/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_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-01 16:38:11,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-01 16:38:11,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-01 16:38:11,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-01 16:38:11,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-01 16:38:11,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-01 16:38:11,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-01 16:38:11,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-01 16:38:11,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-01 16:38:11,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-01 16:38:11,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-01 16:38:11,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-01 16:38:11,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-01 16:38:11,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-01 16:38:11,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-01 16:38:11,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-01 16:38:11,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-01 16:38:11,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-01 16:38:11,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-01 16:38:11,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-01 16:38:11,379 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 16:38:11,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-01 16:38:11,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-01 16:38:11,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-01 16:38:11,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-01 16:38:11,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-01 16:38:11,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-01 16:38:11,401 INFO L138 SettingsManager]: * Use SBE=true [2021-06-01 16:38:11,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-01 16:38:11,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-01 16:38:11,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-01 16:38:11,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-01 16:38:11,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-01 16:38:11,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-01 16:38:11,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-01 16:38:11,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-01 16:38:11,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-01 16:38:11,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 16:38:11,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-01 16:38:11,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-01 16:38:11,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-01 16:38:11,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-01 16:38:11,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-01 16:38:11,404 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-01 16:38:11,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-01 16:38:11,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-01 16:38:11,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-01 16:38:11,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-01 16:38:11,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-01 16:38:11,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-01 16:38:11,646 INFO L275 PluginConnector]: CDTParser initialized [2021-06-01 16:38:11,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-01 16:38:11,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044ae1d7e/bb4ab8d1c4c0422eb69dd26ac6e76320/FLAGf7c67321c [2021-06-01 16:38:12,183 INFO L306 CDTParser]: Found 1 translation units. [2021-06-01 16:38:12,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-01 16:38:12,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044ae1d7e/bb4ab8d1c4c0422eb69dd26ac6e76320/FLAGf7c67321c [2021-06-01 16:38:12,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044ae1d7e/bb4ab8d1c4c0422eb69dd26ac6e76320 [2021-06-01 16:38:12,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-01 16:38:12,224 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-01 16:38:12,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-01 16:38:12,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-01 16:38:12,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-01 16:38:12,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ec949d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12, skipping insertion in model container [2021-06-01 16:38:12,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-01 16:38:12,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-01 16:38:12,391 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-01 16:38:12,675 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_2-container_of-global.i[75009,75022] [2021-06-01 16:38:12,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 16:38:12,693 INFO L203 MainTranslator]: Completed pre-run [2021-06-01 16:38:12,700 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-01 16:38:12,732 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_2-container_of-global.i[75009,75022] [2021-06-01 16:38:12,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 16:38:12,907 INFO L208 MainTranslator]: Completed translation [2021-06-01 16:38:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12 WrapperNode [2021-06-01 16:38:12,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-01 16:38:12,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-01 16:38:12,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-01 16:38:12,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-01 16:38:12,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-01 16:38:12,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-01 16:38:12,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-01 16:38:12,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-01 16:38:12,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (1/1) ... [2021-06-01 16:38:12,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-01 16:38:12,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-01 16:38:12,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-01 16:38:12,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-01 16:38:12,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (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 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-01 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-01 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-01 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-01 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-01 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-01 16:38:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-01 16:38:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-01 16:38:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-01 16:38:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-01 16:38:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-01 16:38:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-01 16:38:13,059 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 16:38:13,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-01 16:38:13,599 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-01 16:38:13,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:38:13 BoogieIcfgContainer [2021-06-01 16:38:13,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-01 16:38:13,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-01 16:38:13,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-01 16:38:13,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-01 16:38:13,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 04:38:12" (1/3) ... [2021-06-01 16:38:13,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a791481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:38:13, skipping insertion in model container [2021-06-01 16:38:13,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:38:12" (2/3) ... [2021-06-01 16:38:13,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a791481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:38:13, skipping insertion in model container [2021-06-01 16:38:13,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:38:13" (3/3) ... [2021-06-01 16:38:13,607 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-06-01 16:38:13,611 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-01 16:38:13,611 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-01 16:38:13,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-01 16:38:13,612 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,643 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,645 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,646 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,647 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,647 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,647 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,647 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,647 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,649 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,650 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,651 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,652 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,654 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,655 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,656 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,656 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,658 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,660 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,665 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,666 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,666 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,667 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:38:13,674 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-01 16:38:13,688 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-01 16:38:13,706 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 16:38:13,706 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 16:38:13,706 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 16:38:13,706 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 16:38:13,706 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 16:38:13,706 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 16:38:13,706 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 16:38:13,706 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-01 16:38:13,715 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 162 transitions, 346 flow [2021-06-01 16:38:13,821 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4278 states, 4267 states have (on average 2.7492383407546286) internal successors, (11731), 4277 states have internal predecessors, (11731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 4278 states, 4267 states have (on average 2.7492383407546286) internal successors, (11731), 4277 states have internal predecessors, (11731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:13,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-01 16:38:13,835 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:13,835 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:13,836 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 16:38:13,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:13,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1369970770, now seen corresponding path program 1 times [2021-06-01 16:38:13,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:13,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61434115] [2021-06-01 16:38:13,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:14,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:14,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61434115] [2021-06-01 16:38:14,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61434115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:14,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:14,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:14,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483308458] [2021-06-01 16:38:14,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:14,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:14,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:14,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:14,153 INFO L87 Difference]: Start difference. First operand has 4278 states, 4267 states have (on average 2.7492383407546286) internal successors, (11731), 4277 states have internal predecessors, (11731), 0 states have call successors, (0), 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 16:38:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:14,298 INFO L93 Difference]: Finished difference Result 4075 states and 10961 transitions. [2021-06-01 16:38:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-01 16:38:14,299 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 16:38:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:14,319 INFO L225 Difference]: With dead ends: 4075 [2021-06-01 16:38:14,320 INFO L226 Difference]: Without dead ends: 3358 [2021-06-01 16:38:14,320 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-01 16:38:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-06-01 16:38:14,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3357. [2021-06-01 16:38:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3357 states, 3350 states have (on average 2.681492537313433) internal successors, (8983), 3356 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 8983 transitions. [2021-06-01 16:38:14,434 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 8983 transitions. Word has length 36 [2021-06-01 16:38:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:14,434 INFO L482 AbstractCegarLoop]: Abstraction has 3357 states and 8983 transitions. [2021-06-01 16:38:14,435 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 16:38:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 8983 transitions. [2021-06-01 16:38:14,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-01 16:38:14,435 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:14,435 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:14,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-01 16:38:14,436 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 16:38:14,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:14,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1499060535, now seen corresponding path program 1 times [2021-06-01 16:38:14,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:14,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675360134] [2021-06-01 16:38:14,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:14,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:14,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675360134] [2021-06-01 16:38:14,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675360134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:14,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:14,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:14,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900604232] [2021-06-01 16:38:14,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:14,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:14,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:14,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:14,512 INFO L87 Difference]: Start difference. First operand 3357 states and 8983 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 16:38:14,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:14,618 INFO L93 Difference]: Finished difference Result 3359 states and 8985 transitions. [2021-06-01 16:38:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:38:14,618 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 16:38:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:14,631 INFO L225 Difference]: With dead ends: 3359 [2021-06-01 16:38:14,631 INFO L226 Difference]: Without dead ends: 3359 [2021-06-01 16:38:14,632 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 45.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-01 16:38:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2021-06-01 16:38:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2021-06-01 16:38:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3349 states have (on average 2.6816960286652733) internal successors, (8981), 3354 states have internal predecessors, (8981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:14,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 8981 transitions. [2021-06-01 16:38:14,692 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 8981 transitions. Word has length 42 [2021-06-01 16:38:14,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:14,692 INFO L482 AbstractCegarLoop]: Abstraction has 3355 states and 8981 transitions. [2021-06-01 16:38:14,692 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 16:38:14,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 8981 transitions. [2021-06-01 16:38:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-01 16:38:14,694 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:14,694 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:14,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-01 16:38:14,694 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 16:38:14,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:14,694 INFO L82 PathProgramCache]: Analyzing trace with hash 709377487, now seen corresponding path program 1 times [2021-06-01 16:38:14,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:14,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373381509] [2021-06-01 16:38:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:14,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:14,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373381509] [2021-06-01 16:38:14,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373381509] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:14,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:14,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:14,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128287404] [2021-06-01 16:38:14,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:14,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:14,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:14,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:14,764 INFO L87 Difference]: Start difference. First operand 3355 states and 8981 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 16:38:15,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:15,003 INFO L93 Difference]: Finished difference Result 4878 states and 13059 transitions. [2021-06-01 16:38:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-01 16:38:15,004 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 16:38:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:15,020 INFO L225 Difference]: With dead ends: 4878 [2021-06-01 16:38:15,021 INFO L226 Difference]: Without dead ends: 4878 [2021-06-01 16:38:15,021 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:15,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2021-06-01 16:38:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 3753. [2021-06-01 16:38:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 3748 states have (on average 2.683831376734258) internal successors, (10059), 3752 states have internal predecessors, (10059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 10059 transitions. [2021-06-01 16:38:15,124 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 10059 transitions. Word has length 60 [2021-06-01 16:38:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:15,126 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 10059 transitions. [2021-06-01 16:38:15,126 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 16:38:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 10059 transitions. [2021-06-01 16:38:15,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 16:38:15,131 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:15,131 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:15,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-01 16:38:15,131 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 16:38:15,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:15,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1924610094, now seen corresponding path program 1 times [2021-06-01 16:38:15,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:15,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615536318] [2021-06-01 16:38:15,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:15,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:15,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615536318] [2021-06-01 16:38:15,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615536318] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:15,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:15,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-01 16:38:15,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074095658] [2021-06-01 16:38:15,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-01 16:38:15,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:15,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-01 16:38:15,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-01 16:38:15,253 INFO L87 Difference]: Start difference. First operand 3753 states and 10059 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 16:38:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:15,440 INFO L93 Difference]: Finished difference Result 5276 states and 14062 transitions. [2021-06-01 16:38:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:38:15,440 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 16:38:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:15,454 INFO L225 Difference]: With dead ends: 5276 [2021-06-01 16:38:15,454 INFO L226 Difference]: Without dead ends: 4475 [2021-06-01 16:38:15,454 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 56.