/usr/bin/java -Xmx8000000000 -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-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:55:39,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:55:39,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:55:39,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:55:39,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:55:39,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:55:39,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:55:39,286 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 [2021-07-13 18:55:39,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:55:39,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:55:39,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:55:39,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:55:39,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:55:39,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:55:39,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:55:39,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:55:39,312 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:55:39,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:55:39,312 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:55:39,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:55:39,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:55:39,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:55:39,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:39,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:55:39,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:55:39,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:55:39,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:55:39,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:55:39,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:55:39,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:55:39,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:55:39,634 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:55:39,635 INFO L432 ainManager$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 [2021-07-13 18:55:39,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ddc135c3/e100cf3a2d1745fa8596282974b9cf15/FLAGb16a7626f [2021-07-13 18:55:40,141 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:55:40,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-07-13 18:55:40,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ddc135c3/e100cf3a2d1745fa8596282974b9cf15/FLAGb16a7626f [2021-07-13 18:55:40,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ddc135c3/e100cf3a2d1745fa8596282974b9cf15 [2021-07-13 18:55:40,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:55:40,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:55:40,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:40,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:55:40,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:55:40,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e20349a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40, skipping insertion in model container [2021-07-13 18:55:40,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:55:40,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:55:40,357 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:55:40,745 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] [2021-07-13 18:55:40,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:40,777 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:55:40,785 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:55:40,806 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] [2021-07-13 18:55:40,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:40,897 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:55:40,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40 WrapperNode [2021-07-13 18:55:40,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:40,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:40,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:55:40,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:55:40,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:40,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:55:40,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:55:40,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:55:40,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:55:40,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:55:40,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:55:40,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:55:40,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (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 [2021-07-13 18:55:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:55:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:55:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:55:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:55:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-13 18:55:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:55:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:55:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-13 18:55:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-13 18:55:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:55:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:55:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:55:41,036 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:55:41,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:55:41,480 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-13 18:55:41,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:41 BoogieIcfgContainer [2021-07-13 18:55:41,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:55:41,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:55:41,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:55:41,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:55:41,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:55:40" (1/3) ... [2021-07-13 18:55:41,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d02cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:41, skipping insertion in model container [2021-07-13 18:55:41,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (2/3) ... [2021-07-13 18:55:41,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d02cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:41, skipping insertion in model container [2021-07-13 18:55:41,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:41" (3/3) ... [2021-07-13 18:55:41,487 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-07-13 18:55:41,490 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:55:41,490 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:55:41,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-13 18:55:41,491 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:55:41,515 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,516 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,516 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,517 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,518 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,518 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,518 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,518 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,518 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,518 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,519 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,520 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,520 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,520 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,520 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,520 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,520 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,521 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,521 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,523 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,523 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,525 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,525 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,536 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,536 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,536 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,540 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,543 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,543 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,544 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,554 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-13 18:55:41,579 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-13 18:55:41,597 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:55:41,597 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:55:41,597 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:55:41,597 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:55:41,597 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:55:41,597 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:55:41,597 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:55:41,598 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:55:41,606 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 162 transitions, 346 flow [2021-07-13 18:55:41,739 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4270 states, 4260 states have (on average 2.7514084507042256) internal successors, (11721), 4269 states have internal predecessors, (11721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 4270 states, 4260 states have (on average 2.7514084507042256) internal successors, (11721), 4269 states have internal predecessors, (11721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-13 18:55:41,756 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:41,757 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:41,757 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]=== [2021-07-13 18:55:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:41,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1369970770, now seen corresponding path program 1 times [2021-07-13 18:55:41,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:41,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956940418] [2021-07-13 18:55:41,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:42,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:42,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956940418] [2021-07-13 18:55:42,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956940418] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:42,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:42,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:42,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099063933] [2021-07-13 18:55:42,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:42,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:42,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:42,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:42,065 INFO L87 Difference]: Start difference. First operand has 4270 states, 4260 states have (on average 2.7514084507042256) internal successors, (11721), 4269 states have internal predecessors, (11721), 0 states have call successors, (0), 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) [2021-07-13 18:55:42,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:42,277 INFO L93 Difference]: Finished difference Result 4064 states and 10950 transitions. [2021-07-13 18:55:42,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:55:42,279 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 [2021-07-13 18:55:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:42,308 INFO L225 Difference]: With dead ends: 4064 [2021-07-13 18:55:42,308 INFO L226 Difference]: Without dead ends: 3358 [2021-07-13 18:55:42,309 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 62.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:55:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-07-13 18:55:42,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3357. [2021-07-13 18:55:42,494 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) [2021-07-13 18:55:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 8983 transitions. [2021-07-13 18:55:42,510 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 8983 transitions. Word has length 36 [2021-07-13 18:55:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:42,511 INFO L482 AbstractCegarLoop]: Abstraction has 3357 states and 8983 transitions. [2021-07-13 18:55:42,521 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) [2021-07-13 18:55:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 8983 transitions. [2021-07-13 18:55:42,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-13 18:55:42,522 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:42,522 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:42,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:55:42,523 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]=== [2021-07-13 18:55:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:42,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1499060535, now seen corresponding path program 1 times [2021-07-13 18:55:42,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:42,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671450099] [2021-07-13 18:55:42,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:42,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:42,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671450099] [2021-07-13 18:55:42,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671450099] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:42,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:42,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:42,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743393647] [2021-07-13 18:55:42,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:42,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:42,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:42,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:42,625 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) [2021-07-13 18:55:42,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:42,753 INFO L93 Difference]: Finished difference Result 3359 states and 8985 transitions. [2021-07-13 18:55:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:42,753 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 [2021-07-13 18:55:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:42,766 INFO L225 Difference]: With dead ends: 3359 [2021-07-13 18:55:42,766 INFO L226 Difference]: Without dead ends: 3359 [2021-07-13 18:55:42,767 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 50.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:55:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2021-07-13 18:55:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2021-07-13 18:55:42,839 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) [2021-07-13 18:55:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 8981 transitions. [2021-07-13 18:55:42,851 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 8981 transitions. Word has length 42 [2021-07-13 18:55:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:42,851 INFO L482 AbstractCegarLoop]: Abstraction has 3355 states and 8981 transitions. [2021-07-13 18:55:42,852 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) [2021-07-13 18:55:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 8981 transitions. [2021-07-13 18:55:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:55:42,854 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:42,855 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:42,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:55:42,855 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]=== [2021-07-13 18:55:42,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:42,855 INFO L82 PathProgramCache]: Analyzing trace with hash 709377487, now seen corresponding path program 1 times [2021-07-13 18:55:42,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:42,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385972090] [2021-07-13 18:55:42,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:42,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:42,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385972090] [2021-07-13 18:55:42,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385972090] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:42,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:42,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:42,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101229776] [2021-07-13 18:55:42,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:42,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:42,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:42,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:42,988 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) [2021-07-13 18:55:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:43,279 INFO L93 Difference]: Finished difference Result 4878 states and 13059 transitions. [2021-07-13 18:55:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:55:43,279 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 [2021-07-13 18:55:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:43,301 INFO L225 Difference]: With dead ends: 4878 [2021-07-13 18:55:43,301 INFO L226 Difference]: Without dead ends: 4878 [2021-07-13 18:55:43,302 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 97.7ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:43,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2021-07-13 18:55:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 3753. [2021-07-13 18:55:43,393 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) [2021-07-13 18:55:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 10059 transitions. [2021-07-13 18:55:43,407 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 10059 transitions. Word has length 60 [2021-07-13 18:55:43,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:43,409 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 10059 transitions. [2021-07-13 18:55:43,409 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) [2021-07-13 18:55:43,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 10059 transitions. [2021-07-13 18:55:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:55:43,411 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:43,411 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:43,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:55:43,412 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]=== [2021-07-13 18:55:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:43,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1924610094, now seen corresponding path program 1 times [2021-07-13 18:55:43,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:43,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230253178] [2021-07-13 18:55:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:43,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:43,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230253178] [2021-07-13 18:55:43,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230253178] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:43,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:43,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:43,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999321579] [2021-07-13 18:55:43,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:43,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:43,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:43,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:43,487 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) [2021-07-13 18:55:43,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:43,722 INFO L93 Difference]: Finished difference Result 5276 states and 14062 transitions. [2021-07-13 18:55:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:43,723 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 [2021-07-13 18:55:43,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:43,739 INFO L225 Difference]: With dead ends: 5276 [2021-07-13 18:55:43,739 INFO L226 Difference]: Without dead ends: 4475 [2021-07-13 18:55:43,739 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 65.2ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:55:43,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2021-07-13 18:55:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4325. [2021-07-13 18:55:43,825 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) [2021-07-13 18:55:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 11637 transitions. [2021-07-13 18:55:43,839 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 11637 transitions. Word has length 66 [2021-07-13 18:55:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:43,839 INFO L482 AbstractCegarLoop]: Abstraction has 4325 states and 11637 transitions. [2021-07-13 18:55:43,839 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) [2021-07-13 18:55:43,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 11637 transitions. [2021-07-13 18:55:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-07-13 18:55:43,847 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:43,847 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:43,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:55:43,848 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]=== [2021-07-13 18:55:43,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:43,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1721881747, now seen corresponding path program 1 times [2021-07-13 18:55:43,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:43,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889638775] [2021-07-13 18:55:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:43,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:43,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889638775] [2021-07-13 18:55:43,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889638775] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:43,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:43,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:55:43,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913874276] [2021-07-13 