AbstractCegarLoop]: Abstraction has 3025 states and 7809 transitions. [2021-06-01 16:47:19,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 7809 transitions. [2021-06-01 16:47:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:19,490 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:19,490 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:19,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-01 16:47:19,490 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:19,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1896179975, now seen corresponding path program 157 times [2021-06-01 16:47:19,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:19,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744497230] [2021-06-01 16:47:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:20,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:20,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744497230] [2021-06-01 16:47:20,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744497230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:20,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:20,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:20,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723756022] [2021-06-01 16:47:20,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:20,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:20,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:20,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:20,098 INFO L87 Difference]: Start difference. First operand 3025 states and 7809 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:21,559 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-01 16:47:22,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:22,939 INFO L93 Difference]: Finished difference Result 3661 states and 9292 transitions. [2021-06-01 16:47:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:47:22,940 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:22,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:22,942 INFO L225 Difference]: With dead ends: 3661 [2021-06-01 16:47:22,942 INFO L226 Difference]: Without dead ends: 3454 [2021-06-01 16:47:22,942 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2480.4ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:47:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2021-06-01 16:47:22,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 2965. [2021-06-01 16:47:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 2.5954790823211877) internal successors, (7693), 2964 states have internal predecessors, (7693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 7693 transitions. [2021-06-01 16:47:22,970 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 7693 transitions. Word has length 119 [2021-06-01 16:47:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:22,970 INFO L482 AbstractCegarLoop]: Abstraction has 2965 states and 7693 transitions. [2021-06-01 16:47:22,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 7693 transitions. [2021-06-01 16:47:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:22,973 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:22,973 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:22,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-01 16:47:22,973 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:22,973 INFO L82 PathProgramCache]: Analyzing trace with hash -652334719, now seen corresponding path program 158 times [2021-06-01 16:47:22,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:22,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627621851] [2021-06-01 16:47:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:23,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:23,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627621851] [2021-06-01 16:47:23,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627621851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:23,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:23,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:47:23,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971276271] [2021-06-01 16:47:23,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:47:23,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:23,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:47:23,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:47:23,196 INFO L87 Difference]: Start difference. First operand 2965 states and 7693 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:23,641 INFO L93 Difference]: Finished difference Result 3573 states and 8938 transitions. [2021-06-01 16:47:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:47:23,641 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:23,644 INFO L225 Difference]: With dead ends: 3573 [2021-06-01 16:47:23,644 INFO L226 Difference]: Without dead ends: 3517 [2021-06-01 16:47:23,644 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 392.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:47:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2021-06-01 16:47:23,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 2775. [2021-06-01 16:47:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.5847152126892574) internal successors, (7170), 2774 states have internal predecessors, (7170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7170 transitions. [2021-06-01 16:47:23,672 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7170 transitions. Word has length 119 [2021-06-01 16:47:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:23,672 INFO L482 AbstractCegarLoop]: Abstraction has 2775 states and 7170 transitions. [2021-06-01 16:47:23,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7170 transitions. [2021-06-01 16:47:23,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:23,674 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:23,674 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:23,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-01 16:47:23,675 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:23,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:23,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1816753079, now seen corresponding path program 159 times [2021-06-01 16:47:23,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:23,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240269165] [2021-06-01 16:47:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:24,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:24,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240269165] [2021-06-01 16:47:24,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240269165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:24,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:24,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:24,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904948258] [2021-06-01 16:47:24,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:24,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:24,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:24,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:24,262 INFO L87 Difference]: Start difference. First operand 2775 states and 7170 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:26,407 INFO L93 Difference]: Finished difference Result 2918 states and 7427 transitions. [2021-06-01 16:47:26,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:47:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:26,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:26,410 INFO L225 Difference]: With dead ends: 2918 [2021-06-01 16:47:26,410 INFO L226 Difference]: Without dead ends: 2815 [2021-06-01 16:47:26,410 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1898.5ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:47:26,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-06-01 16:47:26,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2785. [2021-06-01 16:47:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 2.581537356321839) internal successors, (7187), 2784 states have internal predecessors, (7187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 7187 transitions. [2021-06-01 16:47:26,436 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 7187 transitions. Word has length 119 [2021-06-01 16:47:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:26,436 INFO L482 AbstractCegarLoop]: Abstraction has 2785 states and 7187 transitions. [2021-06-01 16:47:26,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:26,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 7187 transitions. [2021-06-01 16:47:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:26,438 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:26,438 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:26,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-01 16:47:26,438 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:26,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:26,438 INFO L82 PathProgramCache]: Analyzing trace with hash -355735893, now seen corresponding path program 160 times [2021-06-01 16:47:26,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:26,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387981418] [2021-06-01 16:47:26,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:27,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:27,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387981418] [2021-06-01 16:47:27,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387981418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:27,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:27,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:27,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570565476] [2021-06-01 16:47:27,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:27,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:27,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:27,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:27,016 INFO L87 Difference]: Start difference. First operand 2785 states and 7187 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:29,243 INFO L93 Difference]: Finished difference Result 2952 states and 7500 transitions. [2021-06-01 16:47:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:47:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:29,246 INFO L225 Difference]: With dead ends: 2952 [2021-06-01 16:47:29,246 INFO L226 Difference]: Without dead ends: 2847 [2021-06-01 16:47:29,246 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2056.0ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:47:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2021-06-01 16:47:29,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2787. [2021-06-01 16:47:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5807609475951185) internal successors, (7190), 2786 states have internal predecessors, (7190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7190 transitions. [2021-06-01 16:47:29,272 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7190 transitions. Word has length 119 [2021-06-01 16:47:29,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:29,272 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7190 transitions. [2021-06-01 16:47:29,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7190 transitions. [2021-06-01 16:47:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:29,274 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:29,274 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:29,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-01 16:47:29,274 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:29,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:29,274 INFO L82 PathProgramCache]: Analyzing trace with hash -769504289, now seen corresponding path program 161 times [2021-06-01 16:47:29,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:29,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006399791] [2021-06-01 16:47:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:29,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:29,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006399791] [2021-06-01 16:47:29,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006399791] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:29,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:29,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:29,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692249508] [2021-06-01 16:47:29,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:29,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:29,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:29,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:29,875 INFO L87 Difference]: Start difference. First operand 2787 states and 7190 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:31,164 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:47:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:31,979 INFO L93 Difference]: Finished difference Result 2908 states and 7404 transitions. [2021-06-01 16:47:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:47:31,979 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:31,982 INFO L225 Difference]: With dead ends: 2908 [2021-06-01 16:47:31,982 INFO L226 Difference]: Without dead ends: 2803 [2021-06-01 16:47:31,982 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1918.8ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:47:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2021-06-01 16:47:32,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2779. [2021-06-01 16:47:32,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2778 states have (on average 2.58207343412527) internal successors, (7173), 2778 states have internal predecessors, (7173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 7173 transitions. [2021-06-01 16:47:32,008 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 7173 transitions. Word has length 119 [2021-06-01 16:47:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:32,008 INFO L482 AbstractCegarLoop]: Abstraction has 2779 states and 7173 transitions. [2021-06-01 16:47:32,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 7173 transitions. [2021-06-01 16:47:32,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:32,010 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:32,010 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:32,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-01 16:47:32,010 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:32,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:32,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2052036599, now seen corresponding path program 162 times [2021-06-01 16:47:32,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:32,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135525537] [2021-06-01 16:47:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:32,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:32,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135525537] [2021-06-01 16:47:32,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135525537] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:32,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:32,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:32,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350859094] [2021-06-01 16:47:32,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:32,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:32,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:32,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:32,566 INFO L87 Difference]: Start difference. First operand 2779 states and 7173 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:34,864 INFO L93 Difference]: Finished difference Result 3190 states and 8124 transitions. [2021-06-01 16:47:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:47:34,865 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:34,868 INFO L225 Difference]: With dead ends: 3190 [2021-06-01 16:47:34,868 INFO L226 Difference]: Without dead ends: 3085 [2021-06-01 16:47:34,868 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2001.7ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:47:34,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-01 16:47:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2815. [2021-06-01 16:47:34,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 2.5813788201847903) internal successors, (7264), 2814 states have internal predecessors, (7264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 7264 transitions. [2021-06-01 16:47:34,894 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 7264 transitions. Word has length 119 [2021-06-01 16:47:34,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:34,894 INFO L482 AbstractCegarLoop]: Abstraction has 2815 states and 7264 transitions. [2021-06-01 16:47:34,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:34,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 7264 transitions. [2021-06-01 16:47:34,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:34,896 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:34,896 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:34,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-01 16:47:34,897 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:34,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:34,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1482659433, now seen corresponding path program 163 times [2021-06-01 16:47:34,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:34,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642945556] [2021-06-01 16:47:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:35,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:35,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642945556] [2021-06-01 16:47:35,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642945556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:35,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:35,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:35,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506519505] [2021-06-01 16:47:35,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:35,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:35,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:35,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:35,448 INFO L87 Difference]: Start difference. First operand 2815 states and 7264 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:37,777 INFO L93 Difference]: Finished difference Result 3390 states and 8637 transitions. [2021-06-01 16:47:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:47:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:37,780 INFO L225 Difference]: With dead ends: 3390 [2021-06-01 16:47:37,780 INFO L226 Difference]: Without dead ends: 3295 [2021-06-01 16:47:37,780 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2010.1ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:47:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2021-06-01 16:47:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2983. [2021-06-01 16:47:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.5761234071093226) internal successors, (7682), 2982 states have internal predecessors, (7682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7682 transitions. [2021-06-01 16:47:37,809 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7682 transitions. Word has length 119 [2021-06-01 16:47:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:37,809 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7682 transitions. [2021-06-01 16:47:37,809 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:37,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7682 transitions. [2021-06-01 16:47:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:37,811 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:37,811 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:37,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-01 16:47:37,811 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:37,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:37,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1007953131, now seen corresponding path program 164 times [2021-06-01 16:47:37,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:37,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602744150] [2021-06-01 16:47:37,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:38,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:38,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:38,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602744150] [2021-06-01 16:47:38,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602744150] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:38,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:38,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:38,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69147490] [2021-06-01 16:47:38,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:38,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:38,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:38,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:38,402 INFO L87 Difference]: Start difference. First operand 2983 states and 7682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:40,863 INFO L93 Difference]: Finished difference Result 3613 states and 9140 transitions. [2021-06-01 16:47:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:47:40,864 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:40,866 INFO L225 Difference]: With dead ends: 3613 [2021-06-01 16:47:40,866 INFO L226 Difference]: Without dead ends: 3058 [2021-06-01 16:47:40,867 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2209.2ms TimeCoverageRelationStatistics Valid=511, Invalid=2681, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:47:40,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-06-01 16:47:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2755. [2021-06-01 16:47:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 2.574074074074074) internal successors, (7089), 2754 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7089 transitions. [2021-06-01 16:47:40,892 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7089 transitions. Word has length 119 [2021-06-01 16:47:40,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:40,892 INFO L482 AbstractCegarLoop]: Abstraction has 2755 states and 7089 transitions. [2021-06-01 16:47:40,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7089 transitions. [2021-06-01 16:47:40,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:40,894 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:40,894 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:40,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-01 