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-01 16:38:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2021-06-01 16:38:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4325. [2021-06-01 16:38:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4321 states have (on average 2.6931265910668825) internal successors, (11637), 4324 states have internal predecessors, (11637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 11637 transitions. [2021-06-01 16:38:15,533 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 11637 transitions. Word has length 66 [2021-06-01 16:38:15,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:15,533 INFO L482 AbstractCegarLoop]: Abstraction has 4325 states and 11637 transitions. [2021-06-01 16:38:15,533 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 16:38:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 11637 transitions. [2021-06-01 16:38:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-06-01 16:38:15,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:15,537 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] [2021-06-01 16:38:15,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-01 16:38:15,537 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 16:38:15,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:15,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1721881747, now seen corresponding path program 1 times [2021-06-01 16:38:15,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:15,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120847615] [2021-06-01 16:38:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:15,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:15,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120847615] [2021-06-01 16:38:15,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120847615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:15,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:15,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-01 16:38:15,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821009352] [2021-06-01 16:38:15,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-01 16:38:15,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:15,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-01 16:38:15,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-01 16:38:15,591 INFO L87 Difference]: Start difference. First operand 4325 states and 11637 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:15,616 INFO L93 Difference]: Finished difference Result 1631 states and 4196 transitions. [2021-06-01 16:38:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-01 16:38:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-06-01 16:38:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:15,621 INFO L225 Difference]: With dead ends: 1631 [2021-06-01 16:38:15,621 INFO L226 Difference]: Without dead ends: 1631 [2021-06-01 16:38:15,621 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-01 16:38:15,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2021-06-01 16:38:15,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2021-06-01 16:38:15,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 2.575813382443217) internal successors, (4196), 1630 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 4196 transitions. [2021-06-01 16:38:15,645 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 4196 transitions. Word has length 78 [2021-06-01 16:38:15,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:15,646 INFO L482 AbstractCegarLoop]: Abstraction has 1631 states and 4196 transitions. [2021-06-01 16:38:15,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 4196 transitions. [2021-06-01 16:38:15,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:15,648 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:15,648 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:15,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-01 16:38:15,649 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 16:38:15,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:15,649 INFO L82 PathProgramCache]: Analyzing trace with hash -735382200, now seen corresponding path program 1 times [2021-06-01 16:38:15,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:15,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394845038] [2021-06-01 16:38:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:16,234 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 16:38:16,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:16,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394845038] [2021-06-01 16:38:16,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394845038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:16,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:16,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 16:38:16,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389158210] [2021-06-01 16:38:16,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 16:38:16,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:16,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 16:38:16,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-06-01 16:38:16,236 INFO L87 Difference]: Start difference. First operand 1631 states and 4196 transitions. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:18,728 INFO L93 Difference]: Finished difference Result 2676 states and 6959 transitions. [2021-06-01 16:38:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-01 16:38:18,728 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:18,733 INFO L225 Difference]: With dead ends: 2676 [2021-06-01 16:38:18,733 INFO L226 Difference]: Without dead ends: 2676 [2021-06-01 16:38:18,733 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1838.7ms TimeCoverageRelationStatistics Valid=842, Invalid=2464, Unknown=0, NotChecked=0, Total=3306 [2021-06-01 16:38:18,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2021-06-01 16:38:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2566. [2021-06-01 16:38:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 2.6326053042121687) internal successors, (6750), 2565 states have internal predecessors, (6750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 6750 transitions. [2021-06-01 16:38:18,769 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 6750 transitions. Word has length 105 [2021-06-01 16:38:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:18,770 INFO L482 AbstractCegarLoop]: Abstraction has 2566 states and 6750 transitions. [2021-06-01 16:38:18,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 6750 transitions. [2021-06-01 16:38:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:18,773 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:18,774 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:18,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-01 16:38:18,774 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 16:38:18,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:18,774 INFO L82 PathProgramCache]: Analyzing trace with hash 488844778, now seen corresponding path program 1 times [2021-06-01 16:38:18,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:18,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375501961] [2021-06-01 16:38:18,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:19,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:19,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375501961] [2021-06-01 16:38:19,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375501961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:19,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:19,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:19,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822166450] [2021-06-01 16:38:19,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:19,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:19,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:19,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:19,059 INFO L87 Difference]: Start difference. First operand 2566 states and 6750 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:19,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:19,662 INFO L93 Difference]: Finished difference Result 3789 states and 9757 transitions. [2021-06-01 16:38:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-01 16:38:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:19,669 INFO L225 Difference]: With dead ends: 3789 [2021-06-01 16:38:19,669 INFO L226 Difference]: Without dead ends: 3789 [2021-06-01 16:38:19,669 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 445.4ms TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-06-01 16:38:19,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2021-06-01 16:38:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3036. [2021-06-01 16:38:19,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3034 states have (on average 2.584377059986816) internal successors, (7841), 3035 states have internal predecessors, (7841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:19,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 7841 transitions. [2021-06-01 16:38:19,719 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 7841 transitions. Word has length 105 [2021-06-01 16:38:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:19,720 INFO L482 AbstractCegarLoop]: Abstraction has 3036 states and 7841 transitions. [2021-06-01 16:38:19,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 7841 transitions. [2021-06-01 16:38:19,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:19,724 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:19,724 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:19,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-01 16:38:19,724 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 16:38:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:19,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1787721726, now seen corresponding path program 2 times [2021-06-01 16:38:19,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:19,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768995157] [2021-06-01 16:38:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:19,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:19,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768995157] [2021-06-01 16:38:19,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768995157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:19,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:19,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:19,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318389272] [2021-06-01 16:38:19,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:19,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:19,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:19,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:19,938 INFO L87 Difference]: Start difference. First operand 3036 states and 7841 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:20,614 INFO L93 Difference]: Finished difference Result 4077 states and 10298 transitions. [2021-06-01 16:38:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:20,620 INFO L225 Difference]: With dead ends: 4077 [2021-06-01 16:38:20,620 INFO L226 Difference]: Without dead ends: 4077 [2021-06-01 16:38:20,621 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 446.1ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:20,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2021-06-01 16:38:20,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3066. [2021-06-01 16:38:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.5842036553524803) internal successors, (7918), 3065 states have internal predecessors, (7918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 7918 transitions. [2021-06-01 16:38:20,684 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 7918 transitions. Word has length 105 [2021-06-01 16:38:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:20,684 INFO L482 AbstractCegarLoop]: Abstraction has 3066 states and 7918 transitions. [2021-06-01 16:38:20,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 7918 transitions. [2021-06-01 16:38:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:20,689 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:20,689 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:20,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-01 16:38:20,690 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 16:38:20,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:20,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1759874518, now seen corresponding path program 3 times [2021-06-01 16:38:20,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:20,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606389441] [2021-06-01 16:38:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:21,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:21,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606389441] [2021-06-01 16:38:21,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606389441] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:21,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:21,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 16:38:21,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588746999] [2021-06-01 16:38:21,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 16:38:21,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:21,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 16:38:21,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-06-01 16:38:21,154 INFO L87 Difference]: Start difference. First operand 3066 states and 7918 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:22,713 INFO L93 Difference]: Finished difference Result 4299 states and 10825 transitions. [2021-06-01 16:38:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-01 16:38:22,713 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:22,719 INFO L225 Difference]: With dead ends: 4299 [2021-06-01 16:38:22,719 INFO L226 Difference]: Without dead ends: 4299 [2021-06-01 16:38:22,720 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1294.8ms TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 16:38:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2021-06-01 16:38:22,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 3356. [2021-06-01 16:38:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.5837805605247466) internal successors, (8666), 3355 states have internal predecessors, (8666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8666 transitions. [2021-06-01 16:38:22,775 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8666 transitions. Word has length 105 [2021-06-01 16:38:22,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:22,776 INFO L482 AbstractCegarLoop]: Abstraction has 3356 states and 8666 transitions. [2021-06-01 16:38:22,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8666 transitions. [2021-06-01 16:38:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:22,781 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:22,781 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:22,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-01 16:38:22,781 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 16:38:22,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:22,782 INFO L82 PathProgramCache]: Analyzing trace with hash 187169344, now seen corresponding path program 4 times [2021-06-01 16:38:22,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:22,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497774177] [2021-06-01 16:38:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:23,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:23,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497774177] [2021-06-01 16:38:23,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497774177] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:23,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:23,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:23,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622700613] [2021-06-01 16:38:23,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:23,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:23,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:23,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:23,088 INFO L87 Difference]: Start difference. First operand 3356 states and 8666 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:24,172 INFO L93 Difference]: Finished difference Result 4498 states and 11407 transitions. [2021-06-01 16:38:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:24,173 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:24,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:24,179 INFO L225 Difference]: With dead ends: 4498 [2021-06-01 16:38:24,179 INFO L226 Difference]: Without dead ends: 4498 [2021-06-01 16:38:24,179 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 880.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-01 16:38:24,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-06-01 16:38:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 3551. [2021-06-01 16:38:24,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3549 states have (on average 2.5998872921949845) internal successors, (9227), 3550 states have internal predecessors, (9227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:24,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 9227 transitions. [2021-06-01 16:38:24,233 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 9227 transitions. Word has length 105 [2021-06-01 16:38:24,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:24,233 INFO L482 AbstractCegarLoop]: Abstraction has 3551 states and 9227 transitions. [2021-06-01 16:38:24,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:24,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 9227 transitions. [2021-06-01 16:38:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:24,238 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:24,238 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] [2021-06-01 16:38:24,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-01 16:38:24,239 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 16:38:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:24,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1971920312, now seen corresponding path program 5 times [2021-06-01 16:38:24,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:24,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815683100] [2021-06-01 16:38:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:24,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:24,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815683100] [2021-06-01 16:38:24,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815683100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:24,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:24,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:24,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835512659] [2021-06-01 16:38:24,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:24,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:24,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:24,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:24,527 INFO L87 Difference]: Start difference. First operand 3551 states and 9227 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:25,758 INFO L93 Difference]: Finished difference Result 4275 states and 10837 transitions. [2021-06-01 16:38:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:25,758 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:25,764 INFO L225 Difference]: With dead ends: 4275 [2021-06-01 16:38:25,764 INFO L226 Difference]: Without dead ends: 4275 [2021-06-01 16:38:25,765 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 959.2ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:38:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2021-06-01 16:38:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 3553. [2021-06-01 16:38:25,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3551 states have (on average 2.5998310335116868) internal successors, (9232), 3552 states have internal predecessors, (9232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 9232 transitions. [2021-06-01 16:38:25,814 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 9232 transitions. Word has length 105 [2021-06-01 16:38:25,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:25,814 INFO L482 AbstractCegarLoop]: Abstraction has 3553 states and 9232 transitions. [2021-06-01 16:38:25,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:25,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 9232 transitions. [2021-06-01 16:38:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:25,819 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:25,820 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:25,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-01 16:38:25,820 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 16:38:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1033652586, now seen corresponding path program 6 times [2021-06-01 16:38:25,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:25,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665552811] [2021-06-01 16:38:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:26,220 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 16:38:26,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:26,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665552811] [2021-06-01 16:38:26,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665552811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:26,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:26,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 16:38:26,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002136980] [2021-06-01 16:38:26,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 16:38:26,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:26,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 16:38:26,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-06-01 16:38:26,222 INFO L87 Difference]: Start difference. First operand 3553 states and 9232 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:27,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:27,803 INFO L93 Difference]: Finished difference Result 5180 states and 12800 transitions. [2021-06-01 16:38:27,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 16:38:27,804 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:27,809 INFO L225 Difference]: With dead ends: 5180 [2021-06-01 16:38:27,809 INFO L226 Difference]: Without dead ends: 5180 [2021-06-01 16:38:27,809 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1333.2ms