18:55:43,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:55:43,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:43,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:55:43,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:55:43,934 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) [2021-07-13 18:55:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:43,966 INFO L93 Difference]: Finished difference Result 1631 states and 4196 transitions. [2021-07-13 18:55:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 18:55:43,967 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 [2021-07-13 18:55:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:43,986 INFO L225 Difference]: With dead ends: 1631 [2021-07-13 18:55:43,986 INFO L226 Difference]: Without dead ends: 1631 [2021-07-13 18:55:43,987 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:43,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2021-07-13 18:55:44,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2021-07-13 18:55:44,013 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) [2021-07-13 18:55:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 4196 transitions. [2021-07-13 18:55:44,018 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 4196 transitions. Word has length 78 [2021-07-13 18:55:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:44,018 INFO L482 AbstractCegarLoop]: Abstraction has 1631 states and 4196 transitions. [2021-07-13 18:55:44,018 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) [2021-07-13 18:55:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 4196 transitions. [2021-07-13 18:55:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:44,021 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:44,021 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:44,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:55:44,022 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]=== [2021-07-13 18:55:44,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:44,022 INFO L82 PathProgramCache]: Analyzing trace with hash -505570266, now seen corresponding path program 1 times [2021-07-13 18:55:44,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:44,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044849409] [2021-07-13 18:55:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:44,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:44,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:44,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044849409] [2021-07-13 18:55:44,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044849409] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:44,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:44,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:44,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141823029] [2021-07-13 18:55:44,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:44,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:44,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:44,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:44,659 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) [2021-07-13 18:55:47,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:47,335 INFO L93 Difference]: Finished difference Result 2666 states and 6940 transitions. [2021-07-13 18:55:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-13 18:55:47,336 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 [2021-07-13 18:55:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:47,342 INFO L225 Difference]: With dead ends: 2666 [2021-07-13 18:55:47,342 INFO L226 Difference]: Without dead ends: 2666 [2021-07-13 18:55:47,343 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1953.8ms TimeCoverageRelationStatistics Valid=842, Invalid=2464, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 18:55:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2021-07-13 18:55:47,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2566. [2021-07-13 18:55:47,378 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) [2021-07-13 18:55:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 6750 transitions. [2021-07-13 18:55:47,384 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 6750 transitions. Word has length 105 [2021-07-13 18:55:47,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:47,384 INFO L482 AbstractCegarLoop]: Abstraction has 2566 states and 6750 transitions. [2021-07-13 18:55:47,384 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) [2021-07-13 18:55:47,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 6750 transitions. [2021-07-13 18:55:47,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:47,389 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:47,389 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:47,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:55:47,389 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]=== [2021-07-13 18:55:47,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:47,390 INFO L82 PathProgramCache]: Analyzing trace with hash 718656712, now seen corresponding path program 1 times [2021-07-13 18:55:47,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:47,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383368049] [2021-07-13 18:55:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:47,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:47,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383368049] [2021-07-13 18:55:47,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383368049] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:47,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:47,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:55:47,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831481576] [2021-07-13 18:55:47,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:55:47,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:47,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:55:47,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:47,721 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) [2021-07-13 18:55:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:48,392 INFO L93 Difference]: Finished difference Result 3789 states and 9757 transitions. [2021-07-13 18:55:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:55:48,392 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 [2021-07-13 18:55:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:48,399 INFO L225 Difference]: With dead ends: 3789 [2021-07-13 18:55:48,399 INFO L226 Difference]: Without dead ends: 3789 [2021-07-13 18:55:48,400 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 444.7ms TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-07-13 18:55:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2021-07-13 18:55:48,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3036. [2021-07-13 18:55:48,452 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) [2021-07-13 18:55:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 7841 transitions. [2021-07-13 18:55:48,457 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 7841 transitions. Word has length 105 [2021-07-13 18:55:48,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:48,458 INFO L482 AbstractCegarLoop]: Abstraction has 3036 states and 7841 transitions. [2021-07-13 18:55:48,458 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) [2021-07-13 18:55:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 7841 transitions. [2021-07-13 18:55:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:48,463 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:48,463 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:48,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:55:48,463 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]=== [2021-07-13 18:55:48,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:48,464 INFO L82 PathProgramCache]: Analyzing trace with hash 2017533660, now seen corresponding path program 2 times [2021-07-13 18:55:48,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:48,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215985228] [2021-07-13 18:55:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:48,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:48,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215985228] [2021-07-13 18:55:48,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215985228] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:48,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:48,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:55:48,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74937089] [2021-07-13 18:55:48,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:55:48,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:48,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:55:48,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:48,694 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) [2021-07-13 18:55:49,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:49,405 INFO L93 Difference]: Finished difference Result 4077 states and 10298 transitions. [2021-07-13 18:55:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:55:49,406 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 [2021-07-13 18:55:49,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:49,414 INFO L225 Difference]: With dead ends: 4077 [2021-07-13 18:55:49,414 INFO L226 Difference]: Without dead ends: 4077 [2021-07-13 18:55:49,415 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 495.9ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:55:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2021-07-13 18:55:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3066. [2021-07-13 18:55:49,473 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) [2021-07-13 18:55:49,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 7918 transitions. [2021-07-13 18:55:49,479 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 7918 transitions. Word has length 105 [2021-07-13 18:55:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:49,480 INFO L482 AbstractCegarLoop]: Abstraction has 3066 states and 7918 transitions. [2021-07-13 18:55:49,480 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) [2021-07-13 18:55:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 7918 transitions. [2021-07-13 18:55:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:49,485 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:49,485 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:49,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:55:49,485 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]=== [2021-07-13 18:55:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:49,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1530062584, now seen corresponding path program 3 times [2021-07-13 18:55:49,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:49,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381748387] [2021-07-13 18:55:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:49,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:49,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381748387] [2021-07-13 18:55:49,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381748387] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:49,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:49,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:55:49,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542758699] [2021-07-13 18:55:49,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:55:49,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:49,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:55:49,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:55:49,933 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) [2021-07-13 18:55:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:51,691 INFO L93 Difference]: Finished difference Result 4299 states and 10825 transitions. [2021-07-13 18:55:51,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:55:51,692 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 [2021-07-13 18:55:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:51,700 INFO L225 Difference]: With dead ends: 4299 [2021-07-13 18:55:51,700 INFO L226 Difference]: Without dead ends: 4299 [2021-07-13 18:55:51,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1403.4ms TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:55:51,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2021-07-13 18:55:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 3356. [2021-07-13 18:55:51,775 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) [2021-07-13 18:55:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8666 transitions. [2021-07-13 18:55:51,787 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8666 transitions. Word has length 105 [2021-07-13 18:55:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:51,787 INFO L482 AbstractCegarLoop]: Abstraction has 3356 states and 8666 transitions. [2021-07-13 18:55:51,787 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) [2021-07-13 18:55:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8666 transitions. [2021-07-13 18:55:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:51,795 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:51,795 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:51,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:55:51,796 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]=== [2021-07-13 18:55:51,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:51,796 INFO L82 PathProgramCache]: Analyzing trace with hash 187169344, now seen corresponding path program 4 times [2021-07-13 18:55:51,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:51,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169885421] [2021-07-13 18:55:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:52,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:52,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169885421] [2021-07-13 18:55:52,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169885421] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:52,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:52,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:55:52,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341164978] [2021-07-13 18:55:52,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:55:52,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:55:52,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:55:52,138 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) [2021-07-13 18:55:53,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:53,315 INFO L93 Difference]: Finished difference Result 4498 states and 11407 transitions. [2021-07-13 18:55:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:55:53,315 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 [2021-07-13 18:55:53,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:53,330 INFO L225 Difference]: With dead ends: 4498 [2021-07-13 18:55:53,330 INFO L226 Difference]: Without dead ends: 4498 [2021-07-13 18:55:53,331 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 968.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:55:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-07-13 18:55:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 3551. [2021-07-13 18:55:53,390 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) [2021-07-13 18:55:53,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 9227 transitions. [2021-07-13 18:55:53,397 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 9227 transitions. Word has length 105 [2021-07-13 18:55:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:53,397 INFO L482 AbstractCegarLoop]: Abstraction has 3551 states and 9227 transitions. [2021-07-13 18:55:53,397 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) [2021-07-13 18:55:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 9227 transitions. [2021-07-13 18:55:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:53,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:53,404 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:53,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 18:55:53,404 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]=== [2021-07-13 18:55:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash -264900710, now seen corresponding path program 5 times [2021-07-13 18:55:53,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:53,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627437446] [2021-07-13 18:55:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:53,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:53,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627437446] [2021-07-13 18:55:53,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627437446] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:53,755 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:53,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:55:53,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198470038] [2021-07-13 18:55:53,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:55:53,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:53,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:55:53,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:55:53,758 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) [2021-07-13 18:55:55,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:55,030 INFO L93 Difference]: Finished difference Result 4275 states and 10837 transitions. [2021-07-13 18:55:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:55:55,030 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 [2021-07-13 18:55:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:55,036 INFO L225 Difference]: With dead ends: 4275 [2021-07-13 18:55:55,036 INFO L226 Difference]: Without dead ends: 4275 [2021-07-13 18:55:55,037 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1037.6ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:55:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2021-07-13 18:55:55,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 3553. [2021-07-13 18:55:55,092 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) [2021-07-13 18:55:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 9232 transitions. [2021-07-13 18:55:55,098 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 9232 transitions. Word has length 105 [2021-07-13 18:55:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:55,099 INFO L482 AbstractCegarLoop]: Abstraction has 3553 states and 9232 transitions. [2021-07-13 18:55:55,099 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) [2021-07-13 18:55:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 9232 transitions. [2021-07-13 18:55:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:55,105 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:55,105 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:55,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 18:55:55,106 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]=== [2021-07-13 18:55:55,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:55,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1033652586, now seen corresponding path program 6 times [2021-07-13 18:55:55,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:55,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088323105] [2021-07-13 18:55:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:55,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:55,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088323105] [2021-07-13 18:55:55,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088323105] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:55,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:55,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:55:55,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397818552] [2021-07-13 18:55:55,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:55:55,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:55,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:55:55,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:55:55,498 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) [2021-07-13 18:55:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:57,151 INFO L93 Difference]: Finished difference Result 5180 states and 12800 transitions. [2021-07-13 18:55:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:55:57,151 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 [2021-07-13 18:55:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:57,159 INFO L225 Difference]: With dead ends: 5180 [2021-07-13 18:55:57,159 INFO L226 Difference]: Without dead ends: 5180 [2021-07-13 18:55:57,160 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1353.4ms TimeCoverageRelationStatistics Valid=423, Invalid=1217, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:55:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-07-13 18:55:57,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 3529. [2021-07-13 18:55:57,220 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) [2021-07-13 18:55:57,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 9160 transitions. [2021-07-13 18:55:57,227 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 9160 transitions. Word has length 105 [2021-07-13 18:55:57,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:57,227 INFO L482 AbstractCegarLoop]: Abstraction has 3529 states and 9160 transitions. [2021-07-13 18:55:57,227 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) [2021-07-13 18:55:57,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 9160 transitions. [2021-07-13 18:55:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:57,233 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:57,234 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:57,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 18:55:57,234 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]=== [2021-07-13 18:55:57,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:57,234 INFO L82 PathProgramCache]: Analyzing trace with hash -581872960, now seen corresponding path program 7 times [2021-07-13 18:55:57,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:57,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826228148] [2021-07-13 18:55:57,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:57,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:57,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:57,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826228148] [2021-07-13 