16:47:40,895 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:40,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:40,895 INFO L82 PathProgramCache]: Analyzing trace with hash -469165411, now seen corresponding path program 165 times [2021-06-01 16:47:40,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:40,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123752520] [2021-06-01 16:47:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:41,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:41,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123752520] [2021-06-01 16:47:41,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123752520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:41,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:41,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:41,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179579073] [2021-06-01 16:47:41,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:41,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:41,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:41,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:41,465 INFO L87 Difference]: Start difference. First operand 2755 states and 7089 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:43,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:43,718 INFO L93 Difference]: Finished difference Result 2918 states and 7394 transitions. [2021-06-01 16:47:43,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:47:43,718 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:43,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:43,721 INFO L225 Difference]: With dead ends: 2918 [2021-06-01 16:47:43,721 INFO L226 Difference]: Without dead ends: 2813 [2021-06-01 16:47:43,721 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2082.9ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:47:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2021-06-01 16:47:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2757. [2021-06-01 16:47:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2756 states have (on average 2.5732946298984034) internal successors, (7092), 2756 states have internal predecessors, (7092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 7092 transitions. [2021-06-01 16:47:43,757 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 7092 transitions. Word has length 119 [2021-06-01 16:47:43,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:43,757 INFO L482 AbstractCegarLoop]: Abstraction has 2757 states and 7092 transitions. [2021-06-01 16:47:43,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:43,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 7092 transitions. [2021-06-01 16:47:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:43,759 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:43,759 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:43,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-01 16:47:43,759 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:43,759 INFO L82 PathProgramCache]: Analyzing trace with hash -411083799, now seen corresponding path program 166 times [2021-06-01 16:47:43,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:43,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673183093] [2021-06-01 16:47:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:44,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:44,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673183093] [2021-06-01 16:47:44,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673183093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:44,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:44,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:44,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541963499] [2021-06-01 16:47:44,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:44,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:44,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:44,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:44,393 INFO L87 Difference]: Start difference. First operand 2757 states and 7092 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:45,799 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:47:46,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:46,751 INFO L93 Difference]: Finished difference Result 2876 states and 7301 transitions. [2021-06-01 16:47:46,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:47:46,751 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:46,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:46,753 INFO L225 Difference]: With dead ends: 2876 [2021-06-01 16:47:46,753 INFO L226 Difference]: Without dead ends: 2777 [2021-06-01 16:47:46,753 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2193.5ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:47:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2021-06-01 16:47:46,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2755. [2021-06-01 16:47:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 2.5737109658678285) internal successors, (7088), 2754 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7088 transitions. [2021-06-01 16:47:46,777 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7088 transitions. Word has length 119 [2021-06-01 16:47:46,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:46,777 INFO L482 AbstractCegarLoop]: Abstraction has 2755 states and 7088 transitions. [2021-06-01 16:47:46,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7088 transitions. [2021-06-01 16:47:46,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:46,779 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:46,779 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:46,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-01 16:47:46,780 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:46,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:46,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1011777891, now seen corresponding path program 167 times [2021-06-01 16:47:46,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:46,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029260371] [2021-06-01 16:47:46,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:47,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:47,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029260371] [2021-06-01 16:47:47,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029260371] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:47,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:47,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:47,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312238469] [2021-06-01 16:47:47,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:47,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:47,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:47,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:47,355 INFO L87 Difference]: Start difference. First operand 2755 states and 7088 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:49,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:49,671 INFO L93 Difference]: Finished difference Result 3092 states and 7858 transitions. [2021-06-01 16:47:49,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:47:49,671 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:49,673 INFO L225 Difference]: With dead ends: 3092 [2021-06-01 16:47:49,673 INFO L226 Difference]: Without dead ends: 2997 [2021-06-01 16:47:49,673 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2125.8ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:47:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-06-01 16:47:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2899. [2021-06-01 16:47:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2898 states have (on average 2.5734989648033126) internal successors, (7458), 2898 states have internal predecessors, (7458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 7458 transitions. [2021-06-01 16:47:49,699 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 7458 transitions. Word has length 119 [2021-06-01 16:47:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:49,699 INFO L482 AbstractCegarLoop]: Abstraction has 2899 states and 7458 transitions. [2021-06-01 16:47:49,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 7458 transitions. [2021-06-01 16:47:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:49,701 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:49,701 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:49,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-01 16:47:49,702 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:49,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:49,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1486484193, now seen corresponding path program 168 times [2021-06-01 16:47:49,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:49,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976307450] [2021-06-01 16:47:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:50,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:50,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976307450] [2021-06-01 16:47:50,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976307450] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:50,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:50,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:50,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176596595] [2021-06-01 16:47:50,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:50,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:50,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:50,313 INFO L87 Difference]: Start difference. First operand 2899 states and 7458 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:52,800 INFO L93 Difference]: Finished difference Result 3315 states and 8361 transitions. [2021-06-01 16:47:52,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:47:52,801 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:52,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:52,803 INFO L225 Difference]: With dead ends: 3315 [2021-06-01 16:47:52,803 INFO L226 Difference]: Without dead ends: 2820 [2021-06-01 16:47:52,803 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2319.4ms TimeCoverageRelationStatistics Valid=536, Invalid=2770, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:47:52,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-06-01 16:47:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2731. [2021-06-01 16:47:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2730 states have (on average 2.5743589743589745) internal successors, (7028), 2730 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 7028 transitions. [2021-06-01 16:47:52,828 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 7028 transitions. Word has length 119 [2021-06-01 16:47:52,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:52,828 INFO L482 AbstractCegarLoop]: Abstraction has 2731 states and 7028 transitions. [2021-06-01 16:47:52,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 7028 transitions. [2021-06-01 16:47:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:52,830 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:52,830 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:52,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-01 16:47:52,830 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:52,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:52,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1930548855, now seen corresponding path program 169 times [2021-06-01 16:47:52,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:52,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257850926] [2021-06-01 16:47:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:53,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:53,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257850926] [2021-06-01 16:47:53,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257850926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:53,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:53,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:53,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919123855] [2021-06-01 16:47:53,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:53,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:53,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:53,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:53,437 INFO L87 Difference]: Start difference. First operand 2731 states and 7028 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:54,717 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-01 16:47:55,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:55,715 INFO L93 Difference]: Finished difference Result 2850 states and 7237 transitions. [2021-06-01 16:47:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:47:55,716 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:55,718 INFO L225 Difference]: With dead ends: 2850 [2021-06-01 16:47:55,718 INFO L226 Difference]: Without dead ends: 2693 [2021-06-01 16:47:55,718 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2153.5ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:47:55,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-06-01 16:47:55,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2671. [2021-06-01 16:47:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 2670 states have (on average 2.58876404494382) internal successors, (6912), 2670 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:55,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 6912 transitions. [2021-06-01 16:47:55,742 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 6912 transitions. Word has length 119 [2021-06-01 16:47:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:55,742 INFO L482 AbstractCegarLoop]: Abstraction has 2671 states and 6912 transitions. [2021-06-01 16:47:55,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:55,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 6912 transitions. [2021-06-01 16:47:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:55,744 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:55,744 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:55,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-01 16:47:55,744 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash 57708493, now seen corresponding path program 170 times [2021-06-01 16:47:55,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:55,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354807128] [2021-06-01 16:47:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:56,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:56,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354807128] [2021-06-01 16:47:56,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354807128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:56,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:56,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:56,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318377422] [2021-06-01 16:47:56,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:56,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:56,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:56,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:56,326 INFO L87 Difference]: Start difference. First operand 2671 states and 6912 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:57,618 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-01 16:47:58,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:47:58,472 INFO L93 Difference]: Finished difference Result 2825 states and 7191 transitions. [2021-06-01 16:47:58,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:47:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:47:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:47:58,475 INFO L225 Difference]: With dead ends: 2825 [2021-06-01 16:47:58,475 INFO L226 Difference]: Without dead ends: 2671 [2021-06-01 16:47:58,475 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1971.9ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:47:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2021-06-01 16:47:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2655. [2021-06-01 16:47:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.593067068575735) internal successors, (6882), 2654 states have internal predecessors, (6882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6882 transitions. [2021-06-01 16:47:58,500 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6882 transitions. Word has length 119 [2021-06-01 16:47:58,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:47:58,500 INFO L482 AbstractCegarLoop]: Abstraction has 2655 states and 6882 transitions. [2021-06-01 16:47:58,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:47:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6882 transitions. [2021-06-01 16:47:58,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:47:58,502 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:47:58,502 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:47:58,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-01 16:47:58,502 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:47:58,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:47:58,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2126164897, now seen corresponding path program 171 times [2021-06-01 16:47:58,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:47:58,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843458053] [2021-06-01 16:47:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:47:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:47:59,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:47:59,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:47:59,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843458053] [2021-06-01 16:47:59,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843458053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:47:59,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:47:59,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:47:59,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933971843] [2021-06-01 16:47:59,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:47:59,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:47:59,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:47:59,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:47:59,088 INFO L87 Difference]: Start difference. First operand 2655 states and 6882 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:00,232 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-01 16:48:00,453 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-01 16:48:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:01,289 INFO L93 Difference]: Finished difference Result 2903 states and 7378 transitions. [2021-06-01 16:48:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:48:01,289 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:01,291 INFO L225 Difference]: With dead ends: 2903 [2021-06-01 16:48:01,291 INFO L226 Difference]: Without dead ends: 2765 [2021-06-01 16:48:01,292 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1935.4ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:48:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-06-01 16:48:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2667. [2021-06-01 16:48:01,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.589647411852963) internal successors, (6904), 2666 states have internal predecessors, (6904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:01,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6904 transitions. [2021-06-01 16:48:01,316 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6904 transitions. Word has length 119 [2021-06-01 16:48:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:01,317 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6904 transitions. [2021-06-01 16:48:01,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6904 transitions. [2021-06-01 16:48:01,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:01,319 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:01,319 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:01,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-01 16:48:01,319 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:01,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:01,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1606804127, now seen corresponding path program 172 times [2021-06-01 16:48:01,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:01,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696259239] [2021-06-01 16:48:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:01,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:01,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696259239] [2021-06-01 16:48:01,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696259239] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:01,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:01,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:01,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913148178] [2021-06-01 16:48:01,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:01,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:01,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:01,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:01,916 INFO L87 Difference]: Start difference. First operand 2667 states and 6904 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:03,253 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-01 16:48:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:04,315 INFO L93 Difference]: Finished difference Result 2927 states and 7438 transitions. [2021-06-01 16:48:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:48:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:04,317 INFO L225 Difference]: With dead ends: 2927 [2021-06-01 16:48:04,317 INFO L226 Difference]: Without dead ends: 2795 [2021-06-01 16:48:04,318 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2086.0ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:48:04,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2021-06-01 16:48:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2669. [2021-06-01 16:48:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.588830584707646) internal successors, (6907), 2668 states have internal predecessors, (6907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6907 transitions. [2021-06-01 16:48:04,342 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6907 transitions. Word has length 119 [2021-06-01 16:48:04,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:04,343 