TimeCoverageRelationStatistics Valid=423, Invalid=1217, Unknown=0, NotChecked=0, Total=1640 [2021-06-01 16:38:27,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-06-01 16:38:27,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 3529. [2021-06-01 16:38:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3529 states, 3527 states have (on average 2.5971080238162743) internal successors, (9160), 3528 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 9160 transitions. [2021-06-01 16:38:27,866 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 9160 transitions. Word has length 105 [2021-06-01 16:38:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:27,866 INFO L482 AbstractCegarLoop]: Abstraction has 3529 states and 9160 transitions. [2021-06-01 16:38:27,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 9160 transitions. [2021-06-01 16:38:27,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:27,871 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:27,872 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:27,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-01 16:38:27,872 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 16:38:27,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:27,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1654948062, now seen corresponding path program 7 times [2021-06-01 16:38:27,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:27,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234972448] [2021-06-01 16:38:27,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:28,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:28,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234972448] [2021-06-01 16:38:28,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234972448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:28,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:28,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 16:38:28,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277248114] [2021-06-01 16:38:28,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 16:38:28,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:28,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 16:38:28,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-06-01 16:38:28,374 INFO L87 Difference]: Start difference. First operand 3529 states and 9160 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:29,805 INFO L93 Difference]: Finished difference Result 4434 states and 11097 transitions. [2021-06-01 16:38:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:29,809 INFO L225 Difference]: With dead ends: 4434 [2021-06-01 16:38:29,809 INFO L226 Difference]: Without dead ends: 4434 [2021-06-01 16:38:29,809 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1250.5ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-06-01 16:38:29,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2021-06-01 16:38:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 3537. [2021-06-01 16:38:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3535 states have (on average 2.596888260254597) internal successors, (9180), 3536 states have internal predecessors, (9180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:29,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 9180 transitions. [2021-06-01 16:38:29,877 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 9180 transitions. Word has length 105 [2021-06-01 16:38:29,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:29,877 INFO L482 AbstractCegarLoop]: Abstraction has 3537 states and 9180 transitions. [2021-06-01 16:38:29,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:29,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 9180 transitions. [2021-06-01 16:38:29,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:29,884 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:29,884 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:29,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-01 16:38:29,885 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 16:38:29,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:29,885 INFO L82 PathProgramCache]: Analyzing trace with hash -594054976, now seen corresponding path program 8 times [2021-06-01 16:38:29,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:29,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039817367] [2021-06-01 16:38:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:30,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:30,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039817367] [2021-06-01 16:38:30,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039817367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:30,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:30,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:30,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923772325] [2021-06-01 16:38:30,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:30,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:30,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:30,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:30,174 INFO L87 Difference]: Start difference. First operand 3537 states and 9180 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:31,989 INFO L93 Difference]: Finished difference Result 5067 states and 12513 transitions. [2021-06-01 16:38:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:38:31,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:31,993 INFO L225 Difference]: With dead ends: 5067 [2021-06-01 16:38:31,993 INFO L226 Difference]: Without dead ends: 5067 [2021-06-01 16:38:31,994 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1444.6ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-06-01 16:38:31,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2021-06-01 16:38:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 3531. [2021-06-01 16:38:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 3529 states have (on average 2.5970529895154435) internal successors, (9165), 3530 states have internal predecessors, (9165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 9165 transitions. [2021-06-01 16:38:32,040 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 9165 transitions. Word has length 105 [2021-06-01 16:38:32,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:32,040 INFO L482 AbstractCegarLoop]: Abstraction has 3531 states and 9165 transitions. [2021-06-01 16:38:32,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 9165 transitions. [2021-06-01 16:38:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:32,045 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:32,045 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:32,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-01 16:38:32,045 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 16:38:32,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:32,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1036005680, now seen corresponding path program 9 times [2021-06-01 16:38:32,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:32,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236590867] [2021-06-01 16:38:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:32,267 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 16:38:32,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:32,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236590867] [2021-06-01 16:38:32,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236590867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:32,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:32,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:32,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491154499] [2021-06-01 16:38:32,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:32,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:32,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:32,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:32,268 INFO L87 Difference]: Start difference. First operand 3531 states and 9165 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:32,844 INFO L93 Difference]: Finished difference Result 3944 states and 9981 transitions. [2021-06-01 16:38:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:38:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:32,848 INFO L225 Difference]: With dead ends: 3944 [2021-06-01 16:38:32,848 INFO L226 Difference]: Without dead ends: 3944 [2021-06-01 16:38:32,849 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 455.5ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2021-06-01 16:38:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3527. [2021-06-01 16:38:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 3525 states have (on average 2.5988652482269505) internal successors, (9161), 3526 states have internal predecessors, (9161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:32,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9161 transitions. [2021-06-01 16:38:32,897 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9161 transitions. Word has length 105 [2021-06-01 16:38:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:32,897 INFO L482 AbstractCegarLoop]: Abstraction has 3527 states and 9161 transitions. [2021-06-01 16:38:32,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9161 transitions. [2021-06-01 16:38:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:32,902 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:32,902 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:32,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-01 16:38:32,903 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 16:38:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash 419287134, now seen corresponding path program 10 times [2021-06-01 16:38:32,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:32,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316393269] [2021-06-01 16:38:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:33,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:33,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316393269] [2021-06-01 16:38:33,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316393269] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:33,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:33,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:33,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334456529] [2021-06-01 16:38:33,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:33,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:33,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:33,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:33,230 INFO L87 Difference]: Start difference. First operand 3527 states and 9161 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:34,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:34,349 INFO L93 Difference]: Finished difference Result 4153 states and 10417 transitions. [2021-06-01 16:38:34,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:34,349 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:34,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:34,353 INFO L225 Difference]: With dead ends: 4153 [2021-06-01 16:38:34,353 INFO L226 Difference]: Without dead ends: 4153 [2021-06-01 16:38:34,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 892.2ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:34,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2021-06-01 16:38:34,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 3533. [2021-06-01 16:38:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3531 states have (on average 2.5986972529028605) internal successors, (9176), 3532 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 9176 transitions. [2021-06-01 16:38:34,397 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 9176 transitions. Word has length 105 [2021-06-01 16:38:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:34,398 INFO L482 AbstractCegarLoop]: Abstraction has 3533 states and 9176 transitions. [2021-06-01 16:38:34,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 9176 transitions. [2021-06-01 16:38:34,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:34,402 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:34,402 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:34,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-01 16:38:34,402 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 16:38:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:34,402 INFO L82 PathProgramCache]: Analyzing trace with hash -796621898, now seen corresponding path program 11 times [2021-06-01 16:38:34,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:34,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359109081] [2021-06-01 16:38:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:34,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:34,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359109081] [2021-06-01 16:38:34,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359109081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:34,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:34,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:34,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559515418] [2021-06-01 16:38:34,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:34,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:34,579 INFO L87 Difference]: Start difference. First operand 3533 states and 9176 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:35,182 INFO L93 Difference]: Finished difference Result 4509 states and 11212 transitions. [2021-06-01 16:38:35,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:35,185 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:35,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:35,189 INFO L225 Difference]: With dead ends: 4509 [2021-06-01 16:38:35,189 INFO L226 Difference]: Without dead ends: 4509 [2021-06-01 16:38:35,189 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 425.0ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:35,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2021-06-01 16:38:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 3520. [2021-06-01 16:38:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 3518 states have (on average 2.5974985787379192) internal successors, (9138), 3519 states have internal predecessors, (9138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 9138 transitions. [2021-06-01 16:38:35,248 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 9138 transitions. Word has length 105 [2021-06-01 16:38:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:35,248 INFO L482 AbstractCegarLoop]: Abstraction has 3520 states and 9138 transitions. [2021-06-01 16:38:35,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 9138 transitions. [2021-06-01 16:38:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:35,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:35,254 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] [2021-06-01 16:38:35,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-01 16:38:35,255 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 16:38:35,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:35,255 INFO L82 PathProgramCache]: Analyzing trace with hash 832988194, now seen corresponding path program 12 times [2021-06-01 16:38:35,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:35,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548372057] [2021-06-01 16:38:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:35,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:35,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548372057] [2021-06-01 16:38:35,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548372057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:35,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:35,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 16:38:35,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680927206] [2021-06-01 16:38:35,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 16:38:35,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:35,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 16:38:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-06-01 16:38:35,619 INFO L87 Difference]: Start difference. First operand 3520 states and 9138 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:36,678 INFO L93 Difference]: Finished difference Result 5120 states and 12988 transitions. [2021-06-01 16:38:36,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:36,678 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:36,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:36,682 INFO L225 Difference]: With dead ends: 5120 [2021-06-01 16:38:36,682 INFO L226 Difference]: Without dead ends: 5120 [2021-06-01 16:38:36,683 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 889.8ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2021-06-01 16:38:36,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3619. [2021-06-01 16:38:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3617 states have (on average 2.6018800110588884) internal successors, (9411), 3618 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-06-01 16:38:36,729 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-06-01 16:38:36,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:36,730 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-06-01 16:38:36,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:36,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-06-01 16:38:36,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:36,734 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:36,734 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:36,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-01 16:38:36,735 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 16:38:36,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:36,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2142019302, now seen corresponding path program 13 times [2021-06-01 16:38:36,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:36,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539289391] [2021-06-01 16:38:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:37,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:37,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539289391] [2021-06-01 16:38:37,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539289391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:37,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:37,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:37,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159278500] [2021-06-01 16:38:37,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:37,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:37,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:37,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:37,026 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:38,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:38,127 INFO L93 Difference]: Finished difference Result 5756 states and 14572 transitions. [2021-06-01 16:38:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:38,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:38,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:38,133 INFO L225 Difference]: With dead ends: 5756 [2021-06-01 16:38:38,133 INFO L226 Difference]: Without dead ends: 5756 [2021-06-01 16:38:38,133 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 922.