18:55:57,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826228148] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:57,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:57,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:55:57,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437786691] [2021-07-13 18:55:57,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:55:57,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:57,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:55:57,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:55:57,706 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) [2021-07-13 18:55:59,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:59,310 INFO L93 Difference]: Finished difference Result 4434 states and 11097 transitions. [2021-07-13 18:55:59,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:55:59,310 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 [2021-07-13 18:55:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:59,316 INFO L225 Difference]: With dead ends: 4434 [2021-07-13 18:55:59,316 INFO L226 Difference]: Without dead ends: 4434 [2021-07-13 18:55:59,317 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1325.6ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:55:59,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2021-07-13 18:55:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 3537. [2021-07-13 18:55:59,381 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) [2021-07-13 18:55:59,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 9180 transitions. [2021-07-13 18:55:59,387 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 9180 transitions. Word has length 105 [2021-07-13 18:55:59,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:59,387 INFO L482 AbstractCegarLoop]: Abstraction has 3537 states and 9180 transitions. [2021-07-13 18:55:59,387 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) [2021-07-13 18:55:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 9180 transitions. [2021-07-13 18:55:59,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:55:59,394 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:59,394 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:59,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 18:55:59,394 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]=== [2021-07-13 18:55:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1464091298, now seen corresponding path program 8 times [2021-07-13 18:55:59,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:59,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79985567] [2021-07-13 18:55:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:59,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:59,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79985567] [2021-07-13 18:55:59,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79985567] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:59,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:59,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:55:59,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870580832] [2021-07-13 18:55:59,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:55:59,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:59,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:55:59,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:55:59,715 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) [2021-07-13 18:56:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:01,485 INFO L93 Difference]: Finished difference Result 5067 states and 12513 transitions. [2021-07-13 18:56:01,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:56:01,486 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 [2021-07-13 18:56:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:01,492 INFO L225 Difference]: With dead ends: 5067 [2021-07-13 18:56:01,492 INFO L226 Difference]: Without dead ends: 5067 [2021-07-13 18:56:01,492 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1451.4ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 18:56:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2021-07-13 18:56:01,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 3531. [2021-07-13 18:56:01,553 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) [2021-07-13 18:56:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 9165 transitions. [2021-07-13 18:56:01,580 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 9165 transitions. Word has length 105 [2021-07-13 18:56:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:01,581 INFO L482 AbstractCegarLoop]: Abstraction has 3531 states and 9165 transitions. [2021-07-13 18:56:01,581 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) [2021-07-13 18:56:01,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 9165 transitions. [2021-07-13 18:56:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:01,589 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:01,589 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:01,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 18:56:01,589 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]=== [2021-07-13 18:56:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:01,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1036005680, now seen corresponding path program 9 times [2021-07-13 18:56:01,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:01,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841293032] [2021-07-13 18:56:01,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:01,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:01,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841293032] [2021-07-13 18:56:01,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841293032] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:01,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:01,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:56:01,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519521578] [2021-07-13 18:56:01,853 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:56:01,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:01,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:56:01,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:56:01,854 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) [2021-07-13 18:56:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:02,421 INFO L93 Difference]: Finished difference Result 3944 states and 9981 transitions. [2021-07-13 18:56:02,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:56:02,422 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 [2021-07-13 18:56:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:02,427 INFO L225 Difference]: With dead ends: 3944 [2021-07-13 18:56:02,427 INFO L226 Difference]: Without dead ends: 3944 [2021-07-13 18:56:02,428 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 451.3ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:56:02,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2021-07-13 18:56:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3527. [2021-07-13 18:56:02,483 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) [2021-07-13 18:56:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9161 transitions. [2021-07-13 18:56:02,489 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9161 transitions. Word has length 105 [2021-07-13 18:56:02,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:02,489 INFO L482 AbstractCegarLoop]: Abstraction has 3527 states and 9161 transitions. [2021-07-13 18:56:02,489 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) [2021-07-13 18:56:02,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9161 transitions. [2021-07-13 18:56:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:02,497 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:02,497 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:02,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-13 18:56:02,498 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]=== [2021-07-13 18:56:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:02,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1817533888, now seen corresponding path program 10 times [2021-07-13 18:56:02,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:02,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446637896] [2021-07-13 18:56:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:02,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:02,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446637896] [2021-07-13 18:56:02,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446637896] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:02,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:02,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:02,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879927114] [2021-07-13 18:56:02,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:02,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:02,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:02,843 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) [2021-07-13 18:56:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:04,004 INFO L93 Difference]: Finished difference Result 4153 states and 10417 transitions. [2021-07-13 18:56:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:04,005 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 [2021-07-13 18:56:04,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:04,011 INFO L225 Difference]: With dead ends: 4153 [2021-07-13 18:56:04,011 INFO L226 Difference]: Without dead ends: 4153 [2021-07-13 18:56:04,011 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 958.5ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2021-07-13 18:56:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 3533. [2021-07-13 18:56:04,060 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) [2021-07-13 18:56:04,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 9176 transitions. [2021-07-13 18:56:04,067 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 9176 transitions. Word has length 105 [2021-07-13 18:56:04,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:04,067 INFO L482 AbstractCegarLoop]: Abstraction has 3533 states and 9176 transitions. [2021-07-13 18:56:04,067 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) [2021-07-13 18:56:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 9176 transitions. [2021-07-13 18:56:04,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:04,073 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:04,073 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:04,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-13 18:56:04,073 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]=== [2021-07-13 18:56:04,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:04,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1261524376, now seen corresponding path program 11 times [2021-07-13 18:56:04,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:04,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076079663] [2021-07-13 18:56:04,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:04,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:04,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076079663] [2021-07-13 18:56:04,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076079663] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:04,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:04,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:56:04,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235275770] [2021-07-13 18:56:04,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:56:04,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:04,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:56:04,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:56:04,311 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) [2021-07-13 18:56:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:04,862 INFO L93 Difference]: Finished difference Result 4509 states and 11212 transitions. [2021-07-13 18:56:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:56:04,862 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 [2021-07-13 18:56:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:04,868 INFO L225 Difference]: With dead ends: 4509 [2021-07-13 18:56:04,869 INFO L226 Difference]: Without dead ends: 4509 [2021-07-13 18:56:04,869 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 414.4ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:56:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2021-07-13 18:56:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 3520. [2021-07-13 18:56:04,922 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) [2021-07-13 18:56:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 9138 transitions. [2021-07-13 18:56:04,928 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 9138 transitions. Word has length 105 [2021-07-13 18:56:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:04,928 INFO L482 AbstractCegarLoop]: Abstraction has 3520 states and 9138 transitions. [2021-07-13 18:56:04,929 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) [2021-07-13 18:56:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 9138 transitions. [2021-07-13 18:56:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:04,934 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:04,934 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:04,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-13 18:56:04,934 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]=== [2021-07-13 18:56:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:04,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1403832828, now seen corresponding path program 12 times [2021-07-13 18:56:04,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:04,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633775517] [2021-07-13 18:56:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:05,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:05,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633775517] [2021-07-13 18:56:05,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633775517] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:05,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:05,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:56:05,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228348175] [2021-07-13 18:56:05,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:56:05,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:05,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:56:05,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:56:05,313 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) [2021-07-13 18:56:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:06,389 INFO L93 Difference]: Finished difference Result 5120 states and 12988 transitions. [2021-07-13 18:56:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:56:06,390 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 [2021-07-13 18:56:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:06,397 INFO L225 Difference]: With dead ends: 5120 [2021-07-13 18:56:06,397 INFO L226 Difference]: Without dead ends: 5120 [2021-07-13 18:56:06,398 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 930.7ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2021-07-13 18:56:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3619. [2021-07-13 18:56:06,453 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) [2021-07-13 18:56:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-07-13 18:56:06,459 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-07-13 18:56:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:06,459 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-07-13 18:56:06,459 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) [2021-07-13 18:56:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-07-13 18:56:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:06,465 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:06,465 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:06,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 18:56:06,465 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]=== [2021-07-13 18:56:06,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:06,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2142019302, now seen corresponding path program 13 times [2021-07-13 18:56:06,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:06,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283770406] [2021-07-13 18:56:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:06,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:06,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283770406] [2021-07-13 18:56:06,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283770406] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:06,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:06,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:06,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571572020] [2021-07-13 18:56:06,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:06,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:06,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:06,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:06,801 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) [2021-07-13 18:56:08,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:08,081 INFO L93 Difference]: Finished difference Result 5756 states and 14572 transitions. [2021-07-13 18:56:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:56:08,082 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 [2021-07-13 18:56:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:08,090 INFO L225 Difference]: With dead ends: 5756 [2021-07-13 18:56:08,090 INFO L226 Difference]: Without dead ends: 5756 [2021-07-13 18:56:08,090 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 998.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:08,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-07-13 18:56:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 3655. [2021-07-13 18:56:08,151 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) [2021-07-13 18:56:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9519 transitions. [2021-07-13 18:56:08,157 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9519 transitions. Word has length 105 [2021-07-13 18:56:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:08,157 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9519 transitions. [2021-07-13 18:56:08,157 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) [2021-07-13 18:56:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9519 transitions. [2021-07-13 18:56:08,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:08,163 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:08,163 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:08,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 18:56:08,163 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]=== [2021-07-13 18:56:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:08,164 INFO L82 PathProgramCache]: Analyzing trace with hash -780507476, now seen corresponding path program 14 times [2021-07-13 18:56:08,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:08,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173611900] [2021-07-13 18:56:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:08,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:08,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:08,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173611900] [2021-07-13 18:56:08,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173611900] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:08,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:08,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:08,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294257830] [2021-07-13 18:56:08,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:08,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:08,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:08,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:08,493 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) [2021-07-13 18:56:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:09,780 INFO L93 Difference]: Finished difference Result 5527 states and 13989 transitions. [2021-07-13 18:56:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:09,781 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 [2021-07-13 18:56:09,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:09,788 INFO L225 Difference]: With dead ends: 5527 [2021-07-13 18:56:09,788 INFO L226 Difference]: Without dead ends: 5527 [2021-07-13 18:56:09,789 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1047.1ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:09,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-07-13 18:56:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 3619. [2021-07-13 18:56:09,844 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) [2021-07-13 18:56:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-07-13 18:56:09,849 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-07-13 18:56:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:09,849 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-07-13 18:56:09,850 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) [2021-07-13 18:56:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-07-13 18:56:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:09,855 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:09,855 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:09,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 18:56:09,856 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]=== [2021-07-13 18:56:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:09,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1399086824, now seen corresponding path program 15 times [2021-07-13 18:56:09,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:09,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036524631] [2021-07-13 18:56:09,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:10,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:10,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036524631] [2021-07-13 