INFO L482 AbstractCegarLoop]: Abstraction has 2669 states and 6907 transitions. [2021-06-01 16:48:04,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:04,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6907 transitions. [2021-06-01 16:48:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:04,344 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:04,345 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:04,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-01 16:48:04,345 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:04,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:04,345 INFO L82 PathProgramCache]: Analyzing trace with hash 373047677, now seen corresponding path program 173 times [2021-06-01 16:48:04,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:04,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281250778] [2021-06-01 16:48:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:04,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:04,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281250778] [2021-06-01 16:48:04,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281250778] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:04,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:04,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:04,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626743187] [2021-06-01 16:48:04,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:04,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:04,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:04,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:04,984 INFO L87 Difference]: Start difference. First operand 2669 states and 6907 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:07,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:07,399 INFO L93 Difference]: Finished difference Result 3096 states and 7769 transitions. [2021-06-01 16:48:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 16:48:07,399 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:07,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:07,402 INFO L225 Difference]: With dead ends: 3096 [2021-06-01 16:48:07,402 INFO L226 Difference]: Without dead ends: 2943 [2021-06-01 16:48:07,402 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 2264.3ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-06-01 16:48:07,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-06-01 16:48:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2661. [2021-06-01 16:48:07,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 2.5913533834586464) internal successors, (6893), 2660 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6893 transitions. [2021-06-01 16:48:07,428 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6893 transitions. Word has length 119 [2021-06-01 16:48:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:07,428 INFO L482 AbstractCegarLoop]: Abstraction has 2661 states and 6893 transitions. [2021-06-01 16:48:07,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6893 transitions. [2021-06-01 16:48:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:07,430 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:07,430 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:07,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-01 16:48:07,430 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:07,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:07,430 INFO L82 PathProgramCache]: Analyzing trace with hash 414092585, now seen corresponding path program 174 times [2021-06-01 16:48:07,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:07,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676530291] [2021-06-01 16:48:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:08,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:08,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676530291] [2021-06-01 16:48:08,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676530291] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:08,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:08,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:08,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170862733] [2021-06-01 16:48:08,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:08,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:08,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:08,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:08,053 INFO L87 Difference]: Start difference. First operand 2661 states and 6893 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:10,074 INFO L93 Difference]: Finished difference Result 2850 states and 7269 transitions. [2021-06-01 16:48:10,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:48:10,074 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:10,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:10,076 INFO L225 Difference]: With dead ends: 2850 [2021-06-01 16:48:10,077 INFO L226 Difference]: Without dead ends: 2743 [2021-06-01 16:48:10,077 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1902.0ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:48:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2021-06-01 16:48:10,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2657. [2021-06-01 16:48:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.5922439759036147) internal successors, (6885), 2656 states have internal predecessors, (6885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 6885 transitions. [2021-06-01 16:48:10,102 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 6885 transitions. Word has length 119 [2021-06-01 16:48:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:10,102 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 6885 transitions. [2021-06-01 16:48:10,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 6885 transitions. [2021-06-01 16:48:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:10,104 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:10,104 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:10,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-01 16:48:10,104 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:10,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1814285925, now seen corresponding path program 175 times [2021-06-01 16:48:10,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:10,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065191277] [2021-06-01 16:48:10,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:10,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:10,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065191277] [2021-06-01 16:48:10,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065191277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:10,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:10,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:10,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930202303] [2021-06-01 16:48:10,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:10,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:10,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:10,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:10,702 INFO L87 Difference]: Start difference. First operand 2657 states and 6885 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:11,766 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-01 16:48:11,952 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-01 16:48:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:12,803 INFO L93 Difference]: Finished difference Result 2851 states and 7260 transitions. [2021-06-01 16:48:12,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:48:12,803 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:12,806 INFO L225 Difference]: With dead ends: 2851 [2021-06-01 16:48:12,806 INFO L226 Difference]: Without dead ends: 2713 [2021-06-01 16:48:12,806 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1971.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:48:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-06-01 16:48:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2661. [2021-06-01 16:48:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 2.5913533834586464) internal successors, (6893), 2660 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6893 transitions. [2021-06-01 16:48:12,831 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6893 transitions. Word has length 119 [2021-06-01 16:48:12,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:12,831 INFO L482 AbstractCegarLoop]: Abstraction has 2661 states and 6893 transitions. [2021-06-01 16:48:12,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6893 transitions. [2021-06-01 16:48:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:12,844 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:12,844 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:12,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-01 16:48:12,844 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:12,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:12,844 INFO L82 PathProgramCache]: Analyzing trace with hash -687877341, now seen corresponding path program 176 times [2021-06-01 16:48:12,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:12,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157986099] [2021-06-01 16:48:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:13,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:13,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157986099] [2021-06-01 16:48:13,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157986099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:13,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:13,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:13,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311651507] [2021-06-01 16:48:13,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:13,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:13,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:13,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:13,461 INFO L87 Difference]: Start difference. First operand 2661 states and 6893 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:14,711 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:48:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:15,498 INFO L93 Difference]: Finished difference Result 2810 states and 7179 transitions. [2021-06-01 16:48:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:48:15,498 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:15,501 INFO L225 Difference]: With dead ends: 2810 [2021-06-01 16:48:15,501 INFO L226 Difference]: Without dead ends: 2705 [2021-06-01 16:48:15,501 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1908.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:48:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2021-06-01 16:48:15,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2665. [2021-06-01 16:48:15,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.588963963963964) internal successors, (6897), 2664 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6897 transitions. [2021-06-01 16:48:15,535 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6897 transitions. Word has length 119 [2021-06-01 16:48:15,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:15,535 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6897 transitions. [2021-06-01 16:48:15,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6897 transitions. [2021-06-01 16:48:15,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:15,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:15,537 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:15,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-01 16:48:15,538 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:15,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:15,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1344576583, now seen corresponding path program 177 times [2021-06-01 16:48:15,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:15,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266634307] [2021-06-01 16:48:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:16,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:16,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266634307] [2021-06-01 16:48:16,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266634307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:16,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:16,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:16,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298142572] [2021-06-01 16:48:16,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:16,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:16,125 INFO L87 Difference]: Start difference. First operand 2665 states and 6897 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:18,223 INFO L93 Difference]: Finished difference Result 2844 states and 7250 transitions. [2021-06-01 16:48:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:48:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:18,225 INFO L225 Difference]: With dead ends: 2844 [2021-06-01 16:48:18,225 INFO L226 Difference]: Without dead ends: 2739 [2021-06-01 16:48:18,226 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 1956.6ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:48:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2021-06-01 16:48:18,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2667. [2021-06-01 16:48:18,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.5881470367591897) internal successors, (6900), 2666 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6900 transitions. [2021-06-01 16:48:18,250 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6900 transitions. Word has length 119 [2021-06-01 16:48:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:18,250 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6900 transitions. [2021-06-01 16:48:18,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6900 transitions. [2021-06-01 16:48:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:18,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:18,252 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:18,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-01 16:48:18,252 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:18,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1758344979, now seen corresponding path program 178 times [2021-06-01 16:48:18,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:18,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732438522] [2021-06-01 16:48:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:18,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:18,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732438522] [2021-06-01 16:48:18,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732438522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:18,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:18,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:18,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694692153] [2021-06-01 16:48:18,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:18,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:18,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:18,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:18,834 INFO L87 Difference]: Start difference. First operand 2667 states and 6900 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:20,879 INFO L93 Difference]: Finished difference Result 2800 states and 7154 transitions. [2021-06-01 16:48:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:48:20,879 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:20,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:20,881 INFO L225 Difference]: With dead ends: 2800 [2021-06-01 16:48:20,881 INFO L226 Difference]: Without dead ends: 2679 [2021-06-01 16:48:20,881 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1887.8ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:48:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2021-06-01 16:48:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2643. [2021-06-01 16:48:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 2.595760787282362) internal successors, (6858), 2642 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 6858 transitions. [2021-06-01 16:48:20,905 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 6858 transitions. Word has length 119 [2021-06-01 16:48:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:20,905 INFO L482 AbstractCegarLoop]: Abstraction has 2643 states and 6858 transitions. [2021-06-01 16:48:20,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 6858 transitions. [2021-06-01 16:48:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:20,907 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:20,907 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:20,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-01 16:48:20,907 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:20,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1550051719, now seen corresponding path program 179 times [2021-06-01 16:48:20,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:20,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823394531] [2021-06-01 16:48:20,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:21,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:21,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823394531] [2021-06-01 16:48:21,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823394531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:21,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:21,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 16:48:21,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299758493] [2021-06-01 16:48:21,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 16:48:21,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:21,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 16:48:21,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:48:21,092 INFO L87 Difference]: Start difference. First operand 2643 states and 6858 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:21,348 INFO L93 Difference]: Finished difference Result 3437 states and 8645 transitions. [2021-06-01 16:48:21,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:48:21,348 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:21,351 INFO L225 Difference]: With dead ends: 3437 [2021-06-01 16:48:21,351 INFO L226 Difference]: Without dead ends: 3437 [2021-06-01 16:48:21,351 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 244.3ms TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:48:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2021-06-01 16:48:21,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 2701. [2021-06-01 16:48:21,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.553703703703704) internal successors, (6895), 2700 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:21,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6895 transitions. [2021-06-01 16:48:21,379 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6895 transitions. Word has length 119 [2021-06-01 16:48:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:21,379 INFO L482 AbstractCegarLoop]: Abstraction has 2701 states and 6895 transitions. [2021-06-01 16:48:21,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6895 transitions. [2021-06-01 16:48:21,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:21,382 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:21,382 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:21,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-01 16:48:21,382 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:21,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:21,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1306239511, now seen corresponding path program 180 times [2021-06-01 16:48:21,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:21,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276585954] [2021-06-01 16:48:21,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:21,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:21,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276585954] [2021-06-01 16:48:21,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276585954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:21,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:21,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:21,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330879563] [2021-06-01 16:48:21,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:21,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:21,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:21,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:21,954 INFO L87 Difference]: Start difference. First operand 2701 states and 6895 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:24,623 INFO L93 Difference]: Finished difference Result 3527 states and 8819 transitions. [2021-06-01 16:48:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:48:24,623 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:24,626 INFO L225 Difference]: With dead ends: 3527 [2021-06-01 16:48:24,626 INFO L226 Difference]: Without dead ends: 3361 [2021-06-01 16:48:24,627 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 2385.2ms TimeCoverageRelationStatistics Valid=576, Invalid=2964, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:48:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2021-06-01 16:48:24,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 2701. [2021-06-01 16:48:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.5462962962962963) internal successors, (6875), 2700 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6875 transitions. [2021-06-01 16:48:24,653 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6875 transitions. Word has length 119 [2021-06-01 16:48:24,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:24,653 INFO L482 AbstractCegarLoop]: Abstraction has 2701 states and 6875 transitions. [2021-06-01 16:48:24,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6875 transitions. [2021-06-01 16:48:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:24,655 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:24,655 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:24,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-01 16:48:24,655 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:24,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:24,656 INFO L82 PathProgramCache]: Analyzing trace with hash -302392313, now seen corresponding path program 181 times [2021-06-01 