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-01 16:38:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-06-01 16:38:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 3655. [2021-06-01 16:38:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3653 states have (on average 2.6058034492198194) internal successors, (9519), 3654 states have internal predecessors, (9519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9519 transitions. [2021-06-01 16:38:38,182 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9519 transitions. Word has length 105 [2021-06-01 16:38:38,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:38,182 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9519 transitions. [2021-06-01 16:38:38,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9519 transitions. [2021-06-01 16:38:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:38,187 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:38,187 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:38,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-01 16:38:38,187 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 16:38:38,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:38,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1456313546, now seen corresponding path program 14 times [2021-06-01 16:38:38,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:38,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067965243] [2021-06-01 16:38:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:38,449 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 16:38:38,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:38,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067965243] [2021-06-01 16:38:38,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067965243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:38,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:38,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:38,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164428763] [2021-06-01 16:38:38,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:38,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:38,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:38,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:38,450 INFO L87 Difference]: Start difference. First operand 3655 states and 9519 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:39,652 INFO L93 Difference]: Finished difference Result 5527 states and 13989 transitions. [2021-06-01 16:38:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:39,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:39,657 INFO L225 Difference]: With dead ends: 5527 [2021-06-01 16:38:39,658 INFO L226 Difference]: Without dead ends: 5527 [2021-06-01 16:38:39,658 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1001.3ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:38:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-06-01 16:38:39,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 3619. [2021-06-01 16:38:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3617 states have (on average 2.6018800110588884) internal successors, (9411), 3618 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-06-01 16:38:39,705 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-06-01 16:38:39,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:39,705 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-06-01 16:38:39,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:39,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-06-01 16:38:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:39,710 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:39,710 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:39,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-01 16:38:39,710 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 16:38:39,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:39,710 INFO L82 PathProgramCache]: Analyzing trace with hash 837734198, now seen corresponding path program 15 times [2021-06-01 16:38:39,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:39,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816324676] [2021-06-01 16:38:39,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:39,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:39,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816324676] [2021-06-01 16:38:39,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816324676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:39,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:39,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:39,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135417167] [2021-06-01 16:38:39,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:39,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:39,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:39,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:39,894 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:40,429 INFO L93 Difference]: Finished difference Result 4625 states and 11444 transitions. [2021-06-01 16:38:40,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:40,437 INFO L225 Difference]: With dead ends: 4625 [2021-06-01 16:38:40,437 INFO L226 Difference]: Without dead ends: 4625 [2021-06-01 16:38:40,437 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 428.4ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4625 states. [2021-06-01 16:38:40,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4625 to 3622. [2021-06-01 16:38:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 2.600276243093923) internal successors, (9413), 3621 states have internal predecessors, (9413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 9413 transitions. [2021-06-01 16:38:40,478 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 9413 transitions. Word has length 105 [2021-06-01 16:38:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:40,478 INFO L482 AbstractCegarLoop]: Abstraction has 3622 states and 9413 transitions. [2021-06-01 16:38:40,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 9413 transitions. [2021-06-01 16:38:40,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:40,482 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:40,482 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:40,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-01 16:38:40,482 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 16:38:40,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:40,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1042359838, now seen corresponding path program 16 times [2021-06-01 16:38:40,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:40,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344541437] [2021-06-01 16:38:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:40,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:40,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344541437] [2021-06-01 16:38:40,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344541437] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:40,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:40,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:40,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445535469] [2021-06-01 16:38:40,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:40,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:40,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:40,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:40,789 INFO L87 Difference]: Start difference. First operand 3622 states and 9413 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:41,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:41,905 INFO L93 Difference]: Finished difference Result 5127 states and 12920 transitions. [2021-06-01 16:38:41,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:41,906 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:41,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:41,910 INFO L225 Difference]: With dead ends: 5127 [2021-06-01 16:38:41,910 INFO L226 Difference]: Without dead ends: 5127 [2021-06-01 16:38:41,910 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 958.2ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:41,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5127 states. [2021-06-01 16:38:41,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5127 to 3624. [2021-06-01 16:38:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3622 states have (on average 2.600220872446162) internal successors, (9418), 3623 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9418 transitions. [2021-06-01 16:38:41,952 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9418 transitions. Word has length 105 [2021-06-01 16:38:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:41,952 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9418 transitions. [2021-06-01 16:38:41,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9418 transitions. [2021-06-01 16:38:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:41,956 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:41,957 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:41,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-01 16:38:41,957 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 16:38:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:41,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152698, now seen corresponding path program 17 times [2021-06-01 16:38:41,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:41,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034021333] [2021-06-01 16:38:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:42,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:42,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034021333] [2021-06-01 16:38:42,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034021333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:42,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:42,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:42,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134511386] [2021-06-01 16:38:42,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:42,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:42,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:42,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:42,222 INFO L87 Difference]: Start difference. First operand 3624 states and 9418 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:43,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:43,779 INFO L93 Difference]: Finished difference Result 6511 states and 16225 transitions. [2021-06-01 16:38:43,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 16:38:43,779 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:43,786 INFO L225 Difference]: With dead ends: 6511 [2021-06-01 16:38:43,786 INFO L226 Difference]: Without dead ends: 6511 [2021-06-01 16:38:43,787 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1387.4ms TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2021-06-01 16:38:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6511 states. [2021-06-01 16:38:43,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6511 to 3672. [2021-06-01 16:38:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3670 states have (on average 2.605449591280654) internal successors, (9562), 3671 states have internal predecessors, (9562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:43,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 9562 transitions. [2021-06-01 16:38:43,845 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 9562 transitions. Word has length 105 [2021-06-01 16:38:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:43,845 INFO L482 AbstractCegarLoop]: Abstraction has 3672 states and 9562 transitions. [2021-06-01 16:38:43,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 9562 transitions. [2021-06-01 16:38:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:43,849 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:43,849 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:43,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-01 16:38:43,849 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 16:38:43,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:43,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1039446942, now seen corresponding path program 18 times [2021-06-01 16:38:43,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:43,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937714481] [2021-06-01 16:38:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:44,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:44,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937714481] [2021-06-01 16:38:44,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937714481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:44,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:44,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:44,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577466731] [2021-06-01 16:38:44,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:44,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:44,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:44,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:44,107 INFO L87 Difference]: Start difference. First operand 3672 states and 9562 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:45,783 INFO L93 Difference]: Finished difference Result 6278 states and 15634 transitions. [2021-06-01 16:38:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 16:38:45,783 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:45,788 INFO L225 Difference]: With dead ends: 6278 [2021-06-01 16:38:45,788 INFO L226 Difference]: Without dead ends: 6278 [2021-06-01 16:38:45,789 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1368.3ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 16:38:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2021-06-01 16:38:45,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 3636. [2021-06-01 16:38:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3634 states have (on average 2.601541001651073) internal successors, (9454), 3635 states have internal predecessors, (9454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 9454 transitions. [2021-06-01 16:38:45,836 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 9454 transitions. Word has length 105 [2021-06-01 16:38:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:45,836 INFO L482 AbstractCegarLoop]: Abstraction has 3636 states and 9454 transitions. [2021-06-01 16:38:45,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 9454 transitions. [2021-06-01 16:38:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:45,839 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:45,839 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:45,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-01 16:38:45,840 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 16:38:45,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:45,840 INFO L82 PathProgramCache]: Analyzing trace with hash -792087630, now seen corresponding path program 19 times [2021-06-01 16:38:45,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:45,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469063309] [2021-06-01 16:38:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:46,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:46,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469063309] [2021-06-01 16:38:46,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469063309] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:46,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:46,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:46,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585162747] [2021-06-01 16:38:46,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:46,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:46,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:46,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:46,104 INFO L87 Difference]: Start difference. First operand 3636 states and 9454 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:47,402 INFO L93 Difference]: Finished difference Result 5693 states and 14188 transitions. [2021-06-01 16:38:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:47,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:47,407 INFO L225 Difference]: With dead ends: 5693 [2021-06-01 16:38:47,408 INFO L226 Difference]: Without dead ends: 5693 [2021-06-01 16:38:47,408 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1014.5ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2021-06-01 16:38:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 3624. [2021-06-01 16:38:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3622 states have (on average 2.600220872446162) internal successors, (9418), 3623 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9418 transitions. [2021-06-01 16:38:47,455 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9418 transitions. Word has length 105 [2021-06-01 16:38:47,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:47,455 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9418 transitions. [2021-06-01 16:38:47,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9418 transitions. [2021-06-01 16:38:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:47,458 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:47,458 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:47,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-01 16:38:47,459 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 16:38:47,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:47,459 INFO L82 PathProgramCache]: Analyzing trace with hash -2082746550, now seen corresponding path program 20 times [2021-06-01 16:38:47,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:47,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681303773] [2021-06-01 16:38:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:47,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:47,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681303773] [2021-06-01 16:38:47,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681303773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:47,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:47,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:47,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115000691] [2021-06-01 16:38:47,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:47,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:47,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:47,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:47,724 INFO L87 Difference]: Start difference. First operand 3624 states and 9418 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:48,876 INFO L93 Difference]: Finished difference Result 4795 states and 11953 transitions. [2021-06-01 16:38:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:48,876 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:48,879 INFO L225 Difference]: With dead ends: 4795 [2021-06-01 16:38:48,879 INFO L226 Difference]: Without dead ends: 4795 [2021-06-01 16:38:48,880 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 921.0ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:48,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2021-06-01 16:38:48,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 3626. [2021-06-01 16:38:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.600165562913907) internal successors, (9423), 3625 states have internal predecessors, (9423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:48,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-06-01 16:38:48,918 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-06-01 16:38:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:48,918 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-06-01 16:38:48,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-06-01 16:38:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:48,922 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:48,922 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:48,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-01 16:38:48,922 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 16:38:48,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:48,922 INFO L82 PathProgramCache]: Analyzing trace with hash -635137250, now seen corresponding path program 21 times [2021-06-01 16:38:48,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:48,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629800845] [2021-06-01 16:38:48,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:49,190 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 16:38:49,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:49,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629800845] [2021-06-01 16:38:49,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629800845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:49,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:49,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:49,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052725686] [2021-06-01 16:38:49,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:49,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:49,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:49,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:49,191 INFO L87 Difference]: Start difference. First operand 3626 states and 9423 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:50,354 INFO L93 Difference]: Finished difference Result 4735 states and 11824 transitions. [2021-06-01 16:38:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:50,354 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:50,358 INFO L225 Difference]: With dead ends: 4735 [2021-06-01 16:38:50,359 INFO L226 Difference]: Without dead ends: 4735 [2021-06-01 16:38:50,359 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 942.4ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-06-01 16:38:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3626. [2021-06-01 16:38:50,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.600165562913907) internal successors, (9423), 3625 states have internal predecessors, (9423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-06-01 16:38:50,397 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-06-01 16:38:50,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:50,397 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-06-01 16:38:50,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-06-01 16:38:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:50,400 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:50,401 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:50,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-01 16:38:50,401 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 16:38:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:50,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2114633644, now seen corresponding path program 22 times [2021-06-01 16:38:50,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:50,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882089788] [2021-06-01 16:38:50,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:50,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:50,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:50,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882089788] [2021-06-01 16:38:50,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882089788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:50,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:50,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:50,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699992339] [2021-06-01 16:38:50,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:50,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:50,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:50,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:50,677 INFO L87 Difference]: Start difference. First operand 3626 states and 9423 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:51,552 INFO L93 Difference]: Finished difference Result 4621 states and 11441 transitions. [2021-06-01 16:38:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:51,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:51,556 INFO L225 Difference]: With dead ends: 4621 [2021-06-01 16:38:51,556 INFO L226 Difference]: Without dead ends: 4621 [2021-06-01 16:38:51,557 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 667.4ms TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2021-06-01 16:38:51,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3620. [2021-06-01 16:38:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.600331674958541) internal successors, (9408), 3619 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-06-01 16:38:51,603 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-06-01 16:38:51,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:51,603 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-06-01 16:38:51,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-06-01 16:38:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:51,607 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:51,607 