/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:29:55,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:29:55,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:29:56,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:29:56,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:29:56,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:29:56,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:29:56,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:29:56,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:29:56,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:29:56,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:29:56,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:29:56,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:29:56,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:29:56,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:29:56,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:29:56,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:29:56,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:29:56,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:29:56,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:29:56,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:29:56,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:29:56,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:29:56,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:29:56,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:29:56,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:29:56,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:29:56,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:29:56,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:29:56,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:29:56,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:29:56,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:29:56,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:29:56,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:29:56,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:29:56,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:29:56,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:29:56,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:29:56,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:29:56,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:29:56,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:29:56,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:29:56,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:29:56,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:29:56,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:29:56,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:29:56,168 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:29:56,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:29:56,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:29:56,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:29:56,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:29:56,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:29:56,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:29:56,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:29:56,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:29:56,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:29:56,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:29:56,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:29:56,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:29:56,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:29:56,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:29:56,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:29:56,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:29:56,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:29:56,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:29:56,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:29:56,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:29:56,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:29:56,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:29:56,174 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:29:56,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:29:56,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:29:56,175 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:29:56,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:29:56,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:29:56,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:29:56,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:29:56,627 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:29:56,628 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2020-10-16 12:29:56,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b3d7b5b6/b42565a406f34127bccd890723ce4a27/FLAG19a45afc3 [2020-10-16 12:29:57,567 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:29:57,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/singleton.i [2020-10-16 12:29:57,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b3d7b5b6/b42565a406f34127bccd890723ce4a27/FLAG19a45afc3 [2020-10-16 12:29:57,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b3d7b5b6/b42565a406f34127bccd890723ce4a27 [2020-10-16 12:29:57,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:29:57,720 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:29:57,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:29:57,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:29:57,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:29:57,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:29:57" (1/1) ... [2020-10-16 12:29:57,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681be2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:57, skipping insertion in model container [2020-10-16 12:29:57,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:29:57" (1/1) ... [2020-10-16 12:29:57,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:29:57,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:29:58,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:29:58,496 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:29:58,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:29:58,758 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:29:58,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58 WrapperNode [2020-10-16 12:29:58,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:29:58,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:29:58,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:29:58,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:29:58,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:29:58,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:29:58,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:29:58,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:29:58,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... [2020-10-16 12:29:58,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:29:58,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:29:58,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:29:58,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:29:58,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:29:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:29:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:29:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:29:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2020-10-16 12:29:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2020-10-16 12:29:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 12:29:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 12:29:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 12:29:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 12:29:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-16 12:29:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-16 12:29:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:29:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-16 12:29:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:29:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:29:58,989 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:29:59,449 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:29:59,450 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 12:29:59,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:29:59 BoogieIcfgContainer [2020-10-16 12:29:59,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:29:59,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:29:59,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:29:59,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:29:59,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:29:57" (1/3) ... [2020-10-16 12:29:59,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf440d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:29:59, skipping insertion in model container [2020-10-16 12:29:59,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:29:58" (2/3) ... [2020-10-16 12:29:59,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf440d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:29:59, skipping insertion in model container [2020-10-16 12:29:59,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:29:59" (3/3) ... [2020-10-16 12:29:59,462 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2020-10-16 12:29:59,476 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:29:59,476 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:29:59,487 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:29:59,505 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:29:59,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,554 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,554 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,555 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,555 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,556 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,556 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,556 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,557 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,557 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,557 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,558 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,558 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,558 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,558 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,559 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,559 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,560 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,560 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,561 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,561 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,561 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,562 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,562 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,563 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,563 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,563 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,564 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,564 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,564 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,566 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,566 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,566 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,566 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,567 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,567 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,567 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,570 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,570 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,576 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,577 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,578 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,578 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,578 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,578 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,579 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,579 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,579 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,581 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,581 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,586 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,587 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,587 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,587 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,589 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,589 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,593 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,593 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,596 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,596 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,597 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,597 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,598 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,601 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,611 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,612 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,613 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,622 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,634 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,634 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,634 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,642 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,642 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,646 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,646 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,646 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,646 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,647 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,647 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,647 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,647 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,647 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,648 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,648 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,648 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,648 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,648 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,648 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,649 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,649 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,649 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,649 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,649 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,650 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,650 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,650 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,650 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,658 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,658 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,672 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,672 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,672 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,673 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:29:59,843 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2020-10-16 12:29:59,862 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-16 12:29:59,894 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:29:59,895 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:29:59,895 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:29:59,895 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:29:59,895 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:29:59,895 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:29:59,896 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:29:59,896 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:29:59,922 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:29:59,923 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 243 transitions, 866 flow [2020-10-16 12:29:59,926 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 243 transitions, 866 flow [2020-10-16 12:29:59,929 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 172 places, 243 transitions, 866 flow [2020-10-16 12:30:00,059 INFO L129 PetriNetUnfolder]: 61/264 cut-off events. [2020-10-16 12:30:00,060 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-10-16 12:30:00,074 INFO L80 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 264 events. 