16:48:24,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:24,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137920277] [2021-06-01 16:48:24,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:25,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:25,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137920277] [2021-06-01 16:48:25,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137920277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:25,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:25,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:25,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993378980] [2021-06-01 16:48:25,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:25,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:25,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:25,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:25,252 INFO L87 Difference]: Start difference. First operand 2701 states and 6875 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:28,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:28,056 INFO L93 Difference]: Finished difference Result 3799 states and 9577 transitions. [2021-06-01 16:48:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:48:28,057 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:28,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:28,060 INFO L225 Difference]: With dead ends: 3799 [2021-06-01 16:48:28,060 INFO L226 Difference]: Without dead ends: 3408 [2021-06-01 16:48:28,060 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2456.4ms TimeCoverageRelationStatistics Valid=619, Invalid=2921, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:48:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2021-06-01 16:48:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 2761. [2021-06-01 16:48:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2760 states have (on average 2.530072463768116) internal successors, (6983), 2760 states have internal predecessors, (6983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 6983 transitions. [2021-06-01 16:48:28,087 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 6983 transitions. Word has length 119 [2021-06-01 16:48:28,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:28,087 INFO L482 AbstractCegarLoop]: Abstraction has 2761 states and 6983 transitions. [2021-06-01 16:48:28,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 6983 transitions. [2021-06-01 16:48:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:28,089 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:28,089 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:28,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-01 16:48:28,089 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:28,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:28,090 INFO L82 PathProgramCache]: Analyzing trace with hash 906033051, now seen corresponding path program 182 times [2021-06-01 16:48:28,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:28,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650973315] [2021-06-01 16:48:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:28,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:28,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:28,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650973315] [2021-06-01 16:48:28,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650973315] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:28,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:28,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:28,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685181982] [2021-06-01 16:48:28,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:28,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:28,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:28,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:28,672 INFO L87 Difference]: Start difference. First operand 2761 states and 6983 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:31,588 INFO L93 Difference]: Finished difference Result 3514 states and 8770 transitions. [2021-06-01 16:48:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-01 16:48:31,589 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:31,591 INFO L225 Difference]: With dead ends: 3514 [2021-06-01 16:48:31,591 INFO L226 Difference]: Without dead ends: 3108 [2021-06-01 16:48:31,591 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2534.6ms TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2021-06-01 16:48:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2021-06-01 16:48:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2461. [2021-06-01 16:48:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 2.519918699186992) internal successors, (6199), 2460 states have internal predecessors, (6199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6199 transitions. [2021-06-01 16:48:31,615 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6199 transitions. Word has length 119 [2021-06-01 16:48:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:31,615 INFO L482 AbstractCegarLoop]: Abstraction has 2461 states and 6199 transitions. [2021-06-01 16:48:31,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6199 transitions. [2021-06-01 16:48:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:31,617 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:31,617 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:31,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-01 16:48:31,617 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:31,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:31,617 INFO L82 PathProgramCache]: Analyzing trace with hash 300931447, now seen corresponding path program 183 times [2021-06-01 16:48:31,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:31,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917578816] [2021-06-01 16:48:31,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:32,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:32,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917578816] [2021-06-01 16:48:32,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917578816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:32,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:32,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:32,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925222814] [2021-06-01 16:48:32,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:32,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:32,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:32,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:32,218 INFO L87 Difference]: Start difference. First operand 2461 states and 6199 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:33,628 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:48:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:34,989 INFO L93 Difference]: Finished difference Result 2927 states and 7215 transitions. [2021-06-01 16:48:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:48:34,989 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:34,991 INFO L225 Difference]: With dead ends: 2927 [2021-06-01 16:48:34,991 INFO L226 Difference]: Without dead ends: 2747 [2021-06-01 16:48:34,992 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2486.1ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:48:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2021-06-01 16:48:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2455. [2021-06-01 16:48:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 2.519967400162999) internal successors, (6184), 2454 states have internal predecessors, (6184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 6184 transitions. [2021-06-01 16:48:35,014 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 6184 transitions. Word has length 119 [2021-06-01 16:48:35,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:35,014 INFO L482 AbstractCegarLoop]: Abstraction has 2455 states and 6184 transitions. [2021-06-01 16:48:35,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:35,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 6184 transitions. [2021-06-01 16:48:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:35,016 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:35,016 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:35,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-01 16:48:35,016 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:35,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:35,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1005246761, now seen corresponding path program 184 times [2021-06-01 16:48:35,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:35,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618706404] [2021-06-01 16:48:35,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:35,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:35,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:35,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618706404] [2021-06-01 16:48:35,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618706404] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:35,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:35,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:35,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954653960] [2021-06-01 16:48:35,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:35,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:35,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:35,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:35,583 INFO L87 Difference]: Start difference. First operand 2455 states and 6184 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:36,929 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-01 16:48:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:38,222 INFO L93 Difference]: Finished difference Result 2827 states and 6921 transitions. [2021-06-01 16:48:38,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:48:38,222 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:38,225 INFO L225 Difference]: With dead ends: 2827 [2021-06-01 16:48:38,225 INFO L226 Difference]: Without dead ends: 2617 [2021-06-01 16:48:38,225 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2338.6ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:48:38,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2021-06-01 16:48:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2445. [2021-06-01 16:48:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2444 states have (on average 2.526595744680851) internal successors, (6175), 2444 states have internal predecessors, (6175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6175 transitions. [2021-06-01 16:48:38,246 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6175 transitions. Word has length 119 [2021-06-01 16:48:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:38,246 INFO L482 AbstractCegarLoop]: Abstraction has 2445 states and 6175 transitions. [2021-06-01 16:48:38,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:38,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6175 transitions. [2021-06-01 16:48:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:38,248 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:38,248 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:38,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-01 16:48:38,248 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:38,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:38,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1486261503, now seen corresponding path program 185 times [2021-06-01 16:48:38,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:38,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423935236] [2021-06-01 16:48:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:38,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:38,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423935236] [2021-06-01 16:48:38,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423935236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:38,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:38,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:38,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681428576] [2021-06-01 16:48:38,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:38,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:38,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:38,867 INFO L87 Difference]: Start difference. First operand 2445 states and 6175 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:41,565 INFO L93 Difference]: Finished difference Result 2771 states and 6813 transitions. [2021-06-01 16:48:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:48:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:41,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:41,568 INFO L225 Difference]: With dead ends: 2771 [2021-06-01 16:48:41,568 INFO L226 Difference]: Without dead ends: 2616 [2021-06-01 16:48:41,568 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2345.4ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:48:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2021-06-01 16:48:41,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2451. [2021-06-01 16:48:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2450 states have (on average 2.522448979591837) internal successors, (6180), 2450 states have internal predecessors, (6180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 6180 transitions. [2021-06-01 16:48:41,590 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 6180 transitions. Word has length 119 [2021-06-01 16:48:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:41,590 INFO L482 AbstractCegarLoop]: Abstraction has 2451 states and 6180 transitions. [2021-06-01 16:48:41,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:41,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 6180 transitions. [2021-06-01 16:48:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:41,592 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:41,592 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:41,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-01 16:48:41,592 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:41,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:41,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1490679643, now seen corresponding path program 186 times [2021-06-01 16:48:41,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:41,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601149891] [2021-06-01 16:48:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:42,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:42,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601149891] [2021-06-01 16:48:42,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601149891] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:42,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:42,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:42,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193189438] [2021-06-01 16:48:42,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:42,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:42,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:42,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:42,196 INFO L87 Difference]: Start difference. First operand 2451 states and 6180 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:45,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:45,016 INFO L93 Difference]: Finished difference Result 3667 states and 9187 transitions. [2021-06-01 16:48:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:48:45,017 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:45,019 INFO L225 Difference]: With dead ends: 3667 [2021-06-01 16:48:45,019 INFO L226 Difference]: Without dead ends: 3522 [2021-06-01 16:48:45,019 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2412.7ms TimeCoverageRelationStatistics Valid=580, Invalid=2960, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:48:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2021-06-01 16:48:45,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 2739. [2021-06-01 16:48:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2738 states have (on average 2.547114682249817) internal successors, (6974), 2738 states have internal predecessors, (6974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 6974 transitions. [2021-06-01 16:48:45,045 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 6974 transitions. Word has length 119 [2021-06-01 16:48:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:45,045 INFO L482 AbstractCegarLoop]: Abstraction has 2739 states and 6974 transitions. [2021-06-01 16:48:45,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 6974 transitions. [2021-06-01 16:48:45,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:45,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:45,047 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:45,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-01 16:48:45,047 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:45,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1965385945, now seen corresponding path program 187 times [2021-06-01 16:48:45,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:45,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023432889] [2021-06-01 16:48:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:45,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:45,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023432889] [2021-06-01 16:48:45,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023432889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:45,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:45,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:45,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956540588] [2021-06-01 16:48:45,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:45,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:45,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:45,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:45,623 INFO L87 Difference]: Start difference. First operand 2739 states and 6974 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:48,582 INFO L93 Difference]: Finished difference Result 4002 states and 10071 transitions. [2021-06-01 16:48:48,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-01 16:48:48,582 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:48,585 INFO L225 Difference]: With dead ends: 4002 [2021-06-01 16:48:48,585 INFO L226 Difference]: Without dead ends: 3220 [2021-06-01 16:48:48,586 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 2564.5ms TimeCoverageRelationStatistics Valid=656, Invalid=3250, Unknown=0, NotChecked=0, Total=3906 [2021-06-01 16:48:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2021-06-01 16:48:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 2475. [2021-06-01 16:48:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2474 states have (on average 2.5125303152789007) internal successors, (6216), 2474 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:48,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 6216 transitions. [2021-06-01 16:48:48,609 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 6216 transitions. Word has length 119 [2021-06-01 16:48:48,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:48,610 INFO L482 AbstractCegarLoop]: Abstraction has 2475 states and 6216 transitions. [2021-06-01 16:48:48,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:48,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 6216 transitions. [2021-06-01 16:48:48,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:48,612 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:48,612 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:48,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-01 16:48:48,612 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:48,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:48,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1885516689, now seen corresponding path program 188 times [2021-06-01 16:48:48,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:48,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897459070] [2021-06-01 16:48:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:49,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:49,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897459070] [2021-06-01 16:48:49,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897459070] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:49,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:49,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:49,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430109520] [2021-06-01 16:48:49,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:49,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:49,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:49,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:49,200 INFO L87 Difference]: Start difference. First operand 2475 states and 6216 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:50,696 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-01 16:48:52,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:52,061 INFO L93 Difference]: Finished difference Result 2981 states and 7349 transitions. [2021-06-01 16:48:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:48:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:52,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:52,064 INFO L225 Difference]: With dead ends: 2981 [2021-06-01 16:48:52,064 INFO L226 Difference]: Without dead ends: 2774 [2021-06-01 16:48:52,064 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2432.9ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:48:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2021-06-01 16:48:52,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2415. [2021-06-01 16:48:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2414 states have (on average 2.5269262634631318) internal successors, (6100), 2414 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 6100 transitions. [2021-06-01 16:48:52,086 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 6100 transitions. Word has length 119 [2021-06-01 16:48:52,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:52,086 INFO L482 AbstractCegarLoop]: Abstraction has 2415 states and 6100 transitions. [2021-06-01 16:48:52,086 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 6100 transitions. [2021-06-01 16:48:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:52,088 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:52,088 