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] [2021-06-01 16:38:51,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-01 16:38:51,607 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 16:38:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:51,607 INFO L82 PathProgramCache]: Analyzing trace with hash -318688926, now seen corresponding path program 23 times [2021-06-01 16:38:51,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:51,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272950007] [2021-06-01 16:38:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:51,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:51,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:51,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272950007] [2021-06-01 16:38:51,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272950007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:51,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:51,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:51,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019737215] [2021-06-01 16:38:51,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:51,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:51,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:51,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:51,907 INFO L87 Difference]: Start difference. First operand 3620 states and 9408 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:52,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:52,912 INFO L93 Difference]: Finished difference Result 4396 states and 10944 transitions. [2021-06-01 16:38:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:52,912 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:52,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:52,916 INFO L225 Difference]: With dead ends: 4396 [2021-06-01 16:38:52,916 INFO L226 Difference]: Without dead ends: 4396 [2021-06-01 16:38:52,916 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 858.1ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2021-06-01 16:38:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 3620. [2021-06-01 16:38:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.600331674958541) internal successors, (9408), 3619 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:52,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-06-01 16:38:52,956 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-06-01 16:38:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:52,956 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-06-01 16:38:52,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:52,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-06-01 16:38:52,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:52,959 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:52,960 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:52,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-01 16:38:52,960 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 16:38:52,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:52,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1667670798, now seen corresponding path program 24 times [2021-06-01 16:38:52,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:52,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270411088] [2021-06-01 16:38:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:53,256 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 16:38:53,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:53,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270411088] [2021-06-01 16:38:53,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270411088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:53,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:53,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:53,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917093790] [2021-06-01 16:38:53,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:53,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:53,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:53,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:53,257 INFO L87 Difference]: Start difference. First operand 3620 states and 9408 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:54,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:54,382 INFO L93 Difference]: Finished difference Result 4479 states and 11103 transitions. [2021-06-01 16:38:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:38:54,382 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:54,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:54,386 INFO L225 Difference]: With dead ends: 4479 [2021-06-01 16:38:54,386 INFO L226 Difference]: Without dead ends: 4479 [2021-06-01 16:38:54,387 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 935.8ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:38:54,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2021-06-01 16:38:54,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 3616. [2021-06-01 16:38:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3614 states have (on average 2.600442722744881) internal successors, (9398), 3615 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 9398 transitions. [2021-06-01 16:38:54,457 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 9398 transitions. Word has length 105 [2021-06-01 16:38:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:54,457 INFO L482 AbstractCegarLoop]: Abstraction has 3616 states and 9398 transitions. [2021-06-01 16:38:54,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 9398 transitions. [2021-06-01 16:38:54,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:54,460 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:54,461 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:54,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-01 16:38:54,461 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 16:38:54,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:54,461 INFO L82 PathProgramCache]: Analyzing trace with hash -369811618, now seen corresponding path program 25 times [2021-06-01 16:38:54,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:54,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169343986] [2021-06-01 16:38:54,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:54,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:54,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169343986] [2021-06-01 16:38:54,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169343986] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:54,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:54,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 16:38:54,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607993613] [2021-06-01 16:38:54,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 16:38:54,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:54,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 16:38:54,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:38:54,660 INFO L87 Difference]: Start difference. First operand 3616 states and 9398 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:55,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:55,187 INFO L93 Difference]: Finished difference Result 4063 states and 10283 transitions. [2021-06-01 16:38:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 16:38:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:55,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:55,191 INFO L225 Difference]: With dead ends: 4063 [2021-06-01 16:38:55,191 INFO L226 Difference]: Without dead ends: 4063 [2021-06-01 16:38:55,192 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 405.3ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-01 16:38:55,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-06-01 16:38:55,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 3548. [2021-06-01 16:38:55,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3548 states, 3546 states have (on average 2.604624929498026) internal successors, (9236), 3547 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:55,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 9236 transitions. [2021-06-01 16:38:55,229 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 9236 transitions. Word has length 105 [2021-06-01 16:38:55,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:55,229 INFO L482 AbstractCegarLoop]: Abstraction has 3548 states and 9236 transitions. [2021-06-01 16:38:55,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 9236 transitions. [2021-06-01 16:38:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:55,232 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:55,232 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] [2021-06-01 16:38:55,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-01 16:38:55,232 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 16:38:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:55,233 INFO L82 PathProgramCache]: Analyzing trace with hash -124075606, now seen corresponding path program 26 times [2021-06-01 16:38:55,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:55,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264115905] [2021-06-01 16:38:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:55,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:55,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:55,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264115905] [2021-06-01 16:38:55,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264115905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:55,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:55,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:55,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919877217] [2021-06-01 16:38:55,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:55,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:55,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:55,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:55,504 INFO L87 Difference]: Start difference. First operand 3548 states and 9236 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:56,532 INFO L93 Difference]: Finished difference Result 5792 states and 14693 transitions. [2021-06-01 16:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:38:56,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:56,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:56,536 INFO L225 Difference]: With dead ends: 5792 [2021-06-01 16:38:56,536 INFO L226 Difference]: Without dead ends: 5792 [2021-06-01 16:38:56,537 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 898.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-01 16:38:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2021-06-01 16:38:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 3774. [2021-06-01 16:38:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 3772 states have (on average 2.627253446447508) internal successors, (9910), 3773 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 9910 transitions. [2021-06-01 16:38:56,587 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 9910 transitions. Word has length 105 [2021-06-01 16:38:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:56,587 INFO L482 AbstractCegarLoop]: Abstraction has 3774 states and 9910 transitions. [2021-06-01 16:38:56,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 9910 transitions. [2021-06-01 16:38:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:56,590 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:56,590 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:56,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-01 16:38:56,591 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 16:38:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:56,591 INFO L82 PathProgramCache]: Analyzing trace with hash -809781362, now seen corresponding path program 27 times [2021-06-01 16:38:56,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:56,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566521242] [2021-06-01 16:38:56,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:56,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:56,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566521242] [2021-06-01 16:38:56,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566521242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:56,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:56,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:56,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761419922] [2021-06-01 16:38:56,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:56,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:56,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:56,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:56,876 INFO L87 Difference]: Start difference. First operand 3774 states and 9910 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:57,980 INFO L93 Difference]: Finished difference Result 5338 states and 13542 transitions. [2021-06-01 16:38:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:38:57,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:57,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:57,985 INFO L225 Difference]: With dead ends: 5338 [2021-06-01 16:38:57,985 INFO L226 Difference]: Without dead ends: 5338 [2021-06-01 16:38:57,985 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 932.4ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:38:57,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2021-06-01 16:38:58,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 3743. [2021-06-01 16:38:58,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 3741 states have (on average 2.623630045442395) internal successors, (9815), 3742 states have internal predecessors, (9815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 9815 transitions. [2021-06-01 16:38:58,028 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 9815 transitions. Word has length 105 [2021-06-01 16:38:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:58,028 INFO L482 AbstractCegarLoop]: Abstraction has 3743 states and 9815 transitions. [2021-06-01 16:38:58,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 9815 transitions. [2021-06-01 16:38:58,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:58,031 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:58,031 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:58,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-01 16:38:58,032 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 16:38:58,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:58,032 INFO L82 PathProgramCache]: Analyzing trace with hash 889122722, now seen corresponding path program 28 times [2021-06-01 16:38:58,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:58,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061816655] [2021-06-01 16:38:58,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:38:58,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:58,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061816655] [2021-06-01 16:38:58,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061816655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:58,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:58,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:58,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786271585] [2021-06-01 16:38:58,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:58,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:58,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:58,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:58,281 INFO L87 Difference]: Start difference. First operand 3743 states and 9815 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:59,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:38:59,382 INFO L93 Difference]: Finished difference Result 5534 states and 13944 transitions. [2021-06-01 16:38:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:38:59,382 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:38:59,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:38:59,387 INFO L225 Difference]: With dead ends: 5534 [2021-06-01 16:38:59,387 INFO L226 Difference]: Without dead ends: 5534 [2021-06-01 16:38:59,387 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 911.6ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:38:59,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2021-06-01 16:38:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 3712. [2021-06-01 16:38:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 3710 states have (on average 2.6199460916442048) internal successors, (9720), 3711 states have internal predecessors, (9720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 9720 transitions. [2021-06-01 16:38:59,430 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 9720 transitions. Word has length 105 [2021-06-01 16:38:59,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:38:59,430 INFO L482 AbstractCegarLoop]: Abstraction has 3712 states and 9720 transitions. [2021-06-01 16:38:59,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:38:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 9720 transitions. [2021-06-01 16:38:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:38:59,433 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:38:59,433 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:38:59,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-01 16:38:59,434 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 16:38:59,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:38:59,434 INFO L82 PathProgramCache]: Analyzing trace with hash -2013372850, now seen corresponding path program 29 times [2021-06-01 16:38:59,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:38:59,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134987961] [2021-06-01 16:38:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:38:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:38:59,701 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 16:38:59,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:38:59,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134987961] [2021-06-01 16:38:59,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134987961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:38:59,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:38:59,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:38:59,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266709688] [2021-06-01 16:38:59,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:38:59,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:38:59,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:38:59,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:38:59,703 INFO L87 Difference]: Start difference. First operand 3712 states and 9720 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:00,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:00,555 INFO L93 Difference]: Finished difference Result 4556 states and 11438 transitions. [2021-06-01 16:39:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:00,555 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:00,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:00,559 INFO L225 Difference]: With dead ends: 4556 [2021-06-01 16:39:00,559 INFO L226 Difference]: Without dead ends: 4556 [2021-06-01 16:39:00,560 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 706.7ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:00,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2021-06-01 16:39:00,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 3742. [2021-06-01 16:39:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3740 states have (on average 2.6189839572192515) internal successors, (9795), 3741 states have internal predecessors, (9795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-06-01 16:39:00,604 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-06-01 16:39:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:00,605 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-06-01 16:39:00,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:00,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-06-01 16:39:00,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:00,608 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:00,608 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:00,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-01 16:39:00,608 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 16:39:00,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:00,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2032954612, now seen corresponding path program 30 times [2021-06-01 16:39:00,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:00,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954820639] [2021-06-01 16:39:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:00,917 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 16:39:00,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:00,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954820639] [2021-06-01 16:39:00,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954820639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:00,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:00,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:00,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390081511] [2021-06-01 16:39:00,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:00,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:00,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:00,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:00,918 INFO L87 Difference]: Start difference. First operand 3742 states and 9795 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:01,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:01,990 INFO L93 Difference]: Finished difference Result 7647 states and 19247 transitions. [2021-06-01 16:39:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 16:39:01,991 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:01,997 INFO L225 Difference]: With dead ends: 7647 [2021-06-01 16:39:01,998 INFO L226 Difference]: Without dead ends: 7647 [2021-06-01 16:39:01,998 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 906.