61/264 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 750 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 353. Up to 24 conditions per place. [2020-10-16 12:30:00,087 INFO L117 LiptonReduction]: Number of co-enabled transitions 4038 [2020-10-16 12:30:01,447 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-16 12:30:01,990 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-16 12:30:02,155 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-16 12:30:02,432 INFO L132 LiptonReduction]: Checked pairs total: 47722 [2020-10-16 12:30:02,433 INFO L134 LiptonReduction]: Total number of compositions: 76 [2020-10-16 12:30:02,444 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 173 transitions, 726 flow [2020-10-16 12:30:03,255 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3502 states. [2020-10-16 12:30:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states. [2020-10-16 12:30:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:30:03,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:03,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:03,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:03,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:03,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1069688068, now seen corresponding path program 1 times [2020-10-16 12:30:03,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:03,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720219629] [2020-10-16 12:30:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:03,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720219629] [2020-10-16 12:30:03,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:03,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:03,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1057663649] [2020-10-16 12:30:03,748 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:03,753 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:03,783 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 13 transitions. [2020-10-16 12:30:03,783 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:03,821 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7185#(not (= |ULTIMATE.start_main_#t~mem14| 0))] [2020-10-16 12:30:03,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:03,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:03,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:03,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:03,842 INFO L87 Difference]: Start difference. First operand 3502 states. Second operand 7 states. [2020-10-16 12:30:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:04,423 INFO L93 Difference]: Finished difference Result 4746 states and 19878 transitions. [2020-10-16 12:30:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:04,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-10-16 12:30:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:04,515 INFO L225 Difference]: With dead ends: 4746 [2020-10-16 12:30:04,515 INFO L226 Difference]: Without dead ends: 4260 [2020-10-16 12:30:04,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:04,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4260 states. [2020-10-16 12:30:04,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4260 to 3008. [2020-10-16 12:30:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3008 states. [2020-10-16 12:30:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 12255 transitions. [2020-10-16 12:30:04,888 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 12255 transitions. Word has length 9 [2020-10-16 12:30:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:04,889 INFO L481 AbstractCegarLoop]: Abstraction has 3008 states and 12255 transitions. [2020-10-16 12:30:04,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 12255 transitions. [2020-10-16 12:30:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:30:04,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:04,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:04,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:30:04,892 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:04,893 INFO L82 PathProgramCache]: Analyzing trace with hash -690496787, now seen corresponding path program 1 times [2020-10-16 12:30:04,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:04,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287044183] [2020-10-16 12:30:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:05,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287044183] [2020-10-16 12:30:05,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:05,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:05,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [62763953] [2020-10-16 12:30:05,075 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:05,078 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:05,087 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-10-16 12:30:05,087 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:05,089 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:05,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:05,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:05,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:05,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:05,093 INFO L87 Difference]: Start difference. First operand 3008 states and 12255 transitions. Second operand 3 states. [2020-10-16 12:30:05,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:05,291 INFO L93 Difference]: Finished difference Result 4848 states and 19273 transitions. [2020-10-16 12:30:05,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:05,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 12:30:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:05,336 INFO L225 Difference]: With dead ends: 4848 [2020-10-16 12:30:05,336 INFO L226 Difference]: Without dead ends: 3558 [2020-10-16 12:30:05,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2020-10-16 12:30:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3181. [2020-10-16 12:30:05,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2020-10-16 12:30:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12171 transitions. [2020-10-16 12:30:05,540 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12171 transitions. Word has length 16 [2020-10-16 12:30:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:05,541 INFO L481 AbstractCegarLoop]: Abstraction has 3181 states and 12171 transitions. [2020-10-16 12:30:05,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12171 transitions. [2020-10-16 12:30:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:30:05,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:05,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:05,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:30:05,547 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:05,547 INFO L82 PathProgramCache]: Analyzing trace with hash 69435085, now seen corresponding path program 1 times [2020-10-16 12:30:05,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:05,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771575077] [2020-10-16 12:30:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:05,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771575077] [2020-10-16 12:30:05,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:05,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:05,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1212234567] [2020-10-16 12:30:05,721 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:05,723 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:05,729 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions. [2020-10-16 12:30:05,729 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:05,774 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:05,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:05,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:05,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:05,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:05,776 INFO L87 Difference]: Start difference. First operand 3181 states and 12171 transitions. Second operand 6 states. [2020-10-16 12:30:06,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:06,057 INFO L93 Difference]: Finished difference Result 4417 states and 17212 transitions. [2020-10-16 12:30:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:06,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 12:30:06,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:06,098 INFO L225 Difference]: With dead ends: 4417 [2020-10-16 12:30:06,098 INFO L226 Difference]: Without dead ends: 4393 [2020-10-16 12:30:06,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2020-10-16 12:30:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 3588. [2020-10-16 12:30:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2020-10-16 12:30:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 14085 transitions. [2020-10-16 12:30:06,391 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 14085 transitions. Word has length 17 [2020-10-16 12:30:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:06,392 INFO L481 AbstractCegarLoop]: Abstraction has 3588 states and 14085 transitions. [2020-10-16 12:30:06,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 14085 transitions. [2020-10-16 12:30:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:30:06,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:06,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:06,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:30:06,396 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:06,396 INFO L82 PathProgramCache]: Analyzing trace with hash -954298863, now seen corresponding path program 2 times [2020-10-16 12:30:06,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:06,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301668991] [2020-10-16 12:30:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:06,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:06,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301668991] [2020-10-16 12:30:06,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:06,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:06,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1557761512] [2020-10-16 12:30:06,489 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:06,491 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:06,496 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 23 transitions. [2020-10-16 12:30:06,496 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:06,499 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:06,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:06,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:06,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:06,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:06,501 INFO L87 Difference]: Start difference. First operand 3588 states and 14085 transitions. Second operand 6 states. [2020-10-16 12:30:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:06,665 INFO L93 Difference]: Finished difference Result 4024 states and 15445 transitions. [2020-10-16 12:30:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:30:06,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 12:30:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:06,697 INFO L225 Difference]: With dead ends: 4024 [2020-10-16 12:30:06,698 INFO L226 Difference]: Without dead ends: 4024 [2020-10-16 12:30:06,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2020-10-16 12:30:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3573. [2020-10-16 12:30:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3573 states. [2020-10-16 12:30:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 14045 transitions. [2020-10-16 12:30:06,889 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 14045 transitions. Word has length 17 [2020-10-16 12:30:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:06,889 INFO L481 AbstractCegarLoop]: Abstraction has 3573 states and 14045 transitions. [2020-10-16 12:30:06,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 14045 transitions. [2020-10-16 12:30:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:06,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:06,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:06,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:30:06,892 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:06,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:06,893 INFO L82 PathProgramCache]: Analyzing trace with hash -687500069, now seen corresponding path program 1 times [2020-10-16 12:30:06,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:06,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757347958] [2020-10-16 12:30:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:06,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757347958] [2020-10-16 12:30:06,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:06,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:06,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1981384539] [2020-10-16 12:30:06,964 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:06,967 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:06,972 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 33 transitions. [2020-10-16 12:30:06,972 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:06,992 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:06,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:06,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:06,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:06,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:06,994 INFO L87 Difference]: Start difference. First operand 3573 states and 14045 transitions. Second operand 6 states. [2020-10-16 12:30:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:07,237 INFO L93 Difference]: Finished difference Result 4225 states and 16225 transitions. [2020-10-16 12:30:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:07,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 12:30:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:07,268 INFO L225 Difference]: With dead ends: 4225 [2020-10-16 12:30:07,269 INFO L226 Difference]: Without dead ends: 4129 [2020-10-16 12:30:07,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2020-10-16 12:30:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3713. [2020-10-16 12:30:07,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3713 states. [2020-10-16 12:30:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 14455 transitions. [2020-10-16 12:30:07,587 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 14455 transitions. Word has length 18 [2020-10-16 12:30:07,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:07,588 INFO L481 AbstractCegarLoop]: Abstraction has 3713 states and 14455 transitions. [2020-10-16 12:30:07,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:07,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 