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:52,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-01 16:48:52,088 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:52,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1165605351, now seen corresponding path program 189 times [2021-06-01 16:48:52,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:52,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499196120] [2021-06-01 16:48:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:52,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:52,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499196120] [2021-06-01 16:48:52,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499196120] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:52,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:52,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:48:52,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651196707] [2021-06-01 16:48:52,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:48:52,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:52,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:48:52,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:48:52,330 INFO L87 Difference]: Start difference. First operand 2415 states and 6100 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:52,767 INFO L93 Difference]: Finished difference Result 2871 states and 7050 transitions. [2021-06-01 16:48:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:48:52,767 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:52,769 INFO L225 Difference]: With dead ends: 2871 [2021-06-01 16:48:52,769 INFO L226 Difference]: Without dead ends: 2815 [2021-06-01 16:48:52,769 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 416.6ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:48:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-06-01 16:48:52,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2521. [2021-06-01 16:48:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2520 states have (on average 2.5186507936507936) internal successors, (6347), 2520 states have internal predecessors, (6347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:52,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 6347 transitions. [2021-06-01 16:48:52,792 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 6347 transitions. Word has length 119 [2021-06-01 16:48:52,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:52,792 INFO L482 AbstractCegarLoop]: Abstraction has 2521 states and 6347 transitions. [2021-06-01 16:48:52,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 6347 transitions. [2021-06-01 16:48:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:52,794 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:52,794 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:52,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-01 16:48:52,794 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:52,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1303482447, now seen corresponding path program 190 times [2021-06-01 16:48:52,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:52,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271130434] [2021-06-01 16:48:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:53,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:53,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271130434] [2021-06-01 16:48:53,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271130434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:53,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:53,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:53,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71974141] [2021-06-01 16:48:53,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:53,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:53,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:53,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:53,375 INFO L87 Difference]: Start difference. First operand 2521 states and 6347 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:55,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:55,928 INFO L93 Difference]: Finished difference Result 2919 states and 7159 transitions. [2021-06-01 16:48:55,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:48:55,929 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:55,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:55,931 INFO L225 Difference]: With dead ends: 2919 [2021-06-01 16:48:55,931 INFO L226 Difference]: Without dead ends: 2766 [2021-06-01 16:48:55,931 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2310.5ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:48:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2021-06-01 16:48:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2561. [2021-06-01 16:48:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 2.515234375) internal successors, (6439), 2560 states have internal predecessors, (6439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 6439 transitions. [2021-06-01 16:48:55,953 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 6439 transitions. Word has length 119 [2021-06-01 16:48:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:55,954 INFO L482 AbstractCegarLoop]: Abstraction has 2561 states and 6439 transitions. [2021-06-01 16:48:55,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 6439 transitions. [2021-06-01 16:48:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:55,955 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:55,956 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:55,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-01 16:48:55,956 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:55,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:55,956 INFO L82 PathProgramCache]: Analyzing trace with hash -869006525, now seen corresponding path program 191 times [2021-06-01 16:48:55,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:55,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336262985] [2021-06-01 16:48:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:48:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:48:56,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:48:56,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336262985] [2021-06-01 16:48:56,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336262985] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:48:56,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:48:56,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:48:56,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371553104] [2021-06-01 16:48:56,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:48:56,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:48:56,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:48:56,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:48:56,534 INFO L87 Difference]: Start difference. First operand 2561 states and 6439 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:59,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:48:59,422 INFO L93 Difference]: Finished difference Result 2961 states and 7246 transitions. [2021-06-01 16:48:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:48:59,423 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:48:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:48:59,425 INFO L225 Difference]: With dead ends: 2961 [2021-06-01 16:48:59,425 INFO L226 Difference]: Without dead ends: 2802 [2021-06-01 16:48:59,425 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2525.3ms TimeCoverageRelationStatistics Valid=615, Invalid=2925, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:48:59,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2021-06-01 16:48:59,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2565. [2021-06-01 16:48:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 2.513650546021841) internal successors, (6445), 2564 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:59,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 6445 transitions. [2021-06-01 16:48:59,448 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 6445 transitions. Word has length 119 [2021-06-01 16:48:59,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:48:59,448 INFO L482 AbstractCegarLoop]: Abstraction has 2565 states and 6445 transitions. [2021-06-01 16:48:59,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:48:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 6445 transitions. [2021-06-01 16:48:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:48:59,450 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:48:59,450 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:48:59,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-01 16:48:59,450 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:48:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:48:59,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1282774921, now seen corresponding path program 192 times [2021-06-01 16:48:59,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:48:59,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814762010] [2021-06-01 16:48:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:48:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:00,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:00,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814762010] [2021-06-01 16:49:00,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814762010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:00,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:00,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:00,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052832530] [2021-06-01 16:49:00,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:00,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:00,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:00,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:00,049 INFO L87 Difference]: Start difference. First operand 2565 states and 6445 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:01,307 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:49:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:02,835 INFO L93 Difference]: Finished difference Result 2937 states and 7187 transitions. [2021-06-01 16:49:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-01 16:49:02,835 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:02,838 INFO L225 Difference]: With dead ends: 2937 [2021-06-01 16:49:02,838 INFO L226 Difference]: Without dead ends: 2782 [2021-06-01 16:49:02,838 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2466.3ms TimeCoverageRelationStatistics Valid=632, Invalid=2908, Unknown=0, NotChecked=0, Total=3540 [2021-06-01 16:49:02,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2021-06-01 16:49:02,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2557. [2021-06-01 16:49:02,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 2.514866979655712) internal successors, (6428), 2556 states have internal predecessors, (6428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6428 transitions. [2021-06-01 16:49:02,861 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6428 transitions. Word has length 119 [2021-06-01 16:49:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:02,861 INFO L482 AbstractCegarLoop]: Abstraction has 2557 states and 6428 transitions. [2021-06-01 16:49:02,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6428 transitions. [2021-06-01 16:49:02,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:02,863 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:02,864 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:02,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-01 16:49:02,864 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:02,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:02,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1729660065, now seen corresponding path program 193 times [2021-06-01 16:49:02,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:02,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790936231] [2021-06-01 16:49:02,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:03,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:03,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790936231] [2021-06-01 16:49:03,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790936231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:03,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:03,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:03,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425003630] [2021-06-01 16:49:03,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:03,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:03,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:03,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:03,431 INFO L87 Difference]: Start difference. First operand 2557 states and 6428 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:06,409 INFO L93 Difference]: Finished difference Result 3939 states and 9854 transitions. [2021-06-01 16:49:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:49:06,410 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:06,412 INFO L225 Difference]: With dead ends: 3939 [2021-06-01 16:49:06,412 INFO L226 Difference]: Without dead ends: 3780 [2021-06-01 16:49:06,412 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2520.1ms TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:49:06,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2021-06-01 16:49:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 2629. [2021-06-01 16:49:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2628 states have (on average 2.5209284627092847) internal successors, (6625), 2628 states have internal predecessors, (6625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 6625 transitions. [2021-06-01 16:49:06,437 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 6625 transitions. Word has length 119 [2021-06-01 16:49:06,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:06,438 INFO L482 AbstractCegarLoop]: Abstraction has 2629 states and 6625 transitions. [2021-06-01 16:49:06,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 6625 transitions. [2021-06-01 16:49:06,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:06,439 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:06,439 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:06,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-01 16:49:06,440 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:06,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:06,440 INFO L82 PathProgramCache]: Analyzing trace with hash 969388801, now seen corresponding path program 194 times [2021-06-01 16:49:06,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:06,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769926919] [2021-06-01 16:49:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:06,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:06,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769926919] [2021-06-01 16:49:06,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769926919] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:06,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:06,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:06,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951371725] [2021-06-01 16:49:06,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:06,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:06,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:06,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:06,989 INFO L87 Difference]: Start difference. First operand 2629 states and 6625 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:09,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:09,658 INFO L93 Difference]: Finished difference Result 4166 states and 10557 transitions. [2021-06-01 16:49:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:49:09,658 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:09,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:09,661 INFO L225 Difference]: With dead ends: 4166 [2021-06-01 16:49:09,661 INFO L226 Difference]: Without dead ends: 4021 [2021-06-01 16:49:09,661 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2320.5ms TimeCoverageRelationStatistics Valid=553, Invalid=2753, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:49:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2021-06-01 16:49:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 2893. [2021-06-01 16:49:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.5321576763485476) internal successors, (7323), 2892 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7323 transitions. [2021-06-01 16:49:09,690 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7323 transitions. Word has length 119 [2021-06-01 16:49:09,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:09,690 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7323 transitions. [2021-06-01 16:49:09,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:09,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7323 transitions. [2021-06-01 16:49:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:09,692 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:09,692 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:09,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-01 16:49:09,692 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:09,693 INFO L82 PathProgramCache]: Analyzing trace with hash 494682499, now seen corresponding path program 195 times [2021-06-01 16:49:09,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:09,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130309500] [2021-06-01 16:49:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:10,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:10,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130309500] [2021-06-01 16:49:10,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130309500] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:10,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:10,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:10,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833940247] [2021-06-01 16:49:10,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:10,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:10,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:10,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:10,271 INFO L87 Difference]: Start difference. First operand 2893 states and 7323 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:13,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:13,574 INFO L93 Difference]: Finished difference Result 4537 states and 11446 transitions. [2021-06-01 16:49:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-01 16:49:13,574 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:13,577 INFO L225 Difference]: With dead ends: 4537 [2021-06-01 16:49:13,577 INFO L226 Difference]: Without dead ends: 3658 [2021-06-01 16:49:13,578 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 2895.8ms TimeCoverageRelationStatistics Valid=696, Invalid=3464, Unknown=0, NotChecked=0, Total=4160 [2021-06-01 16:49:13,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2021-06-01 16:49:13,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 2545. [2021-06-01 16:49:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 2.50314465408805) internal successors, (6368), 2544 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 6368 transitions. [2021-06-01 16:49:13,603 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 6368 transitions. Word has length 119 [2021-06-01 16:49:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:13,604 INFO L482 AbstractCegarLoop]: Abstraction has 2545 states and 6368 transitions. [2021-06-01 16:49:13,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 6368 transitions. [2021-06-01 16:49:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:13,605 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:13,605 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:13,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-01 16:49:13,606 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:13,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:13,606 INFO L82 PathProgramCache]: Analyzing trace with hash -982436043, now seen corresponding path program 196 times [2021-06-01 16:49:13,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:13,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236020868] [2021-06-01 16:49:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:14,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:14,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236020868] [2021-06-01 16:49:14,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236020868] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:14,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:14,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:14,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370521573] [2021-06-01 16:49:14,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:14,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:14,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:14,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:14,175 INFO L87 Difference]: Start difference. First operand 2545 states and 6368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:17,027 INFO L93 Difference]: Finished difference Result 3253 states and 8026 transitions. [2021-06-01 16:49:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:49:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:17,030 INFO L225 Difference]: With dead ends: 3253 [2021-06-01 16:49:17,030 INFO L226 Difference]: Without dead ends: 3094 [2021-06-01 16:49:17,030 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2513.4ms TimeCoverageRelationStatistics Valid=644, Invalid=3016, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:49:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2021-06-01 16:49:17,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 2549. [2021-06-01 16:49:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2548 states have (on average 2.501569858712716) internal successors, (6374), 2548 states have internal predecessors, (6374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 6374 transitions. [2021-06-01 16:49:17,063 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 6374 transitions. Word has length 119 [2021-06-01 16:49:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:17,063 INFO L482 AbstractCegarLoop]: Abstraction has 2549 states and 6374 transitions. [2021-06-01 16:49:17,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 6374 transitions. [2021-06-01 