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-01 16:39:02,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2021-06-01 16:39:02,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 3814. [2021-06-01 16:39:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3812 states have (on average 2.626180482686254) internal successors, (10011), 3813 states have internal predecessors, (10011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 10011 transitions. [2021-06-01 16:39:02,052 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 10011 transitions. Word has length 105 [2021-06-01 16:39:02,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:02,053 INFO L482 AbstractCegarLoop]: Abstraction has 3814 states and 10011 transitions. [2021-06-01 16:39:02,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 10011 transitions. [2021-06-01 16:39:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:02,056 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:02,056 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:02,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-01 16:39:02,056 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 16:39:02,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:02,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1347248856, now seen corresponding path program 31 times [2021-06-01 16:39:02,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:02,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209656506] [2021-06-01 16:39:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:02,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:02,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209656506] [2021-06-01 16:39:02,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209656506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:02,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:02,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:02,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461229689] [2021-06-01 16:39:02,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:02,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:02,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:02,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:02,303 INFO L87 Difference]: Start difference. First operand 3814 states and 10011 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:03,601 INFO L93 Difference]: Finished difference Result 7193 states and 18096 transitions. [2021-06-01 16:39:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:03,606 INFO L225 Difference]: With dead ends: 7193 [2021-06-01 16:39:03,606 INFO L226 Difference]: Without dead ends: 7193 [2021-06-01 16:39:03,606 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 962.8ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 16:39:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2021-06-01 16:39:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 3742. [2021-06-01 16:39:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3740 states have (on average 2.6189839572192515) internal successors, (9795), 3741 states have internal predecessors, (9795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-06-01 16:39:03,648 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-06-01 16:39:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:03,648 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-06-01 16:39:03,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-06-01 16:39:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:03,652 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:03,652 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:03,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-01 16:39:03,652 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 16:39:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:03,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1248814356, now seen corresponding path program 32 times [2021-06-01 16:39:03,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:03,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964333531] [2021-06-01 16:39:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:03,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:03,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964333531] [2021-06-01 16:39:03,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964333531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:03,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:03,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:03,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798853558] [2021-06-01 16:39:03,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:03,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:03,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:03,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:03,896 INFO L87 Difference]: Start difference. First operand 3742 states and 9795 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:04,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:04,993 INFO L93 Difference]: Finished difference Result 6538 states and 16410 transitions. [2021-06-01 16:39:04,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:04,993 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:04,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:04,999 INFO L225 Difference]: With dead ends: 6538 [2021-06-01 16:39:04,999 INFO L226 Difference]: Without dead ends: 6538 [2021-06-01 16:39:04,999 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 911.9ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6538 states. [2021-06-01 16:39:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6538 to 3669. [2021-06-01 16:39:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3667 states have (on average 2.61139896373057) internal successors, (9576), 3668 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 9576 transitions. [2021-06-01 16:39:05,043 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 9576 transitions. Word has length 105 [2021-06-01 16:39:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:05,043 INFO L482 AbstractCegarLoop]: Abstraction has 3669 states and 9576 transitions. [2021-06-01 16:39:05,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 9576 transitions. [2021-06-01 16:39:05,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:05,046 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:05,046 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:05,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-01 16:39:05,047 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 16:39:05,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:05,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1616088008, now seen corresponding path program 33 times [2021-06-01 16:39:05,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:05,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216473013] [2021-06-01 16:39:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:05,286 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 16:39:05,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:05,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216473013] [2021-06-01 16:39:05,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216473013] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:05,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:05,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:05,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864055683] [2021-06-01 16:39:05,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:05,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:05,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:05,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:05,287 INFO L87 Difference]: Start difference. First operand 3669 states and 9576 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:06,785 INFO L93 Difference]: Finished difference Result 6413 states and 15962 transitions. [2021-06-01 16:39:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 16:39:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:06,791 INFO L225 Difference]: With dead ends: 6413 [2021-06-01 16:39:06,791 INFO L226 Difference]: Without dead ends: 6413 [2021-06-01 16:39:06,791 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1290.8ms TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2021-06-01 16:39:06,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2021-06-01 16:39:06,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 2966. [2021-06-01 16:39:06,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 2964 states have (on average 2.6039136302294197) internal successors, (7718), 2965 states have internal predecessors, (7718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 7718 transitions. [2021-06-01 16:39:06,830 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 7718 transitions. Word has length 105 [2021-06-01 16:39:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:06,830 INFO L482 AbstractCegarLoop]: Abstraction has 2966 states and 7718 transitions. [2021-06-01 16:39:06,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 7718 transitions. [2021-06-01 16:39:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:06,833 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:06,833 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:06,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-01 16:39:06,833 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 16:39:06,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:06,833 INFO L82 PathProgramCache]: Analyzing trace with hash 930382252, now seen corresponding path program 34 times [2021-06-01 16:39:06,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:06,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051146961] [2021-06-01 16:39:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:07,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:07,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051146961] [2021-06-01 16:39:07,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051146961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:07,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:07,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:07,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425128986] [2021-06-01 16:39:07,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:07,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:07,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:07,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:07,096 INFO L87 Difference]: Start difference. First operand 2966 states and 7718 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:08,791 INFO L93 Difference]: Finished difference Result 5916 states and 14711 transitions. [2021-06-01 16:39:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 16:39:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:08,796 INFO L225 Difference]: With dead ends: 5916 [2021-06-01 16:39:08,796 INFO L226 Difference]: Without dead ends: 5916 [2021-06-01 16:39:08,796 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1379.6ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 16:39:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5916 states. [2021-06-01 16:39:08,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5916 to 2891. [2021-06-01 16:39:08,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2889 states have (on average 2.593631014191762) internal successors, (7493), 2890 states have internal predecessors, (7493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 7493 transitions. [2021-06-01 16:39:08,831 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 7493 transitions. Word has length 105 [2021-06-01 16:39:08,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:08,831 INFO L482 AbstractCegarLoop]: Abstraction has 2891 states and 7493 transitions. [2021-06-01 16:39:08,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:08,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 7493 transitions. [2021-06-01 16:39:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:08,833 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:08,833 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:08,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-01 16:39:08,834 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 16:39:08,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:08,834 INFO L82 PathProgramCache]: Analyzing trace with hash -901152320, now seen corresponding path program 35 times [2021-06-01 16:39:08,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:08,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439284772] [2021-06-01 16:39:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:09,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:09,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439284772] [2021-06-01 16:39:09,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439284772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:09,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:09,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:09,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902366548] [2021-06-01 16:39:09,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:09,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:09,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:09,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:09,084 INFO L87 Difference]: Start difference. First operand 2891 states and 7493 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:09,819 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-06-01 16:39:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:10,420 INFO L93 Difference]: Finished difference Result 4866 states and 12039 transitions. [2021-06-01 16:39:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:39:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:10,425 INFO L225 Difference]: With dead ends: 4866 [2021-06-01 16:39:10,425 INFO L226 Difference]: Without dead ends: 4866 [2021-06-01 16:39:10,425 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1089.0ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:10,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2021-06-01 16:39:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 2880. [2021-06-01 16:39:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2878 states have (on average 2.592077831827658) internal successors, (7460), 2879 states have internal predecessors, (7460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 7460 transitions. [2021-06-01 16:39:10,470 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 7460 transitions. Word has length 105 [2021-06-01 16:39:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:10,470 INFO L482 AbstractCegarLoop]: Abstraction has 2880 states and 7460 transitions. [2021-06-01 16:39:10,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 7460 transitions. [2021-06-01 16:39:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:10,472 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:10,472 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] [2021-06-01 16:39:10,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-01 16:39:10,472 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 16:39:10,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:10,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2103156056, now seen corresponding path program 36 times [2021-06-01 16:39:10,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:10,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521567598] [2021-06-01 16:39:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:10,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:10,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521567598] [2021-06-01 16:39:10,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521567598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:10,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:10,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:10,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295677604] [2021-06-01 16:39:10,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:10,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:10,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:10,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:10,729 INFO L87 Difference]: Start difference. First operand 2880 states and 7460 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:11,739 INFO L93 Difference]: Finished difference Result 4695 states and 11568 transitions. [2021-06-01 16:39:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:11,743 INFO L225 Difference]: With dead ends: 4695 [2021-06-01 16:39:11,743 INFO L226 Difference]: Without dead ends: 4695 [2021-06-01 16:39:11,744 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 847.3ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2021-06-01 16:39:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 2883. [2021-06-01 16:39:11,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2881 states have (on average 2.5921555015619577) internal successors, (7468), 2882 states have internal predecessors, (7468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 7468 transitions. [2021-06-01 16:39:11,777 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 7468 transitions. Word has length 105 [2021-06-01 16:39:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:11,777 INFO L482 AbstractCegarLoop]: Abstraction has 2883 states and 7468 transitions. [2021-06-01 16:39:11,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:11,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 7468 transitions. [2021-06-01 16:39:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:11,780 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:11,780 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:11,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-01 16:39:11,780 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 16:39:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:11,780 INFO L82 PathProgramCache]: Analyzing trace with hash -744201940, now seen corresponding path program 37 times [2021-06-01 16:39:11,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:11,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210640924] [2021-06-01 16:39:11,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:12,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:12,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210640924] [2021-06-01 16:39:12,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210640924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:12,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:12,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:12,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394546337] [2021-06-01 16:39:12,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:12,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:12,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:12,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:12,034 INFO L87 Difference]: Start difference. First operand 2883 states and 7468 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:13,185 INFO L93 Difference]: Finished difference Result 4584 states and 11319 transitions. [2021-06-01 16:39:13,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:39:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:13,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:13,188 INFO L225 Difference]: With dead ends: 4584 [2021-06-01 16:39:13,188 INFO L226 Difference]: Without dead ends: 4584 [2021-06-01 16:39:13,189 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 928.3ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-06-01 16:39:13,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 2869. [2021-06-01 16:39:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2867 states have (on average 2.590512731077782) internal successors, (7427), 2868 states have internal predecessors, (7427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 7427 transitions. [2021-06-01 16:39:13,220 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 7427 transitions. Word has length 105 [2021-06-01 16:39:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:13,221 INFO L482 AbstractCegarLoop]: Abstraction has 2869 states and 7427 transitions. [2021-06-01 16:39:13,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 7427 transitions. [2021-06-01 16:39:13,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:13,223 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:13,223 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] [2021-06-01 16:39:13,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-01 16:39:13,223 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 16:39:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:13,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1181505182, now seen corresponding path program 38 times [2021-06-01 16:39:13,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:13,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016497560] [2021-06-01 16:39:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:13,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:13,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016497560] [2021-06-01 16:39:13,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016497560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:13,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:13,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:13,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731979607] [2021-06-01 16:39:13,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:13,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:13,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:13,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:13,477 INFO L87 Difference]: Start difference. First operand 2869 states and 7427 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:14,293 INFO L93 Difference]: Finished difference Result 3786 states and 9295 transitions. [2021-06-01 16:39:14,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:14,293 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:14,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:14,296 INFO L225 Difference]: With dead ends: 3786 [2021-06-01 16:39:14,297 INFO L226 Difference]: Without dead ends: 3786 [2021-06-01 16:39:14,297 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 660.6ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:14,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2021-06-01 16:39:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 2848. [2021-06-01 16:39:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2846 