18:56:10,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036524631] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:10,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:10,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:56:10,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414442482] [2021-07-13 18:56:10,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:56:10,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:10,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:56:10,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:56:10,231 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 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) [2021-07-13 18:56:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:11,476 INFO L93 Difference]: Finished difference Result 5385 states and 13490 transitions. [2021-07-13 18:56:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:11,477 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 [2021-07-13 18:56:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:11,484 INFO L225 Difference]: With dead ends: 5385 [2021-07-13 18:56:11,484 INFO L226 Difference]: Without dead ends: 5385 [2021-07-13 18:56:11,485 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 987.6ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:56:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5385 states. [2021-07-13 18:56:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5385 to 3621. [2021-07-13 18:56:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3619 states have (on average 2.601823708206687) internal successors, (9416), 3620 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9416 transitions. [2021-07-13 18:56:11,546 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9416 transitions. Word has length 105 [2021-07-13 18:56:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:11,546 INFO L482 AbstractCegarLoop]: Abstraction has 3621 states and 9416 transitions. [2021-07-13 18:56:11,546 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) [2021-07-13 18:56:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9416 transitions. [2021-07-13 18:56:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:11,551 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:11,551 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:11,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 18:56:11,551 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]=== [2021-07-13 18:56:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:11,552 INFO L82 PathProgramCache]: Analyzing trace with hash 661048320, now seen corresponding path program 16 times [2021-07-13 18:56:11,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:11,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162826922] [2021-07-13 18:56:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:11,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:11,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162826922] [2021-07-13 18:56:11,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162826922] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:11,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:11,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:56:11,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300602471] [2021-07-13 18:56:11,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:56:11,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:11,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:56:11,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:56:11,948 INFO L87 Difference]: Start difference. First operand 3621 states and 9416 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) [2021-07-13 18:56:13,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:13,309 INFO L93 Difference]: Finished difference Result 5365 states and 13447 transitions. [2021-07-13 18:56:13,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:13,309 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 [2021-07-13 18:56:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:13,315 INFO L225 Difference]: With dead ends: 5365 [2021-07-13 18:56:13,315 INFO L226 Difference]: Without dead ends: 5365 [2021-07-13 18:56:13,315 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1148.6ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:56:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2021-07-13 18:56:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 3621. [2021-07-13 18:56:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3619 states have (on average 2.601823708206687) internal successors, (9416), 3620 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9416 transitions. [2021-07-13 18:56:13,361 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9416 transitions. Word has length 105 [2021-07-13 18:56:13,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:13,361 INFO L482 AbstractCegarLoop]: Abstraction has 3621 states and 9416 transitions. [2021-07-13 18:56:13,361 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) [2021-07-13 18:56:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9416 transitions. [2021-07-13 18:56:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:13,366 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:13,366 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:13,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-13 18:56:13,367 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]=== [2021-07-13 18:56:13,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:13,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152698, now seen corresponding path program 17 times [2021-07-13 18:56:13,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:13,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999110269] [2021-07-13 18:56:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:13,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:13,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999110269] [2021-07-13 18:56:13,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999110269] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:13,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:13,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:13,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487557970] [2021-07-13 18:56:13,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:13,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:13,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:13,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:13,650 INFO L87 Difference]: Start difference. First operand 3621 states and 9416 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) [2021-07-13 18:56:15,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:15,297 INFO L93 Difference]: Finished difference Result 6445 states and 16064 transitions. [2021-07-13 18:56:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:56:15,298 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 [2021-07-13 18:56:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:15,306 INFO L225 Difference]: With dead ends: 6445 [2021-07-13 18:56:15,306 INFO L226 Difference]: Without dead ends: 6445 [2021-07-13 18:56:15,306 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1421.3ms TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:56:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2021-07-13 18:56:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 3669. [2021-07-13 18:56:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3667 states have (on average 2.6070357240250885) internal successors, (9560), 3668 states have internal predecessors, (9560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 9560 transitions. [2021-07-13 18:56:15,359 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 9560 transitions. Word has length 105 [2021-07-13 18:56:15,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:15,359 INFO L482 AbstractCegarLoop]: Abstraction has 3669 states and 9560 transitions. [2021-07-13 18:56:15,359 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) [2021-07-13 18:56:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 9560 transitions. [2021-07-13 18:56:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:15,364 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:15,364 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:15,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-13 18:56:15,364 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]=== [2021-07-13 18:56:15,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:15,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1197374080, now seen corresponding path program 18 times [2021-07-13 18:56:15,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:15,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208685906] [2021-07-13 18:56:15,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:15,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:15,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208685906] [2021-07-13 18:56:15,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208685906] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:15,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:15,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:15,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47463748] [2021-07-13 18:56:15,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:15,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:15,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:15,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:15,654 INFO L87 Difference]: Start difference. First operand 3669 states and 9560 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) [2021-07-13 18:56:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:17,428 INFO L93 Difference]: Finished difference Result 6210 states and 15468 transitions. [2021-07-13 18:56:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:56:17,429 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 [2021-07-13 18:56:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:17,438 INFO L225 Difference]: With dead ends: 6210 [2021-07-13 18:56:17,438 INFO L226 Difference]: Without dead ends: 6210 [2021-07-13 18:56:17,439 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1418.8ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:56:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6210 states. [2021-07-13 18:56:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6210 to 3633. [2021-07-13 18:56:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3631 states have (on average 2.60313963095566) internal successors, (9452), 3632 states have internal predecessors, (9452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 9452 transitions. [2021-07-13 18:56:17,500 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 9452 transitions. Word has length 105 [2021-07-13 18:56:17,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:17,501 INFO L482 AbstractCegarLoop]: Abstraction has 3633 states and 9452 transitions. [2021-07-13 18:56:17,501 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) [2021-07-13 18:56:17,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 9452 transitions. [2021-07-13 18:56:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:17,505 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:17,505 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:17,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-13 18:56:17,505 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]=== [2021-07-13 18:56:17,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:17,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1266058644, now seen corresponding path program 19 times [2021-07-13 18:56:17,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:17,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180472785] [2021-07-13 18:56:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:17,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:17,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180472785] [2021-07-13 18:56:17,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180472785] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:17,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:17,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:17,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378375500] [2021-07-13 18:56:17,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:17,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:17,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:17,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:17,832 INFO L87 Difference]: Start difference. First operand 3633 states and 9452 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) [2021-07-13 18:56:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:19,170 INFO L93 Difference]: Finished difference Result 5623 states and 14017 transitions. [2021-07-13 18:56:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:19,170 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 [2021-07-13 18:56:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:19,178 INFO L225 Difference]: With dead ends: 5623 [2021-07-13 18:56:19,178 INFO L226 Difference]: Without dead ends: 5623 [2021-07-13 18:56:19,178 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1074.2ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2021-07-13 18:56:19,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 3621. [2021-07-13 18:56:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3619 states have (on average 2.601823708206687) internal successors, (9416), 3620 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9416 transitions. [2021-07-13 18:56:19,233 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9416 transitions. Word has length 105 [2021-07-13 18:56:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:19,233 INFO L482 AbstractCegarLoop]: Abstraction has 3621 states and 9416 transitions. [2021-07-13 18:56:19,233 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) [2021-07-13 18:56:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9416 transitions. [2021-07-13 18:56:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:19,237 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:19,237 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:19,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-13 18:56:19,237 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]=== [2021-07-13 18:56:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:19,237 INFO L82 PathProgramCache]: Analyzing trace with hash -229225916, now seen corresponding path program 20 times [2021-07-13 18:56:19,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:19,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906619631] [2021-07-13 18:56:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:19,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:19,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:19,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906619631] [2021-07-13 18:56:19,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906619631] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:19,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:19,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:56:19,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555878668] [2021-07-13 18:56:19,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:56:19,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:19,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:56:19,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:56:19,524 INFO L87 Difference]: Start difference. First operand 3621 states and 9416 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) [2021-07-13 18:56:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:20,146 INFO L93 Difference]: Finished difference Result 4633 states and 11464 transitions. [2021-07-13 18:56:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:56:20,147 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 [2021-07-13 18:56:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:20,153 INFO L225 Difference]: With dead ends: 4633 [2021-07-13 18:56:20,153 INFO L226 Difference]: Without dead ends: 4633 [2021-07-13 18:56:20,154 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 484.7ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:56:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4633 states. [2021-07-13 18:56:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4633 to 3624. [2021-07-13 18:56:20,205 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) [2021-07-13 18:56:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9418 transitions. [2021-07-13 18:56:20,211 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9418 transitions. Word has length 105 [2021-07-13 18:56:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:20,211 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9418 transitions. [2021-07-13 18:56:20,212 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) [2021-07-13 18:56:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9418 transitions. [2021-07-13 18:56:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:20,216 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:20,216 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:20,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 18:56:20,216 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]=== [2021-07-13 18:56:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash -24600276, now seen corresponding path program 21 times [2021-07-13 18:56:20,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:20,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089373240] [2021-07-13 18:56:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:20,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:20,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089373240] [2021-07-13 18:56:20,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089373240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:20,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:20,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:20,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743403087] [2021-07-13 18:56:20,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:20,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:20,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:20,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:20,524 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) [2021-07-13 18:56:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:21,622 INFO L93 Difference]: Finished difference Result 4795 states and 11953 transitions. [2021-07-13 18:56:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:21,622 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 [2021-07-13 18:56:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:21,628 INFO L225 Difference]: With dead ends: 4795 [2021-07-13 18:56:21,628 INFO L226 Difference]: Without dead ends: 4795 [2021-07-13 18:56:21,628 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 926.3ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:21,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2021-07-13 18:56:21,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 3626. [2021-07-13 18:56:21,672 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) [2021-07-13 18:56:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-07-13 18:56:21,677 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-07-13 18:56:21,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:21,677 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-07-13 18:56:21,677 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) [2021-07-13 18:56:21,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-07-13 18:56:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:21,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:21,681 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:21,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 18:56:21,681 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]=== [2021-07-13 18:56:21,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:21,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1423009024, now seen corresponding path program 22 times [2021-07-13 18:56:21,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:21,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169660512] [2021-07-13 18:56:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:21,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:21,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169660512] [2021-07-13 18:56:21,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169660512] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:21,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:21,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:21,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773864680] [2021-07-13 18:56:21,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:21,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:21,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:21,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:21,965 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) [2021-07-13 18:56:23,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:23,194 INFO L93 Difference]: Finished difference Result 4735 states and 11824 transitions. [2021-07-13 18:56:23,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:23,194 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 [2021-07-13 18:56:23,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:23,199 INFO L225 Difference]: With dead ends: 4735 [2021-07-13 18:56:23,199 INFO L226 Difference]: Without dead ends: 4735 [2021-07-13 18:56:23,200 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 987.7ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:23,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-07-13 18:56:23,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3626. [2021-07-13 18:56:23,241 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) [2021-07-13 18:56:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-07-13 18:56:23,246 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-07-13 18:56:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:23,246 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-07-13 18:56:23,246 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) [2021-07-13 