14455 transitions. [2020-10-16 12:30:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:07,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:07,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:07,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:30:07,591 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:07,591 INFO L82 PathProgramCache]: Analyzing trace with hash -454402421, now seen corresponding path program 2 times [2020-10-16 12:30:07,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:07,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105376447] [2020-10-16 12:30:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:07,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105376447] [2020-10-16 12:30:07,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:07,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:30:07,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1492198900] [2020-10-16 12:30:07,687 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:07,690 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:07,694 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 22 transitions. [2020-10-16 12:30:07,694 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:07,703 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:07,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:07,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:07,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:07,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:07,704 INFO L87 Difference]: Start difference. First operand 3713 states and 14455 transitions. Second operand 7 states. [2020-10-16 12:30:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:08,046 INFO L93 Difference]: Finished difference Result 4979 states and 19779 transitions. [2020-10-16 12:30:08,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:08,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-16 12:30:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:08,090 INFO L225 Difference]: With dead ends: 4979 [2020-10-16 12:30:08,091 INFO L226 Difference]: Without dead ends: 4905 [2020-10-16 12:30:08,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4905 states. [2020-10-16 12:30:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4905 to 4131. [2020-10-16 12:30:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4131 states. [2020-10-16 12:30:08,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 16620 transitions. [2020-10-16 12:30:08,317 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 16620 transitions. Word has length 18 [2020-10-16 12:30:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:08,318 INFO L481 AbstractCegarLoop]: Abstraction has 4131 states and 16620 transitions. [2020-10-16 12:30:08,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:08,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 16620 transitions. [2020-10-16 12:30:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:08,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:08,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:08,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:30:08,322 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:08,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:08,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1254406997, now seen corresponding path program 3 times [2020-10-16 12:30:08,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:08,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807591375] [2020-10-16 12:30:08,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:08,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807591375] [2020-10-16 12:30:08,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:08,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:30:08,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [492893762] [2020-10-16 12:30:08,464 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:08,466 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:08,470 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 24 transitions. [2020-10-16 12:30:08,470 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:08,486 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [76879#(not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) thread3Thread1of1ForFork0_thidvar0))] [2020-10-16 12:30:08,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:30:08,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:08,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:30:08,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:08,487 INFO L87 Difference]: Start difference. First operand 4131 states and 16620 transitions. Second operand 9 states. [2020-10-16 12:30:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:09,371 INFO L93 Difference]: Finished difference Result 5390 states and 21925 transitions. [2020-10-16 12:30:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:09,372 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-16 12:30:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:09,406 INFO L225 Difference]: With dead ends: 5390 [2020-10-16 12:30:09,407 INFO L226 Difference]: Without dead ends: 5316 [2020-10-16 12:30:09,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:30:09,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5316 states. [2020-10-16 12:30:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5316 to 4125. [2020-10-16 12:30:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4125 states. [2020-10-16 12:30:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 16604 transitions. [2020-10-16 12:30:09,630 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 16604 transitions. Word has length 18 [2020-10-16 12:30:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:09,631 INFO L481 AbstractCegarLoop]: Abstraction has 4125 states and 16604 transitions. [2020-10-16 12:30:09,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:30:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 16604 transitions. [2020-10-16 12:30:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:09,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:09,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:09,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:30:09,634 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash -164095139, now seen corresponding path program 4 times [2020-10-16 12:30:09,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:09,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810752079] [2020-10-16 12:30:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:09,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810752079] [2020-10-16 12:30:09,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:09,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:30:09,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [726532592] [2020-10-16 12:30:09,808 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:09,811 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:09,815 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 20 transitions. [2020-10-16 12:30:09,816 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:09,818 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:09,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:30:09,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:09,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:30:09,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:30:09,820 INFO L87 Difference]: Start difference. First operand 4125 states and 16604 transitions. Second operand 10 states. [2020-10-16 12:30:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:10,449 INFO L93 Difference]: Finished difference Result 7215 states and 29056 transitions. [2020-10-16 12:30:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:10,450 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-16 12:30:10,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:10,487 INFO L225 Difference]: With dead ends: 7215 [2020-10-16 12:30:10,487 INFO L226 Difference]: Without dead ends: 7067 [2020-10-16 12:30:10,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:30:10,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2020-10-16 12:30:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 3873. [2020-10-16 12:30:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3873 states. [2020-10-16 12:30:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3873 states to 3873 states and 15364 transitions. [2020-10-16 12:30:10,860 INFO L78 Accepts]: Start accepts. Automaton has 3873 states and 15364 transitions. Word has length 18 [2020-10-16 12:30:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:10,862 INFO L481 AbstractCegarLoop]: Abstraction has 3873 states and 15364 transitions. [2020-10-16 12:30:10,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:30:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3873 states and 15364 transitions. [2020-10-16 12:30:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:30:10,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:10,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:10,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:30:10,866 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:10,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2041625758, now seen corresponding path program 1 times [2020-10-16 12:30:10,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:10,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111951873] [2020-10-16 12:30:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:11,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111951873] [2020-10-16 12:30:11,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:11,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:30:11,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1168265964] [2020-10-16 12:30:11,017 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:11,024 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:11,030 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 33 transitions. [2020-10-16 12:30:11,031 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:11,046 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:11,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:11,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:11,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:11,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:11,047 INFO L87 Difference]: Start difference. First operand 3873 states and 15364 transitions. Second operand 7 states. [2020-10-16 12:30:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:11,233 INFO L93 Difference]: Finished difference Result 4264 states and 16502 transitions. [2020-10-16 12:30:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:30:11,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-16 12:30:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:11,250 INFO L225 Difference]: With dead ends: 4264 [2020-10-16 12:30:11,251 INFO L226 Difference]: Without dead ends: 4264 [2020-10-16 12:30:11,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2020-10-16 12:30:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 3841. [2020-10-16 12:30:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-10-16 12:30:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 15250 transitions. [2020-10-16 12:30:11,416 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 15250 transitions. Word has length 19 [2020-10-16 12:30:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:11,416 INFO L481 AbstractCegarLoop]: Abstraction has 3841 states and 15250 transitions. [2020-10-16 12:30:11,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 15250 transitions. [2020-10-16 12:30:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:30:11,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:11,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:11,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:30:11,420 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:11,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1134272272, now seen corresponding path program 1 times [2020-10-16 12:30:11,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:11,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97632206] [2020-10-16 12:30:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:11,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97632206] [2020-10-16 12:30:11,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:11,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:11,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [364803562] [2020-10-16 12:30:11,557 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:11,559 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:11,565 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 38 transitions. [2020-10-16 12:30:11,565 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:11,577 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:11,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:30:11,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:11,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:30:11,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:11,579 INFO L87 Difference]: Start difference. First operand 3841 states and 15250 transitions. Second operand 9 states. [2020-10-16 12:30:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:11,940 INFO L93 Difference]: Finished difference Result 5256 states and 20905 transitions. [2020-10-16 12:30:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:11,941 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 12:30:11,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:11,959 INFO L225 Difference]: With dead ends: 5256 [2020-10-16 12:30:11,959 INFO L226 Difference]: Without dead ends: 5210 [2020-10-16 12:30:11,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:30:11,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2020-10-16 12:30:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 3994. [2020-10-16 12:30:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3994 states. [2020-10-16 12:30:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 15976 transitions. [2020-10-16 12:30:12,218 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 15976 transitions. Word has length 20 [2020-10-16 12:30:12,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:12,219 INFO L481 AbstractCegarLoop]: Abstraction has 3994 states and 15976 transitions. [2020-10-16 12:30:12,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:30:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 15976 transitions. [2020-10-16 12:30:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:30:12,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:12,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:12,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:30:12,223 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:12,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:12,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1058647793, now seen corresponding path program 1 times [2020-10-16 12:30:12,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:12,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154167715] [2020-10-16 12:30:12,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:12,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154167715] [2020-10-16 12:30:12,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:12,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:12,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1439030226] [2020-10-16 12:30:12,364 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:12,367 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:12,371 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 22 transitions. [2020-10-16 12:30:12,371 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:12,372 