states have (on average 2.590653548840478) internal successors, (7373), 2847 states have internal predecessors, (7373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:14,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 7373 transitions. [2021-06-01 16:39:14,327 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 7373 transitions. Word has length 105 [2021-06-01 16:39:14,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:14,327 INFO L482 AbstractCegarLoop]: Abstraction has 2848 states and 7373 transitions. [2021-06-01 16:39:14,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:14,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 7373 transitions. [2021-06-01 16:39:14,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:14,329 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:14,329 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:14,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-01 16:39:14,330 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 16:39:14,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:14,330 INFO L82 PathProgramCache]: Analyzing trace with hash 139173676, now seen corresponding path program 39 times [2021-06-01 16:39:14,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:14,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288628852] [2021-06-01 16:39:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:14,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:14,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288628852] [2021-06-01 16:39:14,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288628852] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:14,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:14,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:14,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921533128] [2021-06-01 16:39:14,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:14,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:14,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:14,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:14,596 INFO L87 Difference]: Start difference. First operand 2848 states and 7373 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:15,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:15,422 INFO L93 Difference]: Finished difference Result 3813 states and 9309 transitions. [2021-06-01 16:39:15,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:15,422 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:15,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:15,425 INFO L225 Difference]: With dead ends: 3813 [2021-06-01 16:39:15,425 INFO L226 Difference]: Without dead ends: 3813 [2021-06-01 16:39:15,425 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 687.5ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:15,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3813 states. [2021-06-01 16:39:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3813 to 2841. [2021-06-01 16:39:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 2.590700951039098) internal successors, (7355), 2840 states have internal predecessors, (7355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:15,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 7355 transitions. [2021-06-01 16:39:15,454 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 7355 transitions. Word has length 105 [2021-06-01 16:39:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:15,454 INFO L482 AbstractCegarLoop]: Abstraction has 2841 states and 7355 transitions. [2021-06-01 16:39:15,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 7355 transitions. [2021-06-01 16:39:15,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:15,456 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:15,456 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:15,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-01 16:39:15,456 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 16:39:15,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:15,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1586782976, now seen corresponding path program 40 times [2021-06-01 16:39:15,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:15,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263664157] [2021-06-01 16:39:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:15,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:15,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263664157] [2021-06-01 16:39:15,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263664157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:15,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:15,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:15,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487832683] [2021-06-01 16:39:15,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:15,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:15,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:15,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:15,708 INFO L87 Difference]: Start difference. First operand 2841 states and 7355 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:16,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:16,637 INFO L93 Difference]: Finished difference Result 3580 states and 8823 transitions. [2021-06-01 16:39:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 16:39:16,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:16,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:16,640 INFO L225 Difference]: With dead ends: 3580 [2021-06-01 16:39:16,640 INFO L226 Difference]: Without dead ends: 3580 [2021-06-01 16:39:16,641 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 751.5ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-06-01 16:39:16,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2723. [2021-06-01 16:39:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2721 states have (on average 2.606027195883866) internal successors, (7091), 2722 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 7091 transitions. [2021-06-01 16:39:16,669 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 7091 transitions. Word has length 105 [2021-06-01 16:39:16,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:16,669 INFO L482 AbstractCegarLoop]: Abstraction has 2723 states and 7091 transitions. [2021-06-01 16:39:16,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 7091 transitions. [2021-06-01 16:39:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:16,671 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:16,671 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] [2021-06-01 16:39:16,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-01 16:39:16,671 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 16:39:16,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:16,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1795359232, now seen corresponding path program 41 times [2021-06-01 16:39:16,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:16,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520893017] [2021-06-01 16:39:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:16,928 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 16:39:16,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:16,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520893017] [2021-06-01 16:39:16,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520893017] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:16,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:16,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:16,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593713940] [2021-06-01 16:39:16,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:16,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:16,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:16,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:16,930 INFO L87 Difference]: Start difference. First operand 2723 states and 7091 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:17,779 INFO L93 Difference]: Finished difference Result 3197 states and 8060 transitions. [2021-06-01 16:39:17,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:17,780 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:17,782 INFO L225 Difference]: With dead ends: 3197 [2021-06-01 16:39:17,782 INFO L226 Difference]: Without dead ends: 3197 [2021-06-01 16:39:17,782 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 668.7ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:17,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-06-01 16:39:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2705. [2021-06-01 16:39:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2703 states have (on average 2.6067332593414725) internal successors, (7046), 2704 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:17,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 7046 transitions. [2021-06-01 16:39:17,806 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 7046 transitions. Word has length 105 [2021-06-01 16:39:17,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:17,806 INFO L482 AbstractCegarLoop]: Abstraction has 2705 states and 7046 transitions. [2021-06-01 16:39:17,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:17,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 7046 transitions. [2021-06-01 16:39:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:17,808 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:17,808 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] [2021-06-01 16:39:17,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-01 16:39:17,809 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 16:39:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:17,809 INFO L82 PathProgramCache]: Analyzing trace with hash 585486, now seen corresponding path program 42 times [2021-06-01 16:39:17,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:17,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046227113] [2021-06-01 16:39:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:18,068 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 16:39:18,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:18,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046227113] [2021-06-01 16:39:18,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046227113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:18,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:18,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:18,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199570747] [2021-06-01 16:39:18,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:18,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:18,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:18,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:18,072 INFO L87 Difference]: Start difference. First operand 2705 states and 7046 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:18,935 INFO L93 Difference]: Finished difference Result 3419 states and 8516 transitions. [2021-06-01 16:39:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:18,939 INFO L225 Difference]: With dead ends: 3419 [2021-06-01 16:39:18,939 INFO L226 Difference]: Without dead ends: 3419 [2021-06-01 16:39:18,939 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 666.7ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-06-01 16:39:18,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2707. [2021-06-01 16:39:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2705 states have (on average 2.6066543438077634) internal successors, (7051), 2706 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 7051 transitions. [2021-06-01 16:39:18,965 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 7051 transitions. Word has length 105 [2021-06-01 16:39:18,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:18,965 INFO L482 AbstractCegarLoop]: Abstraction has 2707 states and 7051 transitions. [2021-06-01 16:39:18,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:18,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 7051 transitions. [2021-06-01 16:39:18,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:18,967 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:18,968 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:18,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-01 16:39:18,968 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 16:39:18,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:18,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1986945210, now seen corresponding path program 43 times [2021-06-01 16:39:18,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:18,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834102409] [2021-06-01 16:39:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:19,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:19,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834102409] [2021-06-01 16:39:19,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834102409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:19,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:19,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:19,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380535] [2021-06-01 16:39:19,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:19,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:19,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:19,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:19,227 INFO L87 Difference]: Start difference. First operand 2707 states and 7051 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:20,273 INFO L93 Difference]: Finished difference Result 3502 states and 8675 transitions. [2021-06-01 16:39:20,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:20,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:20,276 INFO L225 Difference]: With dead ends: 3502 [2021-06-01 16:39:20,276 INFO L226 Difference]: Without dead ends: 3502 [2021-06-01 16:39:20,277 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 741.6ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-06-01 16:39:20,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2699. [2021-06-01 16:39:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2697 states have (on average 2.60697070819429) internal successors, (7031), 2698 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 7031 transitions. [2021-06-01 16:39:20,306 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 7031 transitions. Word has length 105 [2021-06-01 16:39:20,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:20,306 INFO L482 AbstractCegarLoop]: Abstraction has 2699 states and 7031 transitions. [2021-06-01 16:39:20,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:20,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 7031 transitions. [2021-06-01 16:39:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:20,309 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:20,309 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:20,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-01 16:39:20,309 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 16:39:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:20,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1605592104, now seen corresponding path program 44 times [2021-06-01 16:39:20,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:20,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941005440] [2021-06-01 16:39:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:20,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:20,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941005440] [2021-06-01 16:39:20,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941005440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:20,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:20,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:20,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874230907] [2021-06-01 16:39:20,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:20,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:20,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:20,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:20,563 INFO L87 Difference]: Start difference. First operand 2699 states and 7031 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:21,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:21,409 INFO L93 Difference]: Finished difference Result 3084 states and 7796 transitions. [2021-06-01 16:39:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:21,409 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:21,412 INFO L225 Difference]: With dead ends: 3084 [2021-06-01 16:39:21,412 INFO L226 Difference]: Without dead ends: 3084 [2021-06-01 16:39:21,412 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 616.1ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:21,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-06-01 16:39:21,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2681. [2021-06-01 16:39:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 2.6076894363568495) internal successors, (6986), 2680 states have internal predecessors, (6986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:21,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6986 transitions. [2021-06-01 16:39:21,435 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6986 transitions. Word has length 105 [2021-06-01 16:39:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:21,435 INFO L482 AbstractCegarLoop]: Abstraction has 2681 states and 6986 transitions. [2021-06-01 16:39:21,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:21,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6986 transitions. [2021-06-01 16:39:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:21,437 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:21,438 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] [2021-06-01 16:39:21,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-01 16:39:21,438 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 16:39:21,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:21,438 INFO L82 PathProgramCache]: Analyzing trace with hash -291468002, now seen corresponding path program 45 times [2021-06-01 16:39:21,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:21,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266713198] [2021-06-01 16:39:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:21,696 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 16:39:21,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:21,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266713198] [2021-06-01 16:39:21,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266713198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:21,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:21,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:21,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088088973] [2021-06-01 16:39:21,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:21,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:21,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:21,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:21,697 INFO L87 Difference]: Start difference. First operand 2681 states and 6986 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:22,620 INFO L93 Difference]: Finished difference Result 3297 states and 8221 transitions. [2021-06-01 16:39:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 16:39:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:22,623 INFO L225 Difference]: With dead ends: 3297 [2021-06-01 16:39:22,623 INFO L226 Difference]: Without dead ends: 3297 [2021-06-01 16:39:22,623 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 651.9ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 16:39:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-06-01 16:39:22,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2675. [2021-06-01 16:39:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 2.607931163486719) internal successors, (6971), 2674 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 6971 transitions. [2021-06-01 16:39:22,648 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 6971 transitions. Word has length 105 [2021-06-01 16:39:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:22,648 INFO L482 AbstractCegarLoop]: Abstraction has 2675 states and 6971 transitions. [2021-06-01 16:39:22,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 6971 transitions. [2021-06-01 16:39:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-01 16:39:22,650 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:22,651 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:22,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-01 16:39:22,651 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 16:39:22,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:22,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1694891722, now seen corresponding path program 46 times [2021-06-01 16:39:22,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:22,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933846301] [2021-06-01 16:39:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:22,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:22,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933846301] [2021-06-01 16:39:22,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933846301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:22,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:22,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 16:39:22,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295425320] [2021-06-01 16:39:22,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 16:39:22,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:22,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 16:39:22,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 16:39:22,902 INFO L87 Difference]: Start difference. First operand 2675 states and 6971 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:23,821 INFO L93 Difference]: Finished difference Result 3154 states and 7933 transitions. [2021-06-01 16:39:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 16:39:23,821 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-06-01 16:39:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:23,824 INFO L225 Difference]: With dead ends: 3154 [2021-06-01 16:39:23,824 INFO L226 Difference]: Without dead