18:56:23,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-07-13 18:56:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:23,251 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:23,251 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:23,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 18:56:23,251 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]=== [2021-07-13 18:56:23,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:23,251 INFO L82 PathProgramCache]: Analyzing trace with hash -56487370, now seen corresponding path program 23 times [2021-07-13 18:56:23,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:23,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434488830] [2021-07-13 18:56:23,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:23,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:23,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434488830] [2021-07-13 18:56:23,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434488830] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:23,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:23,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:23,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890621722] [2021-07-13 18:56:23,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:23,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:23,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:23,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:23,552 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) [2021-07-13 18:56:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:24,469 INFO L93 Difference]: Finished difference Result 4621 states and 11441 transitions. [2021-07-13 18:56:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:24,469 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 [2021-07-13 18:56:24,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:24,476 INFO L225 Difference]: With dead ends: 4621 [2021-07-13 18:56:24,476 INFO L226 Difference]: Without dead ends: 4621 [2021-07-13 18:56:24,476 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 693.4ms TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2021-07-13 18:56:24,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3620. [2021-07-13 18:56:24,524 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) [2021-07-13 18:56:24,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-07-13 18:56:24,529 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-07-13 18:56:24,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:24,529 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-07-13 18:56:24,530 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) [2021-07-13 18:56:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-07-13 18:56:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:24,533 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:24,534 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:24,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 18:56:24,534 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]=== [2021-07-13 18:56:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1739457348, now seen corresponding path program 24 times [2021-07-13 18:56:24,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:24,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539504591] [2021-07-13 18:56:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:24,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:24,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539504591] [2021-07-13 18:56:24,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539504591] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:24,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:24,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:24,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653333016] [2021-07-13 18:56:24,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:24,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:24,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:24,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:24,856 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) [2021-07-13 18:56:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:25,862 INFO L93 Difference]: Finished difference Result 4396 states and 10944 transitions. [2021-07-13 18:56:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:25,863 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 [2021-07-13 18:56:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:25,869 INFO L225 Difference]: With dead ends: 4396 [2021-07-13 18:56:25,869 INFO L226 Difference]: Without dead ends: 4396 [2021-07-13 18:56:25,870 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 850.0ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2021-07-13 18:56:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 3620. [2021-07-13 18:56:25,921 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) [2021-07-13 18:56:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-07-13 18:56:25,927 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-07-13 18:56:25,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:25,927 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-07-13 18:56:25,927 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) [2021-07-13 18:56:25,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-07-13 18:56:25,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:25,932 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:25,932 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:25,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-13 18:56:25,932 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]=== [2021-07-13 18:56:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:25,932 INFO L82 PathProgramCache]: Analyzing trace with hash -569150224, now seen corresponding path program 25 times [2021-07-13 18:56:25,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:25,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197376323] [2021-07-13 18:56:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:26,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:26,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197376323] [2021-07-13 18:56:26,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197376323] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:26,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:26,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:26,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150601253] [2021-07-13 18:56:26,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:26,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:26,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:26,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:26,216 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) [2021-07-13 18:56:27,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:27,356 INFO L93 Difference]: Finished difference Result 4479 states and 11103 transitions. [2021-07-13 18:56:27,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:27,356 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 [2021-07-13 18:56:27,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:27,362 INFO L225 Difference]: With dead ends: 4479 [2021-07-13 18:56:27,362 INFO L226 Difference]: Without dead ends: 4479 [2021-07-13 18:56:27,363 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 971.0ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:27,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2021-07-13 18:56:27,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 3616. [2021-07-13 18:56:27,411 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) [2021-07-13 18:56:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 9398 transitions. [2021-07-13 18:56:27,417 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 9398 transitions. Word has length 105 [2021-07-13 18:56:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:27,418 INFO L482 AbstractCegarLoop]: Abstraction has 3616 states and 9398 transitions. [2021-07-13 18:56:27,418 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) [2021-07-13 18:56:27,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 9398 transitions. [2021-07-13 18:56:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:27,422 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:27,423 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:27,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-13 18:56:27,423 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]=== [2021-07-13 18:56:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:27,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1688334656, now seen corresponding path program 26 times [2021-07-13 18:56:27,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:27,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134618987] [2021-07-13 18:56:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:27,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:27,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:27,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134618987] [2021-07-13 18:56:27,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134618987] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:27,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:27,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:56:27,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644714339] [2021-07-13 18:56:27,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:56:27,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:27,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:56:27,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:56:27,615 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) [2021-07-13 18:56:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:28,131 INFO L93 Difference]: Finished difference Result 4063 states and 10283 transitions. [2021-07-13 18:56:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:56:28,131 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 [2021-07-13 18:56:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:28,137 INFO L225 Difference]: With dead ends: 4063 [2021-07-13 18:56:28,137 INFO L226 Difference]: Without dead ends: 4063 [2021-07-13 18:56:28,137 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 412.0ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:56:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-07-13 18:56:28,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 3548. [2021-07-13 18:56:28,181 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) [2021-07-13 18:56:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 9236 transitions. [2021-07-13 18:56:28,186 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 9236 transitions. Word has length 105 [2021-07-13 18:56:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:28,187 INFO L482 AbstractCegarLoop]: Abstraction has 3548 states and 9236 transitions. [2021-07-13 18:56:28,187 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) [2021-07-13 18:56:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 9236 transitions. [2021-07-13 18:56:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:28,191 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:28,191 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:28,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-13 18:56:28,191 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]=== [2021-07-13 18:56:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:28,191 INFO L82 PathProgramCache]: Analyzing trace with hash -124075606, now seen corresponding path program 27 times [2021-07-13 18:56:28,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:28,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505603476] [2021-07-13 18:56:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:28,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:28,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505603476] [2021-07-13 18:56:28,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505603476] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:28,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:28,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:28,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039468663] [2021-07-13 18:56:28,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:28,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:28,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:28,481 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) [2021-07-13 18:56:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:29,532 INFO L93 Difference]: Finished difference Result 5792 states and 14693 transitions. [2021-07-13 18:56:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:56:29,532 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 [2021-07-13 18:56:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:29,541 INFO L225 Difference]: With dead ends: 5792 [2021-07-13 18:56:29,541 INFO L226 Difference]: Without dead ends: 5792 [2021-07-13 18:56:29,542 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 884.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2021-07-13 18:56:29,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 3774. [2021-07-13 18:56:29,595 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) [2021-07-13 18:56:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 9910 transitions. [2021-07-13 18:56:29,601 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 9910 transitions. Word has length 105 [2021-07-13 18:56:29,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:29,602 INFO L482 AbstractCegarLoop]: Abstraction has 3774 states and 9910 transitions. [2021-07-13 18:56:29,602 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) [2021-07-13 18:56:29,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 9910 transitions. [2021-07-13 18:56:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:29,606 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:29,606 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:29,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-13 18:56:29,607 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]=== [2021-07-13 18:56:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:29,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1248364912, now seen corresponding path program 28 times [2021-07-13 18:56:29,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:29,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662411520] [2021-07-13 18:56:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:29,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:29,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662411520] [2021-07-13 18:56:29,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662411520] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:29,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:29,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:29,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695283846] [2021-07-13 18:56:29,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:29,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:29,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:29,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:29,862 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) [2021-07-13 18:56:31,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:31,042 INFO L93 Difference]: Finished difference Result 5338 states and 13542 transitions. [2021-07-13 18:56:31,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:31,042 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 [2021-07-13 18:56:31,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:31,050 INFO L225 Difference]: With dead ends: 5338 [2021-07-13 18:56:31,050 INFO L226 Difference]: Without dead ends: 5338 [2021-07-13 18:56:31,050 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 956.6ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2021-07-13 18:56:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 3743. [2021-07-13 18:56:31,099 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) [2021-07-13 18:56:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 9815 transitions. [2021-07-13 18:56:31,105 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 9815 transitions. Word has length 105 [2021-07-13 18:56:31,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:31,106 INFO L482 AbstractCegarLoop]: Abstraction has 3743 states and 9815 transitions. [2021-07-13 18:56:31,106 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) [2021-07-13 18:56:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 9815 transitions. [2021-07-13 18:56:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:31,110 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:31,110 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:31,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-13 18:56:31,110 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]=== [2021-07-13 18:56:31,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:31,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1347698300, now seen corresponding path program 29 times [2021-07-13 18:56:31,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:31,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168943523] [2021-07-13 18:56:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:31,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:31,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168943523] [2021-07-13 18:56:31,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168943523] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:31,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:31,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:31,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675411315] [2021-07-13 18:56:31,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:31,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:31,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:31,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:31,375 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) [2021-07-13 18:56:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:32,555 INFO L93 Difference]: Finished difference Result 5534 states and 13944 transitions. [2021-07-13 18:56:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:32,556 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 [2021-07-13 18:56:32,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:32,563 INFO L225 Difference]: With dead ends: 5534 [2021-07-13 18:56:32,564 INFO L226 Difference]: Without dead ends: 5534 [2021-07-13 18:56:32,564 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 961.6ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2021-07-13 18:56:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 3712. [2021-07-13 18:56:32,619 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) [2021-07-13 18:56:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 9720 transitions. [2021-07-13 18:56:32,625 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 9720 transitions. Word has length 105 [2021-07-13 18:56:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:32,625 INFO L482 AbstractCegarLoop]: Abstraction has 3712 states and 9720 transitions. [2021-07-13 18:56:32,625 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) [2021-07-13 18:56:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 9720 transitions. [2021-07-13 18:56:32,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:32,630 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:32,630 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:32,631 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 18:56:32,631 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]=== [2021-07-13 18:56:32,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:32,631 INFO L82 PathProgramCache]: Analyzing trace with hash 44773424, now seen corresponding path program 30 times [2021-07-13 18:56:32,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:32,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914204683] [2021-07-13 18:56:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:32,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:32,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914204683] [2021-07-13 18:56:32,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914204683] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:32,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:32,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:32,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816515853] [2021-07-13 18:56:32,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:32,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:32,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:32,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:32,938 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) [2021-07-13 18:56:33,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:33,801 INFO L93 Difference]: Finished difference Result 4556 states and 11438 transitions. [2021-07-13 18:56:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:33,801 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 [2021-07-13 18:56:33,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:33,808 INFO L225 Difference]: With dead ends: 4556 [2021-07-13 18:56:33,808 INFO L226 Difference]: Without dead ends: 4556 [2021-07-13 18:56:33,809 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 732.0ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:33,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2021-07-13 18:56:33,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 3742. [2021-07-13 18:56:33,866 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) [2021-07-13 18:56:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-07-13 18:56:33,872 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-07-13 18:56:33,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:33,872 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-07-13 18:56:33,872 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) [2021-07-13 18:56:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-07-13 18:56:33,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:33,876 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:33,876 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:33,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-13 18:56:33,877 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]=== [2021-07-13 18:56:33,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:33,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2032954612, now seen corresponding path program 31 times [2021-07-13 18:56:33,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:33,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742863298] [2021-07-13 18:56:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:34,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:34,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742863298] [2021-07-13 18:56:34,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742863298] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:34,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:34,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:34,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923917166] [2021-07-13 18:56:34,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:34,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:34,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:34,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:34,149 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) [2021-07-13 18:56:35,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:35,194 INFO L93 Difference]: Finished difference Result 7647 states and 19247 transitions. [2021-07-13 18:56:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:56:35,195 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 [2021-07-13 18:56:35,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:35,206 INFO L225 Difference]: With dead ends: 7647 [2021-07-13 18:56:35,206 INFO L226 Difference]: Without dead ends: 7647 [2021-07-13 18:56:35,207 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 920.