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:12,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:30:12,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:12,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:30:12,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:12,374 INFO L87 Difference]: Start difference. First operand 3994 states and 15976 transitions. Second operand 9 states. [2020-10-16 12:30:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:12,722 INFO L93 Difference]: Finished difference Result 5328 states and 21486 transitions. [2020-10-16 12:30:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:12,723 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 12:30:12,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:12,742 INFO L225 Difference]: With dead ends: 5328 [2020-10-16 12:30:12,742 INFO L226 Difference]: Without dead ends: 5282 [2020-10-16 12:30:12,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:30:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2020-10-16 12:30:12,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 3840. [2020-10-16 12:30:12,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-16 12:30:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 15247 transitions. [2020-10-16 12:30:12,923 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 15247 transitions. Word has length 20 [2020-10-16 12:30:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:12,923 INFO L481 AbstractCegarLoop]: Abstraction has 3840 states and 15247 transitions. [2020-10-16 12:30:12,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:30:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 15247 transitions. [2020-10-16 12:30:12,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:30:12,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:12,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:12,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:30:12,927 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:12,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:12,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2045819536, now seen corresponding path program 2 times [2020-10-16 12:30:12,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:12,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12288935] [2020-10-16 12:30:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:13,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12288935] [2020-10-16 12:30:13,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:13,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:30:13,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [988366661] [2020-10-16 12:30:13,099 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:13,101 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:13,110 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 38 transitions. [2020-10-16 12:30:13,111 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:13,124 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:13,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:30:13,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:13,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:30:13,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:30:13,125 INFO L87 Difference]: Start difference. First operand 3840 states and 15247 transitions. Second operand 10 states. [2020-10-16 12:30:13,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:13,820 INFO L93 Difference]: Finished difference Result 5284 states and 20663 transitions. [2020-10-16 12:30:13,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:30:13,821 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 12:30:13,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:13,846 INFO L225 Difference]: With dead ends: 5284 [2020-10-16 12:30:13,846 INFO L226 Difference]: Without dead ends: 5192 [2020-10-16 12:30:13,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-16 12:30:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2020-10-16 12:30:14,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 3734. [2020-10-16 12:30:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3734 states. [2020-10-16 12:30:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 14462 transitions. [2020-10-16 12:30:14,041 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 14462 transitions. Word has length 20 [2020-10-16 12:30:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:14,042 INFO L481 AbstractCegarLoop]: Abstraction has 3734 states and 14462 transitions. [2020-10-16 12:30:14,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:30:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 14462 transitions. [2020-10-16 12:30:14,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:30:14,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:14,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:14,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:30:14,047 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:14,047 INFO L82 PathProgramCache]: Analyzing trace with hash 258643217, now seen corresponding path program 2 times [2020-10-16 12:30:14,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:14,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037262173] [2020-10-16 12:30:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:14,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037262173] [2020-10-16 12:30:14,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:14,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:30:14,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1242909243] [2020-10-16 12:30:14,250 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:14,253 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:14,261 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 26 transitions. [2020-10-16 12:30:14,261 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:14,286 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [156542#(not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) thread3Thread1of1ForFork0_thidvar0))] [2020-10-16 12:30:14,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 12:30:14,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:14,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 12:30:14,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:14,288 INFO L87 Difference]: Start difference. First operand 3734 states and 14462 transitions. Second operand 11 states. [2020-10-16 12:30:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:15,085 INFO L93 Difference]: Finished difference Result 5006 states and 19488 transitions. [2020-10-16 12:30:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:30:15,085 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-10-16 12:30:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:15,111 INFO L225 Difference]: With dead ends: 5006 [2020-10-16 12:30:15,112 INFO L226 Difference]: Without dead ends: 4960 [2020-10-16 12:30:15,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-10-16 12:30:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4960 states. [2020-10-16 12:30:15,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4960 to 3727. [2020-10-16 12:30:15,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3727 states. [2020-10-16 12:30:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 14449 transitions. [2020-10-16 12:30:15,284 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 14449 transitions. Word has length 20 [2020-10-16 12:30:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:15,285 INFO L481 AbstractCegarLoop]: Abstraction has 3727 states and 14449 transitions. [2020-10-16 12:30:15,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 12:30:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 14449 transitions. [2020-10-16 12:30:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 12:30:15,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:15,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:15,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:30:15,289 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:15,290 INFO L82 PathProgramCache]: Analyzing trace with hash 657525156, now seen corresponding path program 3 times [2020-10-16 12:30:15,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:15,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296881144] [2020-10-16 12:30:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:15,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296881144] [2020-10-16 12:30:15,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:15,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:30:15,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1869110441] [2020-10-16 12:30:15,419 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:15,421 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:15,428 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 42 transitions. [2020-10-16 12:30:15,428 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:15,453 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [169026#(not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) thread2Thread1of1ForFork5_thidvar0))] [2020-10-16 12:30:15,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:30:15,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:15,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:30:15,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:15,454 INFO L87 Difference]: Start difference. First operand 3727 states and 14449 transitions. Second operand 8 states. [2020-10-16 12:30:15,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:15,768 INFO L93 Difference]: Finished difference Result 4367 states and 16640 transitions. [2020-10-16 12:30:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 12:30:15,769 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-10-16 12:30:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:15,785 INFO L225 Difference]: With dead ends: 4367 [2020-10-16 12:30:15,785 INFO L226 Difference]: Without dead ends: 4321 [2020-10-16 12:30:15,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:30:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2020-10-16 12:30:15,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 2948. [2020-10-16 12:30:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2948 states. [2020-10-16 12:30:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 10967 transitions. [2020-10-16 12:30:15,885 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 10967 transitions. Word has length 20 [2020-10-16 12:30:15,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:15,885 INFO L481 AbstractCegarLoop]: Abstraction has 2948 states and 10967 transitions. [2020-10-16 12:30:15,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:30:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 10967 transitions. [2020-10-16 12:30:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:30:15,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:15,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:15,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:30:15,888 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:15,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1935934284, now seen corresponding path program 1 times [2020-10-16 12:30:15,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:15,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431312577] [2020-10-16 12:30:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:15,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:15,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431312577] [2020-10-16 12:30:15,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:15,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:15,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2083052003] [2020-10-16 12:30:15,954 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:15,956 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:15,964 INFO L258 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions. [2020-10-16 12:30:15,964 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:15,981 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:15,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:15,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:15,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:15,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:15,982 INFO L87 Difference]: Start difference. First operand 2948 states and 10967 transitions. Second operand 6 states. [2020-10-16 12:30:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:16,228 INFO L93 Difference]: Finished difference Result 3727 states and 13634 transitions. [2020-10-16 12:30:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:16,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 12:30:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:16,243 INFO L225 Difference]: With dead ends: 3727 [2020-10-16 12:30:16,244 INFO L226 Difference]: Without dead ends: 3652 [2020-10-16 12:30:16,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:16,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2020-10-16 12:30:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3270. [2020-10-16 12:30:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-10-16 12:30:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 12154 transitions. [2020-10-16 12:30:16,370 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 12154 transitions. Word has length 21 [2020-10-16 12:30:16,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:16,370 INFO L481 AbstractCegarLoop]: Abstraction has 3270 states and 12154 transitions. [2020-10-16 12:30:16,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 12154 transitions. [2020-10-16 12:30:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:30:16,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:16,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:16,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:30:16,375 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:16,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:16,375 INFO L82 PathProgramCache]: Analyzing trace with hash 558788524, now seen corresponding path program 1 times [2020-10-16 12:30:16,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:16,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60167366] [2020-10-16 12:30:16,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:16,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60167366] [2020-10-16 12:30:16,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:16,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 12:30:16,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [158677225] [2020-10-16 12:30:16,687 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:16,690 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:16,695 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 25 transitions. [2020-10-16 12:30:16,696 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:16,699 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:16,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:30:16,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:16,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:30:16,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:16,701 INFO L87 Difference]: Start difference. First operand 3270 states and 12154 transitions. Second operand 12 states. [2020-10-16 12:30:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:17,500 INFO L93 Difference]: Finished difference Result 4405 states and 16600 transitions. [2020-10-16 12:30:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:30:17,501 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-10-16 12:30:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:17,516 INFO L225 Difference]: With dead ends: 4405 [2020-10-16 12:30:17,516 INFO L226 Difference]: Without dead ends: 4371 [2020-10-16 12:30:17,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-16 12:30:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2020-10-16 