16:49:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:17,065 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:17,065 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:17,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-01 16:49:17,065 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:17,066 INFO L82 PathProgramCache]: Analyzing trace with hash -924354431, now seen corresponding path program 197 times [2021-06-01 16:49:17,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:17,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401263990] [2021-06-01 16:49:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:17,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:17,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401263990] [2021-06-01 16:49:17,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401263990] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:17,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:17,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:17,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032759526] [2021-06-01 16:49:17,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:17,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:17,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:17,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:17,661 INFO L87 Difference]: Start difference. First operand 2549 states and 6374 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:19,088 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:49:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:20,731 INFO L93 Difference]: Finished difference Result 3237 states and 7985 transitions. [2021-06-01 16:49:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:49:20,732 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:20,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:20,734 INFO L225 Difference]: With dead ends: 3237 [2021-06-01 16:49:20,734 INFO L226 Difference]: Without dead ends: 3088 [2021-06-01 16:49:20,734 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2662.1ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:49:20,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2021-06-01 16:49:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2545. [2021-06-01 16:49:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 2.502751572327044) internal successors, (6367), 2544 states have internal predecessors, (6367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 6367 transitions. [2021-06-01 16:49:20,757 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 6367 transitions. Word has length 119 [2021-06-01 16:49:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:20,758 INFO L482 AbstractCegarLoop]: Abstraction has 2545 states and 6367 transitions. [2021-06-01 16:49:20,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 6367 transitions. [2021-06-01 16:49:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:20,759 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:20,760 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:20,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-01 16:49:20,760 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:20,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:20,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1525048523, now seen corresponding path program 198 times [2021-06-01 16:49:20,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:20,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508088288] [2021-06-01 16:49:20,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:21,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:21,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508088288] [2021-06-01 16:49:21,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508088288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:21,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:21,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:21,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025611487] [2021-06-01 16:49:21,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:21,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:21,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:21,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:21,332 INFO L87 Difference]: Start difference. First operand 2545 states and 6367 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:24,309 INFO L93 Difference]: Finished difference Result 4005 states and 10005 transitions. [2021-06-01 16:49:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:49:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:24,313 INFO L225 Difference]: With dead ends: 4005 [2021-06-01 16:49:24,313 INFO L226 Difference]: Without dead ends: 3860 [2021-06-01 16:49:24,313 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2534.7ms TimeCoverageRelationStatistics Valid=607, Invalid=3053, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:49:24,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2021-06-01 16:49:24,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 2833. [2021-06-01 16:49:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.5286016949152543) internal successors, (7161), 2832 states have internal predecessors, (7161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:24,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7161 transitions. [2021-06-01 16:49:24,341 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7161 transitions. Word has length 119 [2021-06-01 16:49:24,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:24,341 INFO L482 AbstractCegarLoop]: Abstraction has 2833 states and 7161 transitions. [2021-06-01 16:49:24,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7161 transitions. [2021-06-01 16:49:24,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:24,343 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:24,343 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:24,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-01 16:49:24,344 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:24,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:24,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1999754825, now seen corresponding path program 199 times [2021-06-01 16:49:24,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:24,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300039407] [2021-06-01 16:49:24,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:24,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:24,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300039407] [2021-06-01 16:49:24,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300039407] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:24,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:24,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:24,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357915017] [2021-06-01 16:49:24,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:24,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:24,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:24,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:24,952 INFO L87 Difference]: Start difference. First operand 2833 states and 7161 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:28,208 INFO L93 Difference]: Finished difference Result 4340 states and 10889 transitions. [2021-06-01 16:49:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-01 16:49:28,208 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:28,210 INFO L225 Difference]: With dead ends: 4340 [2021-06-01 16:49:28,210 INFO L226 Difference]: Without dead ends: 3558 [2021-06-01 16:49:28,211 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2879.4ms TimeCoverageRelationStatistics Valid=687, Invalid=3345, Unknown=0, NotChecked=0, Total=4032 [2021-06-01 16:49:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2021-06-01 16:49:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 2569. [2021-06-01 16:49:28,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2568 states have (on average 2.4933800623052957) internal successors, (6403), 2568 states have internal predecessors, (6403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:28,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 6403 transitions. [2021-06-01 16:49:28,236 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 6403 transitions. Word has length 119 [2021-06-01 16:49:28,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:28,236 INFO L482 AbstractCegarLoop]: Abstraction has 2569 states and 6403 transitions. [2021-06-01 16:49:28,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:28,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 6403 transitions. [2021-06-01 16:49:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:28,238 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:28,238 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:28,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-01 16:49:28,238 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:28,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1851147809, now seen corresponding path program 200 times [2021-06-01 16:49:28,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:28,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713928953] [2021-06-01 16:49:28,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:28,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:28,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713928953] [2021-06-01 16:49:28,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713928953] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:28,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:28,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:28,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821151770] [2021-06-01 16:49:28,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:28,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:28,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:28,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:28,865 INFO L87 Difference]: Start difference. First operand 2569 states and 6403 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:30,378 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-01 16:49:30,768 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-06-01 16:49:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:31,897 INFO L93 Difference]: Finished difference Result 3307 states and 8139 transitions. [2021-06-01 16:49:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-01 16:49:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:31,900 INFO L225 Difference]: With dead ends: 3307 [2021-06-01 16:49:31,900 INFO L226 Difference]: Without dead ends: 3100 [2021-06-01 16:49:31,900 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2686.6ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-06-01 16:49:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2021-06-01 16:49:31,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 2461. [2021-06-01 16:49:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 2.5166666666666666) internal successors, (6191), 2460 states have internal predecessors, (6191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6191 transitions. [2021-06-01 16:49:31,923 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6191 transitions. Word has length 119 [2021-06-01 16:49:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:31,923 INFO L482 AbstractCegarLoop]: Abstraction has 2461 states and 6191 transitions. [2021-06-01 16:49:31,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:31,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6191 transitions. [2021-06-01 16:49:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:31,925 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:31,925 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:31,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-01 16:49:31,926 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:31,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:31,926 INFO L82 PathProgramCache]: Analyzing trace with hash -455562139, now seen corresponding path program 201 times [2021-06-01 16:49:31,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:31,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3839010] [2021-06-01 16:49:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:32,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:32,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3839010] [2021-06-01 16:49:32,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3839010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:32,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:32,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:32,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374851789] [2021-06-01 16:49:32,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:32,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:32,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:32,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:32,500 INFO L87 Difference]: Start difference. First operand 2461 states and 6191 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:33,773 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-01 16:49:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:35,133 INFO L93 Difference]: Finished difference Result 2819 states and 6897 transitions. [2021-06-01 16:49:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:49:35,133 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:35,135 INFO L225 Difference]: With dead ends: 2819 [2021-06-01 16:49:35,135 INFO L226 Difference]: Without dead ends: 2629 [2021-06-01 16:49:35,135 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2411.0ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:49:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2021-06-01 16:49:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2421. [2021-06-01 16:49:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2420 states have (on average 2.521074380165289) internal successors, (6101), 2420 states have internal predecessors, (6101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 6101 transitions. [2021-06-01 16:49:35,157 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 6101 transitions. Word has length 119 [2021-06-01 16:49:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:35,157 INFO L482 AbstractCegarLoop]: Abstraction has 2421 states and 6101 transitions. [2021-06-01 16:49:35,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:35,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 6101 transitions. [2021-06-01 16:49:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:35,159 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:35,159 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:35,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-01 16:49:35,159 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:35,159 INFO L82 PathProgramCache]: Analyzing trace with hash 320146723, now seen corresponding path program 202 times [2021-06-01 16:49:35,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:35,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56414686] [2021-06-01 16:49:35,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:35,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:35,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56414686] [2021-06-01 16:49:35,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56414686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:35,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:35,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:49:35,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151299138] [2021-06-01 16:49:35,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:49:35,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:35,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:49:35,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:49:35,396 INFO L87 Difference]: Start difference. First operand 2421 states and 6101 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:35,809 INFO L93 Difference]: Finished difference Result 1815 states and 4350 transitions. [2021-06-01 16:49:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:49:35,809 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:35,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:35,810 INFO L225 Difference]: With dead ends: 1815 [2021-06-01 16:49:35,810 INFO L226 Difference]: Without dead ends: 1703 [2021-06-01 16:49:35,811 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 406.7ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-06-01 16:49:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-06-01 16:49:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1679. [2021-06-01 16:49:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1678 states have (on average 2.3969010727056017) internal successors, (4022), 1678 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 4022 transitions. [2021-06-01 16:49:35,824 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 4022 transitions. Word has length 119 [2021-06-01 16:49:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:35,824 INFO L482 AbstractCegarLoop]: Abstraction has 1679 states and 4022 transitions. [2021-06-01 16:49:35,824 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 4022 transitions. [2021-06-01 16:49:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:35,826 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:35,826 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:35,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-01 16:49:35,826 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:35,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:35,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1839448861, now seen corresponding path program 203 times [2021-06-01 16:49:35,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:35,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007391686] [2021-06-01 16:49:35,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:36,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:36,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007391686] [2021-06-01 16:49:36,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007391686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:36,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:36,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:36,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840152706] [2021-06-01 16:49:36,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:36,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:36,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:36,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:36,419 INFO L87 Difference]: Start difference. First operand 1679 states and 4022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:37,715 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:49:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:38,530 INFO L93 Difference]: Finished difference Result 1838 states and 4333 transitions. [2021-06-01 16:49:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:49:38,531 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:38,532 INFO L225 Difference]: With dead ends: 1838 [2021-06-01 16:49:38,532 INFO L226 Difference]: Without dead ends: 1735 [2021-06-01 16:49:38,533 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1875.9ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:49:38,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-06-01 16:49:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1713. [2021-06-01 16:49:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 2.3942757009345796) internal successors, (4099), 1712 states have internal predecessors, (4099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 4099 transitions. [2021-06-01 16:49:38,547 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 4099 transitions. Word has length 119 [2021-06-01 16:49:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:38,547 INFO L482 AbstractCegarLoop]: Abstraction has 1713 states and 4099 transitions. [2021-06-01 16:49:38,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 4099 transitions. [2021-06-01 16:49:38,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:38,548 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:38,548 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:38,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-01 16:49:38,548 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:38,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:38,549 INFO L82 PathProgramCache]: Analyzing trace with hash 283029463, now seen corresponding path program 204 times [2021-06-01 16:49:38,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:38,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868212360] [2021-06-01 16:49:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:39,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:39,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868212360] [2021-06-01 16:49:39,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868212360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:39,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:39,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:39,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108555689] [2021-06-01 16:49:39,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:39,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:39,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:39,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:39,145 INFO L87 Difference]: Start difference. First operand 1713 states and 4099 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:41,357 INFO L93 Difference]: Finished difference Result 1874 states and 4409 transitions. [2021-06-01 16:49:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:49:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:41,359 INFO L225 Difference]: With dead ends: 1874 [2021-06-01 16:49:41,360 INFO L226 Difference]: Without dead ends: 1769 [2021-06-01 16:49:41,360 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1946.9ms TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:49:41,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2021-06-01 16:49:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1715. [2021-06-01 16:49:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.3932322053675614) internal successors, (4102), 1714 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4102 transitions. [2021-06-01 16:49:41,374 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4102 transitions. Word has length 119 [2021-06-01 16:49:41,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:41,374 INFO L482 AbstractCegarLoop]: Abstraction has 1715 states and 4102 transitions. [2021-06-01 16:49:41,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4102 