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:35,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2021-07-13 18:56:35,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 3814. [2021-07-13 18:56:35,270 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) [2021-07-13 18:56:35,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 10011 transitions. [2021-07-13 18:56:35,276 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 10011 transitions. Word has length 105 [2021-07-13 18:56:35,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:35,276 INFO L482 AbstractCegarLoop]: Abstraction has 3814 states and 10011 transitions. [2021-07-13 18:56:35,276 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) [2021-07-13 18:56:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 10011 transitions. [2021-07-13 18:56:35,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:35,281 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:35,281 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:35,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-13 18:56:35,281 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]=== [2021-07-13 18:56:35,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:35,281 INFO L82 PathProgramCache]: Analyzing trace with hash -889572166, now seen corresponding path program 32 times [2021-07-13 18:56:35,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:35,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292854189] [2021-07-13 18:56:35,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:35,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:35,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292854189] [2021-07-13 18:56:35,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292854189] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:35,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:35,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:35,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607580662] [2021-07-13 18:56:35,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:35,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:35,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:35,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:35,568 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) [2021-07-13 18:56:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:36,838 INFO L93 Difference]: Finished difference Result 7193 states and 18096 transitions. [2021-07-13 18:56:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:36,838 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 [2021-07-13 18:56:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:36,848 INFO L225 Difference]: With dead ends: 7193 [2021-07-13 18:56:36,849 INFO L226 Difference]: Without dead ends: 7193 [2021-07-13 18:56:36,849 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 990.4ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2021-07-13 18:56:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 3742. [2021-07-13 18:56:36,910 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) [2021-07-13 18:56:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-07-13 18:56:36,915 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-07-13 18:56:36,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:36,916 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-07-13 18:56:36,916 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) [2021-07-13 18:56:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-07-13 18:56:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:36,920 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:36,920 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:36,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-13 18:56:36,920 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]=== [2021-07-13 18:56:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:36,921 INFO L82 PathProgramCache]: Analyzing trace with hash 809331918, now seen corresponding path program 33 times [2021-07-13 18:56:36,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:36,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730064289] [2021-07-13 18:56:36,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:37,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:37,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730064289] [2021-07-13 18:56:37,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730064289] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:37,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:37,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:37,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4852592] [2021-07-13 18:56:37,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:37,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:37,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:37,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:37,179 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) [2021-07-13 18:56:38,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:38,442 INFO L93 Difference]: Finished difference Result 6538 states and 16410 transitions. [2021-07-13 18:56:38,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:38,443 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 [2021-07-13 18:56:38,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:38,453 INFO L225 Difference]: With dead ends: 6538 [2021-07-13 18:56:38,453 INFO L226 Difference]: Without dead ends: 6538 [2021-07-13 18:56:38,454 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 972.9ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:38,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6538 states. [2021-07-13 18:56:38,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6538 to 3669. [2021-07-13 18:56:38,510 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) [2021-07-13 18:56:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 9576 transitions. [2021-07-13 18:56:38,516 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 9576 transitions. Word has length 105 [2021-07-13 18:56:38,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:38,516 INFO L482 AbstractCegarLoop]: Abstraction has 3669 states and 9576 transitions. [2021-07-13 18:56:38,516 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) [2021-07-13 18:56:38,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 9576 transitions. [2021-07-13 18:56:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:38,520 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:38,520 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:38,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-13 18:56:38,521 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]=== [2021-07-13 18:56:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1616088008, now seen corresponding path program 34 times [2021-07-13 18:56:38,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:38,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233189141] [2021-07-13 18:56:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:38,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:38,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233189141] [2021-07-13 18:56:38,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233189141] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:38,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:38,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:38,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487358590] [2021-07-13 18:56:38,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:38,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:38,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:38,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:38,783 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) [2021-07-13 18:56:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:40,429 INFO L93 Difference]: Finished difference Result 6413 states and 15962 transitions. [2021-07-13 18:56:40,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:56:40,430 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 [2021-07-13 18:56:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:40,439 INFO L225 Difference]: With dead ends: 6413 [2021-07-13 18:56:40,439 INFO L226 Difference]: Without dead ends: 6413 [2021-07-13 18:56:40,440 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1325.1ms TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:56:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2021-07-13 18:56:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 2966. [2021-07-13 18:56:40,490 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) [2021-07-13 18:56:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 7718 transitions. [2021-07-13 18:56:40,494 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 7718 transitions. Word has length 105 [2021-07-13 18:56:40,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:40,494 INFO L482 AbstractCegarLoop]: Abstraction has 2966 states and 7718 transitions. [2021-07-13 18:56:40,494 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) [2021-07-13 18:56:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 7718 transitions. [2021-07-13 18:56:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:40,498 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:40,498 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:40,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-13 18:56:40,498 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]=== [2021-07-13 18:56:40,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:40,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1306438770, now seen corresponding path program 35 times [2021-07-13 18:56:40,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:40,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658774018] [2021-07-13 18:56:40,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:40,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:40,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658774018] [2021-07-13 18:56:40,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658774018] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:40,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:40,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:40,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404755394] [2021-07-13 18:56:40,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:40,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:40,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:40,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:40,782 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) [2021-07-13 18:56:42,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:42,482 INFO L93 Difference]: Finished difference Result 5916 states and 14711 transitions. [2021-07-13 18:56:42,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:56:42,483 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 [2021-07-13 18:56:42,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:42,491 INFO L225 Difference]: With dead ends: 5916 [2021-07-13 18:56:42,492 INFO L226 Difference]: Without dead ends: 5916 [2021-07-13 18:56:42,492 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1418.8ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:56:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5916 states. [2021-07-13 18:56:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5916 to 2891. [2021-07-13 18:56:42,543 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) [2021-07-13 18:56:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 7493 transitions. [2021-07-13 18:56:42,547 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 7493 transitions. Word has length 105 [2021-07-13 18:56:42,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:42,547 INFO L482 AbstractCegarLoop]: Abstraction has 2891 states and 7493 transitions. [2021-07-13 18:56:42,547 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) [2021-07-13 18:56:42,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 7493 transitions. [2021-07-13 18:56:42,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:42,550 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:42,550 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:42,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-13 18:56:42,551 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]=== [2021-07-13 18:56:42,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:42,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1156993954, now seen corresponding path program 36 times [2021-07-13 18:56:42,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:42,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721036637] [2021-07-13 18:56:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:42,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:42,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721036637] [2021-07-13 18:56:42,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721036637] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:42,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:42,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:42,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85443082] [2021-07-13 18:56:42,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:42,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:42,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:42,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:42,831 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) [2021-07-13 18:56:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:44,197 INFO L93 Difference]: Finished difference Result 4866 states and 12039 transitions. [2021-07-13 18:56:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:44,198 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 [2021-07-13 18:56:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:44,205 INFO L225 Difference]: With dead ends: 4866 [2021-07-13 18:56:44,205 INFO L226 Difference]: Without dead ends: 4866 [2021-07-13 18:56:44,205 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1048.9ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:44,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2021-07-13 18:56:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 2880. [2021-07-13 18:56:44,252 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) [2021-07-13 18:56:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 7460 transitions. [2021-07-13 18:56:44,256 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 7460 transitions. Word has length 105 [2021-07-13 18:56:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:44,256 INFO L482 AbstractCegarLoop]: Abstraction has 2880 states and 7460 transitions. [2021-07-13 18:56:44,256 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) [2021-07-13 18:56:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 7460 transitions. [2021-07-13 18:56:44,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:44,259 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:44,259 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:44,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-13 18:56:44,259 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]=== [2021-07-13 18:56:44,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:44,260 INFO L82 PathProgramCache]: Analyzing trace with hash -133664966, now seen corresponding path program 37 times [2021-07-13 18:56:44,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:44,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737594700] [2021-07-13 18:56:44,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:44,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:44,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:44,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737594700] [2021-07-13 18:56:44,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737594700] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:44,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:44,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:44,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043396418] [2021-07-13 18:56:44,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:44,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:44,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:44,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:44,522 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) [2021-07-13 18:56:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:45,626 INFO L93 Difference]: Finished difference Result 4695 states and 11568 transitions. [2021-07-13 18:56:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:45,627 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 [2021-07-13 18:56:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:45,633 INFO L225 Difference]: With dead ends: 4695 [2021-07-13 18:56:45,633 INFO L226 Difference]: Without dead ends: 4695 [2021-07-13 18:56:45,634 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 887.8ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:45,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2021-07-13 18:56:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 2883. [2021-07-13 18:56:45,677 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) [2021-07-13 18:56:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 7468 transitions. [2021-07-13 18:56:45,681 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 7468 transitions. Word has length 105 [2021-07-13 18:56:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:45,682 INFO L482 AbstractCegarLoop]: Abstraction has 2883 states and 7468 transitions. [2021-07-13 18:56:45,682 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) [2021-07-13 18:56:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 7468 transitions. [2021-07-13 18:56:45,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:45,685 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:45,685 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:45,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-13 18:56:45,685 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]=== [2021-07-13 18:56:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:45,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1313944334, now seen corresponding path program 38 times [2021-07-13 18:56:45,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:45,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543535452] [2021-07-13 18:56:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:45,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:45,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543535452] [2021-07-13 18:56:45,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543535452] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:45,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:45,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:45,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608092546] [2021-07-13 18:56:45,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:45,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:45,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:45,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:45,953 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) [2021-07-13 18:56:47,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:47,171 INFO L93 Difference]: Finished difference Result 4584 states and 11319 transitions. [2021-07-13 18:56:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:47,178 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 [2021-07-13 18:56:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:47,183 INFO L225 Difference]: With dead ends: 4584 [2021-07-13 18:56:47,184 INFO L226 Difference]: Without dead ends: 4584 [2021-07-13 18:56:47,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 976.0ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-07-13 18:56:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 2869. [2021-07-13 18:56:47,222 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) [2021-07-13 18:56:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 7427 transitions. [2021-07-13 18:56:47,226 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 7427 transitions. Word has length 105 [2021-07-13 18:56:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:47,227 INFO L482 AbstractCegarLoop]: Abstraction has 2869 states and 7427 transitions. [2021-07-13 18:56:47,227 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) [2021-07-13 18:56:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 7427 transitions. [2021-07-13 18:56:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:47,230 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:47,230 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:47,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-13 18:56:47,230 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]=== [2021-07-13 18:56:47,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:47,230 INFO L82 PathProgramCache]: Analyzing trace with hash 876641092, now seen corresponding path program 39 times [2021-07-13 18:56:47,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:47,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016279105] [2021-07-13 18:56:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:47,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:47,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016279105] [2021-07-13 18:56:47,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016279105] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:47,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:47,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:47,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266518161] [2021-07-13 18:56:47,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:47,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:47,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:47,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:47,520 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) [2021-07-13 18:56:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:48,399 INFO L93 Difference]: Finished difference Result 3786 states and 9295 transitions. [2021-07-13 18:56:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:48,400 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 [2021-07-13 18:56:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:48,405 INFO L225 Difference]: With dead ends: 3786 [2021-07-13 18:56:48,405 INFO L226 Difference]: Without dead ends: 3786 [2021-07-13 18:56:48,406 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 716.9ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2021-07-13 18:56:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 2848. [2021-07-13 18:56:48,444 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) [2021-07-13 18:56:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 7373 transitions. [2021-07-13 18:56:48,448 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 7373 transitions. Word has length 105 [2021-07-13 18:56:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:48,448 INFO L482 AbstractCegarLoop]: Abstraction has 2848 states and 7373 transitions. [2021-07-13 18:56:48,449 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) [2021-07-13 18:56:48,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 7373 transitions. [2021-07-13 18:56:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:48,452 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:48,452 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:48,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-13 18:56:48,453 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]=== [2021-07-13 18:56:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:48,455 INFO L82 PathProgramCache]: Analyzing trace with hash -2097647346, now seen corresponding path program 40 times [2021-07-13 18:56:48,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:48,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381045103] [2021-07-13 18:56:48,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:48,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:48,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381045103] [2021-07-13 18:56:48,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381045103] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:48,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:48,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:48,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147945285] [2021-07-13 18:56:48,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:48,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:48,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:48,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:48,935 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) [2021-07-13 18:56:49,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:49,881 INFO L93 Difference]: Finished difference Result 3813 states and 9309 transitions. [2021-07-13 18:56:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:49,881 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 [2021-07-13 18:56:49,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:49,886 INFO L225 Difference]: With dead ends: 3813 [2021-07-13 18:56:49,887 INFO L226 Difference]: Without dead ends: 3813 [2021-07-13 18:56:49,887 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 811.9ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3813 states. [2021-07-13 18:56:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3813 to 2841. [2021-07-13 18:56:49,924 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) [2021-07-13 18:56:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 7355 transitions. [2021-07-13 18:56:49,928 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 7355 transitions. Word has length 105 [2021-07-13 18:56:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:49,928 INFO L482 AbstractCegarLoop]: Abstraction has 2841 states and 7355 transitions. [2021-07-13 18:56:49,928 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) [2021-07-13 18:56:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 7355 transitions. [2021-07-13 18:56:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:49,931 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:49,931 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:49,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-13 18:56:49,931 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]=== [2021-07-13 18:56:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash -650038046, now seen corresponding path program 41 times [2021-07-13 18:56:49,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:49,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932034777] [2021-07-13 18:56:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:50,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:50,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:50,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932034777] [2021-07-13 18:56:50,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932034777] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:50,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:50,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:50,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812588931] [2021-07-13 18:56:50,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:50,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:50,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:50,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:50,214 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) [2021-07-13 18:56:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:51,181 INFO L93 Difference]: Finished difference Result 3580 states and 8823 transitions. [2021-07-13 18:56:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:51,181 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 [2021-07-13 18:56:51,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:51,186 INFO L225 Difference]: With dead ends: 3580 [2021-07-13 18:56:51,186 INFO L226 Difference]: Without dead ends: 3580 [2021-07-13 18:56:51,186 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 803.8ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:51,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-07-13 18:56:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2723. [2021-07-13 18:56:51,213 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) [2021-07-13 18:56:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 7091 transitions. [2021-07-13 18:56:51,216 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 7091 transitions. Word has length 105 [2021-07-13 18:56:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:51,216 INFO L482 AbstractCegarLoop]: Abstraction has 2723 states and 7091 transitions. [2021-07-13 18:56:51,217 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) [2021-07-13 18:56:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 7091 transitions. [2021-07-13 18:56:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:51,219 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:51,219 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:51,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-13 18:56:51,219 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]=== [2021-07-13 18:56:51,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:51,220 INFO L82 PathProgramCache]: Analyzing trace with hash 262787042, now seen corresponding path program 42 times [2021-07-13 18:56:51,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:51,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962352179] [2021-07-13 18:56:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:51,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:51,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962352179] [2021-07-13 18:56:51,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962352179] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:51,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:51,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:51,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930500913] [2021-07-13 18:56:51,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:51,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:51,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:51,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:51,466 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) [2021-07-13 18:56:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:52,374 INFO L93 Difference]: Finished difference Result 3197 states and 8060 transitions. [2021-07-13 18:56:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:52,374 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 [2021-07-13 18:56:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:52,379 INFO L225 Difference]: With dead ends: 3197 [2021-07-13 18:56:52,379 INFO L226 Difference]: Without dead ends: 3197 [2021-07-13 18:56:52,379 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 651.7ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:52,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-07-13 18:56:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2705. [2021-07-13 18:56:52,405 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) [2021-07-13 18:56:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 7046 transitions. [2021-07-13 18:56:52,408 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 7046 transitions. Word has length 105 [2021-07-13 18:56:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:52,408 INFO L482 AbstractCegarLoop]: Abstraction has 2705 states and 7046 transitions. [2021-07-13 18:56:52,408 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) [2021-07-13 18:56:52,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 7046 transitions. [2021-07-13 18:56:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:52,411 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:52,411 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:52,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-13 18:56:52,411 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]=== [2021-07-13 18:56:52,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:52,411 INFO L82 PathProgramCache]: Analyzing trace with hash 2058731760, now seen corresponding path program 43 times [2021-07-13 18:56:52,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:52,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718717878] [2021-07-13 18:56:52,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:52,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:52,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718717878] [2021-07-13 18:56:52,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718717878] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:52,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:52,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:52,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494140913] [2021-07-13 18:56:52,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:52,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:52,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:52,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:52,690 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) [2021-07-13 18:56:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:53,579 INFO L93 Difference]: Finished difference Result 3419 states and 8516 transitions. [2021-07-13 18:56:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:53,579 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 [2021-07-13 18:56:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:53,584 INFO L225 Difference]: With dead ends: 3419 [2021-07-13 18:56:53,584 INFO L226 Difference]: Without dead ends: 3419 [2021-07-13 18:56:53,584 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 682.0ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:53,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-07-13 18:56:53,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2707. [2021-07-13 18:56:53,613 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) [2021-07-13 18:56:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 7051 transitions. [2021-07-13 18:56:53,616 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 7051 transitions. Word has length 105 [2021-07-13 18:56:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:53,617 INFO L482 AbstractCegarLoop]: Abstraction has 2707 states and 7051 transitions. [2021-07-13 18:56:53,617 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) [2021-07-13 18:56:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 7051 transitions. [2021-07-13 18:56:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:53,619 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:53,619 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:53,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-13 18:56:53,619 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]=== [2021-07-13 18:56:53,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:53,620 INFO L82 PathProgramCache]: Analyzing trace with hash -249875812, now seen corresponding path program 44 times [2021-07-13 18:56:53,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:53,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903904728] [2021-07-13 18:56:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:53,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:53,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:53,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903904728] [2021-07-13 18:56:53,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903904728] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:53,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:53,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:53,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970230614] [2021-07-13 18:56:53,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:53,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:53,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:53,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:53,897 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) [2021-07-13 18:56:54,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:54,974 INFO L93 Difference]: Finished difference Result 3502 states and 8675 transitions. [2021-07-13 18:56:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:54,974 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 [2021-07-13 18:56:54,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:54,979 INFO L225 Difference]: With dead ends: 3502 [2021-07-13 18:56:54,979 INFO L226 Difference]: Without dead ends: 3502 [2021-07-13 18:56:54,979 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 779.7ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:54,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-07-13 18:56:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2699. [2021-07-13 18:56:55,010 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) [2021-07-13 18:56:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 7031 transitions. [2021-07-13 18:56:55,014 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 7031 transitions. Word has length 105 [2021-07-13 18:56:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:55,014 INFO L482 AbstractCegarLoop]: Abstraction has 2699 states and 7031 transitions. [2021-07-13 18:56:55,014 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) [2021-07-13 18:56:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 7031 transitions. [2021-07-13 18:56:55,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:55,017 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:55,017 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:55,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-13 18:56:55,017 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]=== [2021-07-13 18:56:55,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:55,018 INFO L82 PathProgramCache]: Analyzing trace with hash -631228918, now seen corresponding path program 45 times [2021-07-13 18:56:55,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:55,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495888345] [2021-07-13 18:56:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:55,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:55,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495888345] [2021-07-13 18:56:55,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495888345] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:55,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:55,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:55,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75328314] [2021-07-13 18:56:55,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:55,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:55,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:55,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:55,299 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) [2021-07-13 18:56:56,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:56,101 INFO L93 Difference]: Finished difference Result 3084 states and 7796 transitions. [2021-07-13 18:56:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:56,101 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 [2021-07-13 18:56:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:56,106 INFO L225 Difference]: With dead ends: 3084 [2021-07-13 18:56:56,106 INFO L226 Difference]: Without dead ends: 3084 [2021-07-13 18:56:56,106 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 636.8ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-07-13 18:56:56,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2681. [2021-07-13 18:56:56,134 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) [2021-07-13 18:56:56,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6986 transitions. [2021-07-13 18:56:56,137 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6986 transitions. Word has length 105 [2021-07-13 18:56:56,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:56,137 INFO L482 AbstractCegarLoop]: Abstraction has 2681 states and 6986 transitions. [2021-07-13 18:56:56,137 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) [2021-07-13 18:56:56,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6986 transitions. [2021-07-13 18:56:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:56,140 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:56,140 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:56,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-13 18:56:56,140 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]=== [2021-07-13 18:56:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:56,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1766678272, now seen corresponding path program 46 times [2021-07-13 18:56:56,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:56,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234435477] [2021-07-13 18:56:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:56,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:56,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234435477] [2021-07-13 18:56:56,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234435477] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:56,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:56,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:56,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992074270] [2021-07-13 18:56:56,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:56,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:56,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:56,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:56,421 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) [2021-07-13 18:56:57,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:57,333 INFO L93 Difference]: Finished difference Result 3297 states and 8221 transitions. [2021-07-13 18:56:57,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:57,334 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 [2021-07-13 18:56:57,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:57,339 INFO L225 Difference]: With dead ends: 3297 [2021-07-13 18:56:57,339 INFO L226 Difference]: Without dead ends: 3297 [2021-07-13 18:56:57,339 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 666.1ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:57,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-07-13 18:56:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2675. [2021-07-13 18:56:57,368 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) [2021-07-13 18:56:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 6971 transitions. [2021-07-13 18:56:57,372 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 6971 transitions. Word has length 105 [2021-07-13 18:56:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:57,372 INFO L482 AbstractCegarLoop]: Abstraction has 2675 states and 6971 transitions. [2021-07-13 18:56:57,372 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) [2021-07-13 18:56:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 6971 transitions. [2021-07-13 18:56:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-07-13 18:56:57,375 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:57,375 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:57,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-13 18:56:57,375 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]=== [2021-07-13 18:56:57,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:57,376 INFO L82 PathProgramCache]: Analyzing trace with hash -541929300, now seen corresponding path program 47 times [2021-07-13 18:56:57,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:57,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720712313] [2021-07-13 18:56:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:57,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:57,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720712313] [2021-07-13 18:56:57,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720712313] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:57,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:57,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:57,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27574775] [2021-07-13 18:56:57,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:57,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:57,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:57,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:57,644 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) [2021-07-13 18:56:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:58,582 INFO L93 Difference]: Finished difference Result 3154 states and 7933 transitions. [2021-07-13 18:56:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:58,583 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 [2021-07-13 18:56:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:58,587 INFO L225 Difference]: With dead ends: 3154 [2021-07-13 18:56:58,588 INFO L226 Difference]: Without dead ends: 3154 [2021-07-13 18:56:58,588 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 744.3ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2021-07-13 18:56:58,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 2564. [2021-07-13 18:56:58,613 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) [2021-07-13 18:56:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6748 transitions. [2021-07-13 18:56:58,616 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6748 transitions. Word has length 105 [2021-07-13 18:56:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:58,616 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6748 transitions. [2021-07-13 18:56:58,616 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) [2021-07-13 18:56:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6748 transitions. [2021-07-13 18:56:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-13 18:56:58,618 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:58,618 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:58,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-13 18:56:58,619 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]=== [2021-07-13 18:56:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:58,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1880123667, now seen corresponding path program 1 times [2021-07-13 18:56:58,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:58,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39847752] [2021-07-13 18:56:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:59,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:59,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39847752] [2021-07-13 18:56:59,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39847752] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:59,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:59,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:56:59,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671521115] [2021-07-13 18:56:59,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:56:59,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:59,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:56:59,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:56:59,222 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) [2021-07-13 18:57:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:01,481 INFO L93 Difference]: Finished difference Result 3806 states and 9659 transitions. [2021-07-13 18:57:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:57:01,481 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 [2021-07-13 18:57:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:01,487 INFO L225 Difference]: With dead ends: 3806 [2021-07-13 18:57:01,487 INFO L226 Difference]: Without dead ends: 3649 [2021-07-13 18:57:01,487 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1980.1ms TimeCoverageRelationStatistics Valid=433, Invalid=2017, Unknown=0, NotChecked=0, Total=2450 [2021-07-13 18:57:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2021-07-13 18:57:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 2708. [2021-07-13 18:57:01,523 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) [2021-07-13 18:57:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 7096 transitions. [2021-07-13 18:57:01,527 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 7096 transitions. Word has length 111 [2021-07-13 18:57:01,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:01,527 INFO L482 AbstractCegarLoop]: Abstraction has 2708 states and 7096 transitions. [2021-07-13 18:57:01,527 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) [2021-07-13 18:57:01,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 7096 transitions. [2021-07-13 18:57:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-13 18:57:01,530 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:01,530 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:01,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-13 18:57:01,530 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]=== [2021-07-13 18:57:01,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:01,530 INFO L82 PathProgramCache]: Analyzing trace with hash -297239833, now seen corresponding path program 2 times [2021-07-13 18:57:01,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:01,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189625429] [2021-07-13 18:57:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:02,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:02,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189625429] [2021-07-13 18:57:02,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189625429] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:02,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:02,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:57:02,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614135749] [2021-07-13 18:57:02,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:57:02,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:02,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:57:02,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:57:02,117 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) [2021-07-13 18:57:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:04,587 INFO L93 Difference]: Finished difference Result 3704 states and 9384 transitions. [2021-07-13 18:57:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 18:57:04,587 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 [2021-07-13 18:57:04,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:04,593 INFO L225 Difference]: With dead ends: 3704 [2021-07-13 18:57:04,593 INFO L226 Difference]: Without dead ends: 3613 [2021-07-13 18:57:04,593 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2210.6ms TimeCoverageRelationStatistics Valid=450, Invalid=2100, Unknown=0, NotChecked=0, Total=2550 [2021-07-13 18:57:04,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2021-07-13 18:57:04,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 2672. [2021-07-13 18:57:04,625 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) [2021-07-13 18:57:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 7000 transitions. [2021-07-13 18:57:04,629 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 7000 transitions. Word has length 111 [2021-07-13 18:57:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:04,629 INFO L482 AbstractCegarLoop]: Abstraction has 2672 states and 7000 transitions. [2021-07-13 18:57:04,629 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) [2021-07-13 18:57:04,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 7000 transitions. [2021-07-13 18:57:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-13 18:57:04,632 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:04,632 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:04,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-13 18:57:04,632 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]=== [2021-07-13 18:57:04,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:04,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2097400173, now seen corresponding path program 3 times [2021-07-13 18:57:04,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:04,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013675295] [2021-07-13 18:57:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:05,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:05,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013675295] [2021-07-13 18:57:05,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013675295] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:05,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:05,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:57:05,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167477242] [2021-07-13 18:57:05,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:57:05,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:05,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:57:05,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:57:05,202 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) [2021-07-13 18:57:06,845 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2021-07-13 18:57:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:07,458 INFO L93 Difference]: Finished difference Result 3643 states and 9251 transitions. [2021-07-13 18:57:07,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:57:07,458 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 [2021-07-13 18:57:07,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:07,464 INFO L225 Difference]: With dead ends: 3643 [2021-07-13 18:57:07,464 INFO L226 Difference]: Without dead ends: 3504 [2021-07-13 18:57:07,465 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1996.4ms TimeCoverageRelationStatistics Valid=402, Invalid=1950, Unknown=0, NotChecked=0, Total=2352 [2021-07-13 18:57:07,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2021-07-13 18:57:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2600. [2021-07-13 18:57:07,495 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) [2021-07-13 18:57:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 6808 transitions. [2021-07-13 18:57:07,498 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 6808 transitions. Word has length 111 [2021-07-13 18:57:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:07,498 INFO L482 AbstractCegarLoop]: Abstraction has 2600 states and 6808 transitions. [2021-07-13 18:57:07,498 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) [2021-07-13 18:57:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 6808 transitions. [2021-07-13 18:57:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-13 18:57:07,500 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:07,501 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:07,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-13 18:57:07,501 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]=== [2021-07-13 18:57:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1240236717, now seen corresponding path program 4 times [2021-07-13 18:57:07,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:07,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322897785] [2021-07-13 18:57:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:08,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:08,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322897785] [2021-07-13 18:57:08,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322897785] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:08,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:08,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:57:08,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123951251] [2021-07-13 18:57:08,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:57:08,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:08,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:57:08,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:57:08,081 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) [2021-07-13 18:57:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:10,298 INFO L93 Difference]: Finished difference Result 3577 states and 9072 transitions. [2021-07-13 18:57:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:57:10,299 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 [2021-07-13 18:57:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:10,303 INFO L225 Difference]: With dead ends: 3577 [2021-07-13 18:57:10,304 INFO L226 Difference]: Without dead ends: 3468 [2021-07-13 18:57:10,304 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1908.5ms TimeCoverageRelationStatistics Valid=405, Invalid=1947, Unknown=0, NotChecked=0, Total=2352 [2021-07-13 18:57:10,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2021-07-13 18:57:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 2564. [2021-07-13 18:57:10,330 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) [2021-07-13 18:57:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6712 transitions. [2021-07-13 18:57:10,333 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6712 transitions. Word has length 111 [2021-07-13 18:57:10,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:10,333 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6712 transitions. [2021-07-13 18:57:10,334 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) [2021-07-13 18:57:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6712 transitions. [2021-07-13 18:57:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-13 18:57:10,336 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:10,336 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:10,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-13 18:57:10,336 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]=== [2021-07-13 18:57:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:10,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2138132879, now seen corresponding path program 5 times [2021-07-13 18:57:10,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:10,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067005560] [2021-07-13 18:57:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:10,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:10,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067005560] [2021-07-13 18:57:10,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067005560] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:10,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:10,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:10,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837329449] [2021-07-13 18:57:10,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:10,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:10,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:10,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:10,950 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) [2021-07-13 18:57:13,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:13,273 INFO L93 Difference]: Finished difference Result 3671 states and 9215 transitions. [2021-07-13 18:57:13,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 18:57:13,274 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 [2021-07-13 18:57:13,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:13,280 INFO L225 Difference]: With dead ends: 3671 [2021-07-13 18:57:13,280 INFO L226 Difference]: Without dead ends: 3472 [2021-07-13 18:57:13,280 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2067.9ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 18:57:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2021-07-13 18:57:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 2456. [2021-07-13 18:57:13,315 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) [2021-07-13 18:57:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 6424 transitions. [2021-07-13 18:57:13,319 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 6424 transitions. Word has length 111 [2021-07-13 18:57:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:13,319 INFO L482 AbstractCegarLoop]: Abstraction has 2456 states and 6424 transitions. [2021-07-13 18:57:13,319 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) [2021-07-13 18:57:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 6424 transitions. [2021-07-13 18:57:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-07-13 18:57:13,322 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:13,322 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:13,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-13 18:57:13,322 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1566479499, now seen corresponding path program 6 times [2021-07-13 18:57:13,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:13,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695031159] [2021-07-13 18:57:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:57:13,341 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:57:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:57:13,361 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:57:13,393 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 18:57:13,393 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 18:57:13,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-13 18:57:13,395 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:57:13,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:57:13 BasicIcfg [2021-07-13 18:57:13,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:57:13,473 INFO L168 Benchmark]: Toolchain (without parser) took 93302.49 ms. Allocated memory was 205.5 MB in the beginning and 973.1 MB in the end (delta: 767.6 MB). Free memory was 167.1 MB in the beginning and 486.6 MB in the end (delta: -319.5 MB). Peak memory consumption was 447.7 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:13,473 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 205.5 MB. Free memory is still 186.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:57:13,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.96 ms. Allocated memory is still 205.5 MB. Free memory was 166.7 MB in the beginning and 146.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:13,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.20 ms. Allocated memory is still 205.5 MB. Free memory was 146.7 MB in the beginning and 143.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:13,474 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 205.5 MB. Free memory was 143.6 MB in the beginning and 140.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:13,474 INFO L168 Benchmark]: RCFGBuilder took 508.52 ms. Allocated memory is still 205.5 MB. Free memory was 140.9 MB in the beginning and 92.2 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:13,474 INFO L168 Benchmark]: TraceAbstraction took 91990.09 ms. Allocated memory was 205.5 MB in the beginning and 973.1 MB in the end (delta: 767.6 MB). Free memory was 91.7 MB in the beginning and 486.6 MB in the end (delta: -395.0 MB). Peak memory consumption was 372.6 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:13,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 205.5 MB. Free memory is still 186.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 725.96 ms. Allocated memory is still 205.5 MB. Free memory was 166.7 MB in the beginning and 146.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.20 ms. Allocated memory is still 205.5 MB. Free memory was 146.7 MB in the beginning and 143.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 205.5 MB. Free memory was 143.6 MB in the beginning and 140.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 508.52 ms. Allocated memory is still 205.5 MB. Free memory was 140.9 MB in the beginning and 92.2 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 91990.09 ms. Allocated memory was 205.5 MB in the beginning and 973.1 MB in the end (delta: 767.6 MB). Free memory was 91.7 MB in the beginning and 486.6 MB in the end (delta: -395.0 MB). Peak memory consumption was 372.6 MB. Max. memory is 8.0 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: 91798.5ms, OverallIterations: 59, TraceHistogramMax: 1, EmptinessCheckTime: 256.3ms, AutomataDifference: 69304.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 141.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11238 SDtfs, 33941 SDslu, 77919 SDs, 0 SdLazy, 37836 SolverSat, 2956 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18094.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2118 GetRequests, 187 SyntacticMatches, 64 SemanticMatches, 1867 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10414 ImplicationChecksByTransitivity, 55644.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4325occurred in iteration=4, InterpolantAutomatonStates: 1238, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3272.4ms AutomataMinimizationTime, 58 MinimizatonAttempts, 74163 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 107.3ms SsaConstructionTime, 844.4ms SatisfiabilityAnalysisTime, 17151.7ms InterpolantComputationTime, 5988 NumberOfCodeBlocks, 5988 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 5819 ConstructedInterpolants, 0 QuantifiedInterpolants, 79855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 58 InterpolantComputations, 58 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...