12:30:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 3270. [2020-10-16 12:30:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-10-16 12:30:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 12154 transitions. [2020-10-16 12:30:17,610 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 12154 transitions. Word has length 21 [2020-10-16 12:30:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:17,611 INFO L481 AbstractCegarLoop]: Abstraction has 3270 states and 12154 transitions. [2020-10-16 12:30:17,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:30:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 12154 transitions. [2020-10-16 12:30:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:30:17,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:17,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:17,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 12:30:17,615 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash 540913924, now seen corresponding path program 2 times [2020-10-16 12:30:17,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:17,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695771144] [2020-10-16 12:30:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:17,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695771144] [2020-10-16 12:30:17,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:17,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:30:17,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1259220358] [2020-10-16 12:30:17,852 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:17,854 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:17,858 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 27 transitions. [2020-10-16 12:30:17,859 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:17,865 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:17,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 12:30:17,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:17,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 12:30:17,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:17,867 INFO L87 Difference]: Start difference. First operand 3270 states and 12154 transitions. Second operand 11 states. [2020-10-16 12:30:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:18,371 INFO L93 Difference]: Finished difference Result 4064 states and 15268 transitions. [2020-10-16 12:30:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:30:18,372 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-16 12:30:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:18,382 INFO L225 Difference]: With dead ends: 4064 [2020-10-16 12:30:18,382 INFO L226 Difference]: Without dead ends: 3972 [2020-10-16 12:30:18,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-16 12:30:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2020-10-16 12:30:18,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2499. [2020-10-16 12:30:18,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2499 states. [2020-10-16 12:30:18,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 9076 transitions. [2020-10-16 12:30:18,457 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 9076 transitions. Word has length 21 [2020-10-16 12:30:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:18,458 INFO L481 AbstractCegarLoop]: Abstraction has 2499 states and 9076 transitions. [2020-10-16 12:30:18,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 12:30:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 9076 transitions. [2020-10-16 12:30:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:30:18,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:18,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:18,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 12:30:18,460 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:18,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:18,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1608946948, now seen corresponding path program 2 times [2020-10-16 12:30:18,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:18,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724012964] [2020-10-16 12:30:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:18,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724012964] [2020-10-16 12:30:18,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:18,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:18,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1179119723] [2020-10-16 12:30:18,512 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:18,515 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:18,519 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 29 transitions. [2020-10-16 12:30:18,519 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:18,523 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:18,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:18,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:18,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:18,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:18,525 INFO L87 Difference]: Start difference. First operand 2499 states and 9076 transitions. Second operand 6 states. [2020-10-16 12:30:18,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:18,636 INFO L93 Difference]: Finished difference Result 2874 states and 10132 transitions. [2020-10-16 12:30:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:30:18,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 12:30:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:18,642 INFO L225 Difference]: With dead ends: 2874 [2020-10-16 12:30:18,643 INFO L226 Difference]: Without dead ends: 2650 [2020-10-16 12:30:18,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-10-16 12:30:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2211. [2020-10-16 12:30:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2020-10-16 12:30:18,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 7918 transitions. [2020-10-16 12:30:18,706 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 7918 transitions. Word has length 21 [2020-10-16 12:30:18,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:18,706 INFO L481 AbstractCegarLoop]: Abstraction has 2211 states and 7918 transitions. [2020-10-16 12:30:18,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:18,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 7918 transitions. [2020-10-16 12:30:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:18,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:18,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:18,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 12:30:18,710 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:18,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1396456954, now seen corresponding path program 1 times [2020-10-16 12:30:18,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:18,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853319622] [2020-10-16 12:30:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:18,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853319622] [2020-10-16 12:30:18,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:18,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:30:18,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1785330433] [2020-10-16 12:30:18,809 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:18,813 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:18,821 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 42 transitions. [2020-10-16 12:30:18,821 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:18,848 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [216948#(not (= |ULTIMATE.start_main_#t~mem14| 3))] [2020-10-16 12:30:18,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:30:18,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:18,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:30:18,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:18,850 INFO L87 Difference]: Start difference. First operand 2211 states and 7918 transitions. Second operand 8 states. [2020-10-16 12:30:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:19,071 INFO L93 Difference]: Finished difference Result 2930 states and 10378 transitions. [2020-10-16 12:30:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:19,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 12:30:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:19,079 INFO L225 Difference]: With dead ends: 2930 [2020-10-16 12:30:19,079 INFO L226 Difference]: Without dead ends: 2870 [2020-10-16 12:30:19,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:30:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2020-10-16 12:30:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2208. [2020-10-16 12:30:19,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2020-10-16 12:30:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 7913 transitions. [2020-10-16 12:30:19,154 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 7913 transitions. Word has length 22 [2020-10-16 12:30:19,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:19,155 INFO L481 AbstractCegarLoop]: Abstraction has 2208 states and 7913 transitions. [2020-10-16 12:30:19,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:30:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 7913 transitions. [2020-10-16 12:30:19,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:19,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:19,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:19,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 12:30:19,159 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:19,160 INFO L82 PathProgramCache]: Analyzing trace with hash 644682778, now seen corresponding path program 2 times [2020-10-16 12:30:19,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:19,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893050229] [2020-10-16 12:30:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:19,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893050229] [2020-10-16 12:30:19,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:19,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:30:19,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [957787927] [2020-10-16 12:30:19,305 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:19,308 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:19,315 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 44 transitions. [2020-10-16 12:30:19,315 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:19,352 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [224314#(not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) 3)), 224313#(not (= |ULTIMATE.start_main_#t~mem14| 3))] [2020-10-16 12:30:19,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:30:19,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:19,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:30:19,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:30:19,353 INFO L87 Difference]: Start difference. First operand 2208 states and 7913 transitions. Second operand 10 states. [2020-10-16 12:30:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:19,691 INFO L93 Difference]: Finished difference Result 3289 states and 11559 transitions. [2020-10-16 12:30:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 12:30:19,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-16 12:30:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:19,698 INFO L225 Difference]: With dead ends: 3289 [2020-10-16 12:30:19,698 INFO L226 Difference]: Without dead ends: 3205 [2020-10-16 12:30:19,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:30:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2020-10-16 12:30:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 2198. [2020-10-16 12:30:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2198 states. [2020-10-16 12:30:19,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 7894 transitions. [2020-10-16 12:30:19,737 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 7894 transitions. Word has length 22 [2020-10-16 12:30:19,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:19,737 INFO L481 AbstractCegarLoop]: Abstraction has 2198 states and 7894 transitions. [2020-10-16 12:30:19,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:30:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 7894 transitions. [2020-10-16 12:30:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:19,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:19,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:19,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 12:30:19,739 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:19,740 INFO L82 PathProgramCache]: Analyzing trace with hash -787433364, now seen corresponding path program 3 times [2020-10-16 12:30:19,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:19,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653743038] [2020-10-16 12:30:19,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:19,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653743038] [2020-10-16 12:30:19,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:19,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:19,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [685905869] [2020-10-16 12:30:19,841 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:19,844 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:19,851 INFO L258 McrAutomatonBuilder]: Finished intersection with 37 states and 52 transitions. [2020-10-16 12:30:19,852 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:19,913 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [232026#(not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) 3)), 232025#(not (= |ULTIMATE.start_main_#t~mem14| 3))] [2020-10-16 12:30:19,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 12:30:19,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:19,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 12:30:19,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:19,914 INFO L87 Difference]: Start difference. First operand 2198 states and 7894 transitions. Second operand 11 states. [2020-10-16 12:30:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:20,470 INFO L93 Difference]: Finished difference Result 4207 states and 14722 transitions. [2020-10-16 12:30:20,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 12:30:20,470 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-10-16 12:30:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:20,480 INFO L225 Difference]: With dead ends: 4207 [2020-10-16 12:30:20,481 INFO L226 Difference]: Without dead ends: 4147 [2020-10-16 12:30:20,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:30:20,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2020-10-16 12:30:20,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 2192. [2020-10-16 12:30:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2192 states. [2020-10-16 12:30:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 7875 transitions. [2020-10-16 12:30:20,534 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 7875 transitions. Word has length 22 [2020-10-16 12:30:20,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:20,534 INFO L481 AbstractCegarLoop]: Abstraction has 2192 states and 7875 transitions. [2020-10-16 12:30:20,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 12:30:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 7875 transitions. [2020-10-16 12:30:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:20,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:20,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:20,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 12:30:20,538 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:20,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:20,538 INFO L82 PathProgramCache]: Analyzing trace with hash -270857424, now seen corresponding path program 4 times [2020-10-16 12:30:20,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:20,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989385948] [2020-10-16 12:30:20,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:20,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989385948] [2020-10-16 12:30:20,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:20,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:30:20,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1263893950] [2020-10-16 12:30:20,755 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:20,759 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:20,766 INFO L258 McrAutomatonBuilder]: Finished intersection with 28 states and 32 transitions. [2020-10-16 12:30:20,766 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:20,790 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [240649#(and (not (= ~v~0.base |ULTIMATE.start_main_~#t~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) 3)))] [2020-10-16 12:30:20,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:30:20,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:20,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:30:20,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:20,792 INFO L87 Difference]: Start difference. First operand 2192 states and 7875 transitions. Second operand 12 states. [2020-10-16 12:30:21,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:21,184 INFO L93 Difference]: Finished difference Result 3090 states and 11020 transitions. [2020-10-16 12:30:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:21,184 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:30:21,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:21,191 INFO L225 Difference]: With dead ends: 3090 [2020-10-16 12:30:21,191 INFO L226 Difference]: Without dead ends: 3030 [2020-10-16 12:30:21,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-16 12:30:21,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-10-16 12:30:21,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2168. [2020-10-16 12:30:21,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2168 states. [2020-10-16 12:30:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 7789 transitions. [2020-10-16 12:30:21,235 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 7789 transitions. Word has length 22 [2020-10-16 12:30:21,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:21,235 INFO L481 AbstractCegarLoop]: Abstraction has 2168 states and 7789 transitions. [2020-10-16 12:30:21,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:30:21,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 7789 transitions. [2020-10-16 12:30:21,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 12:30:21,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:21,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:21,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 12:30:21,238 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:21,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:21,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1357008819, now seen corresponding path program 1 times [2020-10-16 12:30:21,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:21,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406714435] [2020-10-16 12:30:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:21,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406714435] [2020-10-16 12:30:21,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:21,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:30:21,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1509744436] [2020-10-16 12:30:21,382 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:21,385 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:21,394 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 55 transitions. [2020-10-16 12:30:21,394 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:21,422 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:21,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:30:21,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:21,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:30:21,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:30:21,423 INFO L87 Difference]: Start difference. First operand 2168 states and 7789 transitions. Second operand 10 states. [2020-10-16 12:30:21,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:21,840 INFO L93 Difference]: Finished difference Result 3593 states and 12502 transitions. [2020-10-16 12:30:21,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:21,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-16 12:30:21,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:21,849 INFO L225 Difference]: With dead ends: 3593 [2020-10-16 12:30:21,850 INFO L226 Difference]: Without dead ends: 3476 [2020-10-16 12:30:21,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:30:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2020-10-16 12:30:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 1977. [2020-10-16 12:30:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1977 states. [2020-10-16 12:30:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 7017 transitions. [2020-10-16 12:30:21,893 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 7017 transitions. Word has length 23 [2020-10-16 12:30:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:21,893 INFO L481 AbstractCegarLoop]: Abstraction has 1977 states and 7017 transitions. [2020-10-16 12:30:21,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:30:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 7017 transitions. [2020-10-16 12:30:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 12:30:21,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:21,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:21,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 12:30:21,896 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:21,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:21,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1309010247, now seen corresponding path program 1 times [2020-10-16 12:30:21,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:21,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19188256] [2020-10-16 12:30:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:21,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19188256] [2020-10-16 12:30:21,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:21,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:21,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1008666005] [2020-10-16 12:30:21,951 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:21,955 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:21,963 INFO L258 McrAutomatonBuilder]: Finished intersection with 42 states and 59 transitions. [2020-10-16 12:30:21,963 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:22,001 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:22,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:22,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:22,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:22,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:22,003 INFO L87 Difference]: Start difference. First operand 1977 states and 7017 transitions. Second operand 6 states. [2020-10-16 12:30:22,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:22,165 INFO L93 Difference]: Finished difference Result 2474 states and 8453 transitions. [2020-10-16 12:30:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:22,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-16 12:30:22,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:22,172 INFO L225 Difference]: With dead ends: 2474 [2020-10-16 12:30:22,172 INFO L226 Difference]: Without dead ends: 2410 [2020-10-16 12:30:22,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:22,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2020-10-16 12:30:22,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2289. [2020-10-16 12:30:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2289 states. [2020-10-16 12:30:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 8009 transitions. [2020-10-16 12:30:22,212 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 8009 transitions. Word has length 24 [2020-10-16 12:30:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:22,213 INFO L481 AbstractCegarLoop]: Abstraction has 2289 states and 8009 transitions. [2020-10-16 12:30:22,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:22,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 8009 transitions. [2020-10-16 12:30:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 12:30:22,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:22,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:22,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 12:30:22,217 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:22,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:22,217 INFO L82 PathProgramCache]: Analyzing trace with hash -106935726, now seen corresponding path program 1 times [2020-10-16 12:30:22,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:22,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732977540] [2020-10-16 12:30:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:22,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732977540] [2020-10-16 12:30:22,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:22,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 12:30:22,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1152038456] [2020-10-16 12:30:22,354 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:22,357 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:22,366 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-16 12:30:22,366 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:22,415 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [262726#(not (= (select (select |#memory_int| |ULTIMATE.start_main_~#t~0.base|) |ULTIMATE.start_main_~#t~0.offset|) thread2Thread1of1ForFork1_thidvar0))] [2020-10-16 12:30:22,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:30:22,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:22,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:30:22,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:22,416 INFO L87 Difference]: Start difference. First operand 2289 states and 8009 transitions. Second operand 12 states. [2020-10-16 12:30:22,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:22,855 INFO L93 Difference]: Finished difference Result 3085 states and 10833 transitions. [2020-10-16 12:30:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:30:22,856 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2020-10-16 12:30:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:22,862 INFO L225 Difference]: With dead ends: 3085 [2020-10-16 12:30:22,862 INFO L226 Difference]: Without dead ends: 3061 [2020-10-16 12:30:22,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-16 12:30:22,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2020-10-16 12:30:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 2271. [2020-10-16 12:30:22,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2020-10-16 12:30:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 7965 transitions. [2020-10-16 12:30:22,905 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 7965 transitions. Word has length 24 [2020-10-16 12:30:22,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:22,905 INFO L481 AbstractCegarLoop]: Abstraction has 2271 states and 7965 transitions. [2020-10-16 12:30:22,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:30:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 7965 transitions. [2020-10-16 12:30:22,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 12:30:22,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:22,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:22,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 12:30:22,908 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:22,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:22,909 INFO L82 PathProgramCache]: Analyzing trace with hash -408101783, now seen corresponding path program 2 times [2020-10-16 12:30:22,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:22,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102665566] [2020-10-16 12:30:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:22,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102665566] [2020-10-16 12:30:22,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:22,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:30:22,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1465515180] [2020-10-16 12:30:22,990 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:22,993 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:23,000 INFO L258 McrAutomatonBuilder]: Finished intersection with 37 states and 48 transitions. [2020-10-16 12:30:23,001 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:23,027 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:23,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:23,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:23,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:23,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:23,028 INFO L87 Difference]: Start difference. First operand 2271 states and 7965 transitions. Second operand 7 states. [2020-10-16 12:30:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:23,272 INFO L93 Difference]: Finished difference Result 2765 states and 9396 transitions. [2020-10-16 12:30:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:23,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-16 12:30:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:23,279 INFO L225 Difference]: With dead ends: 2765 [2020-10-16 12:30:23,279 INFO L226 Difference]: Without dead ends: 2701 [2020-10-16 12:30:23,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:23,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2020-10-16 12:30:23,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2268. [2020-10-16 12:30:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2268 states. [2020-10-16 12:30:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 7960 transitions. [2020-10-16 12:30:23,320 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 7960 transitions. Word has length 24 [2020-10-16 12:30:23,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:23,320 INFO L481 AbstractCegarLoop]: Abstraction has 2268 states and 7960 transitions. [2020-10-16 12:30:23,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 7960 transitions. [2020-10-16 12:30:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 12:30:23,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:23,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:23,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 12:30:23,323 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:23,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1308579191, now seen corresponding path program 3 times [2020-10-16 12:30:23,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:23,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620762803] [2020-10-16 12:30:23,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:23,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620762803] [2020-10-16 12:30:23,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:23,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:30:23,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [867690142] [2020-10-16 12:30:23,421 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:23,424 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:23,432 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 50 transitions. [2020-10-16 12:30:23,432 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:23,458 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:23,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:30:23,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:23,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:30:23,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:23,459 INFO L87 Difference]: Start difference. First operand 2268 states and 7960 transitions. Second operand 8 states. [2020-10-16 12:30:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:23,696 INFO L93 Difference]: Finished difference Result 2755 states and 9376 transitions. [2020-10-16 12:30:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:23,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-16 12:30:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:23,703 INFO L225 Difference]: With dead ends: 2755 [2020-10-16 12:30:23,704 INFO L226 Difference]: Without dead ends: 2691 [2020-10-16 12:30:23,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:30:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2020-10-16 12:30:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2262. [2020-10-16 12:30:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2020-10-16 12:30:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 7946 transitions. [2020-10-16 12:30:23,743 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 7946 transitions. Word has length 24 [2020-10-16 12:30:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:23,744 INFO L481 AbstractCegarLoop]: Abstraction has 2262 states and 7946 transitions. [2020-10-16 12:30:23,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:30:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 7946 transitions. [2020-10-16 12:30:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 12:30:23,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:23,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:23,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 12:30:23,746 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1370549309, now seen corresponding path program 4 times [2020-10-16 12:30:23,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:23,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522940880] [2020-10-16 12:30:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:23,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:23,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522940880] [2020-10-16 12:30:23,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:23,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:30:23,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1613879041] [2020-10-16 12:30:23,875 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:23,879 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:23,886 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-10-16 12:30:23,887 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:23,925 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [284995#(not (= |ULTIMATE.start_main_#t~mem14| 4))] [2020-10-16 12:30:23,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 12:30:23,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:23,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 12:30:23,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:23,927 INFO L87 Difference]: Start difference. First operand 2262 states and 7946 transitions. Second operand 11 states. [2020-10-16 12:30:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:24,259 INFO L93 Difference]: Finished difference Result 2694 states and 9164 transitions. [2020-10-16 12:30:24,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 12:30:24,260 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-10-16 12:30:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:24,267 INFO L225 Difference]: With dead ends: 2694 [2020-10-16 12:30:24,267 INFO L226 Difference]: Without dead ends: 2630 [2020-10-16 12:30:24,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-10-16 12:30:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2020-10-16 12:30:24,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2210. [2020-10-16 12:30:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2210 states. [2020-10-16 12:30:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2210 states to 2210 states and 7752 transitions. [2020-10-16 12:30:24,338 INFO L78 Accepts]: Start accepts. Automaton has 2210 states and 7752 transitions. Word has length 24 [2020-10-16 12:30:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:24,339 INFO L481 AbstractCegarLoop]: Abstraction has 2210 states and 7752 transitions. [2020-10-16 12:30:24,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 12:30:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2210 states and 7752 transitions. [2020-10-16 12:30:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 12:30:24,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:24,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:24,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 12:30:24,342 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:24,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:24,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1607134461, now seen corresponding path program 5 times [2020-10-16 12:30:24,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:24,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575562427] [2020-10-16 12:30:24,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:24,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575562427] [2020-10-16 12:30:24,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:24,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:30:24,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [278048516] [2020-10-16 12:30:24,573 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:24,578 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:24,587 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 38 transitions. [2020-10-16 12:30:24,587 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:24,657 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:24,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 12:30:24,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:24,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 12:30:24,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:30:24,658 INFO L87 Difference]: Start difference. First operand 2210 states and 7752 transitions. Second operand 13 states. [2020-10-16 12:30:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:25,164 INFO L93 Difference]: Finished difference Result 3406 states and 11490 transitions. [2020-10-16 12:30:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:25,166 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-10-16 12:30:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:25,173 INFO L225 Difference]: With dead ends: 3406 [2020-10-16 12:30:25,174 INFO L226 Difference]: Without dead ends: 3278 [2020-10-16 12:30:25,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:30:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2020-10-16 12:30:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 2271. [2020-10-16 12:30:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2020-10-16 12:30:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 8062 transitions. [2020-10-16 12:30:25,219 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 8062 transitions. Word has length 24 [2020-10-16 12:30:25,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:25,219 INFO L481 AbstractCegarLoop]: Abstraction has 2271 states and 8062 transitions. [2020-10-16 12:30:25,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 12:30:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 8062 transitions. [2020-10-16 12:30:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:30:25,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:25,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:25,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-16 12:30:25,223 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:25,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:25,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1945194585, now seen corresponding path program 1 times [2020-10-16 12:30:25,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:25,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293385882] [2020-10-16 12:30:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:25,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293385882] [2020-10-16 12:30:25,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:25,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 12:30:25,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [475352222] [2020-10-16 12:30:25,417 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:25,420 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:25,430 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 57 transitions. [2020-10-16 12:30:25,431 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:25,450 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:25,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:30:25,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:25,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:30:25,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:25,451 INFO L87 Difference]: Start difference. First operand 2271 states and 8062 transitions. Second operand 12 states. [2020-10-16 12:30:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:25,867 INFO L93 Difference]: Finished difference Result 2789 states and 9626 transitions. [2020-10-16 12:30:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 12:30:25,867 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-10-16 12:30:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:25,873 INFO L225 Difference]: With dead ends: 2789 [2020-10-16 12:30:25,873 INFO L226 Difference]: Without dead ends: 2742 [2020-10-16 12:30:25,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:30:25,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2020-10-16 12:30:25,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1742. [2020-10-16 12:30:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1742 states. [2020-10-16 12:30:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 6049 transitions. [2020-10-16 12:30:25,902 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 6049 transitions. Word has length 25 [2020-10-16 12:30:25,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:25,902 INFO L481 AbstractCegarLoop]: Abstraction has 1742 states and 6049 transitions. [2020-10-16 12:30:25,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:30:25,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 6049 transitions. [2020-10-16 12:30:25,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:30:25,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:25,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:25,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-16 12:30:25,904 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:25,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:25,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1461991345, now seen corresponding path program 1 times [2020-10-16 12:30:25,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:25,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241926334] [2020-10-16 12:30:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:25,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241926334] [2020-10-16 12:30:25,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:25,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:25,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1666278697] [2020-10-16 12:30:25,999 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:26,002 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:26,010 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 48 transitions. [2020-10-16 12:30:26,011 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:26,035 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:26,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:30:26,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:26,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:30:26,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:26,036 INFO L87 Difference]: Start difference. First operand 1742 states and 6049 transitions. Second operand 9 states. [2020-10-16 12:30:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:26,231 INFO L93 Difference]: Finished difference Result 2359 states and 7868 transitions. [2020-10-16 12:30:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:26,232 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-16 12:30:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:26,237 INFO L225 Difference]: With dead ends: 2359 [2020-10-16 12:30:26,238 INFO L226 Difference]: Without dead ends: 2337 [2020-10-16 12:30:26,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:30:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2020-10-16 12:30:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 1741. [2020-10-16 12:30:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1741 states. [2020-10-16 12:30:26,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 6048 transitions. [2020-10-16 12:30:26,267 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 6048 transitions. Word has length 26 [2020-10-16 12:30:26,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:26,267 INFO L481 AbstractCegarLoop]: Abstraction has 1741 states and 6048 transitions. [2020-10-16 12:30:26,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:30:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 6048 transitions. [2020-10-16 12:30:26,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:30:26,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:26,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:26,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-16 12:30:26,272 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:26,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:26,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1932498543, now seen corresponding path program 2 times [2020-10-16 12:30:26,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:26,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753084091] [2020-10-16 12:30:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:26,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753084091] [2020-10-16 12:30:26,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:26,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:30:26,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [496777129] [2020-10-16 12:30:26,416 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:26,420 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:26,429 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 52 transitions. [2020-10-16 12:30:26,429 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:26,461 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:26,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:30:26,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:26,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:30:26,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:30:26,463 INFO L87 Difference]: Start difference. First operand 1741 states and 6048 transitions. Second operand 10 states. [2020-10-16 12:30:26,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:26,776 INFO L93 Difference]: Finished difference Result 2355 states and 7860 transitions. [2020-10-16 12:30:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:30:26,776 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-10-16 12:30:26,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:26,782 INFO L225 Difference]: With dead ends: 2355 [2020-10-16 12:30:26,782 INFO L226 Difference]: Without dead ends: 2333 [2020-10-16 12:30:26,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-16 12:30:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2020-10-16 12:30:26,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 1744. [2020-10-16 12:30:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1744 states. [2020-10-16 12:30:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 6055 transitions. [2020-10-16 12:30:26,811 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 6055 transitions. Word has length 26 [2020-10-16 12:30:26,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:26,812 INFO L481 AbstractCegarLoop]: Abstraction has 1744 states and 6055 transitions. [2020-10-16 12:30:26,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:30:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 6055 transitions. [2020-10-16 12:30:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:30:26,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:26,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:26,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-16 12:30:26,815 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:26,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1870528425, now seen corresponding path program 3 times [2020-10-16 12:30:26,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:26,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774112664] [2020-10-16 12:30:26,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:26,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:26,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774112664] [2020-10-16 12:30:26,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:26,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 12:30:26,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1837398587] [2020-10-16 12:30:26,995 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:26,999 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:27,006 INFO L258 McrAutomatonBuilder]: Finished intersection with 43 states and 60 transitions. [2020-10-16 12:30:27,006 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:27,087 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [318129#(not (= |ULTIMATE.start_main_#t~mem14| 4))] [2020-10-16 12:30:27,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 12:30:27,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:27,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 12:30:27,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:30:27,089 INFO L87 Difference]: Start difference. First operand 1744 states and 6055 transitions. Second operand 13 states. [2020-10-16 12:30:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:27,492 INFO L93 Difference]: Finished difference Result 1419 states and 4872 transitions. [2020-10-16 12:30:27,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:30:27,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-10-16 12:30:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:27,496 INFO L225 Difference]: With dead ends: 1419 [2020-10-16 12:30:27,496 INFO L226 Difference]: Without dead ends: 1331 [2020-10-16 12:30:27,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-10-16 12:30:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2020-10-16 12:30:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 885. [2020-10-16 12:30:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-16 12:30:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 3033 transitions. [2020-10-16 12:30:27,514 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 3033 transitions. Word has length 26 [2020-10-16 12:30:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:27,515 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 3033 transitions. [2020-10-16 12:30:27,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 12:30:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 3033 transitions. [2020-10-16 12:30:27,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 12:30:27,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:27,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:27,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-16 12:30:27,517 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:27,518 INFO L82 PathProgramCache]: Analyzing trace with hash -416507732, now seen corresponding path program 1 times [2020-10-16 12:30:27,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:27,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443236110] [2020-10-16 12:30:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:27,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443236110] [2020-10-16 12:30:27,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:27,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:27,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [353474069] [2020-10-16 12:30:27,612 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:27,620 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:27,652 INFO L258 McrAutomatonBuilder]: Finished intersection with 102 states and 189 transitions. [2020-10-16 12:30:27,652 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:27,799 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:27,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:30:27,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:27,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:30:27,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:27,801 INFO L87 Difference]: Start difference. First operand 885 states and 3033 transitions. Second operand 8 states. [2020-10-16 12:30:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:27,949 INFO L93 Difference]: Finished difference Result 885 states and 3029 transitions. [2020-10-16 12:30:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:27,949 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 12:30:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:27,952 INFO L225 Difference]: With dead ends: 885 [2020-10-16 12:30:27,952 INFO L226 Difference]: Without dead ends: 879 [2020-10-16 12:30:27,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:27,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-10-16 12:30:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 879. [2020-10-16 12:30:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-16 12:30:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 3010 transitions. [2020-10-16 12:30:27,974 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 3010 transitions. Word has length 41 [2020-10-16 12:30:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:27,974 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 3010 transitions. [2020-10-16 12:30:27,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:30:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 3010 transitions. [2020-10-16 12:30:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 12:30:27,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:27,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:27,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-16 12:30:27,976 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:27,977 INFO L82 PathProgramCache]: Analyzing trace with hash 829092404, now seen corresponding path program 1 times [2020-10-16 12:30:27,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:27,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834886890] [2020-10-16 12:30:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:28,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834886890] [2020-10-16 12:30:28,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:28,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:28,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1825528763] [2020-10-16 12:30:28,056 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:28,065 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:28,130 INFO L258 McrAutomatonBuilder]: Finished intersection with 106 states and 197 transitions. [2020-10-16 12:30:28,131 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:28,278 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:28,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:30:28,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:28,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:30:28,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:28,279 INFO L87 Difference]: Start difference. First operand 879 states and 3010 transitions. Second operand 8 states. [2020-10-16 12:30:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:28,415 INFO L93 Difference]: Finished difference Result 879 states and 3006 transitions. [2020-10-16 12:30:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:28,415 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 12:30:28,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:28,417 INFO L225 Difference]: With dead ends: 879 [2020-10-16 12:30:28,418 INFO L226 Difference]: Without dead ends: 819 [2020-10-16 12:30:28,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-10-16 12:30:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2020-10-16 12:30:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-10-16 12:30:28,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 2784 transitions. [2020-10-16 12:30:28,432 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 2784 transitions. Word has length 41 [2020-10-16 12:30:28,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:28,433 INFO L481 AbstractCegarLoop]: Abstraction has 819 states and 2784 transitions. [2020-10-16 12:30:28,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:30:28,433 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 2784 transitions. [2020-10-16 12:30:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 12:30:28,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:28,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:28,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-16 12:30:28,435 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 12:30:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:28,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1378914744, now seen corresponding path program 1 times [2020-10-16 12:30:28,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:28,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068036452] [2020-10-16 12:30:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:28,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:28,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:28,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:30:28,522 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:30:28,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-16 12:30:28,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:30:28 BasicIcfg [2020-10-16 12:30:28,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:30:28,685 INFO L168 Benchmark]: Toolchain (without parser) took 30966.11 ms. Allocated memory was 145.8 MB in the beginning and 881.3 MB in the end (delta: 735.6 MB). Free memory was 99.1 MB in the beginning and 430.5 MB in the end (delta: -331.4 MB). Peak memory consumption was 404.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:28,685 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:30:28,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1037.92 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 98.8 MB in the beginning and 122.1 MB in the end (delta: -23.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:28,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.75 ms. Allocated memory is still 202.9 MB. Free memory was 122.1 MB in the beginning and 119.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:28,686 INFO L168 Benchmark]: Boogie Preprocessor took 45.42 ms. Allocated memory is still 202.9 MB. Free memory was 119.4 MB in the beginning and 118.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:28,686 INFO L168 Benchmark]: RCFGBuilder took 552.55 ms. Allocated memory is still 202.9 MB. Free memory was 118.0 MB in the beginning and 91.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:28,687 INFO L168 Benchmark]: TraceAbstraction took 29229.42 ms. Allocated memory was 202.9 MB in the beginning and 881.3 MB in the end (delta: 678.4 MB). Free memory was 90.6 MB in the beginning and 430.5 MB in the end (delta: -339.9 MB). Peak memory consumption was 338.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:28,688 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1037.92 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 98.8 MB in the beginning and 122.1 MB in the end (delta: -23.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.75 ms. Allocated memory is still 202.9 MB. Free memory was 122.1 MB in the beginning and 119.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.42 ms. Allocated memory is still 202.9 MB. Free memory was 119.4 MB in the beginning and 118.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 552.55 ms. Allocated memory is still 202.9 MB. Free memory was 118.0 MB in the beginning and 91.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29229.42 ms. Allocated memory was 202.9 MB in the beginning and 881.3 MB in the end (delta: 678.4 MB). Free memory was 90.6 MB in the beginning and 430.5 MB in the end (delta: -339.9 MB). Peak memory consumption was 338.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2190 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 595 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 172 PlacesBefore, 101 PlacesAfterwards, 243 TransitionsBefore, 173 TransitionsAfterwards, 4038 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 47722 MoverChecksTotal - CounterExampleResult [Line: 1088]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1089] 0 char *v; [L1122] 0 pthread_t t; [L1123] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, v={0:0}] [L1107] 1 pthread_t t1, t2, t3, t4, t5; [L1108] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={0:0}] [L1109] 1 \read(t1) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={0:0}] [L1124] 0 \read(t) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={0:0}] [L1092] 2 v = malloc(sizeof(char)) [L1093] 2 return 0; [L1109] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=0, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1110] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1097] 3 v[0] = 'X' [L1098] 3 return 0; [L1111] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1112] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1113] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1114] 1 \read(t2) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1114] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1115] 1 \read(t3) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1097] 6 v[0] = 'X' [L1098] 6 return 0; [L1097] 5 v[0] = 'X' [L1098] 5 return 0; [L1102] 4 v[0] = 'Y' [L1103] 4 return 0; [L1115] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1116] 1 \read(t4) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1116] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1117] 1 \read(t5) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1117] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1124] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, v={6:0}] [L1125] 0 v[0] [L1088] COND TRUE 0 !expression [L1088] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, v={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.6s, OverallIterations: 36, TraceHistogramMax: 1, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 3778 SDtfs, 5965 SDslu, 11999 SDs, 0 SdLazy, 7276 SolverSat, 828 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 812 GetRequests, 377 SyntacticMatches, 21 SemanticMatches, 414 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4131occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 35 MinimizatonAttempts, 30816 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 815 NumberOfCodeBlocks, 815 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 739 ConstructedInterpolants, 0 QuantifiedInterpolants, 172316 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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...