transitions. [2021-06-01 16:49:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:41,376 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:41,376 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:41,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-01 16:49:41,376 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:41,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:41,376 INFO L82 PathProgramCache]: Analyzing trace with hash -130738933, now seen corresponding path program 205 times [2021-06-01 16:49:41,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:41,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256146490] [2021-06-01 16:49:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:41,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:41,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256146490] [2021-06-01 16:49:41,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256146490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:41,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:41,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:41,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734693407] [2021-06-01 16:49:41,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:41,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:41,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:41,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:41,980 INFO L87 Difference]: Start difference. First operand 1715 states and 4102 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:44,092 INFO L93 Difference]: Finished difference Result 1830 states and 4313 transitions. [2021-06-01 16:49:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:49:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:44,093 INFO L225 Difference]: With dead ends: 1830 [2021-06-01 16:49:44,094 INFO L226 Difference]: Without dead ends: 1725 [2021-06-01 16:49:44,094 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1882.9ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:49:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2021-06-01 16:49:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1707. [2021-06-01 16:49:44,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 2.392731535756155) internal successors, (4082), 1706 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:44,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 4082 transitions. [2021-06-01 16:49:44,107 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 4082 transitions. Word has length 119 [2021-06-01 16:49:44,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:44,108 INFO L482 AbstractCegarLoop]: Abstraction has 1707 states and 4082 transitions. [2021-06-01 16:49:44,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:44,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 4082 transitions. [2021-06-01 16:49:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:44,109 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:44,109 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:44,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-01 16:49:44,109 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:44,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:44,109 INFO L82 PathProgramCache]: Analyzing trace with hash 753929315, now seen corresponding path program 206 times [2021-06-01 16:49:44,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:44,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812503895] [2021-06-01 16:49:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:44,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:44,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812503895] [2021-06-01 16:49:44,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812503895] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:44,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:44,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:44,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516576304] [2021-06-01 16:49:44,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:44,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:44,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:44,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:44,692 INFO L87 Difference]: Start difference. First operand 1707 states and 4082 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:46,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:46,992 INFO L93 Difference]: Finished difference Result 1910 states and 4491 transitions. [2021-06-01 16:49:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:49:46,993 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:46,994 INFO L225 Difference]: With dead ends: 1910 [2021-06-01 16:49:46,994 INFO L226 Difference]: Without dead ends: 1775 [2021-06-01 16:49:46,994 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2057.9ms TimeCoverageRelationStatistics Valid=468, Invalid=2394, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:49:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2021-06-01 16:49:47,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1713. [2021-06-01 16:49:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 2.3896028037383177) internal successors, (4091), 1712 states have internal predecessors, (4091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 4091 transitions. [2021-06-01 16:49:47,008 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 4091 transitions. Word has length 119 [2021-06-01 16:49:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:47,008 INFO L482 AbstractCegarLoop]: Abstraction has 1713 states and 4091 transitions. [2021-06-01 16:49:47,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 4091 transitions. [2021-06-01 16:49:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:47,009 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:47,009 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:47,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-01 16:49:47,009 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:47,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:47,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1534780787, now seen corresponding path program 207 times [2021-06-01 16:49:47,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:47,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185976150] [2021-06-01 16:49:47,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:47,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:47,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185976150] [2021-06-01 16:49:47,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185976150] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:47,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:47,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:47,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991044146] [2021-06-01 16:49:47,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:47,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:47,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:47,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:47,582 INFO L87 Difference]: Start difference. First operand 1713 states and 4091 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:49,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:49,772 INFO L93 Difference]: Finished difference Result 1870 states and 4393 transitions. [2021-06-01 16:49:49,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:49:49,772 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:49,773 INFO L225 Difference]: With dead ends: 1870 [2021-06-01 16:49:49,774 INFO L226 Difference]: Without dead ends: 1765 [2021-06-01 16:49:49,774 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1952.4ms TimeCoverageRelationStatistics Valid=458, Invalid=2298, Unknown=0, NotChecked=0, Total=2756 [2021-06-01 16:49:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2021-06-01 16:49:49,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1715. [2021-06-01 16:49:49,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.3885647607934657) internal successors, (4094), 1714 states have internal predecessors, (4094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:49,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4094 transitions. [2021-06-01 16:49:49,787 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4094 transitions. Word has length 119 [2021-06-01 16:49:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:49,787 INFO L482 AbstractCegarLoop]: Abstraction has 1715 states and 4094 transitions. [2021-06-01 16:49:49,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:49,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4094 transitions. [2021-06-01 16:49:49,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:49,789 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:49,789 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:49,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-01 16:49:49,789 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:49,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1948549183, now seen corresponding path program 208 times [2021-06-01 16:49:49,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:49,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163884104] [2021-06-01 16:49:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:50,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:50,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163884104] [2021-06-01 16:49:50,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163884104] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:50,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:50,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:50,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107903686] [2021-06-01 16:49:50,363 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:50,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:50,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:50,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:50,364 INFO L87 Difference]: Start difference. First operand 1715 states and 4094 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:51,623 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-01 16:49:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:52,467 INFO L93 Difference]: Finished difference Result 1826 states and 4297 transitions. [2021-06-01 16:49:52,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:49:52,467 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:52,468 INFO L225 Difference]: With dead ends: 1826 [2021-06-01 16:49:52,468 INFO L226 Difference]: Without dead ends: 1703 [2021-06-01 16:49:52,468 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1893.9ms TimeCoverageRelationStatistics Valid=453, Invalid=2199, Unknown=0, NotChecked=0, Total=2652 [2021-06-01 16:49:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-06-01 16:49:52,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1689. [2021-06-01 16:49:52,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 2.3862559241706163) internal successors, (4028), 1688 states have internal predecessors, (4028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 4028 transitions. [2021-06-01 16:49:52,482 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 4028 transitions. Word has length 119 [2021-06-01 16:49:52,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:52,482 INFO L482 AbstractCegarLoop]: Abstraction has 1689 states and 4028 transitions. [2021-06-01 16:49:52,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 4028 transitions. [2021-06-01 16:49:52,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:52,484 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:52,484 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:52,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-01 16:49:52,484 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:52,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:52,484 INFO L82 PathProgramCache]: Analyzing trace with hash -574537049, now seen corresponding path program 209 times [2021-06-01 16:49:52,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:52,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171303196] [2021-06-01 16:49:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:53,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:53,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171303196] [2021-06-01 16:49:53,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171303196] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:53,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:53,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:53,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518804237] [2021-06-01 16:49:53,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:53,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:53,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:53,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:53,055 INFO L87 Difference]: Start difference. First operand 1689 states and 4028 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:55,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:55,547 INFO L93 Difference]: Finished difference Result 2136 states and 5083 transitions. [2021-06-01 16:49:55,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:49:55,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:55,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:55,548 INFO L225 Difference]: With dead ends: 2136 [2021-06-01 16:49:55,548 INFO L226 Difference]: Without dead ends: 2031 [2021-06-01 16:49:55,549 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2191.5ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:49:55,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2021-06-01 16:49:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 1749. [2021-06-01 16:49:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1748 states have (on average 2.3975972540045767) internal successors, (4191), 1748 states have internal predecessors, (4191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:55,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 4191 transitions. [2021-06-01 16:49:55,563 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 4191 transitions. Word has length 119 [2021-06-01 16:49:55,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:55,563 INFO L482 AbstractCegarLoop]: Abstraction has 1749 states and 4191 transitions. [2021-06-01 16:49:55,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 4191 transitions. [2021-06-01 16:49:55,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:55,564 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:55,565 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:55,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-01 16:49:55,565 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:55,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:55,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1334808313, now seen corresponding path program 210 times [2021-06-01 16:49:55,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:55,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106556679] [2021-06-01 16:49:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:56,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:56,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106556679] [2021-06-01 16:49:56,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106556679] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:56,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:56,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:56,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536207143] [2021-06-01 16:49:56,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:56,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:56,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:56,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:56,130 INFO L87 Difference]: Start difference. First operand 1749 states and 4191 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:57,814 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-06-01 16:49:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:49:58,600 INFO L93 Difference]: Finished difference Result 2098 states and 4997 transitions. [2021-06-01 16:49:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:49:58,601 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:49:58,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:49:58,602 INFO L225 Difference]: With dead ends: 2098 [2021-06-01 16:49:58,602 INFO L226 Difference]: Without dead ends: 2003 [2021-06-01 16:49:58,602 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2212.0ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:49:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-06-01 16:49:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1917. [2021-06-01 16:49:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1916 states have (on average 2.4055323590814197) internal successors, (4609), 1916 states have internal predecessors, (4609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 4609 transitions. [2021-06-01 16:49:58,618 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 4609 transitions. Word has length 119 [2021-06-01 16:49:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:49:58,618 INFO L482 AbstractCegarLoop]: Abstraction has 1917 states and 4609 transitions. [2021-06-01 16:49:58,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:49:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 4609 transitions. [2021-06-01 16:49:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:49:58,620 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:49:58,620 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:49:58,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-01 16:49:58,620 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:49:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:49:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1809514615, now seen corresponding path program 211 times [2021-06-01 16:49:58,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:49:58,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414456755] [2021-06-01 16:49:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:49:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:49:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:49:59,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:49:59,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414456755] [2021-06-01 16:49:59,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414456755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:49:59,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:49:59,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:49:59,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680876255] [2021-06-01 16:49:59,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:49:59,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:49:59,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:49:59,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:49:59,185 INFO L87 Difference]: Start difference. First operand 1917 states and 4609 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:01,893 INFO L93 Difference]: Finished difference Result 2321 states and 5500 transitions. [2021-06-01 16:50:01,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-01 16:50:01,893 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:01,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:01,894 INFO L225 Difference]: With dead ends: 2321 [2021-06-01 16:50:01,894 INFO L226 Difference]: Without dead ends: 1766 [2021-06-01 16:50:01,895 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2338.8ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:50:01,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-06-01 16:50:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1689. [2021-06-01 16:50:01,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 2.3507109004739335) internal successors, (3968), 1688 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 3968 transitions. [2021-06-01 16:50:01,908 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 3968 transitions. Word has length 119 [2021-06-01 16:50:01,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:01,909 INFO L482 AbstractCegarLoop]: Abstraction has 1689 states and 3968 transitions. [2021-06-01 16:50:01,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 3968 transitions. [2021-06-01 16:50:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:01,910 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:01,910 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:01,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-01 16:50:01,910 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:01,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:01,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1743855013, now seen corresponding path program 212 times [2021-06-01 16:50:01,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:01,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445769370] [2021-06-01 16:50:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:02,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:02,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:02,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445769370] [2021-06-01 16:50:02,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445769370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:02,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:02,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:02,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399853060] [2021-06-01 16:50:02,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:02,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:02,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:02,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:02,506 INFO L87 Difference]: Start difference. First operand 1689 states and 3968 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:04,457 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-06-01 16:50:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:04,998 INFO L93 Difference]: Finished difference Result 1868 states and 4325 transitions. [2021-06-01 16:50:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:50:04,998 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:04,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:05,000 INFO L225 Difference]: With dead ends: 1868 [2021-06-01 16:50:05,000 INFO L226 Difference]: Without dead ends: 1553 [2021-06-01 16:50:05,000 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2238.9ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:50:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-06-01 16:50:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1509. [2021-06-01 