ends: 3154 [2021-06-01 16:39:23,824 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 695.1ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 16:39:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2021-06-01 16:39:23,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 2564. [2021-06-01 16:39:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 2.6328521264143583) internal successors, (6748), 2563 states have internal predecessors, (6748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:23,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6748 transitions. [2021-06-01 16:39:23,847 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6748 transitions. Word has length 105 [2021-06-01 16:39:23,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:23,847 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6748 transitions. [2021-06-01 16:39:23,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:23,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6748 transitions. [2021-06-01 16:39:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-01 16:39:23,849 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:23,850 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] [2021-06-01 16:39:23,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-01 16:39:23,850 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 16:39:23,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:23,850 INFO L82 PathProgramCache]: Analyzing trace with hash -976559947, now seen corresponding path program 1 times [2021-06-01 16:39:23,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:23,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967376162] [2021-06-01 16:39:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:24,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:24,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967376162] [2021-06-01 16:39:24,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967376162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:24,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:24,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 16:39:24,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986208579] [2021-06-01 16:39:24,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 16:39:24,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:24,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 16:39:24,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-06-01 16:39:24,404 INFO L87 Difference]: Start difference. First operand 2564 states and 6748 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:26,650 INFO L93 Difference]: Finished difference Result 3806 states and 9659 transitions. [2021-06-01 16:39:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 16:39:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-06-01 16:39:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:26,655 INFO L225 Difference]: With dead ends: 3806 [2021-06-01 16:39:26,655 INFO L226 Difference]: Without dead ends: 3649 [2021-06-01 16:39:26,655 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1984.0ms TimeCoverageRelationStatistics Valid=433, Invalid=2017, Unknown=0, NotChecked=0, Total=2450 [2021-06-01 16:39:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2021-06-01 16:39:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 2708. [2021-06-01 16:39:26,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2707 states have (on average 2.621352050240118) internal successors, (7096), 2707 states have internal predecessors, (7096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 7096 transitions. [2021-06-01 16:39:26,685 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 7096 transitions. Word has length 111 [2021-06-01 16:39:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:26,685 INFO L482 AbstractCegarLoop]: Abstraction has 2708 states and 7096 transitions. [2021-06-01 16:39:26,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 7096 transitions. [2021-06-01 16:39:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-01 16:39:26,687 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:26,688 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] [2021-06-01 16:39:26,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-01 16:39:26,688 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 16:39:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:26,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1141043849, now seen corresponding path program 2 times [2021-06-01 16:39:26,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:26,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442212307] [2021-06-01 16:39:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:27,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:27,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442212307] [2021-06-01 16:39:27,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442212307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:27,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:27,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 16:39:27,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415271879] [2021-06-01 16:39:27,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 16:39:27,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:27,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 16:39:27,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-01 16:39:27,237 INFO L87 Difference]: Start difference. First operand 2708 states and 7096 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:29,577 INFO L93 Difference]: Finished difference Result 3704 states and 9384 transitions. [2021-06-01 16:39:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-01 16:39:29,577 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-06-01 16:39:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:29,581 INFO L225 Difference]: With dead ends: 3704 [2021-06-01 16:39:29,581 INFO L226 Difference]: Without dead ends: 3613 [2021-06-01 16:39:29,581 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2074.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2100, Unknown=0, NotChecked=0, Total=2550 [2021-06-01 16:39:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2021-06-01 16:39:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 2672. [2021-06-01 16:39:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2671 states have (on average 2.6207412953949834) internal successors, (7000), 2671 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:29,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 7000 transitions. [2021-06-01 16:39:29,606 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 7000 transitions. Word has length 111 [2021-06-01 16:39:29,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:29,607 INFO L482 AbstractCegarLoop]: Abstraction has 2672 states and 7000 transitions. [2021-06-01 16:39:29,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 7000 transitions. [2021-06-01 16:39:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-01 16:39:29,609 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:29,609 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:29,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-01 16:39:29,609 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 16:39:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:29,609 INFO L82 PathProgramCache]: Analyzing trace with hash -659116491, now seen corresponding path program 3 times [2021-06-01 16:39:29,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:29,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296553682] [2021-06-01 16:39:29,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:30,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:30,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296553682] [2021-06-01 16:39:30,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296553682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:30,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:30,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 16:39:30,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376179664] [2021-06-01 16:39:30,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 16:39:30,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:30,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 16:39:30,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-06-01 16:39:30,119 INFO L87 Difference]: Start difference. First operand 2672 states and 7000 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:31,586 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2021-06-01 16:39:31,751 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2021-06-01 16:39:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:32,360 INFO L93 Difference]: Finished difference Result 3643 states and 9251 transitions. [2021-06-01 16:39:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-01 16:39:32,361 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-06-01 16:39:32,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:32,364 INFO L225 Difference]: With dead ends: 3643 [2021-06-01 16:39:32,364 INFO L226 Difference]: Without dead ends: 3504 [2021-06-01 16:39:32,364 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1955.9ms TimeCoverageRelationStatistics Valid=402, Invalid=1950, Unknown=0, NotChecked=0, Total=2352 [2021-06-01 16:39:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2021-06-01 16:39:32,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2600. [2021-06-01 16:39:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2599 states have (on average 2.6194690265486726) internal successors, (6808), 2599 states have internal predecessors, (6808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 6808 transitions. [2021-06-01 16:39:32,389 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 6808 transitions. Word has length 111 [2021-06-01 16:39:32,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:32,389 INFO L482 AbstractCegarLoop]: Abstraction has 2600 states and 6808 transitions. [2021-06-01 16:39:32,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 6808 transitions. [2021-06-01 16:39:32,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-01 16:39:32,391 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:32,391 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:32,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-01 16:39:32,391 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 16:39:32,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:32,392 INFO L82 PathProgramCache]: Analyzing trace with hash 198046965, now seen corresponding path program 4 times [2021-06-01 16:39:32,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:32,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591963610] [2021-06-01 16:39:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:32,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:32,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591963610] [2021-06-01 16:39:32,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591963610] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:32,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:32,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 16:39:32,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701429469] [2021-06-01 16:39:32,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 16:39:32,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:32,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 16:39:32,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-01 16:39:32,923 INFO L87 Difference]: Start difference. First operand 2600 states and 6808 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:34,527 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-06-01 16:39:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:35,129 INFO L93 Difference]: Finished difference Result 3577 states and 9072 transitions. [2021-06-01 16:39:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-01 16:39:35,129 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-06-01 16:39:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:35,133 INFO L225 Difference]: With dead ends: 3577 [2021-06-01 16:39:35,133 INFO L226 Difference]: Without dead ends: 3468 [2021-06-01 16:39:35,133 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1888.6ms TimeCoverageRelationStatistics Valid=405, Invalid=1947, Unknown=0, NotChecked=0, Total=2352 [2021-06-01 16:39:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2021-06-01 16:39:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 2564. [2021-06-01 16:39:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 2.6188060866172456) internal successors, (6712), 2563 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6712 transitions. [2021-06-01 16:39:35,157 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6712 transitions. Word has length 111 [2021-06-01 16:39:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:35,157 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6712 transitions. [2021-06-01 16:39:35,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6712 transitions. [2021-06-01 16:39:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-01 16:39:35,159 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:35,159 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] [2021-06-01 16:39:35,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-01 16:39:35,160 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 16:39:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash -699849197, now seen corresponding path program 5 times [2021-06-01 16:39:35,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:35,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001981442] [2021-06-01 16:39:35,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:39:35,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:39:35,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:39:35,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001981442] [2021-06-01 16:39:35,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001981442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:39:35,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:39:35,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-01 16:39:35,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118082198] [2021-06-01 16:39:35,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-01 16:39:35,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:39:35,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-01 16:39:35,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-01 16:39:35,767 INFO L87 Difference]: Start difference. First operand 2564 states and 6712 transitions. Second operand has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:39:38,022 INFO L93 Difference]: Finished difference Result 3671 states and 9215 transitions. [2021-06-01 16:39:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 16:39:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-06-01 16:39:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:39:38,026 INFO L225 Difference]: With dead ends: 3671 [2021-06-01 16:39:38,026 INFO L226 Difference]: Without dead ends: 3472 [2021-06-01 16:39:38,027 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2025.7ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-01 16:39:38,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2021-06-01 16:39:38,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 2456. [2021-06-01 16:39:38,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 2455 states have (on average 2.616700610997963) internal successors, (6424), 2455 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 6424 transitions. [2021-06-01 16:39:38,053 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 6424 transitions. Word has length 111 [2021-06-01 16:39:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:39:38,053 INFO L482 AbstractCegarLoop]: Abstraction has 2456 states and 6424 transitions. [2021-06-01 16:39:38,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:39:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 6424 transitions. [2021-06-01 16:39:38,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-01 16:39:38,055 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:39:38,056 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:39:38,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-01 16:39:38,056 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 16:39:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:39:38,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1566479499, now seen corresponding path program 6 times [2021-06-01 16:39:38,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:39:38,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357905439] [2021-06-01 16:39:38,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:39:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-01 16:39:38,072 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-01 16:39:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-01 16:39:38,088 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-01 16:39:38,120 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-01 16:39:38,120 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-01 16:39:38,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-01 16:39:38,122 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-01 16:39:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 04:39:38 BasicIcfg [2021-06-01 16:39:38,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-01 16:39:38,192 INFO L168 Benchmark]: Toolchain (without parser) took 85968.62 ms. Allocated memory was 411.0 MB in the beginning and 1.3 GB in the end (delta: 855.6 MB). Free memory was 371.9 MB in the beginning and 814.2 MB in the end (delta: -442.3 MB). Peak memory consumption was 416.4 MB. Max. memory is 16.0 GB. [2021-06-01 16:39:38,192 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 411.0 MB. Free memory is still 391.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 16:39:38,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.06 ms. Allocated memory is still 411.0 MB. Free memory was 393.4 MB in the beginning and 269.9 MB in the end (delta: 123.4 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.0 GB. [2021-06-01 16:39:38,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 411.0 MB. Free memory was 269.9 MB in the beginning and 266.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 16:39:38,192 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 411.0 MB. Free memory was 266.9 MB in the beginning and 264.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 16:39:38,192 INFO L168 Benchmark]: RCFGBuilder took 606.53 ms. Allocated memory is still 411.0 MB. Free memory was 264.8 MB in the beginning and 213.4 MB in the end (delta: 51.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.0 GB. [2021-06-01 16:39:38,192 INFO L168 Benchmark]: TraceAbstraction took 84588.56 ms. Allocated memory was 411.0 MB in the beginning and 1.3 GB in the end (delta: 855.6 MB). Free memory was 212.3 MB in the beginning and 814.2 MB in the end (delta: -601.9 MB). Peak memory consumption was 256.9 MB. Max. memory is 16.0 GB. [2021-06-01 16:39:38,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 411.0 MB. Free memory is still 391.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 675.06 ms. Allocated memory is still 411.0 MB. Free memory was 393.4 MB in the beginning and 269.9 MB in the end (delta: 123.4 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 411.0 MB. Free memory was 269.9 MB in the beginning and 266.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 411.0 MB. Free memory was 266.9 MB in the beginning and 264.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 606.53 ms. Allocated memory is still 411.0 MB. Free memory was 264.8 MB in the beginning and 213.4 MB in the end (delta: 51.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 84588.56 ms. Allocated memory was 411.0 MB in the beginning and 1.3 GB in the end (delta: 855.6 MB). Free memory was 212.3 MB in the beginning and 814.2 MB in the end (delta: -601.9 MB). Peak memory consumption was 256.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={7:0}, t2={8:0}] [L1688] 0 struct device *my_dev; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1727] 0 return 0; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1736] 0 struct my_data data; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1707] 0 data->shared.a VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1708] 0 data->shared.b VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1712] 0 my_dev = &data->dev VAL [my_dev={9:24}, t1={7:0}, t2={8:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 2 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1715] 0 return 0; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1737] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 1 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1699] 2 data->shared.b = lb + 1 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 2 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1740] 0 data.shared.a VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND TRUE 0 !expression VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 84416.7ms, OverallIterations: 58, TraceHistogramMax: 1, EmptinessCheckTime: 190.6ms, AutomataDifference: 64787.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 114.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11066 SDtfs, 32603 SDslu, 77719 SDs, 0 SdLazy, 37913 SolverSat, 2779 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17118.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2077 GetRequests, 184 SyntacticMatches, 63 SemanticMatches, 1830 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10162 ImplicationChecksByTransitivity, 52438.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4325occurred in iteration=4, InterpolantAutomatonStates: 1216, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2510.9ms AutomataMinimizationTime, 57 MinimizatonAttempts, 72357 StatesRemovedByMinimization, 56 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 95.0ms SsaConstructionTime, 726.1ms SatisfiabilityAnalysisTime, 15407.9ms InterpolantComputationTime, 5883 NumberOfCodeBlocks, 5883 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 5715 ConstructedInterpolants, 0 QuantifiedInterpolants, 78358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 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 proved your program to be incorrect! Received shutdown request...