16:50:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.312997347480106) internal successors, (3488), 1508 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:05,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 3488 transitions. [2021-06-01 16:50:05,012 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 3488 transitions. Word has length 119 [2021-06-01 16:50:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:05,012 INFO L482 AbstractCegarLoop]: Abstraction has 1509 states and 3488 transitions. [2021-06-01 16:50:05,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 3488 transitions. [2021-06-01 16:50:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:05,013 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:05,013 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:05,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-01 16:50:05,014 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:05,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1001689519, now seen corresponding path program 213 times [2021-06-01 16:50:05,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:05,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041816106] [2021-06-01 16:50:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:05,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:05,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041816106] [2021-06-01 16:50:05,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041816106] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:05,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:05,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:05,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487271906] [2021-06-01 16:50:05,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:05,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:05,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:05,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:05,587 INFO L87 Difference]: Start difference. First operand 1509 states and 3488 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:08,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:08,060 INFO L93 Difference]: Finished difference Result 1700 states and 3863 transitions. [2021-06-01 16:50:08,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:50:08,061 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:08,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:08,062 INFO L225 Difference]: With dead ends: 1700 [2021-06-01 16:50:08,062 INFO L226 Difference]: Without dead ends: 1595 [2021-06-01 16:50:08,063 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2300.3ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:50:08,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2021-06-01 16:50:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1509. [2021-06-01 16:50:08,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.309681697612732) internal successors, (3483), 1508 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 3483 transitions. [2021-06-01 16:50:08,075 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 3483 transitions. Word has length 119 [2021-06-01 16:50:08,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:08,075 INFO L482 AbstractCegarLoop]: Abstraction has 1509 states and 3483 transitions. [2021-06-01 16:50:08,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:08,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 3483 transitions. [2021-06-01 16:50:08,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:08,077 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:08,077 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:08,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-01 16:50:08,077 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:08,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:08,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1761960783, now seen corresponding path program 214 times [2021-06-01 16:50:08,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:08,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792805108] [2021-06-01 16:50:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:08,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:08,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792805108] [2021-06-01 16:50:08,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792805108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:08,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:08,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:08,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371781319] [2021-06-01 16:50:08,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:08,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:08,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:08,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:08,624 INFO L87 Difference]: Start difference. First operand 1509 states and 3483 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:11,011 INFO L93 Difference]: Finished difference Result 1900 states and 4376 transitions. [2021-06-01 16:50:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:50:11,012 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:11,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:11,014 INFO L225 Difference]: With dead ends: 1900 [2021-06-01 16:50:11,014 INFO L226 Difference]: Without dead ends: 1805 [2021-06-01 16:50:11,014 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2154.0ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:50:11,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2021-06-01 16:50:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1677. [2021-06-01 16:50:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1676 states have (on average 2.3275656324582337) internal successors, (3901), 1676 states have internal predecessors, (3901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 3901 transitions. [2021-06-01 16:50:11,028 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 3901 transitions. Word has length 119 [2021-06-01 16:50:11,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:11,029 INFO L482 AbstractCegarLoop]: Abstraction has 1677 states and 3901 transitions. [2021-06-01 16:50:11,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 3901 transitions. [2021-06-01 16:50:11,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:11,030 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:11,030 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:11,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-01 16:50:11,030 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:11,031 INFO L82 PathProgramCache]: Analyzing trace with hash 2058300211, now seen corresponding path program 215 times [2021-06-01 16:50:11,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:11,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717961790] [2021-06-01 16:50:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:11,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:11,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717961790] [2021-06-01 16:50:11,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717961790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:11,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:11,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:11,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636013225] [2021-06-01 16:50:11,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:11,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:11,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:11,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:11,630 INFO L87 Difference]: Start difference. First operand 1677 states and 3901 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:14,216 INFO L93 Difference]: Finished difference Result 2123 states and 4879 transitions. [2021-06-01 16:50:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-01 16:50:14,216 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:14,218 INFO L225 Difference]: With dead ends: 2123 [2021-06-01 16:50:14,218 INFO L226 Difference]: Without dead ends: 1568 [2021-06-01 16:50:14,218 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 2371.7ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-01 16:50:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2021-06-01 16:50:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1449. [2021-06-01 16:50:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.2845303867403315) internal successors, (3308), 1448 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:14,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3308 transitions. [2021-06-01 16:50:14,230 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3308 transitions. Word has length 119 [2021-06-01 16:50:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:14,230 INFO L482 AbstractCegarLoop]: Abstraction has 1449 states and 3308 transitions. [2021-06-01 16:50:14,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3308 transitions. [2021-06-01 16:50:14,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:14,231 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:14,232 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:14,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-01 16:50:14,232 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:14,232 INFO L82 PathProgramCache]: Analyzing trace with hash 581181669, now seen corresponding path program 216 times [2021-06-01 16:50:14,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:14,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180327666] [2021-06-01 16:50:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:14,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:14,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180327666] [2021-06-01 16:50:14,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180327666] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:14,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:14,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:14,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775441682] [2021-06-01 16:50:14,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:14,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:14,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:14,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:14,816 INFO L87 Difference]: Start difference. First operand 1449 states and 3308 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:17,256 INFO L93 Difference]: Finished difference Result 1602 states and 3600 transitions. [2021-06-01 16:50:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:50:17,256 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:17,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:17,257 INFO L225 Difference]: With dead ends: 1602 [2021-06-01 16:50:17,257 INFO L226 Difference]: Without dead ends: 1497 [2021-06-01 16:50:17,258 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2275.5ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:50:17,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-06-01 16:50:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1451. [2021-06-01 16:50:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 2.283448275862069) internal successors, (3311), 1450 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 3311 transitions. [2021-06-01 16:50:17,269 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 3311 transitions. Word has length 119 [2021-06-01 16:50:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:17,269 INFO L482 AbstractCegarLoop]: Abstraction has 1451 states and 3311 transitions. [2021-06-01 16:50:17,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 3311 transitions. [2021-06-01 16:50:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:17,270 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:17,270 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:17,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-01 16:50:17,270 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:17,271 INFO L82 PathProgramCache]: Analyzing trace with hash 639263281, now seen corresponding path program 217 times [2021-06-01 16:50:17,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:17,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72249174] [2021-06-01 16:50:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:17,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:17,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72249174] [2021-06-01 16:50:17,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72249174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:17,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:17,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:17,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343473704] [2021-06-01 16:50:17,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:17,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:17,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:17,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:17,843 INFO L87 Difference]: Start difference. First operand 1451 states and 3311 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:19,270 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-01 16:50:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:20,190 INFO L93 Difference]: Finished difference Result 1560 states and 3507 transitions. [2021-06-01 16:50:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 16:50:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:20,191 INFO L225 Difference]: With dead ends: 1560 [2021-06-01 16:50:20,192 INFO L226 Difference]: Without dead ends: 1461 [2021-06-01 16:50:20,192 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2150.3ms TimeCoverageRelationStatistics Valid=508, Invalid=2462, Unknown=0, NotChecked=0, Total=2970 [2021-06-01 16:50:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-06-01 16:50:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1449. [2021-06-01 16:50:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.283839779005525) internal successors, (3307), 1448 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:20,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3307 transitions. [2021-06-01 16:50:20,203 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3307 transitions. Word has length 119 [2021-06-01 16:50:20,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:20,203 INFO L482 AbstractCegarLoop]: Abstraction has 1449 states and 3307 transitions. [2021-06-01 16:50:20,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:20,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3307 transitions. [2021-06-01 16:50:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:20,205 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:20,205 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:20,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-01 16:50:20,205 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:20,205 INFO L82 PathProgramCache]: Analyzing trace with hash 38569189, now seen corresponding path program 218 times [2021-06-01 16:50:20,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:20,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829508693] [2021-06-01 16:50:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:50:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:50:20,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:50:20,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829508693] [2021-06-01 16:50:20,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829508693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:50:20,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:50:20,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:50:20,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552041959] [2021-06-01 16:50:20,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:50:20,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:50:20,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:50:20,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:50:20,782 INFO L87 Difference]: Start difference. First operand 1449 states and 3307 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:22,442 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-01 16:50:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:50:23,276 INFO L93 Difference]: Finished difference Result 1592 states and 3578 transitions. [2021-06-01 16:50:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-01 16:50:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-01 16:50:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:50:23,278 INFO L225 Difference]: With dead ends: 1592 [2021-06-01 16:50:23,278 INFO L226 Difference]: Without dead ends: 1497 [2021-06-01 16:50:23,278 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2306.5ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-06-01 16:50:23,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-06-01 16:50:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1449. [2021-06-01 16:50:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.274171270718232) internal successors, (3293), 1448 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3293 transitions. [2021-06-01 16:50:23,289 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3293 transitions. Word has length 119 [2021-06-01 16:50:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:50:23,290 INFO L482 AbstractCegarLoop]: Abstraction has 1449 states and 3293 transitions. [2021-06-01 16:50:23,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:50:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3293 transitions. [2021-06-01 16:50:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-01 16:50:23,291 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:50:23,291 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:50:23,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-01 16:50:23,291 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:50:23,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:50:23,291 INFO L82 PathProgramCache]: Analyzing trace with hash -436137113, now seen corresponding path program 219 times [2021-06-01 16:50:23,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:50:23,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660951885] [2021-06-01 16:50:23,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:50:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-06-01 16:50:23,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-01 16:50:23,456 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-01 16:50:23,457 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-01 16:50:23,458 WARN L196 ceAbstractionStarter]: Timeout [2021-06-01 16:50:23,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 04:50:23 BasicIcfg [2021-06-01 16:50:23,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-01 16:50:23,459 INFO L168 Benchmark]: Toolchain (without parser) took 732894.03 ms. Allocated memory was 348.1 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 309.3 MB in the beginning and 854.1 MB in the end (delta: -544.8 MB). Peak memory consumption was 459.2 MB. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 329.4 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 829.76 ms. Allocated memory is still 348.1 MB. Free memory was 309.2 MB in the beginning and 296.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.71 ms. Allocated memory is still 348.1 MB. Free memory was 296.0 MB in the beginning and 292.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L168 Benchmark]: Boogie Preprocessor took 37.99 ms. Allocated memory is still 348.1 MB. Free memory was 292.9 MB in the beginning and 289.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L168 Benchmark]: RCFGBuilder took 458.37 ms. Allocated memory is still 348.1 MB. Free memory was 289.7 MB in the beginning and 240.4 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L168 Benchmark]: TraceAbstraction took 731516.38 ms. Allocated memory was 348.1 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 240.4 MB in the beginning and 854.1 MB in the end (delta: -613.7 MB). Peak memory consumption was 387.7 MB. Max. memory is 16.0 GB. [2021-06-01 16:50:23,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 329.4 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 829.76 ms. Allocated memory is still 348.1 MB. Free memory was 309.2 MB in the beginning and 296.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.71 ms. Allocated memory is still 348.1 MB. Free memory was 296.0 MB in the beginning and 292.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.99 ms. Allocated memory is still 348.1 MB. Free memory was 292.9 MB in the beginning and 289.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 458.37 ms. Allocated memory is still 348.1 MB. Free memory was 289.7 MB in the beginning and 240.4 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 731516.38 ms. Allocated memory was 348.1 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 240.4 MB in the beginning and 854.1 MB in the end (delta: -613.7 MB). Peak memory consumption was 387.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 118 interpolants. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 118 interpolants. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 118 interpolants. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 118 interpolants. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 118 interpolants. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 118 interpolants. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 731438.3ms, OverallIterations: 261, TraceHistogramMax: 1, EmptinessCheckTime: 767.6ms, AutomataDifference: 576118.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 222.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 50191 SDtfs, 235207 SDslu, 581619 SDs, 0 SdLazy, 338783 SolverSat, 24050 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 142985.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14241 GetRequests, 843 SyntacticMatches, 558 SemanticMatches, 12840 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120221 ImplicationChecksByTransitivity, 503220.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8253occurred in iteration=4, InterpolantAutomatonStates: 8024, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10929.6ms AutomataMinimizationTime, 260 MinimizatonAttempts, 209961 StatesRemovedByMinimization, 255 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 362.2ms SsaConstructionTime, 3393.6ms SatisfiabilityAnalysisTime, 137636.4ms InterpolantComputationTime, 30431 NumberOfCodeBlocks, 30431 NumberOfCodeBlocksAsserted, 260 NumberOfCheckSat, 30171 ConstructedInterpolants, 0 QuantifiedInterpolants, 638454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 260 InterpolantComputations, 260 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown