/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:09:12,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:09:12,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:09:12,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 19:09:12,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:09:12,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:09:12,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:09:12,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:09:12,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:09:12,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:09:12,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:09:12,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:09:12,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:09:12,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:09:12,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:09:12,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:09:12,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 19:09:12,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:09:12,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:09:12,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:09:12,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:09:12,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:09:12,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:09:12,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:09:12,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:09:12,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:09:12,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:09:12,844 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:09:12,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:09:12,845 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:09:12,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:09:12,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:09:12,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:09:12,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:09:12,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:09:12,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:09:12,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:09:12,848 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:09:12,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:09:12,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:09:12,849 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:09:12,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:09:12,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:09:12,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:09:12,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:09:12,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:09:12,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:09:12,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:09:12,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:09:12,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:09:12,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:09:12,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:09:12,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:09:12,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:09:13,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:09:13,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:09:13,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:09:13,355 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:09:13,356 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:09:13,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-13 19:09:13,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060fd0b19/a1378e8c234945e3823ece3b3b829867/FLAG65330f35a [2021-10-13 19:09:14,051 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:09:14,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-13 19:09:14,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060fd0b19/a1378e8c234945e3823ece3b3b829867/FLAG65330f35a [2021-10-13 19:09:14,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060fd0b19/a1378e8c234945e3823ece3b3b829867 [2021-10-13 19:09:14,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:09:14,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:09:14,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:09:14,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:09:14,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:09:14,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a71fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14, skipping insertion in model container [2021-10-13 19:09:14,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:09:14,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:09:14,689 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[3410,3423] [2021-10-13 19:09:14,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:09:14,703 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:09:14,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[3410,3423] [2021-10-13 19:09:14,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:09:14,761 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:09:14,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14 WrapperNode [2021-10-13 19:09:14,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:09:14,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:09:14,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:09:14,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:09:14,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:09:14,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:09:14,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:09:14,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:09:14,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:09:14,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:09:14,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:09:14,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:09:14,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (1/1) ... [2021-10-13 19:09:14,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:09:14,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:09:15,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 19:09:15,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 19:09:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:09:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:09:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:09:15,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:09:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:09:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:09:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:09:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:09:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:09:15,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:09:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:09:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:09:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:09:15,121 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:09:15,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:09:15,825 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-13 19:09:15,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:15 BoogieIcfgContainer [2021-10-13 19:09:15,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:09:15,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:09:15,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:09:15,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:09:15,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:09:14" (1/3) ... [2021-10-13 19:09:15,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9fec3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:15, skipping insertion in model container [2021-10-13 19:09:15,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:14" (2/3) ... [2021-10-13 19:09:15,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9fec3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:15, skipping insertion in model container [2021-10-13 19:09:15,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:15" (3/3) ... [2021-10-13 19:09:15,839 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2021-10-13 19:09:15,845 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:09:15,846 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:09:15,846 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-13 19:09:15,846 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:09:15,911 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,913 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,922 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,922 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,922 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,923 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,923 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,923 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,924 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,924 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,925 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,925 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,925 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,925 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,925 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,926 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,928 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,930 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,930 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,931 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,932 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,932 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,932 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,933 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,935 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,936 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,936 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,937 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,937 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,937 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,937 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,938 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,939 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,940 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,940 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,940 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,940 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,944 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,944 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,945 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,945 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,946 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,946 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,946 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,946 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,951 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,952 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,953 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,957 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,961 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,962 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,962 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,962 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,962 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,962 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,963 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,963 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,963 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,963 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,963 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,964 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,966 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,966 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,968 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,968 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,969 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,969 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,969 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,969 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,969 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,970 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,970 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,970 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,970 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,970 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,971 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,971 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,971 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,971 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,971 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,971 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,972 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,972 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,972 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,972 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,972 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,973 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,973 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,974 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,974 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,974 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,974 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,974 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,975 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,975 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,975 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,975 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,975 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,976 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,976 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,982 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,987 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,987 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,988 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,988 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,988 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,989 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,990 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,995 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,997 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,997 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,997 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,998 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,998 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,998 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,998 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,998 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:15,999 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,000 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,001 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,001 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,001 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,001 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,001 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,001 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,002 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,002 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,002 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,002 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,002 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,003 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,004 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,008 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,008 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,012 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,012 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,013 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,013 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,013 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,013 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,013 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,014 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,014 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,014 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,022 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,022 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,022 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,023 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,023 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,023 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,023 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,024 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,024 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,024 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,024 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,031 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,031 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,031 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,031 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,032 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,032 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,038 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,039 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,039 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,040 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,043 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,044 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,044 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,044 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,044 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,045 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,045 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:16,065 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-13 19:09:16,146 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:09:16,163 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 19:09:16,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-13 19:09:16,207 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:09:16,231 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 263 transitions, 550 flow [2021-10-13 19:09:16,234 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 263 transitions, 550 flow [2021-10-13 19:09:16,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 263 transitions, 550 flow [2021-10-13 19:09:16,365 INFO L129 PetriNetUnfolder]: 20/260 cut-off events. [2021-10-13 19:09:16,365 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-13 19:09:16,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 260 events. 20/260 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 429 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 182. Up to 2 conditions per place. [2021-10-13 19:09:16,404 INFO L116 LiptonReduction]: Number of co-enabled transitions 21384 [2021-10-13 19:09:24,297 INFO L131 LiptonReduction]: Checked pairs total: 64020 [2021-10-13 19:09:24,297 INFO L133 LiptonReduction]: Total number of compositions: 249 [2021-10-13 19:09:24,308 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 84 transitions, 192 flow [2021-10-13 19:09:25,432 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20344 states, 20218 states have (on average 3.7051637155010386) internal successors, (74911), 20343 states have internal predecessors, (74911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 20344 states, 20218 states have (on average 3.7051637155010386) internal successors, (74911), 20343 states have internal predecessors, (74911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:09:25,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:25,509 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:09:25,510 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:25,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:25,517 INFO L82 PathProgramCache]: Analyzing trace with hash 780287375, now seen corresponding path program 1 times [2021-10-13 19:09:25,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:25,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798512811] [2021-10-13 19:09:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:25,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:25,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:25,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798512811] [2021-10-13 19:09:25,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798512811] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:25,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:25,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:25,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033568214] [2021-10-13 19:09:25,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:25,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:25,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:25,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:25,927 INFO L87 Difference]: Start difference. First operand has 20344 states, 20218 states have (on average 3.7051637155010386) internal successors, (74911), 20343 states have internal predecessors, (74911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:27,626 INFO L93 Difference]: Finished difference Result 49056 states and 177101 transitions. [2021-10-13 19:09:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:09:27,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:09:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:28,648 INFO L225 Difference]: With dead ends: 49056 [2021-10-13 19:09:28,648 INFO L226 Difference]: Without dead ends: 48996 [2021-10-13 19:09:28,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:09:28,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48996 states. [2021-10-13 19:09:30,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48996 to 23050. [2021-10-13 19:09:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23050 states, 22926 states have (on average 3.7226729477449183) internal successors, (85346), 23049 states have internal predecessors, (85346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23050 states to 23050 states and 85346 transitions. [2021-10-13 19:09:31,644 INFO L78 Accepts]: Start accepts. Automaton has 23050 states and 85346 transitions. Word has length 6 [2021-10-13 19:09:31,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:31,645 INFO L470 AbstractCegarLoop]: Abstraction has 23050 states and 85346 transitions. [2021-10-13 19:09:31,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 23050 states and 85346 transitions. [2021-10-13 19:09:31,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:09:31,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:31,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:09:31,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:09:31,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:31,651 INFO L82 PathProgramCache]: Analyzing trace with hash 780287173, now seen corresponding path program 1 times [2021-10-13 19:09:31,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:31,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991878304] [2021-10-13 19:09:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:31,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:31,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:31,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:31,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991878304] [2021-10-13 19:09:31,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991878304] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:31,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:31,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:09:31,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361180428] [2021-10-13 19:09:31,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:09:31,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:31,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:09:31,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:09:31,802 INFO L87 Difference]: Start difference. First operand 23050 states and 85346 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:32,482 INFO L93 Difference]: Finished difference Result 26574 states and 98588 transitions. [2021-10-13 19:09:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:09:32,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:09:32,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:32,966 INFO L225 Difference]: With dead ends: 26574 [2021-10-13 19:09:32,966 INFO L226 Difference]: Without dead ends: 26574 [2021-10-13 19:09:32,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26574 states. [2021-10-13 19:09:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26574 to 24722. [2021-10-13 19:09:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24722 states, 24598 states have (on average 3.73940970810635) internal successors, (91982), 24721 states have internal predecessors, (91982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24722 states to 24722 states and 91982 transitions. [2021-10-13 19:09:34,670 INFO L78 Accepts]: Start accepts. Automaton has 24722 states and 91982 transitions. Word has length 6 [2021-10-13 19:09:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:34,670 INFO L470 AbstractCegarLoop]: Abstraction has 24722 states and 91982 transitions. [2021-10-13 19:09:34,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 24722 states and 91982 transitions. [2021-10-13 19:09:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:09:34,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:34,673 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:34,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 19:09:34,673 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:34,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:34,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1768313786, now seen corresponding path program 1 times [2021-10-13 19:09:34,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:34,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906342105] [2021-10-13 19:09:34,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:34,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:34,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:34,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906342105] [2021-10-13 19:09:34,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906342105] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:34,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:34,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:09:34,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087753372] [2021-10-13 19:09:34,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:09:34,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:34,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:09:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:34,748 INFO L87 Difference]: Start difference. First operand 24722 states and 91982 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:36,837 INFO L93 Difference]: Finished difference Result 91108 states and 326528 transitions. [2021-10-13 19:09:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 19:09:36,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:09:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:38,269 INFO L225 Difference]: With dead ends: 91108 [2021-10-13 19:09:38,269 INFO L226 Difference]: Without dead ends: 91108 [2021-10-13 19:09:38,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2021-10-13 19:09:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91108 states. [2021-10-13 19:09:40,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91108 to 33080. [2021-10-13 19:09:40,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33080 states, 32956 states have (on average 3.796820002427479) internal successors, (125128), 33079 states have internal predecessors, (125128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:41,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33080 states to 33080 states and 125128 transitions. [2021-10-13 19:09:41,181 INFO L78 Accepts]: Start accepts. Automaton has 33080 states and 125128 transitions. Word has length 8 [2021-10-13 19:09:41,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:41,181 INFO L470 AbstractCegarLoop]: Abstraction has 33080 states and 125128 transitions. [2021-10-13 19:09:41,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:41,182 INFO L276 IsEmpty]: Start isEmpty. Operand 33080 states and 125128 transitions. [2021-10-13 19:09:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:09:41,186 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:41,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:41,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 19:09:41,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1768313988, now seen corresponding path program 1 times [2021-10-13 19:09:41,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:41,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869227563] [2021-10-13 19:09:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:41,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:41,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:41,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:41,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869227563] [2021-10-13 19:09:41,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869227563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:41,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:41,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:41,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824022483] [2021-10-13 19:09:41,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:41,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:41,320 INFO L87 Difference]: Start difference. First operand 33080 states and 125128 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:41,891 INFO L93 Difference]: Finished difference Result 43866 states and 169293 transitions. [2021-10-13 19:09:41,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:09:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:09:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:42,672 INFO L225 Difference]: With dead ends: 43866 [2021-10-13 19:09:42,673 INFO L226 Difference]: Without dead ends: 43866 [2021-10-13 19:09:42,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:42,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43866 states. [2021-10-13 19:09:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43866 to 41168. [2021-10-13 19:09:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41168 states, 41044 states have (on average 3.887632784329013) internal successors, (159564), 41167 states have internal predecessors, (159564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41168 states to 41168 states and 159564 transitions. [2021-10-13 19:09:44,838 INFO L78 Accepts]: Start accepts. Automaton has 41168 states and 159564 transitions. Word has length 8 [2021-10-13 19:09:44,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:44,838 INFO L470 AbstractCegarLoop]: Abstraction has 41168 states and 159564 transitions. [2021-10-13 19:09:44,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 41168 states and 159564 transitions. [2021-10-13 19:09:44,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:09:44,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:44,840 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:44,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 19:09:44,841 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:44,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:44,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2068639182, now seen corresponding path program 1 times [2021-10-13 19:09:44,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:44,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741570885] [2021-10-13 19:09:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:44,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:44,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:44,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741570885] [2021-10-13 19:09:44,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741570885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:44,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:44,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:09:44,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687185010] [2021-10-13 19:09:44,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:09:44,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:44,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:09:44,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:09:44,897 INFO L87 Difference]: Start difference. First operand 41168 states and 159564 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:46,580 INFO L93 Difference]: Finished difference Result 94898 states and 360387 transitions. [2021-10-13 19:09:46,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:09:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:09:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:47,820 INFO L225 Difference]: With dead ends: 94898 [2021-10-13 19:09:47,821 INFO L226 Difference]: Without dead ends: 94898 [2021-10-13 19:09:47,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 41.9ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:09:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94898 states. [2021-10-13 19:09:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94898 to 44536. [2021-10-13 19:09:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44536 states, 44412 states have (on average 3.892754210573719) internal successors, (172885), 44535 states have internal predecessors, (172885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44536 states to 44536 states and 172885 transitions. [2021-10-13 19:09:50,432 INFO L78 Accepts]: Start accepts. Automaton has 44536 states and 172885 transitions. Word has length 8 [2021-10-13 19:09:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:50,432 INFO L470 AbstractCegarLoop]: Abstraction has 44536 states and 172885 transitions. [2021-10-13 19:09:50,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 44536 states and 172885 transitions. [2021-10-13 19:09:50,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:09:50,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:50,434 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:50,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:09:50,435 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:50,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:50,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2068639384, now seen corresponding path program 1 times [2021-10-13 19:09:50,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:50,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367472851] [2021-10-13 19:09:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:50,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:50,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:50,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367472851] [2021-10-13 19:09:50,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367472851] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:50,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:50,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:09:50,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063632330] [2021-10-13 19:09:50,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:09:50,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:50,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:09:50,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:09:50,528 INFO L87 Difference]: Start difference. First operand 44536 states and 172885 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:52,732 INFO L93 Difference]: Finished difference Result 89060 states and 338540 transitions. [2021-10-13 19:09:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:09:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:09:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:53,599 INFO L225 Difference]: With dead ends: 89060 [2021-10-13 19:09:53,599 INFO L226 Difference]: Without dead ends: 89060 [2021-10-13 19:09:53,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 43.3ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:09:53,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89060 states. [2021-10-13 19:09:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89060 to 47846. [2021-10-13 19:09:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47846 states, 47722 states have (on average 3.8958970705335068) internal successors, (185920), 47845 states have internal predecessors, (185920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47846 states to 47846 states and 185920 transitions. [2021-10-13 19:09:56,298 INFO L78 Accepts]: Start accepts. Automaton has 47846 states and 185920 transitions. Word has length 8 [2021-10-13 19:09:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:56,298 INFO L470 AbstractCegarLoop]: Abstraction has 47846 states and 185920 transitions. [2021-10-13 19:09:56,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 47846 states and 185920 transitions. [2021-10-13 19:09:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:09:56,300 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:56,300 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:56,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 19:09:56,300 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:09:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:56,301 INFO L82 PathProgramCache]: Analyzing trace with hash -843448665, now seen corresponding path program 1 times [2021-10-13 19:09:56,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:56,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793768465] [2021-10-13 19:09:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:56,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:56,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:56,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793768465] [2021-10-13 19:09:56,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793768465] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:56,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:56,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:56,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285860019] [2021-10-13 19:09:56,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:56,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:56,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:56,359 INFO L87 Difference]: Start difference. First operand 47846 states and 185920 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:57,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:57,778 INFO L93 Difference]: Finished difference Result 62786 states and 247266 transitions. [2021-10-13 19:09:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:09:57,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:09:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:59,008 INFO L225 Difference]: With dead ends: 62786 [2021-10-13 19:09:59,009 INFO L226 Difference]: Without dead ends: 62786 [2021-10-13 19:09:59,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62786 states. [2021-10-13 19:10:00,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62786 to 54778. [2021-10-13 19:10:00,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54778 states, 54654 states have (on average 3.9392542174406264) internal successors, (215296), 54777 states have internal predecessors, (215296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54778 states to 54778 states and 215296 transitions. [2021-10-13 19:10:01,601 INFO L78 Accepts]: Start accepts. Automaton has 54778 states and 215296 transitions. Word has length 10 [2021-10-13 19:10:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:01,602 INFO L470 AbstractCegarLoop]: Abstraction has 54778 states and 215296 transitions. [2021-10-13 19:10:01,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 54778 states and 215296 transitions. [2021-10-13 19:10:01,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:10:01,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:01,605 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:01,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:10:01,605 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:01,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:01,606 INFO L82 PathProgramCache]: Analyzing trace with hash -843448667, now seen corresponding path program 1 times [2021-10-13 19:10:01,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:01,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494327470] [2021-10-13 19:10:01,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:01,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:01,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:01,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494327470] [2021-10-13 19:10:01,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494327470] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:01,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:01,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:10:01,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271877409] [2021-10-13 19:10:01,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:10:01,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:10:01,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:10:01,721 INFO L87 Difference]: Start difference. First operand 54778 states and 215296 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:03,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:03,341 INFO L93 Difference]: Finished difference Result 79660 states and 308477 transitions. [2021-10-13 19:10:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:10:03,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:10:03,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:04,245 INFO L225 Difference]: With dead ends: 79660 [2021-10-13 19:10:04,245 INFO L226 Difference]: Without dead ends: 79660 [2021-10-13 19:10:04,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:10:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79660 states. [2021-10-13 19:10:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79660 to 54836. [2021-10-13 19:10:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54836 states, 54712 states have (on average 3.9277123848515867) internal successors, (214893), 54835 states have internal predecessors, (214893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54836 states to 54836 states and 214893 transitions. [2021-10-13 19:10:07,784 INFO L78 Accepts]: Start accepts. Automaton has 54836 states and 214893 transitions. Word has length 10 [2021-10-13 19:10:07,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:07,785 INFO L470 AbstractCegarLoop]: Abstraction has 54836 states and 214893 transitions. [2021-10-13 19:10:07,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 54836 states and 214893 transitions. [2021-10-13 19:10:07,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:10:07,796 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:07,796 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:07,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:10:07,797 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:07,797 INFO L82 PathProgramCache]: Analyzing trace with hash -339849195, now seen corresponding path program 1 times [2021-10-13 19:10:07,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:07,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520914105] [2021-10-13 19:10:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:07,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:07,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:07,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520914105] [2021-10-13 19:10:07,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520914105] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:07,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:07,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:10:07,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085692332] [2021-10-13 19:10:07,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:10:07,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:10:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:10:07,937 INFO L87 Difference]: Start difference. First operand 54836 states and 214893 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:09,667 INFO L93 Difference]: Finished difference Result 105644 states and 405950 transitions. [2021-10-13 19:10:09,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:10:09,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:10:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:10,441 INFO L225 Difference]: With dead ends: 105644 [2021-10-13 19:10:10,441 INFO L226 Difference]: Without dead ends: 105644 [2021-10-13 19:10:10,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:10:10,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105644 states. [2021-10-13 19:10:13,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105644 to 51974. [2021-10-13 19:10:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51974 states, 51850 states have (on average 3.930337512054002) internal successors, (203788), 51973 states have internal predecessors, (203788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:14,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51974 states to 51974 states and 203788 transitions. [2021-10-13 19:10:14,020 INFO L78 Accepts]: Start accepts. Automaton has 51974 states and 203788 transitions. Word has length 10 [2021-10-13 19:10:14,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:14,021 INFO L470 AbstractCegarLoop]: Abstraction has 51974 states and 203788 transitions. [2021-10-13 19:10:14,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:14,021 INFO L276 IsEmpty]: Start isEmpty. Operand 51974 states and 203788 transitions. [2021-10-13 19:10:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:10:14,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:14,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:14,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:10:14,024 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:14,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:14,024 INFO L82 PathProgramCache]: Analyzing trace with hash 602399785, now seen corresponding path program 1 times [2021-10-13 19:10:14,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:14,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197304878] [2021-10-13 19:10:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:14,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:14,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:14,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:14,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197304878] [2021-10-13 19:10:14,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197304878] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:14,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:14,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:10:14,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552376366] [2021-10-13 19:10:14,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:10:14,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:14,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:10:14,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:10:14,139 INFO L87 Difference]: Start difference. First operand 51974 states and 203788 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:17,719 INFO L93 Difference]: Finished difference Result 161218 states and 601925 transitions. [2021-10-13 19:10:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 19:10:17,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:10:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:18,916 INFO L225 Difference]: With dead ends: 161218 [2021-10-13 19:10:18,917 INFO L226 Difference]: Without dead ends: 161218 [2021-10-13 19:10:18,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 175.9ms TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2021-10-13 19:10:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161218 states. [2021-10-13 19:10:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161218 to 48710. [2021-10-13 19:10:22,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48710 states, 48586 states have (on average 3.8955872061910837) internal successors, (189271), 48709 states have internal predecessors, (189271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48710 states to 48710 states and 189271 transitions. [2021-10-13 19:10:22,920 INFO L78 Accepts]: Start accepts. Automaton has 48710 states and 189271 transitions. Word has length 10 [2021-10-13 19:10:22,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:22,921 INFO L470 AbstractCegarLoop]: Abstraction has 48710 states and 189271 transitions. [2021-10-13 19:10:22,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 48710 states and 189271 transitions. [2021-10-13 19:10:22,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:10:22,922 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:22,922 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:22,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 19:10:22,923 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:22,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:22,924 INFO L82 PathProgramCache]: Analyzing trace with hash -443700866, now seen corresponding path program 1 times [2021-10-13 19:10:22,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:22,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320167570] [2021-10-13 19:10:22,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:22,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:22,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:22,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320167570] [2021-10-13 19:10:22,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320167570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:22,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:22,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:10:22,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337878208] [2021-10-13 19:10:22,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:10:22,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:22,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:10:22,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:10:22,988 INFO L87 Difference]: Start difference. First operand 48710 states and 189271 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:25,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:25,703 INFO L93 Difference]: Finished difference Result 95262 states and 364421 transitions. [2021-10-13 19:10:25,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:10:25,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:10:25,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:26,469 INFO L225 Difference]: With dead ends: 95262 [2021-10-13 19:10:26,469 INFO L226 Difference]: Without dead ends: 95262 [2021-10-13 19:10:26,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 42.1ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:10:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95262 states. [2021-10-13 19:10:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95262 to 54218. [2021-10-13 19:10:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54218 states, 54094 states have (on average 3.9188080008873443) internal successors, (211984), 54217 states have internal predecessors, (211984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54218 states to 54218 states and 211984 transitions. [2021-10-13 19:10:30,371 INFO L78 Accepts]: Start accepts. Automaton has 54218 states and 211984 transitions. Word has length 11 [2021-10-13 19:10:30,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:30,372 INFO L470 AbstractCegarLoop]: Abstraction has 54218 states and 211984 transitions. [2021-10-13 19:10:30,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 54218 states and 211984 transitions. [2021-10-13 19:10:30,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:10:30,374 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:30,374 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:30,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 19:10:30,375 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:30,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:30,376 INFO L82 PathProgramCache]: Analyzing trace with hash -443700868, now seen corresponding path program 1 times [2021-10-13 19:10:30,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:30,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510213680] [2021-10-13 19:10:30,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:30,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:30,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:30,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510213680] [2021-10-13 19:10:30,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510213680] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:30,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:30,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:10:30,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936918124] [2021-10-13 19:10:30,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:10:30,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:30,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:10:30,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:10:30,473 INFO L87 Difference]: Start difference. First operand 54218 states and 211984 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:34,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:34,260 INFO L93 Difference]: Finished difference Result 133366 states and 504616 transitions. [2021-10-13 19:10:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:10:34,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:10:34,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:35,528 INFO L225 Difference]: With dead ends: 133366 [2021-10-13 19:10:35,528 INFO L226 Difference]: Without dead ends: 133366 [2021-10-13 19:10:35,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 64.5ms TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:10:36,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133366 states. [2021-10-13 19:10:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133366 to 53236. [2021-10-13 19:10:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53236 states, 53112 states have (on average 3.8789162524476577) internal successors, (206017), 53235 states have internal predecessors, (206017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53236 states to 53236 states and 206017 transitions. [2021-10-13 19:10:39,651 INFO L78 Accepts]: Start accepts. Automaton has 53236 states and 206017 transitions. Word has length 11 [2021-10-13 19:10:39,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:39,651 INFO L470 AbstractCegarLoop]: Abstraction has 53236 states and 206017 transitions. [2021-10-13 19:10:39,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand 53236 states and 206017 transitions. [2021-10-13 19:10:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:10:39,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:39,654 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:39,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 19:10:39,654 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:39,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:39,655 INFO L82 PathProgramCache]: Analyzing trace with hash -379139712, now seen corresponding path program 1 times [2021-10-13 19:10:39,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:39,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105612762] [2021-10-13 19:10:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:39,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:39,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:39,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105612762] [2021-10-13 19:10:39,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105612762] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:39,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:39,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:10:39,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903799702] [2021-10-13 19:10:39,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:10:39,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:39,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:10:39,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:10:39,778 INFO L87 Difference]: Start difference. First operand 53236 states and 206017 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:41,301 INFO L93 Difference]: Finished difference Result 90830 states and 343878 transitions. [2021-10-13 19:10:41,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:10:41,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:10:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:42,526 INFO L225 Difference]: With dead ends: 90830 [2021-10-13 19:10:42,527 INFO L226 Difference]: Without dead ends: 90830 [2021-10-13 19:10:42,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:10:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90830 states. [2021-10-13 19:10:45,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90830 to 55506. [2021-10-13 19:10:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55506 states, 55382 states have (on average 3.8870029973637643) internal successors, (215270), 55505 states have internal predecessors, (215270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55506 states to 55506 states and 215270 transitions. [2021-10-13 19:10:45,441 INFO L78 Accepts]: Start accepts. Automaton has 55506 states and 215270 transitions. Word has length 11 [2021-10-13 19:10:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:45,441 INFO L470 AbstractCegarLoop]: Abstraction has 55506 states and 215270 transitions. [2021-10-13 19:10:45,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:45,441 INFO L276 IsEmpty]: Start isEmpty. Operand 55506 states and 215270 transitions. [2021-10-13 19:10:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:10:45,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:45,443 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:45,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 19:10:45,444 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:45,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:45,444 INFO L82 PathProgramCache]: Analyzing trace with hash -379139714, now seen corresponding path program 1 times [2021-10-13 19:10:45,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:45,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349673930] [2021-10-13 19:10:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:45,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:45,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:45,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349673930] [2021-10-13 19:10:45,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349673930] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:45,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:45,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:10:45,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790102397] [2021-10-13 19:10:45,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:10:45,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:10:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:10:45,501 INFO L87 Difference]: Start difference. First operand 55506 states and 215270 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:48,489 INFO L93 Difference]: Finished difference Result 120174 states and 457384 transitions. [2021-10-13 19:10:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:10:48,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:10:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:49,392 INFO L225 Difference]: With dead ends: 120174 [2021-10-13 19:10:49,392 INFO L226 Difference]: Without dead ends: 120174 [2021-10-13 19:10:49,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 62.8ms TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:10:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120174 states. [2021-10-13 19:10:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120174 to 65686. [2021-10-13 19:10:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65686 states, 65562 states have (on average 3.910054604801562) internal successors, (256351), 65685 states have internal predecessors, (256351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:53,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65686 states to 65686 states and 256351 transitions. [2021-10-13 19:10:53,548 INFO L78 Accepts]: Start accepts. Automaton has 65686 states and 256351 transitions. Word has length 11 [2021-10-13 19:10:53,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:53,548 INFO L470 AbstractCegarLoop]: Abstraction has 65686 states and 256351 transitions. [2021-10-13 19:10:53,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand 65686 states and 256351 transitions. [2021-10-13 19:10:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:10:53,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:53,552 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:53,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 19:10:53,552 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:53,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:53,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1665169359, now seen corresponding path program 1 times [2021-10-13 19:10:53,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:53,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783359223] [2021-10-13 19:10:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:53,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:53,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:53,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783359223] [2021-10-13 19:10:53,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783359223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:53,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:53,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:10:53,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410898164] [2021-10-13 19:10:53,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:10:53,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:53,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:10:53,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:10:53,612 INFO L87 Difference]: Start difference. First operand 65686 states and 256351 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:54,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:10:54,800 INFO L93 Difference]: Finished difference Result 62494 states and 242885 transitions. [2021-10-13 19:10:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:10:54,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:10:54,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:10:55,301 INFO L225 Difference]: With dead ends: 62494 [2021-10-13 19:10:55,301 INFO L226 Difference]: Without dead ends: 62494 [2021-10-13 19:10:55,302 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:10:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62494 states. [2021-10-13 19:10:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62494 to 62160. [2021-10-13 19:10:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62160 states, 62064 states have (on average 3.9023588553750965) internal successors, (242196), 62159 states have internal predecessors, (242196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62160 states to 62160 states and 242196 transitions. [2021-10-13 19:10:58,574 INFO L78 Accepts]: Start accepts. Automaton has 62160 states and 242196 transitions. Word has length 11 [2021-10-13 19:10:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:10:58,578 INFO L470 AbstractCegarLoop]: Abstraction has 62160 states and 242196 transitions. [2021-10-13 19:10:58,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:10:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 62160 states and 242196 transitions. [2021-10-13 19:10:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:10:58,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:10:58,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:10:58,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 19:10:58,598 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:10:58,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:10:58,601 INFO L82 PathProgramCache]: Analyzing trace with hash -871859833, now seen corresponding path program 1 times [2021-10-13 19:10:58,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:10:58,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003984649] [2021-10-13 19:10:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:10:58,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:10:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:10:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:10:58,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:10:58,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003984649] [2021-10-13 19:10:58,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003984649] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:10:58,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:10:58,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:10:58,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882583176] [2021-10-13 19:10:58,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:10:58,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:10:58,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:10:58,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:10:58,744 INFO L87 Difference]: Start difference. First operand 62160 states and 242196 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:04,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:04,865 INFO L93 Difference]: Finished difference Result 259570 states and 966159 transitions. [2021-10-13 19:11:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-13 19:11:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:11:04,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:07,309 INFO L225 Difference]: With dead ends: 259570 [2021-10-13 19:11:07,309 INFO L226 Difference]: Without dead ends: 259570 [2021-10-13 19:11:07,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 310.3ms TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 19:11:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259570 states. [2021-10-13 19:11:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259570 to 64538. [2021-10-13 19:11:15,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64538 states, 64442 states have (on average 3.887573321746687) internal successors, (250523), 64537 states have internal predecessors, (250523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 250523 transitions. [2021-10-13 19:11:15,543 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 250523 transitions. Word has length 12 [2021-10-13 19:11:15,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:15,544 INFO L470 AbstractCegarLoop]: Abstraction has 64538 states and 250523 transitions. [2021-10-13 19:11:15,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:15,544 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 250523 transitions. [2021-10-13 19:11:15,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:11:15,548 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:15,549 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:15,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 19:11:15,549 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:11:15,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:15,551 INFO L82 PathProgramCache]: Analyzing trace with hash -398441128, now seen corresponding path program 1 times [2021-10-13 19:11:15,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:15,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711556217] [2021-10-13 19:11:15,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:15,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:11:15,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:15,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711556217] [2021-10-13 19:11:15,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711556217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:11:15,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:11:15,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:11:15,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709159399] [2021-10-13 19:11:15,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:11:15,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:11:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:11:15,639 INFO L87 Difference]: Start difference. First operand 64538 states and 250523 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:17,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:17,627 INFO L93 Difference]: Finished difference Result 115380 states and 446289 transitions. [2021-10-13 19:11:17,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:11:17,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:11:17,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:19,131 INFO L225 Difference]: With dead ends: 115380 [2021-10-13 19:11:19,131 INFO L226 Difference]: Without dead ends: 115380 [2021-10-13 19:11:19,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:11:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115380 states. [2021-10-13 19:11:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115380 to 73702. [2021-10-13 19:11:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73702 states, 73606 states have (on average 3.9450859984240414) internal successors, (290382), 73701 states have internal predecessors, (290382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73702 states to 73702 states and 290382 transitions. [2021-10-13 19:11:24,450 INFO L78 Accepts]: Start accepts. Automaton has 73702 states and 290382 transitions. Word has length 12 [2021-10-13 19:11:24,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:24,451 INFO L470 AbstractCegarLoop]: Abstraction has 73702 states and 290382 transitions. [2021-10-13 19:11:24,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 73702 states and 290382 transitions. [2021-10-13 19:11:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:11:24,460 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:24,460 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:24,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 19:11:24,461 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:11:24,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:24,461 INFO L82 PathProgramCache]: Analyzing trace with hash -180249091, now seen corresponding path program 1 times [2021-10-13 19:11:24,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:24,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966961887] [2021-10-13 19:11:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:24,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:11:24,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:24,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966961887] [2021-10-13 19:11:24,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966961887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:11:24,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:11:24,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:11:24,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068016817] [2021-10-13 19:11:24,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:11:24,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:11:24,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:11:24,576 INFO L87 Difference]: Start difference. First operand 73702 states and 290382 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:27,138 INFO L93 Difference]: Finished difference Result 126146 states and 489200 transitions. [2021-10-13 19:11:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:11:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:11:27,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:29,005 INFO L225 Difference]: With dead ends: 126146 [2021-10-13 19:11:29,005 INFO L226 Difference]: Without dead ends: 126146 [2021-10-13 19:11:29,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:11:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126146 states. [2021-10-13 19:11:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126146 to 77612. [2021-10-13 19:11:33,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77612 states, 77516 states have (on average 3.9423989885959028) internal successors, (305599), 77611 states have internal predecessors, (305599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77612 states to 77612 states and 305599 transitions. [2021-10-13 19:11:34,692 INFO L78 Accepts]: Start accepts. Automaton has 77612 states and 305599 transitions. Word has length 12 [2021-10-13 19:11:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:34,693 INFO L470 AbstractCegarLoop]: Abstraction has 77612 states and 305599 transitions. [2021-10-13 19:11:34,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:34,693 INFO L276 IsEmpty]: Start isEmpty. Operand 77612 states and 305599 transitions. [2021-10-13 19:11:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:11:34,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:34,699 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:34,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 19:11:34,699 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:11:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:34,701 INFO L82 PathProgramCache]: Analyzing trace with hash -180249147, now seen corresponding path program 1 times [2021-10-13 19:11:34,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:34,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404634112] [2021-10-13 19:11:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:34,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:11:34,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:34,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404634112] [2021-10-13 19:11:34,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404634112] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:11:34,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:11:34,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:11:34,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599176807] [2021-10-13 19:11:34,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:11:34,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:34,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:11:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:11:34,756 INFO L87 Difference]: Start difference. First operand 77612 states and 305599 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:36,782 INFO L93 Difference]: Finished difference Result 116334 states and 447515 transitions. [2021-10-13 19:11:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:11:36,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:11:36,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:38,430 INFO L225 Difference]: With dead ends: 116334 [2021-10-13 19:11:38,430 INFO L226 Difference]: Without dead ends: 116334 [2021-10-13 19:11:38,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:11:38,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116334 states. [2021-10-13 19:11:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116334 to 81806. [2021-10-13 19:11:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81806 states, 81710 states have (on average 3.9342185778974423) internal successors, (321465), 81805 states have internal predecessors, (321465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81806 states to 81806 states and 321465 transitions. [2021-10-13 19:11:43,106 INFO L78 Accepts]: Start accepts. Automaton has 81806 states and 321465 transitions. Word has length 12 [2021-10-13 19:11:43,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:43,106 INFO L470 AbstractCegarLoop]: Abstraction has 81806 states and 321465 transitions. [2021-10-13 19:11:43,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 81806 states and 321465 transitions. [2021-10-13 19:11:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:11:43,114 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:43,115 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:43,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 19:11:43,115 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:11:43,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:43,115 INFO L82 PathProgramCache]: Analyzing trace with hash -80642325, now seen corresponding path program 1 times [2021-10-13 19:11:43,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:43,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210345087] [2021-10-13 19:11:43,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:43,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:11:43,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:43,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210345087] [2021-10-13 19:11:43,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210345087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:11:43,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:11:43,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:11:43,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694371967] [2021-10-13 19:11:43,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:11:43,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:43,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:11:43,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:11:43,174 INFO L87 Difference]: Start difference. First operand 81806 states and 321465 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:44,637 INFO L93 Difference]: Finished difference Result 76390 states and 300331 transitions. [2021-10-13 19:11:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:11:44,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:11:44,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:45,740 INFO L225 Difference]: With dead ends: 76390 [2021-10-13 19:11:45,741 INFO L226 Difference]: Without dead ends: 76390 [2021-10-13 19:11:45,742 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:11:45,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76390 states. [2021-10-13 19:11:48,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76390 to 76370. [2021-10-13 19:11:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76370 states, 76296 states have (on average 3.9359992660165672) internal successors, (300301), 76369 states have internal predecessors, (300301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76370 states to 76370 states and 300301 transitions. [2021-10-13 19:11:48,830 INFO L78 Accepts]: Start accepts. Automaton has 76370 states and 300301 transitions. Word has length 12 [2021-10-13 19:11:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:48,830 INFO L470 AbstractCegarLoop]: Abstraction has 76370 states and 300301 transitions. [2021-10-13 19:11:48,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 76370 states and 300301 transitions. [2021-10-13 19:11:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:11:48,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:48,836 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:48,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 19:11:48,837 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:11:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:48,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1491008336, now seen corresponding path program 1 times [2021-10-13 19:11:48,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:48,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590967550] [2021-10-13 19:11:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:48,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:11:48,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:48,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590967550] [2021-10-13 19:11:48,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590967550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:11:48,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:11:48,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:11:48,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256569245] [2021-10-13 19:11:48,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:11:48,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:11:48,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:11:48,890 INFO L87 Difference]: Start difference. First operand 76370 states and 300301 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:11:51,910 INFO L93 Difference]: Finished difference Result 135214 states and 521592 transitions. [2021-10-13 19:11:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:11:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:11:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:11:53,042 INFO L225 Difference]: With dead ends: 135214 [2021-10-13 19:11:53,043 INFO L226 Difference]: Without dead ends: 135214 [2021-10-13 19:11:53,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 92.7ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:11:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135214 states. [2021-10-13 19:11:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135214 to 77284. [2021-10-13 19:11:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77284 states, 77210 states have (on average 3.937028882269136) internal successors, (303978), 77283 states have internal predecessors, (303978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77284 states to 77284 states and 303978 transitions. [2021-10-13 19:11:58,316 INFO L78 Accepts]: Start accepts. Automaton has 77284 states and 303978 transitions. Word has length 13 [2021-10-13 19:11:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:11:58,316 INFO L470 AbstractCegarLoop]: Abstraction has 77284 states and 303978 transitions. [2021-10-13 19:11:58,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:11:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 77284 states and 303978 transitions. [2021-10-13 19:11:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:11:58,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:11:58,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:11:58,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 19:11:58,323 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:11:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:11:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash 750092280, now seen corresponding path program 1 times [2021-10-13 19:11:58,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:11:58,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217179166] [2021-10-13 19:11:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:11:58,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:11:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:11:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:11:58,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:11:58,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217179166] [2021-10-13 19:11:58,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217179166] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:11:58,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:11:58,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:11:58,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537185902] [2021-10-13 19:11:58,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:11:58,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:11:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:11:58,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:11:58,404 INFO L87 Difference]: Start difference. First operand 77284 states and 303978 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:01,702 INFO L93 Difference]: Finished difference Result 142594 states and 546565 transitions. [2021-10-13 19:12:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:12:01,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:12:01,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:02,982 INFO L225 Difference]: With dead ends: 142594 [2021-10-13 19:12:02,983 INFO L226 Difference]: Without dead ends: 142594 [2021-10-13 19:12:02,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 82.0ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:12:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142594 states. [2021-10-13 19:12:06,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142594 to 77362. [2021-10-13 19:12:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77362 states, 77288 states have (on average 3.9361737915329678) internal successors, (304219), 77361 states have internal predecessors, (304219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77362 states to 77362 states and 304219 transitions. [2021-10-13 19:12:08,683 INFO L78 Accepts]: Start accepts. Automaton has 77362 states and 304219 transitions. Word has length 13 [2021-10-13 19:12:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:08,684 INFO L470 AbstractCegarLoop]: Abstraction has 77362 states and 304219 transitions. [2021-10-13 19:12:08,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 77362 states and 304219 transitions. [2021-10-13 19:12:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:12:08,701 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:08,701 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:08,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 19:12:08,704 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:12:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:08,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1982428974, now seen corresponding path program 1 times [2021-10-13 19:12:08,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:08,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478764232] [2021-10-13 19:12:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:08,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:12:08,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:08,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478764232] [2021-10-13 19:12:08,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478764232] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:12:08,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:12:08,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:12:08,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556888359] [2021-10-13 19:12:08,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:12:08,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:08,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:12:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:12:08,867 INFO L87 Difference]: Start difference. First operand 77362 states and 304219 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:12,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:12,088 INFO L93 Difference]: Finished difference Result 154284 states and 591616 transitions. [2021-10-13 19:12:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 19:12:12,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:12:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:14,554 INFO L225 Difference]: With dead ends: 154284 [2021-10-13 19:12:14,554 INFO L226 Difference]: Without dead ends: 154284 [2021-10-13 19:12:14,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2021-10-13 19:12:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154284 states. [2021-10-13 19:12:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154284 to 80106. [2021-10-13 19:12:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80106 states, 80032 states have (on average 3.935863154738105) internal successors, (314995), 80105 states have internal predecessors, (314995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80106 states to 80106 states and 314995 transitions. [2021-10-13 19:12:21,491 INFO L78 Accepts]: Start accepts. Automaton has 80106 states and 314995 transitions. Word has length 15 [2021-10-13 19:12:21,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:21,491 INFO L470 AbstractCegarLoop]: Abstraction has 80106 states and 314995 transitions. [2021-10-13 19:12:21,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 80106 states and 314995 transitions. [2021-10-13 19:12:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:12:21,510 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:21,511 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:21,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 19:12:21,511 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:12:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:21,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1982428976, now seen corresponding path program 1 times [2021-10-13 19:12:21,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:21,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553998408] [2021-10-13 19:12:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:21,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:12:21,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:21,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553998408] [2021-10-13 19:12:21,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553998408] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:12:21,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:12:21,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:12:21,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987987189] [2021-10-13 19:12:21,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:12:21,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:12:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:12:21,562 INFO L87 Difference]: Start difference. First operand 80106 states and 314995 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:23,661 INFO L93 Difference]: Finished difference Result 115810 states and 451450 transitions. [2021-10-13 19:12:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:12:23,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:12:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:25,141 INFO L225 Difference]: With dead ends: 115810 [2021-10-13 19:12:25,141 INFO L226 Difference]: Without dead ends: 115810 [2021-10-13 19:12:25,141 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 49.3ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:12:25,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115810 states. [2021-10-13 19:12:29,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115810 to 82302. [2021-10-13 19:12:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82302 states, 82228 states have (on average 3.9476698934669456) internal successors, (324609), 82301 states have internal predecessors, (324609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82302 states to 82302 states and 324609 transitions. [2021-10-13 19:12:30,182 INFO L78 Accepts]: Start accepts. Automaton has 82302 states and 324609 transitions. Word has length 15 [2021-10-13 19:12:30,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:30,182 INFO L470 AbstractCegarLoop]: Abstraction has 82302 states and 324609 transitions. [2021-10-13 19:12:30,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 82302 states and 324609 transitions. [2021-10-13 19:12:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:12:30,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:30,192 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:30,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 19:12:30,193 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:12:30,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:30,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1025193403, now seen corresponding path program 1 times [2021-10-13 19:12:30,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:30,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069392573] [2021-10-13 19:12:30,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:30,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:12:30,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:30,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069392573] [2021-10-13 19:12:30,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069392573] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:12:30,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:12:30,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:12:30,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521272872] [2021-10-13 19:12:30,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:12:30,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:30,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:12:30,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:12:30,216 INFO L87 Difference]: Start difference. First operand 82302 states and 324609 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:31,718 INFO L93 Difference]: Finished difference Result 82236 states and 323107 transitions. [2021-10-13 19:12:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:12:31,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:12:31,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:32,775 INFO L225 Difference]: With dead ends: 82236 [2021-10-13 19:12:32,776 INFO L226 Difference]: Without dead ends: 82236 [2021-10-13 19:12:32,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:12:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82236 states. [2021-10-13 19:12:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82236 to 80290. [2021-10-13 19:12:35,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80290 states, 80216 states have (on average 3.9431410192480305) internal successors, (316303), 80289 states have internal predecessors, (316303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80290 states to 80290 states and 316303 transitions. [2021-10-13 19:12:37,103 INFO L78 Accepts]: Start accepts. Automaton has 80290 states and 316303 transitions. Word has length 15 [2021-10-13 19:12:37,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:37,107 INFO L470 AbstractCegarLoop]: Abstraction has 80290 states and 316303 transitions. [2021-10-13 19:12:37,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 80290 states and 316303 transitions. [2021-10-13 19:12:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:12:37,136 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:37,138 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:37,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 19:12:37,138 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:12:37,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:37,139 INFO L82 PathProgramCache]: Analyzing trace with hash -585927000, now seen corresponding path program 1 times [2021-10-13 19:12:37,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:37,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821611292] [2021-10-13 19:12:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:37,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:12:37,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:37,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821611292] [2021-10-13 19:12:37,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821611292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:12:37,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:12:37,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:12:37,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652391611] [2021-10-13 19:12:37,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:12:37,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:37,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:12:37,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:12:37,267 INFO L87 Difference]: Start difference. First operand 80290 states and 316303 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:40,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:40,866 INFO L93 Difference]: Finished difference Result 164808 states and 636281 transitions. [2021-10-13 19:12:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:12:40,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:12:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:42,314 INFO L225 Difference]: With dead ends: 164808 [2021-10-13 19:12:42,315 INFO L226 Difference]: Without dead ends: 164808 [2021-10-13 19:12:42,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 143.6ms TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:12:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164808 states. [2021-10-13 19:12:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164808 to 82606. [2021-10-13 19:12:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82606 states, 82532 states have (on average 3.9416226433383414) internal successors, (325310), 82605 states have internal predecessors, (325310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82606 states to 82606 states and 325310 transitions. [2021-10-13 19:12:48,477 INFO L78 Accepts]: Start accepts. Automaton has 82606 states and 325310 transitions. Word has length 15 [2021-10-13 19:12:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:12:48,478 INFO L470 AbstractCegarLoop]: Abstraction has 82606 states and 325310 transitions. [2021-10-13 19:12:48,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 82606 states and 325310 transitions. [2021-10-13 19:12:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:12:48,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:12:48,488 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:12:48,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 19:12:48,488 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:12:48,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:12:48,488 INFO L82 PathProgramCache]: Analyzing trace with hash -585927202, now seen corresponding path program 1 times [2021-10-13 19:12:48,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:12:48,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646676445] [2021-10-13 19:12:48,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:12:48,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:12:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:12:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:12:48,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:12:48,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646676445] [2021-10-13 19:12:48,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646676445] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:12:48,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:12:48,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:12:48,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99458646] [2021-10-13 19:12:48,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:12:48,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:12:48,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:12:48,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:12:48,554 INFO L87 Difference]: Start difference. First operand 82606 states and 325310 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:12:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:12:52,312 INFO L93 Difference]: Finished difference Result 143828 states and 553090 transitions. [2021-10-13 19:12:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:12:52,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:12:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:12:54,634 INFO L225 Difference]: With dead ends: 143828 [2021-10-13 19:12:54,649 INFO L226 Difference]: Without dead ends: 143828 [2021-10-13 19:12:54,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-13 19:12:55,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143828 states. [2021-10-13 19:13:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143828 to 80680. [2021-10-13 19:13:00,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80680 states, 80606 states have (on average 3.937312358881473) internal successors, (317371), 80679 states have internal predecessors, (317371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:01,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80680 states to 80680 states and 317371 transitions. [2021-10-13 19:13:01,571 INFO L78 Accepts]: Start accepts. Automaton has 80680 states and 317371 transitions. Word has length 15 [2021-10-13 19:13:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:01,571 INFO L470 AbstractCegarLoop]: Abstraction has 80680 states and 317371 transitions. [2021-10-13 19:13:01,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 80680 states and 317371 transitions. [2021-10-13 19:13:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:13:01,586 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:01,587 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:01,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 19:13:01,587 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:13:01,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:01,588 INFO L82 PathProgramCache]: Analyzing trace with hash 709531306, now seen corresponding path program 1 times [2021-10-13 19:13:01,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:01,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057782911] [2021-10-13 19:13:01,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:01,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:13:01,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:01,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057782911] [2021-10-13 19:13:01,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057782911] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:13:01,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:13:01,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:13:01,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601137744] [2021-10-13 19:13:01,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:13:01,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:13:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:13:01,650 INFO L87 Difference]: Start difference. First operand 80680 states and 317371 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:04,023 INFO L93 Difference]: Finished difference Result 150694 states and 584087 transitions. [2021-10-13 19:13:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:13:04,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:13:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:06,030 INFO L225 Difference]: With dead ends: 150694 [2021-10-13 19:13:06,030 INFO L226 Difference]: Without dead ends: 150694 [2021-10-13 19:13:06,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:13:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150694 states. [2021-10-13 19:13:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150694 to 81736. [2021-10-13 19:13:10,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81736 states, 81662 states have (on average 3.9408904998652985) internal successors, (321821), 81735 states have internal predecessors, (321821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81736 states to 81736 states and 321821 transitions. [2021-10-13 19:13:11,670 INFO L78 Accepts]: Start accepts. Automaton has 81736 states and 321821 transitions. Word has length 15 [2021-10-13 19:13:11,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:11,670 INFO L470 AbstractCegarLoop]: Abstraction has 81736 states and 321821 transitions. [2021-10-13 19:13:11,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:11,671 INFO L276 IsEmpty]: Start isEmpty. Operand 81736 states and 321821 transitions. [2021-10-13 19:13:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:13:11,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:11,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:11,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-13 19:13:11,689 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:13:11,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:11,690 INFO L82 PathProgramCache]: Analyzing trace with hash 927723231, now seen corresponding path program 1 times [2021-10-13 19:13:11,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:11,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504589609] [2021-10-13 19:13:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:11,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:13:11,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:11,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504589609] [2021-10-13 19:13:11,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504589609] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:13:11,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:13:11,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:13:11,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151232147] [2021-10-13 19:13:11,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:13:11,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:13:11,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:13:11,733 INFO L87 Difference]: Start difference. First operand 81736 states and 321821 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:13,917 INFO L93 Difference]: Finished difference Result 126638 states and 490638 transitions. [2021-10-13 19:13:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:13:13,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:13:13,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:15,596 INFO L225 Difference]: With dead ends: 126638 [2021-10-13 19:13:15,596 INFO L226 Difference]: Without dead ends: 126638 [2021-10-13 19:13:15,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:13:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126638 states. [2021-10-13 19:13:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126638 to 83486. [2021-10-13 19:13:20,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83486 states, 83412 states have (on average 3.9489641778161415) internal successors, (329391), 83485 states have internal predecessors, (329391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83486 states to 83486 states and 329391 transitions. [2021-10-13 19:13:20,786 INFO L78 Accepts]: Start accepts. Automaton has 83486 states and 329391 transitions. Word has length 15 [2021-10-13 19:13:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:20,786 INFO L470 AbstractCegarLoop]: Abstraction has 83486 states and 329391 transitions. [2021-10-13 19:13:20,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 83486 states and 329391 transitions. [2021-10-13 19:13:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:13:21,601 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:21,601 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:21,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-13 19:13:21,605 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:13:21,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:21,606 INFO L82 PathProgramCache]: Analyzing trace with hash -721029009, now seen corresponding path program 1 times [2021-10-13 19:13:21,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:21,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808379556] [2021-10-13 19:13:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:21,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:13:21,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:21,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808379556] [2021-10-13 19:13:21,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808379556] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:13:21,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:13:21,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:13:21,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192270150] [2021-10-13 19:13:21,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:13:21,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:13:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:13:21,698 INFO L87 Difference]: Start difference. First operand 83486 states and 329391 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:26,601 INFO L93 Difference]: Finished difference Result 223234 states and 845202 transitions. [2021-10-13 19:13:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-13 19:13:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:13:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:29,496 INFO L225 Difference]: With dead ends: 223234 [2021-10-13 19:13:29,496 INFO L226 Difference]: Without dead ends: 223234 [2021-10-13 19:13:29,497 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 343.9ms TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 19:13:30,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223234 states. [2021-10-13 19:13:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223234 to 79134. [2021-10-13 19:13:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79134 states, 79060 states have (on average 3.9221224386541866) internal successors, (310083), 79133 states have internal predecessors, (310083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79134 states to 79134 states and 310083 transitions. [2021-10-13 19:13:36,073 INFO L78 Accepts]: Start accepts. Automaton has 79134 states and 310083 transitions. Word has length 15 [2021-10-13 19:13:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:36,073 INFO L470 AbstractCegarLoop]: Abstraction has 79134 states and 310083 transitions. [2021-10-13 19:13:36,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 79134 states and 310083 transitions. [2021-10-13 19:13:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 19:13:36,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:36,083 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:36,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-13 19:13:36,084 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:13:36,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:36,085 INFO L82 PathProgramCache]: Analyzing trace with hash 116330873, now seen corresponding path program 1 times [2021-10-13 19:13:36,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:36,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063149507] [2021-10-13 19:13:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:36,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:13:36,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:36,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063149507] [2021-10-13 19:13:36,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063149507] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:13:36,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:13:36,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:13:36,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936346230] [2021-10-13 19:13:36,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:13:36,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:13:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:13:36,145 INFO L87 Difference]: Start difference. First operand 79134 states and 310083 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:39,036 INFO L93 Difference]: Finished difference Result 132072 states and 509099 transitions. [2021-10-13 19:13:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:13:39,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 19:13:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:40,210 INFO L225 Difference]: With dead ends: 132072 [2021-10-13 19:13:40,210 INFO L226 Difference]: Without dead ends: 132072 [2021-10-13 19:13:40,212 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 63.0ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:13:41,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132072 states. [2021-10-13 19:13:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132072 to 80582. [2021-10-13 19:13:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80582 states, 80508 states have (on average 3.929944850201222) internal successors, (316392), 80581 states have internal predecessors, (316392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80582 states to 80582 states and 316392 transitions. [2021-10-13 19:13:45,173 INFO L78 Accepts]: Start accepts. Automaton has 80582 states and 316392 transitions. Word has length 15 [2021-10-13 19:13:45,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:13:45,174 INFO L470 AbstractCegarLoop]: Abstraction has 80582 states and 316392 transitions. [2021-10-13 19:13:45,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 80582 states and 316392 transitions. [2021-10-13 19:13:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:13:45,189 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:13:45,189 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:13:45,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-13 19:13:45,190 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:13:45,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:13:45,190 INFO L82 PathProgramCache]: Analyzing trace with hash -2062345677, now seen corresponding path program 1 times [2021-10-13 19:13:45,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:13:45,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291220060] [2021-10-13 19:13:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:13:45,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:13:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:13:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:13:45,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:13:45,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291220060] [2021-10-13 19:13:45,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291220060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:13:45,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:13:45,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:13:45,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93095354] [2021-10-13 19:13:45,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:13:45,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:13:45,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:13:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:13:45,232 INFO L87 Difference]: Start difference. First operand 80582 states and 316392 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:13:52,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:13:52,550 INFO L93 Difference]: Finished difference Result 274034 states and 1039593 transitions. [2021-10-13 19:13:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:13:52,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:13:52,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:13:55,974 INFO L225 Difference]: With dead ends: 274034 [2021-10-13 19:13:55,974 INFO L226 Difference]: Without dead ends: 274034 [2021-10-13 19:13:55,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:13:56,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274034 states. [2021-10-13 19:14:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274034 to 85514. [2021-10-13 19:14:03,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85514 states, 85440 states have (on average 3.9273993445692885) internal successors, (335557), 85513 states have internal predecessors, (335557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85514 states to 85514 states and 335557 transitions. [2021-10-13 19:14:04,431 INFO L78 Accepts]: Start accepts. Automaton has 85514 states and 335557 transitions. Word has length 16 [2021-10-13 19:14:04,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:04,431 INFO L470 AbstractCegarLoop]: Abstraction has 85514 states and 335557 transitions. [2021-10-13 19:14:04,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 85514 states and 335557 transitions. [2021-10-13 19:14:04,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:04,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:04,447 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:04,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-13 19:14:04,447 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:04,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1844153752, now seen corresponding path program 1 times [2021-10-13 19:14:04,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:04,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110248694] [2021-10-13 19:14:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:04,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:04,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:04,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110248694] [2021-10-13 19:14:04,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110248694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:04,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:04,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:14:04,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046193275] [2021-10-13 19:14:04,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:14:04,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:04,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:14:04,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:14:04,510 INFO L87 Difference]: Start difference. First operand 85514 states and 335557 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:07,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:07,439 INFO L93 Difference]: Finished difference Result 133144 states and 494453 transitions. [2021-10-13 19:14:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:14:07,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:07,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:08,431 INFO L225 Difference]: With dead ends: 133144 [2021-10-13 19:14:08,431 INFO L226 Difference]: Without dead ends: 133144 [2021-10-13 19:14:08,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:14:08,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133144 states. [2021-10-13 19:14:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133144 to 68172. [2021-10-13 19:14:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68172 states, 68098 states have (on average 3.8305823959587655) internal successors, (260855), 68171 states have internal predecessors, (260855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68172 states to 68172 states and 260855 transitions. [2021-10-13 19:14:12,888 INFO L78 Accepts]: Start accepts. Automaton has 68172 states and 260855 transitions. Word has length 16 [2021-10-13 19:14:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:12,888 INFO L470 AbstractCegarLoop]: Abstraction has 68172 states and 260855 transitions. [2021-10-13 19:14:12,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 68172 states and 260855 transitions. [2021-10-13 19:14:12,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:12,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:12,899 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:12,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-13 19:14:12,900 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:12,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:12,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1447269180, now seen corresponding path program 2 times [2021-10-13 19:14:12,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:12,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653562456] [2021-10-13 19:14:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:12,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:12,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:12,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653562456] [2021-10-13 19:14:12,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653562456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:12,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:12,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:14:12,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338234495] [2021-10-13 19:14:12,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:14:12,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:14:12,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:14:12,933 INFO L87 Difference]: Start difference. First operand 68172 states and 260855 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:15,303 INFO L93 Difference]: Finished difference Result 106228 states and 406287 transitions. [2021-10-13 19:14:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:14:15,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:15,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:16,228 INFO L225 Difference]: With dead ends: 106228 [2021-10-13 19:14:16,229 INFO L226 Difference]: Without dead ends: 106228 [2021-10-13 19:14:16,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:14:16,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106228 states. [2021-10-13 19:14:19,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106228 to 68172. [2021-10-13 19:14:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68172 states, 68098 states have (on average 3.8274986049516873) internal successors, (260645), 68171 states have internal predecessors, (260645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:20,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68172 states to 68172 states and 260645 transitions. [2021-10-13 19:14:20,068 INFO L78 Accepts]: Start accepts. Automaton has 68172 states and 260645 transitions. Word has length 16 [2021-10-13 19:14:20,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:20,068 INFO L470 AbstractCegarLoop]: Abstraction has 68172 states and 260645 transitions. [2021-10-13 19:14:20,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:20,068 INFO L276 IsEmpty]: Start isEmpty. Operand 68172 states and 260645 transitions. [2021-10-13 19:14:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:20,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:20,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:20,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-13 19:14:20,083 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:20,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1327790925, now seen corresponding path program 1 times [2021-10-13 19:14:20,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:20,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302823180] [2021-10-13 19:14:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:20,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:20,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:20,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302823180] [2021-10-13 19:14:20,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302823180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:20,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:20,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:14:20,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526813005] [2021-10-13 19:14:20,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:14:20,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:20,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:14:20,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:14:20,129 INFO L87 Difference]: Start difference. First operand 68172 states and 260645 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:22,221 INFO L93 Difference]: Finished difference Result 101632 states and 376829 transitions. [2021-10-13 19:14:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:14:22,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:22,873 INFO L225 Difference]: With dead ends: 101632 [2021-10-13 19:14:22,873 INFO L226 Difference]: Without dead ends: 101632 [2021-10-13 19:14:22,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 83.4ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:14:23,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101632 states. [2021-10-13 19:14:26,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101632 to 73746. [2021-10-13 19:14:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73746 states, 73672 states have (on average 3.7739711152133784) internal successors, (278036), 73745 states have internal predecessors, (278036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73746 states to 73746 states and 278036 transitions. [2021-10-13 19:14:26,589 INFO L78 Accepts]: Start accepts. Automaton has 73746 states and 278036 transitions. Word has length 16 [2021-10-13 19:14:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:26,589 INFO L470 AbstractCegarLoop]: Abstraction has 73746 states and 278036 transitions. [2021-10-13 19:14:26,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 73746 states and 278036 transitions. [2021-10-13 19:14:27,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:27,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:27,218 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:27,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-13 19:14:27,219 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:27,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1682494957, now seen corresponding path program 1 times [2021-10-13 19:14:27,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:27,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214262939] [2021-10-13 19:14:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:27,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:27,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:27,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214262939] [2021-10-13 19:14:27,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214262939] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:27,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:27,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:14:27,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274814125] [2021-10-13 19:14:27,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:14:27,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:27,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:14:27,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:14:27,325 INFO L87 Difference]: Start difference. First operand 73746 states and 278036 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:30,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:30,292 INFO L93 Difference]: Finished difference Result 172748 states and 640095 transitions. [2021-10-13 19:14:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-13 19:14:30,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:30,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:32,473 INFO L225 Difference]: With dead ends: 172748 [2021-10-13 19:14:32,473 INFO L226 Difference]: Without dead ends: 172748 [2021-10-13 19:14:32,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 224.4ms TimeCoverageRelationStatistics Valid=257, Invalid=933, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 19:14:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172748 states. [2021-10-13 19:14:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172748 to 77148. [2021-10-13 19:14:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77148 states, 77074 states have (on average 3.7714015102369154) internal successors, (290677), 77147 states have internal predecessors, (290677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77148 states to 77148 states and 290677 transitions. [2021-10-13 19:14:38,311 INFO L78 Accepts]: Start accepts. Automaton has 77148 states and 290677 transitions. Word has length 16 [2021-10-13 19:14:38,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:38,311 INFO L470 AbstractCegarLoop]: Abstraction has 77148 states and 290677 transitions. [2021-10-13 19:14:38,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:38,311 INFO L276 IsEmpty]: Start isEmpty. Operand 77148 states and 290677 transitions. [2021-10-13 19:14:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:38,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:38,326 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:38,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-13 19:14:38,326 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:38,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:38,327 INFO L82 PathProgramCache]: Analyzing trace with hash -48120344, now seen corresponding path program 3 times [2021-10-13 19:14:38,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:38,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822271449] [2021-10-13 19:14:38,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:38,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:38,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:38,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822271449] [2021-10-13 19:14:38,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822271449] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:38,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:38,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:14:38,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887718909] [2021-10-13 19:14:38,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:14:38,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:38,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:14:38,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:14:38,361 INFO L87 Difference]: Start difference. First operand 77148 states and 290677 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:40,371 INFO L93 Difference]: Finished difference Result 105460 states and 379797 transitions. [2021-10-13 19:14:40,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:14:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:41,059 INFO L225 Difference]: With dead ends: 105460 [2021-10-13 19:14:41,060 INFO L226 Difference]: Without dead ends: 105460 [2021-10-13 19:14:41,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:14:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105460 states. [2021-10-13 19:14:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105460 to 59864. [2021-10-13 19:14:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59864 states, 59800 states have (on average 3.6340802675585286) internal successors, (217318), 59863 states have internal predecessors, (217318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59864 states to 59864 states and 217318 transitions. [2021-10-13 19:14:45,834 INFO L78 Accepts]: Start accepts. Automaton has 59864 states and 217318 transitions. Word has length 16 [2021-10-13 19:14:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:45,835 INFO L470 AbstractCegarLoop]: Abstraction has 59864 states and 217318 transitions. [2021-10-13 19:14:45,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 59864 states and 217318 transitions. [2021-10-13 19:14:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:45,846 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:45,846 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:45,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-13 19:14:45,847 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:45,849 INFO L82 PathProgramCache]: Analyzing trace with hash -715980733, now seen corresponding path program 1 times [2021-10-13 19:14:45,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:45,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183074093] [2021-10-13 19:14:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:45,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:45,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:45,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183074093] [2021-10-13 19:14:45,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183074093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:45,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:45,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:14:45,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90921775] [2021-10-13 19:14:45,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:14:45,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:45,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:14:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:14:45,992 INFO L87 Difference]: Start difference. First operand 59864 states and 217318 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:47,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:47,656 INFO L93 Difference]: Finished difference Result 74168 states and 265739 transitions. [2021-10-13 19:14:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:14:47,657 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:48,136 INFO L225 Difference]: With dead ends: 74168 [2021-10-13 19:14:48,136 INFO L226 Difference]: Without dead ends: 74168 [2021-10-13 19:14:48,137 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 156.1ms TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2021-10-13 19:14:48,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74168 states. [2021-10-13 19:14:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74168 to 60962. [2021-10-13 19:14:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60962 states, 60898 states have (on average 3.637410095569641) internal successors, (221511), 60961 states have internal predecessors, (221511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60962 states to 60962 states and 221511 transitions. [2021-10-13 19:14:50,634 INFO L78 Accepts]: Start accepts. Automaton has 60962 states and 221511 transitions. Word has length 16 [2021-10-13 19:14:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:50,634 INFO L470 AbstractCegarLoop]: Abstraction has 60962 states and 221511 transitions. [2021-10-13 19:14:50,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:50,634 INFO L276 IsEmpty]: Start isEmpty. Operand 60962 states and 221511 transitions. [2021-10-13 19:14:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:50,644 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:50,644 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:50,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-13 19:14:50,644 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:50,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:50,645 INFO L82 PathProgramCache]: Analyzing trace with hash -194952509, now seen corresponding path program 1 times [2021-10-13 19:14:50,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:50,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387225017] [2021-10-13 19:14:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:50,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:50,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:50,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387225017] [2021-10-13 19:14:50,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387225017] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:50,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:50,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:14:50,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9550959] [2021-10-13 19:14:50,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:14:50,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:50,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:14:50,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:14:50,705 INFO L87 Difference]: Start difference. First operand 60962 states and 221511 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:14:53,535 INFO L93 Difference]: Finished difference Result 106502 states and 383161 transitions. [2021-10-13 19:14:53,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 19:14:53,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:14:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:14:54,353 INFO L225 Difference]: With dead ends: 106502 [2021-10-13 19:14:54,353 INFO L226 Difference]: Without dead ends: 106502 [2021-10-13 19:14:54,353 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 193.6ms TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2021-10-13 19:14:54,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106502 states. [2021-10-13 19:14:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106502 to 61644. [2021-10-13 19:14:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61644 states, 61580 states have (on average 3.6384540435206234) internal successors, (224056), 61643 states have internal predecessors, (224056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61644 states to 61644 states and 224056 transitions. [2021-10-13 19:14:57,948 INFO L78 Accepts]: Start accepts. Automaton has 61644 states and 224056 transitions. Word has length 16 [2021-10-13 19:14:57,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:14:57,948 INFO L470 AbstractCegarLoop]: Abstraction has 61644 states and 224056 transitions. [2021-10-13 19:14:57,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:14:57,949 INFO L276 IsEmpty]: Start isEmpty. Operand 61644 states and 224056 transitions. [2021-10-13 19:14:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:14:57,967 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:14:57,967 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:14:57,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-13 19:14:57,967 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:14:57,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:14:57,968 INFO L82 PathProgramCache]: Analyzing trace with hash -976000023, now seen corresponding path program 1 times [2021-10-13 19:14:57,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:14:57,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129569561] [2021-10-13 19:14:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:14:57,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:14:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:14:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:14:58,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:14:58,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129569561] [2021-10-13 19:14:58,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129569561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:14:58,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:14:58,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:14:58,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815131400] [2021-10-13 19:14:58,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:14:58,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:14:58,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:14:58,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:14:58,047 INFO L87 Difference]: Start difference. First operand 61644 states and 224056 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:01,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:01,992 INFO L93 Difference]: Finished difference Result 150972 states and 532121 transitions. [2021-10-13 19:15:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-13 19:15:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:15:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:03,108 INFO L225 Difference]: With dead ends: 150972 [2021-10-13 19:15:03,108 INFO L226 Difference]: Without dead ends: 150972 [2021-10-13 19:15:03,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 477.3ms TimeCoverageRelationStatistics Valid=542, Invalid=2650, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 19:15:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150972 states. [2021-10-13 19:15:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150972 to 60890. [2021-10-13 19:15:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60890 states, 60828 states have (on average 3.6379627802985466) internal successors, (221290), 60889 states have internal predecessors, (221290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60890 states to 60890 states and 221290 transitions. [2021-10-13 19:15:07,598 INFO L78 Accepts]: Start accepts. Automaton has 60890 states and 221290 transitions. Word has length 16 [2021-10-13 19:15:07,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:07,598 INFO L470 AbstractCegarLoop]: Abstraction has 60890 states and 221290 transitions. [2021-10-13 19:15:07,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand 60890 states and 221290 transitions. [2021-10-13 19:15:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:15:07,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:07,608 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:07,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-13 19:15:07,608 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:07,609 INFO L82 PathProgramCache]: Analyzing trace with hash 177831428, now seen corresponding path program 1 times [2021-10-13 19:15:07,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:07,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318414007] [2021-10-13 19:15:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:07,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:07,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:07,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318414007] [2021-10-13 19:15:07,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318414007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:07,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:07,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:15:07,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197772120] [2021-10-13 19:15:07,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:15:07,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:15:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:15:07,667 INFO L87 Difference]: Start difference. First operand 60890 states and 221290 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:09,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:09,376 INFO L93 Difference]: Finished difference Result 90104 states and 324549 transitions. [2021-10-13 19:15:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:15:09,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:15:09,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:10,593 INFO L225 Difference]: With dead ends: 90104 [2021-10-13 19:15:10,593 INFO L226 Difference]: Without dead ends: 90104 [2021-10-13 19:15:10,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 73.5ms TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-10-13 19:15:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90104 states. [2021-10-13 19:15:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90104 to 63274. [2021-10-13 19:15:13,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63274 states, 63212 states have (on average 3.633787888375625) internal successors, (229699), 63273 states have internal predecessors, (229699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63274 states to 63274 states and 229699 transitions. [2021-10-13 19:15:13,419 INFO L78 Accepts]: Start accepts. Automaton has 63274 states and 229699 transitions. Word has length 16 [2021-10-13 19:15:13,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:13,420 INFO L470 AbstractCegarLoop]: Abstraction has 63274 states and 229699 transitions. [2021-10-13 19:15:13,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:13,420 INFO L276 IsEmpty]: Start isEmpty. Operand 63274 states and 229699 transitions. [2021-10-13 19:15:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 19:15:13,430 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:13,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:13,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-13 19:15:13,430 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1747771686, now seen corresponding path program 1 times [2021-10-13 19:15:13,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:13,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581230333] [2021-10-13 19:15:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:13,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:13,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:13,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581230333] [2021-10-13 19:15:13,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581230333] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:13,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:13,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:15:13,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015566899] [2021-10-13 19:15:13,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:15:13,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:13,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:15:13,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:15:13,486 INFO L87 Difference]: Start difference. First operand 63274 states and 229699 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:14,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:14,886 INFO L93 Difference]: Finished difference Result 77242 states and 278990 transitions. [2021-10-13 19:15:14,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:15:14,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 19:15:14,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:15,356 INFO L225 Difference]: With dead ends: 77242 [2021-10-13 19:15:15,356 INFO L226 Difference]: Without dead ends: 77242 [2021-10-13 19:15:15,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:15:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77242 states. [2021-10-13 19:15:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77242 to 64848. [2021-10-13 19:15:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64848 states, 64787 states have (on average 3.638662077268588) internal successors, (235738), 64847 states have internal predecessors, (235738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:18,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64848 states to 64848 states and 235738 transitions. [2021-10-13 19:15:18,727 INFO L78 Accepts]: Start accepts. Automaton has 64848 states and 235738 transitions. Word has length 16 [2021-10-13 19:15:18,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:18,727 INFO L470 AbstractCegarLoop]: Abstraction has 64848 states and 235738 transitions. [2021-10-13 19:15:18,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:18,727 INFO L276 IsEmpty]: Start isEmpty. Operand 64848 states and 235738 transitions. [2021-10-13 19:15:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:18,736 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:18,736 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:18,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-13 19:15:18,737 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:18,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:18,737 INFO L82 PathProgramCache]: Analyzing trace with hash -223793062, now seen corresponding path program 1 times [2021-10-13 19:15:18,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:18,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176976078] [2021-10-13 19:15:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:18,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:18,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:18,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176976078] [2021-10-13 19:15:18,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176976078] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:18,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:18,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:15:18,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66208340] [2021-10-13 19:15:18,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:15:18,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:18,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:15:18,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:15:18,785 INFO L87 Difference]: Start difference. First operand 64848 states and 235738 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:20,138 INFO L93 Difference]: Finished difference Result 75492 states and 272319 transitions. [2021-10-13 19:15:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:15:20,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:20,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:20,633 INFO L225 Difference]: With dead ends: 75492 [2021-10-13 19:15:20,633 INFO L226 Difference]: Without dead ends: 75492 [2021-10-13 19:15:20,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:15:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75492 states. [2021-10-13 19:15:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75492 to 64274. [2021-10-13 19:15:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64274 states, 64213 states have (on average 3.6357902605391432) internal successors, (233465), 64273 states have internal predecessors, (233465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64274 states to 64274 states and 233465 transitions. [2021-10-13 19:15:23,823 INFO L78 Accepts]: Start accepts. Automaton has 64274 states and 233465 transitions. Word has length 17 [2021-10-13 19:15:23,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:23,825 INFO L470 AbstractCegarLoop]: Abstraction has 64274 states and 233465 transitions. [2021-10-13 19:15:23,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 64274 states and 233465 transitions. [2021-10-13 19:15:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:23,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:23,855 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:23,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-13 19:15:23,862 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:23,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:23,863 INFO L82 PathProgramCache]: Analyzing trace with hash 994065366, now seen corresponding path program 2 times [2021-10-13 19:15:23,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:23,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737644085] [2021-10-13 19:15:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:23,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:23,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:23,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737644085] [2021-10-13 19:15:23,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737644085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:23,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:23,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:15:23,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553562439] [2021-10-13 19:15:23,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:15:23,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:15:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:15:23,991 INFO L87 Difference]: Start difference. First operand 64274 states and 233465 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:26,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:26,418 INFO L93 Difference]: Finished difference Result 117696 states and 422809 transitions. [2021-10-13 19:15:26,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 19:15:26,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:26,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:27,261 INFO L225 Difference]: With dead ends: 117696 [2021-10-13 19:15:27,261 INFO L226 Difference]: Without dead ends: 117696 [2021-10-13 19:15:27,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 256.5ms TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:15:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117696 states. [2021-10-13 19:15:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117696 to 64330. [2021-10-13 19:15:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64330 states, 64269 states have (on average 3.6371656630723987) internal successors, (233757), 64329 states have internal predecessors, (233757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64330 states to 64330 states and 233757 transitions. [2021-10-13 19:15:31,842 INFO L78 Accepts]: Start accepts. Automaton has 64330 states and 233757 transitions. Word has length 17 [2021-10-13 19:15:31,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:31,842 INFO L470 AbstractCegarLoop]: Abstraction has 64330 states and 233757 transitions. [2021-10-13 19:15:31,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:31,843 INFO L276 IsEmpty]: Start isEmpty. Operand 64330 states and 233757 transitions. [2021-10-13 19:15:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:31,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:31,855 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:31,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-13 19:15:31,855 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:31,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:31,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1001036741, now seen corresponding path program 1 times [2021-10-13 19:15:31,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:31,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948084022] [2021-10-13 19:15:31,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:31,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:31,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:31,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948084022] [2021-10-13 19:15:31,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948084022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:31,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:31,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:15:31,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177475657] [2021-10-13 19:15:31,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:15:31,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:15:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:15:31,918 INFO L87 Difference]: Start difference. First operand 64330 states and 233757 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:34,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:34,681 INFO L93 Difference]: Finished difference Result 105966 states and 380761 transitions. [2021-10-13 19:15:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-13 19:15:34,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:36,002 INFO L225 Difference]: With dead ends: 105966 [2021-10-13 19:15:36,003 INFO L226 Difference]: Without dead ends: 105966 [2021-10-13 19:15:36,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 324.9ms TimeCoverageRelationStatistics Valid=397, Invalid=1859, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 19:15:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105966 states. [2021-10-13 19:15:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105966 to 62386. [2021-10-13 19:15:38,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62386 states, 62325 states have (on average 3.631849177697553) internal successors, (226355), 62385 states have internal predecessors, (226355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62386 states to 62386 states and 226355 transitions. [2021-10-13 19:15:39,552 INFO L78 Accepts]: Start accepts. Automaton has 62386 states and 226355 transitions. Word has length 17 [2021-10-13 19:15:39,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:39,552 INFO L470 AbstractCegarLoop]: Abstraction has 62386 states and 226355 transitions. [2021-10-13 19:15:39,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 62386 states and 226355 transitions. [2021-10-13 19:15:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:39,578 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:39,578 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:39,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-13 19:15:39,578 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:39,579 INFO L82 PathProgramCache]: Analyzing trace with hash -395879966, now seen corresponding path program 1 times [2021-10-13 19:15:39,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:39,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675519374] [2021-10-13 19:15:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:39,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:39,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:39,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675519374] [2021-10-13 19:15:39,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675519374] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:39,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:39,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:15:39,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480837886] [2021-10-13 19:15:39,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:15:39,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:39,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:15:39,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:15:39,687 INFO L87 Difference]: Start difference. First operand 62386 states and 226355 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:42,691 INFO L93 Difference]: Finished difference Result 130332 states and 468222 transitions. [2021-10-13 19:15:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-13 19:15:42,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:43,574 INFO L225 Difference]: With dead ends: 130332 [2021-10-13 19:15:43,574 INFO L226 Difference]: Without dead ends: 130332 [2021-10-13 19:15:43,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 414.8ms TimeCoverageRelationStatistics Valid=514, Invalid=2138, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 19:15:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130332 states. [2021-10-13 19:15:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130332 to 60112. [2021-10-13 19:15:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60112 states, 60051 states have (on average 3.6208889110922384) internal successors, (217438), 60111 states have internal predecessors, (217438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:47,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60112 states to 60112 states and 217438 transitions. [2021-10-13 19:15:47,315 INFO L78 Accepts]: Start accepts. Automaton has 60112 states and 217438 transitions. Word has length 17 [2021-10-13 19:15:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:47,316 INFO L470 AbstractCegarLoop]: Abstraction has 60112 states and 217438 transitions. [2021-10-13 19:15:47,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 60112 states and 217438 transitions. [2021-10-13 19:15:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:47,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:47,326 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:47,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-13 19:15:47,327 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:47,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:47,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1112350704, now seen corresponding path program 1 times [2021-10-13 19:15:47,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:47,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53260247] [2021-10-13 19:15:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:47,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:47,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:47,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53260247] [2021-10-13 19:15:47,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53260247] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:47,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:47,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:15:47,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216176110] [2021-10-13 19:15:47,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:15:47,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:47,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:15:47,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:15:47,369 INFO L87 Difference]: Start difference. First operand 60112 states and 217438 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:48,799 INFO L93 Difference]: Finished difference Result 79988 states and 286720 transitions. [2021-10-13 19:15:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:15:48,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:49,811 INFO L225 Difference]: With dead ends: 79988 [2021-10-13 19:15:49,811 INFO L226 Difference]: Without dead ends: 79988 [2021-10-13 19:15:49,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 49.5ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:15:49,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79988 states. [2021-10-13 19:15:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79988 to 61028. [2021-10-13 19:15:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61028 states, 60971 states have (on average 3.62372275344016) internal successors, (220942), 61027 states have internal predecessors, (220942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61028 states to 61028 states and 220942 transitions. [2021-10-13 19:15:52,537 INFO L78 Accepts]: Start accepts. Automaton has 61028 states and 220942 transitions. Word has length 17 [2021-10-13 19:15:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:52,538 INFO L470 AbstractCegarLoop]: Abstraction has 61028 states and 220942 transitions. [2021-10-13 19:15:52,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 61028 states and 220942 transitions. [2021-10-13 19:15:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:52,548 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:52,548 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:52,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-13 19:15:52,549 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:52,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1173049005, now seen corresponding path program 1 times [2021-10-13 19:15:52,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:52,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140470894] [2021-10-13 19:15:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:52,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:52,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:52,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:52,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140470894] [2021-10-13 19:15:52,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140470894] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:52,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:52,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:15:52,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746789195] [2021-10-13 19:15:52,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:15:52,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:52,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:15:52,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:15:52,604 INFO L87 Difference]: Start difference. First operand 61028 states and 220942 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:54,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:54,388 INFO L93 Difference]: Finished difference Result 84222 states and 302349 transitions. [2021-10-13 19:15:54,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:15:54,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:54,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:15:54,955 INFO L225 Difference]: With dead ends: 84222 [2021-10-13 19:15:54,955 INFO L226 Difference]: Without dead ends: 84222 [2021-10-13 19:15:54,955 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 76.3ms TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:15:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84222 states. [2021-10-13 19:15:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84222 to 62312. [2021-10-13 19:15:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62312 states, 62255 states have (on average 3.625026102321099) internal successors, (225676), 62311 states have internal predecessors, (225676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62312 states to 62312 states and 225676 transitions. [2021-10-13 19:15:58,529 INFO L78 Accepts]: Start accepts. Automaton has 62312 states and 225676 transitions. Word has length 17 [2021-10-13 19:15:58,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:15:58,530 INFO L470 AbstractCegarLoop]: Abstraction has 62312 states and 225676 transitions. [2021-10-13 19:15:58,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 62312 states and 225676 transitions. [2021-10-13 19:15:58,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:15:58,547 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:15:58,548 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:15:58,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-13 19:15:58,549 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:15:58,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:15:58,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1280844165, now seen corresponding path program 1 times [2021-10-13 19:15:58,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:15:58,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800703191] [2021-10-13 19:15:58,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:15:58,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:15:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:15:58,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:15:58,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:15:58,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800703191] [2021-10-13 19:15:58,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800703191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:15:58,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:15:58,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:15:58,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101973358] [2021-10-13 19:15:58,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:15:58,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:15:58,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:15:58,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:15:58,580 INFO L87 Difference]: Start difference. First operand 62312 states and 225676 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:15:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:15:59,819 INFO L93 Difference]: Finished difference Result 70228 states and 251733 transitions. [2021-10-13 19:15:59,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:15:59,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:15:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:00,323 INFO L225 Difference]: With dead ends: 70228 [2021-10-13 19:16:00,323 INFO L226 Difference]: Without dead ends: 70228 [2021-10-13 19:16:00,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70228 states. [2021-10-13 19:16:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70228 to 59548. [2021-10-13 19:16:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59548 states, 59491 states have (on average 3.6114706426182113) internal successors, (214850), 59547 states have internal predecessors, (214850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59548 states to 59548 states and 214850 transitions. [2021-10-13 19:16:02,885 INFO L78 Accepts]: Start accepts. Automaton has 59548 states and 214850 transitions. Word has length 17 [2021-10-13 19:16:02,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:02,885 INFO L470 AbstractCegarLoop]: Abstraction has 59548 states and 214850 transitions. [2021-10-13 19:16:02,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 59548 states and 214850 transitions. [2021-10-13 19:16:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:16:02,903 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:02,903 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:02,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-13 19:16:02,904 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:02,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:02,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1399679336, now seen corresponding path program 1 times [2021-10-13 19:16:02,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:02,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639816621] [2021-10-13 19:16:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:02,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:02,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:02,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639816621] [2021-10-13 19:16:02,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639816621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:02,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:02,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:16:02,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529966402] [2021-10-13 19:16:02,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:02,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:02,943 INFO L87 Difference]: Start difference. First operand 59548 states and 214850 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:04,053 INFO L93 Difference]: Finished difference Result 59630 states and 214329 transitions. [2021-10-13 19:16:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:16:04,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:16:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:04,386 INFO L225 Difference]: With dead ends: 59630 [2021-10-13 19:16:04,386 INFO L226 Difference]: Without dead ends: 59630 [2021-10-13 19:16:04,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:04,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59630 states. [2021-10-13 19:16:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59630 to 58762. [2021-10-13 19:16:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58762 states, 58705 states have (on average 3.610016182607955) internal successors, (211926), 58761 states have internal predecessors, (211926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:06,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58762 states to 58762 states and 211926 transitions. [2021-10-13 19:16:06,844 INFO L78 Accepts]: Start accepts. Automaton has 58762 states and 211926 transitions. Word has length 17 [2021-10-13 19:16:06,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:06,844 INFO L470 AbstractCegarLoop]: Abstraction has 58762 states and 211926 transitions. [2021-10-13 19:16:06,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:06,845 INFO L276 IsEmpty]: Start isEmpty. Operand 58762 states and 211926 transitions. [2021-10-13 19:16:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:16:06,857 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:06,858 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:06,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-13 19:16:06,858 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:06,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1399679262, now seen corresponding path program 1 times [2021-10-13 19:16:06,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:06,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535821595] [2021-10-13 19:16:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:06,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:06,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:06,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535821595] [2021-10-13 19:16:06,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535821595] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:06,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:06,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:16:06,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424864029] [2021-10-13 19:16:06,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:16:06,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:06,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:16:06,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:16:06,897 INFO L87 Difference]: Start difference. First operand 58762 states and 211926 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:08,041 INFO L93 Difference]: Finished difference Result 58812 states and 209941 transitions. [2021-10-13 19:16:08,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:16:08,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 19:16:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:08,379 INFO L225 Difference]: With dead ends: 58812 [2021-10-13 19:16:08,379 INFO L226 Difference]: Without dead ends: 58786 [2021-10-13 19:16:08,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:16:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58786 states. [2021-10-13 19:16:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58786 to 57850. [2021-10-13 19:16:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57850 states, 57798 states have (on average 3.5877885047925533) internal successors, (207367), 57849 states have internal predecessors, (207367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57850 states to 57850 states and 207367 transitions. [2021-10-13 19:16:10,743 INFO L78 Accepts]: Start accepts. Automaton has 57850 states and 207367 transitions. Word has length 17 [2021-10-13 19:16:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:10,744 INFO L470 AbstractCegarLoop]: Abstraction has 57850 states and 207367 transitions. [2021-10-13 19:16:10,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 57850 states and 207367 transitions. [2021-10-13 19:16:10,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:10,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:10,763 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:10,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-13 19:16:10,763 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:10,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:10,764 INFO L82 PathProgramCache]: Analyzing trace with hash 278991862, now seen corresponding path program 1 times [2021-10-13 19:16:10,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:10,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713581505] [2021-10-13 19:16:10,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:10,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:10,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:10,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713581505] [2021-10-13 19:16:10,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713581505] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:10,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:10,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:16:10,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520357858] [2021-10-13 19:16:10,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:16:10,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:10,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:16:10,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:10,807 INFO L87 Difference]: Start difference. First operand 57850 states and 207367 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:13,023 INFO L93 Difference]: Finished difference Result 97384 states and 344573 transitions. [2021-10-13 19:16:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:16:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:13,864 INFO L225 Difference]: With dead ends: 97384 [2021-10-13 19:16:13,864 INFO L226 Difference]: Without dead ends: 97384 [2021-10-13 19:16:13,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 48.3ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:16:14,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97384 states. [2021-10-13 19:16:16,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97384 to 57996. [2021-10-13 19:16:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57996 states, 57944 states have (on average 3.5876535965760046) internal successors, (207883), 57995 states have internal predecessors, (207883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57996 states to 57996 states and 207883 transitions. [2021-10-13 19:16:17,565 INFO L78 Accepts]: Start accepts. Automaton has 57996 states and 207883 transitions. Word has length 18 [2021-10-13 19:16:17,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:17,566 INFO L470 AbstractCegarLoop]: Abstraction has 57996 states and 207883 transitions. [2021-10-13 19:16:17,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 57996 states and 207883 transitions. [2021-10-13 19:16:17,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:17,586 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:17,587 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:17,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-13 19:16:17,587 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:17,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1535780810, now seen corresponding path program 2 times [2021-10-13 19:16:17,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:17,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38339697] [2021-10-13 19:16:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:17,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:17,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:17,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38339697] [2021-10-13 19:16:17,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38339697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:17,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:17,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:16:17,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569146900] [2021-10-13 19:16:17,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:17,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:17,653 INFO L87 Difference]: Start difference. First operand 57996 states and 207883 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:19,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:19,682 INFO L93 Difference]: Finished difference Result 102628 states and 362024 transitions. [2021-10-13 19:16:19,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:16:19,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:20,396 INFO L225 Difference]: With dead ends: 102628 [2021-10-13 19:16:20,397 INFO L226 Difference]: Without dead ends: 102628 [2021-10-13 19:16:20,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 99.4ms TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-10-13 19:16:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102628 states. [2021-10-13 19:16:23,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102628 to 57832. [2021-10-13 19:16:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57832 states, 57780 states have (on average 3.582381446867428) internal successors, (206990), 57831 states have internal predecessors, (206990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57832 states to 57832 states and 206990 transitions. [2021-10-13 19:16:23,976 INFO L78 Accepts]: Start accepts. Automaton has 57832 states and 206990 transitions. Word has length 18 [2021-10-13 19:16:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:23,976 INFO L470 AbstractCegarLoop]: Abstraction has 57832 states and 206990 transitions. [2021-10-13 19:16:23,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 57832 states and 206990 transitions. [2021-10-13 19:16:23,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:23,990 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:23,990 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:23,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-13 19:16:23,990 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:23,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1067618634, now seen corresponding path program 3 times [2021-10-13 19:16:23,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:23,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666485477] [2021-10-13 19:16:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:23,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:24,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:24,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:24,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666485477] [2021-10-13 19:16:24,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666485477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:24,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:24,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:16:24,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818027193] [2021-10-13 19:16:24,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:16:24,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:24,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:16:24,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:24,030 INFO L87 Difference]: Start difference. First operand 57832 states and 206990 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:25,536 INFO L93 Difference]: Finished difference Result 80038 states and 288002 transitions. [2021-10-13 19:16:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:16:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:26,065 INFO L225 Difference]: With dead ends: 80038 [2021-10-13 19:16:26,065 INFO L226 Difference]: Without dead ends: 80038 [2021-10-13 19:16:26,065 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 44.5ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:16:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80038 states. [2021-10-13 19:16:28,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80038 to 57020. [2021-10-13 19:16:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57020 states, 56968 states have (on average 3.579097036933015) internal successors, (203894), 57019 states have internal predecessors, (203894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57020 states to 57020 states and 203894 transitions. [2021-10-13 19:16:28,655 INFO L78 Accepts]: Start accepts. Automaton has 57020 states and 203894 transitions. Word has length 18 [2021-10-13 19:16:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:28,655 INFO L470 AbstractCegarLoop]: Abstraction has 57020 states and 203894 transitions. [2021-10-13 19:16:28,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 57020 states and 203894 transitions. [2021-10-13 19:16:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:28,670 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:28,670 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:28,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-13 19:16:28,670 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:28,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:28,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1482637066, now seen corresponding path program 4 times [2021-10-13 19:16:28,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:28,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108143771] [2021-10-13 19:16:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:28,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:28,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:28,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108143771] [2021-10-13 19:16:28,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108143771] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:28,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:28,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:16:28,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318496801] [2021-10-13 19:16:28,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:16:28,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:28,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:16:28,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:16:28,712 INFO L87 Difference]: Start difference. First operand 57020 states and 203894 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:30,534 INFO L93 Difference]: Finished difference Result 93026 states and 329551 transitions. [2021-10-13 19:16:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:16:30,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:31,795 INFO L225 Difference]: With dead ends: 93026 [2021-10-13 19:16:31,795 INFO L226 Difference]: Without dead ends: 93026 [2021-10-13 19:16:31,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 52.7ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-13 19:16:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93026 states. [2021-10-13 19:16:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93026 to 56172. [2021-10-13 19:16:34,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56172 states, 56120 states have (on average 3.575694939415538) internal successors, (200668), 56171 states have internal predecessors, (200668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56172 states to 56172 states and 200668 transitions. [2021-10-13 19:16:34,578 INFO L78 Accepts]: Start accepts. Automaton has 56172 states and 200668 transitions. Word has length 18 [2021-10-13 19:16:34,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:34,579 INFO L470 AbstractCegarLoop]: Abstraction has 56172 states and 200668 transitions. [2021-10-13 19:16:34,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand 56172 states and 200668 transitions. [2021-10-13 19:16:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:34,593 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:34,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:34,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-10-13 19:16:34,594 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:34,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:34,594 INFO L82 PathProgramCache]: Analyzing trace with hash 383674968, now seen corresponding path program 1 times [2021-10-13 19:16:34,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:34,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765094399] [2021-10-13 19:16:34,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:34,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:34,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:34,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765094399] [2021-10-13 19:16:34,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765094399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:34,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:34,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:16:34,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870300134] [2021-10-13 19:16:34,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:16:34,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:34,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:16:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:16:34,656 INFO L87 Difference]: Start difference. First operand 56172 states and 200668 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:36,380 INFO L93 Difference]: Finished difference Result 87962 states and 311745 transitions. [2021-10-13 19:16:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:16:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:36,916 INFO L225 Difference]: With dead ends: 87962 [2021-10-13 19:16:36,917 INFO L226 Difference]: Without dead ends: 87962 [2021-10-13 19:16:36,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 95.1ms TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:16:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87962 states. [2021-10-13 19:16:39,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87962 to 60790. [2021-10-13 19:16:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60790 states, 60738 states have (on average 3.58120122493332) internal successors, (217515), 60789 states have internal predecessors, (217515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60790 states to 60790 states and 217515 transitions. [2021-10-13 19:16:40,377 INFO L78 Accepts]: Start accepts. Automaton has 60790 states and 217515 transitions. Word has length 18 [2021-10-13 19:16:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:40,377 INFO L470 AbstractCegarLoop]: Abstraction has 60790 states and 217515 transitions. [2021-10-13 19:16:40,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 60790 states and 217515 transitions. [2021-10-13 19:16:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:40,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:40,395 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:40,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-10-13 19:16:40,396 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:40,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:40,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1372320922, now seen corresponding path program 1 times [2021-10-13 19:16:40,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:40,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812444114] [2021-10-13 19:16:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:40,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:40,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:40,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812444114] [2021-10-13 19:16:40,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812444114] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:40,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:40,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:16:40,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680213154] [2021-10-13 19:16:40,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:16:40,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:40,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:16:40,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:16:40,441 INFO L87 Difference]: Start difference. First operand 60790 states and 217515 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:42,163 INFO L93 Difference]: Finished difference Result 72296 states and 252714 transitions. [2021-10-13 19:16:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:16:42,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:42,704 INFO L225 Difference]: With dead ends: 72296 [2021-10-13 19:16:42,704 INFO L226 Difference]: Without dead ends: 72296 [2021-10-13 19:16:42,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 74.4ms TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:16:42,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72296 states. [2021-10-13 19:16:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72296 to 57318. [2021-10-13 19:16:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57318 states, 57266 states have (on average 3.5425732546362587) internal successors, (202869), 57317 states have internal predecessors, (202869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57318 states to 57318 states and 202869 transitions. [2021-10-13 19:16:45,279 INFO L78 Accepts]: Start accepts. Automaton has 57318 states and 202869 transitions. Word has length 18 [2021-10-13 19:16:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:45,279 INFO L470 AbstractCegarLoop]: Abstraction has 57318 states and 202869 transitions. [2021-10-13 19:16:45,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:45,279 INFO L276 IsEmpty]: Start isEmpty. Operand 57318 states and 202869 transitions. [2021-10-13 19:16:45,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 19:16:45,298 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:45,298 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:45,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-10-13 19:16:45,299 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:45,315 INFO L82 PathProgramCache]: Analyzing trace with hash 88312379, now seen corresponding path program 1 times [2021-10-13 19:16:45,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:45,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953592797] [2021-10-13 19:16:45,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:45,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:45,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:45,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953592797] [2021-10-13 19:16:45,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953592797] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:45,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:45,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:16:45,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637008589] [2021-10-13 19:16:45,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:16:45,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:45,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:16:45,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:16:45,413 INFO L87 Difference]: Start difference. First operand 57318 states and 202869 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:47,385 INFO L93 Difference]: Finished difference Result 87908 states and 309170 transitions. [2021-10-13 19:16:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 19:16:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 19:16:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:48,561 INFO L225 Difference]: With dead ends: 87908 [2021-10-13 19:16:48,561 INFO L226 Difference]: Without dead ends: 87908 [2021-10-13 19:16:48,562 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 121.8ms TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2021-10-13 19:16:48,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87908 states. [2021-10-13 19:16:51,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87908 to 51808. [2021-10-13 19:16:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51808 states, 51756 states have (on average 3.5375028982147) internal successors, (183087), 51807 states have internal predecessors, (183087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51808 states to 51808 states and 183087 transitions. [2021-10-13 19:16:52,086 INFO L78 Accepts]: Start accepts. Automaton has 51808 states and 183087 transitions. Word has length 18 [2021-10-13 19:16:52,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:52,086 INFO L470 AbstractCegarLoop]: Abstraction has 51808 states and 183087 transitions. [2021-10-13 19:16:52,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 51808 states and 183087 transitions. [2021-10-13 19:16:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:16:52,104 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:52,104 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:52,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-13 19:16:52,104 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:52,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:52,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1562292689, now seen corresponding path program 1 times [2021-10-13 19:16:52,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:52,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523497020] [2021-10-13 19:16:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:52,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:52,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:52,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523497020] [2021-10-13 19:16:52,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523497020] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:52,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:52,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:16:52,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036732074] [2021-10-13 19:16:52,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:16:52,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:52,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:16:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:52,183 INFO L87 Difference]: Start difference. First operand 51808 states and 183087 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:55,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:16:55,103 INFO L93 Difference]: Finished difference Result 101034 states and 351701 transitions. [2021-10-13 19:16:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 19:16:55,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:16:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:16:55,986 INFO L225 Difference]: With dead ends: 101034 [2021-10-13 19:16:55,986 INFO L226 Difference]: Without dead ends: 101034 [2021-10-13 19:16:55,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 327.9ms TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 19:16:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101034 states. [2021-10-13 19:16:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101034 to 55322. [2021-10-13 19:16:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55322 states, 55270 states have (on average 3.531680839515108) internal successors, (195196), 55321 states have internal predecessors, (195196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55322 states to 55322 states and 195196 transitions. [2021-10-13 19:16:59,734 INFO L78 Accepts]: Start accepts. Automaton has 55322 states and 195196 transitions. Word has length 19 [2021-10-13 19:16:59,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:16:59,734 INFO L470 AbstractCegarLoop]: Abstraction has 55322 states and 195196 transitions. [2021-10-13 19:16:59,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:16:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 55322 states and 195196 transitions. [2021-10-13 19:16:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:16:59,751 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:16:59,751 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:16:59,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-10-13 19:16:59,751 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:16:59,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:16:59,752 INFO L82 PathProgramCache]: Analyzing trace with hash 138101507, now seen corresponding path program 2 times [2021-10-13 19:16:59,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:16:59,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289702174] [2021-10-13 19:16:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:16:59,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:16:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:16:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:16:59,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:16:59,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289702174] [2021-10-13 19:16:59,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289702174] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:16:59,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:16:59,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:16:59,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876520324] [2021-10-13 19:16:59,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:16:59,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:16:59,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:16:59,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:16:59,831 INFO L87 Difference]: Start difference. First operand 55322 states and 195196 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:02,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:02,511 INFO L93 Difference]: Finished difference Result 109192 states and 378639 transitions. [2021-10-13 19:17:02,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 19:17:02,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:17:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:04,038 INFO L225 Difference]: With dead ends: 109192 [2021-10-13 19:17:04,040 INFO L226 Difference]: Without dead ends: 109192 [2021-10-13 19:17:04,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 277.6ms TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 19:17:04,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109192 states. [2021-10-13 19:17:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109192 to 55454. [2021-10-13 19:17:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55454 states, 55402 states have (on average 3.5314609580881555) internal successors, (195650), 55453 states have internal predecessors, (195650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:08,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55454 states to 55454 states and 195650 transitions. [2021-10-13 19:17:08,256 INFO L78 Accepts]: Start accepts. Automaton has 55454 states and 195650 transitions. Word has length 19 [2021-10-13 19:17:08,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:08,256 INFO L470 AbstractCegarLoop]: Abstraction has 55454 states and 195650 transitions. [2021-10-13 19:17:08,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:08,256 INFO L276 IsEmpty]: Start isEmpty. Operand 55454 states and 195650 transitions. [2021-10-13 19:17:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:17:08,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:08,278 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:08,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-10-13 19:17:08,281 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:08,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:08,283 INFO L82 PathProgramCache]: Analyzing trace with hash 443853231, now seen corresponding path program 3 times [2021-10-13 19:17:08,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:08,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859101487] [2021-10-13 19:17:08,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:08,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:08,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:08,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859101487] [2021-10-13 19:17:08,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859101487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:08,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:08,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-13 19:17:08,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75690906] [2021-10-13 19:17:08,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 19:17:08,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 19:17:08,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-13 19:17:08,467 INFO L87 Difference]: Start difference. First operand 55454 states and 195650 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:11,831 INFO L93 Difference]: Finished difference Result 115418 states and 400380 transitions. [2021-10-13 19:17:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-13 19:17:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:17:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:13,384 INFO L225 Difference]: With dead ends: 115418 [2021-10-13 19:17:13,384 INFO L226 Difference]: Without dead ends: 115418 [2021-10-13 19:17:13,384 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 426.4ms TimeCoverageRelationStatistics Valid=487, Invalid=1675, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 19:17:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115418 states. [2021-10-13 19:17:16,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115418 to 54662. [2021-10-13 19:17:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54662 states, 54610 states have (on average 3.5378135872550813) internal successors, (193200), 54661 states have internal predecessors, (193200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54662 states to 54662 states and 193200 transitions. [2021-10-13 19:17:17,504 INFO L78 Accepts]: Start accepts. Automaton has 54662 states and 193200 transitions. Word has length 19 [2021-10-13 19:17:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:17,505 INFO L470 AbstractCegarLoop]: Abstraction has 54662 states and 193200 transitions. [2021-10-13 19:17:17,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 54662 states and 193200 transitions. [2021-10-13 19:17:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:17:17,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:17,540 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:17,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-10-13 19:17:17,540 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:17,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:17,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1184272337, now seen corresponding path program 4 times [2021-10-13 19:17:17,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:17,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521586919] [2021-10-13 19:17:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:17,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:17,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:17,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521586919] [2021-10-13 19:17:17,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521586919] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:17,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:17,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:17:17,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93470060] [2021-10-13 19:17:17,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:17:17,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:17,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:17:17,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:17:17,660 INFO L87 Difference]: Start difference. First operand 54662 states and 193200 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:20,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:20,052 INFO L93 Difference]: Finished difference Result 97582 states and 342325 transitions. [2021-10-13 19:17:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 19:17:20,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:17:20,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:20,718 INFO L225 Difference]: With dead ends: 97582 [2021-10-13 19:17:20,718 INFO L226 Difference]: Without dead ends: 97582 [2021-10-13 19:17:20,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 268.7ms TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 19:17:20,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97582 states. [2021-10-13 19:17:23,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97582 to 54926. [2021-10-13 19:17:23,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54926 states, 54874 states have (on average 3.537832124503408) internal successors, (194135), 54925 states have internal predecessors, (194135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54926 states to 54926 states and 194135 transitions. [2021-10-13 19:17:24,431 INFO L78 Accepts]: Start accepts. Automaton has 54926 states and 194135 transitions. Word has length 19 [2021-10-13 19:17:24,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:24,432 INFO L470 AbstractCegarLoop]: Abstraction has 54926 states and 194135 transitions. [2021-10-13 19:17:24,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand 54926 states and 194135 transitions. [2021-10-13 19:17:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:17:24,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:24,454 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:24,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-10-13 19:17:24,456 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:24,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:24,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1362179587, now seen corresponding path program 5 times [2021-10-13 19:17:24,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:24,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571112629] [2021-10-13 19:17:24,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:24,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:24,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:24,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571112629] [2021-10-13 19:17:24,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571112629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:24,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:24,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:17:24,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398374814] [2021-10-13 19:17:24,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:17:24,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:17:24,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:17:24,581 INFO L87 Difference]: Start difference. First operand 54926 states and 194135 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:27,636 INFO L93 Difference]: Finished difference Result 124774 states and 435453 transitions. [2021-10-13 19:17:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-13 19:17:27,637 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 19:17:27,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:28,503 INFO L225 Difference]: With dead ends: 124774 [2021-10-13 19:17:28,504 INFO L226 Difference]: Without dead ends: 124774 [2021-10-13 19:17:28,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 330.2ms TimeCoverageRelationStatistics Valid=495, Invalid=1761, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 19:17:29,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124774 states. [2021-10-13 19:17:32,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124774 to 50984. [2021-10-13 19:17:32,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50984 states, 50933 states have (on average 3.5290675986099385) internal successors, (179746), 50983 states have internal predecessors, (179746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50984 states to 50984 states and 179746 transitions. [2021-10-13 19:17:32,790 INFO L78 Accepts]: Start accepts. Automaton has 50984 states and 179746 transitions. Word has length 19 [2021-10-13 19:17:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:32,790 INFO L470 AbstractCegarLoop]: Abstraction has 50984 states and 179746 transitions. [2021-10-13 19:17:32,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 50984 states and 179746 transitions. [2021-10-13 19:17:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:17:32,811 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:32,811 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:32,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-10-13 19:17:32,812 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1562687137, now seen corresponding path program 1 times [2021-10-13 19:17:32,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:32,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401713968] [2021-10-13 19:17:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:32,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:32,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:32,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401713968] [2021-10-13 19:17:32,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401713968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:32,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:32,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:17:32,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563193906] [2021-10-13 19:17:32,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:17:32,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:32,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:17:32,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:17:32,845 INFO L87 Difference]: Start difference. First operand 50984 states and 179746 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:34,130 INFO L93 Difference]: Finished difference Result 55804 states and 196295 transitions. [2021-10-13 19:17:34,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:17:34,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:17:34,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:34,492 INFO L225 Difference]: With dead ends: 55804 [2021-10-13 19:17:34,493 INFO L226 Difference]: Without dead ends: 55804 [2021-10-13 19:17:34,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:17:34,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55804 states. [2021-10-13 19:17:36,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55804 to 42182. [2021-10-13 19:17:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42182 states, 42131 states have (on average 3.5253376373691583) internal successors, (148526), 42181 states have internal predecessors, (148526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42182 states to 42182 states and 148526 transitions. [2021-10-13 19:17:36,717 INFO L78 Accepts]: Start accepts. Automaton has 42182 states and 148526 transitions. Word has length 20 [2021-10-13 19:17:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:36,718 INFO L470 AbstractCegarLoop]: Abstraction has 42182 states and 148526 transitions. [2021-10-13 19:17:36,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 42182 states and 148526 transitions. [2021-10-13 19:17:36,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:17:36,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:36,740 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:36,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-10-13 19:17:36,740 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:36,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:36,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1954710888, now seen corresponding path program 1 times [2021-10-13 19:17:36,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:36,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109993671] [2021-10-13 19:17:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:36,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:36,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:36,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109993671] [2021-10-13 19:17:36,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109993671] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:36,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:36,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:17:36,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118013446] [2021-10-13 19:17:36,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:17:36,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:17:36,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:17:36,867 INFO L87 Difference]: Start difference. First operand 42182 states and 148526 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:39,655 INFO L93 Difference]: Finished difference Result 88544 states and 309058 transitions. [2021-10-13 19:17:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-13 19:17:39,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:17:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:40,206 INFO L225 Difference]: With dead ends: 88544 [2021-10-13 19:17:40,207 INFO L226 Difference]: Without dead ends: 88544 [2021-10-13 19:17:40,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 477.5ms TimeCoverageRelationStatistics Valid=631, Invalid=2449, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 19:17:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88544 states. [2021-10-13 19:17:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88544 to 42480. [2021-10-13 19:17:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42480 states, 42429 states have (on average 3.5249475594522615) internal successors, (149560), 42479 states have internal predecessors, (149560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42480 states to 42480 states and 149560 transitions. [2021-10-13 19:17:43,033 INFO L78 Accepts]: Start accepts. Automaton has 42480 states and 149560 transitions. Word has length 20 [2021-10-13 19:17:43,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:43,034 INFO L470 AbstractCegarLoop]: Abstraction has 42480 states and 149560 transitions. [2021-10-13 19:17:43,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 42480 states and 149560 transitions. [2021-10-13 19:17:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 19:17:43,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:43,054 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:43,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-10-13 19:17:43,058 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:43,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:43,058 INFO L82 PathProgramCache]: Analyzing trace with hash 897594260, now seen corresponding path program 2 times [2021-10-13 19:17:43,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:43,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971471157] [2021-10-13 19:17:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:43,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:43,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:43,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971471157] [2021-10-13 19:17:43,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971471157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:43,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:43,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:17:43,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969509237] [2021-10-13 19:17:43,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:17:43,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:43,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:17:43,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:17:43,171 INFO L87 Difference]: Start difference. First operand 42480 states and 149560 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:46,361 INFO L93 Difference]: Finished difference Result 102766 states and 358237 transitions. [2021-10-13 19:17:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-13 19:17:46,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 19:17:46,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:47,802 INFO L225 Difference]: With dead ends: 102766 [2021-10-13 19:17:47,803 INFO L226 Difference]: Without dead ends: 102766 [2021-10-13 19:17:47,804 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 545.1ms TimeCoverageRelationStatistics Valid=776, Invalid=3130, Unknown=0, NotChecked=0, Total=3906 [2021-10-13 19:17:48,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102766 states. [2021-10-13 19:17:50,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102766 to 43348. [2021-10-13 19:17:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43348 states, 43297 states have (on average 3.5273575536411297) internal successors, (152724), 43347 states have internal predecessors, (152724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43348 states to 43348 states and 152724 transitions. [2021-10-13 19:17:50,666 INFO L78 Accepts]: Start accepts. Automaton has 43348 states and 152724 transitions. Word has length 20 [2021-10-13 19:17:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:50,666 INFO L470 AbstractCegarLoop]: Abstraction has 43348 states and 152724 transitions. [2021-10-13 19:17:50,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:50,666 INFO L276 IsEmpty]: Start isEmpty. Operand 43348 states and 152724 transitions. [2021-10-13 19:17:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:17:50,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:50,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:50,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-10-13 19:17:50,690 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:50,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:50,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1717760441, now seen corresponding path program 1 times [2021-10-13 19:17:50,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:50,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29751167] [2021-10-13 19:17:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:50,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:50,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:50,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:50,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29751167] [2021-10-13 19:17:50,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29751167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:50,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:50,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:17:50,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388666828] [2021-10-13 19:17:50,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:17:50,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:50,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:17:50,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:17:50,737 INFO L87 Difference]: Start difference. First operand 43348 states and 152724 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:52,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:52,218 INFO L93 Difference]: Finished difference Result 66566 states and 230477 transitions. [2021-10-13 19:17:52,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:17:52,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:17:52,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:52,642 INFO L225 Difference]: With dead ends: 66566 [2021-10-13 19:17:52,642 INFO L226 Difference]: Without dead ends: 66566 [2021-10-13 19:17:52,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 87.0ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:17:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66566 states. [2021-10-13 19:17:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66566 to 43164. [2021-10-13 19:17:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43164 states, 43113 states have (on average 3.523971887829657) internal successors, (151929), 43163 states have internal predecessors, (151929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:54,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43164 states to 43164 states and 151929 transitions. [2021-10-13 19:17:54,989 INFO L78 Accepts]: Start accepts. Automaton has 43164 states and 151929 transitions. Word has length 21 [2021-10-13 19:17:54,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:54,989 INFO L470 AbstractCegarLoop]: Abstraction has 43164 states and 151929 transitions. [2021-10-13 19:17:54,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 43164 states and 151929 transitions. [2021-10-13 19:17:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:17:55,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:55,049 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:55,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-13 19:17:55,049 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:55,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:55,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1720121859, now seen corresponding path program 1 times [2021-10-13 19:17:55,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:55,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662096029] [2021-10-13 19:17:55,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:55,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:55,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:55,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662096029] [2021-10-13 19:17:55,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662096029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:55,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:55,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:17:55,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160994685] [2021-10-13 19:17:55,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:17:55,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:55,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:17:55,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:17:55,083 INFO L87 Difference]: Start difference. First operand 43164 states and 151929 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:55,781 INFO L93 Difference]: Finished difference Result 58518 states and 199814 transitions. [2021-10-13 19:17:55,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:17:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:17:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:56,077 INFO L225 Difference]: With dead ends: 58518 [2021-10-13 19:17:56,078 INFO L226 Difference]: Without dead ends: 58518 [2021-10-13 19:17:56,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:17:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58518 states. [2021-10-13 19:17:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58518 to 38406. [2021-10-13 19:17:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38406 states, 38355 states have (on average 3.4909659757528355) internal successors, (133896), 38405 states have internal predecessors, (133896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:58,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38406 states to 38406 states and 133896 transitions. [2021-10-13 19:17:58,327 INFO L78 Accepts]: Start accepts. Automaton has 38406 states and 133896 transitions. Word has length 21 [2021-10-13 19:17:58,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:17:58,328 INFO L470 AbstractCegarLoop]: Abstraction has 38406 states and 133896 transitions. [2021-10-13 19:17:58,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 38406 states and 133896 transitions. [2021-10-13 19:17:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:17:58,352 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:17:58,353 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:17:58,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-13 19:17:58,353 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:17:58,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:17:58,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2017451867, now seen corresponding path program 2 times [2021-10-13 19:17:58,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:17:58,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364069092] [2021-10-13 19:17:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:17:58,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:17:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:17:58,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:17:58,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:17:58,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364069092] [2021-10-13 19:17:58,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364069092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:17:58,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:17:58,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:17:58,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679057729] [2021-10-13 19:17:58,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:17:58,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:17:58,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:17:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:17:58,391 INFO L87 Difference]: Start difference. First operand 38406 states and 133896 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:17:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:17:59,577 INFO L93 Difference]: Finished difference Result 49462 states and 170095 transitions. [2021-10-13 19:17:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:17:59,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:17:59,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:17:59,975 INFO L225 Difference]: With dead ends: 49462 [2021-10-13 19:17:59,975 INFO L226 Difference]: Without dead ends: 49462 [2021-10-13 19:17:59,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:18:00,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49462 states. [2021-10-13 19:18:01,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49462 to 38604. [2021-10-13 19:18:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38604 states, 38553 states have (on average 3.4882888491168003) internal successors, (134484), 38603 states have internal predecessors, (134484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38604 states to 38604 states and 134484 transitions. [2021-10-13 19:18:01,484 INFO L78 Accepts]: Start accepts. Automaton has 38604 states and 134484 transitions. Word has length 21 [2021-10-13 19:18:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:01,485 INFO L470 AbstractCegarLoop]: Abstraction has 38604 states and 134484 transitions. [2021-10-13 19:18:01,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:01,485 INFO L276 IsEmpty]: Start isEmpty. Operand 38604 states and 134484 transitions. [2021-10-13 19:18:01,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:18:01,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:01,504 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:01,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-10-13 19:18:01,505 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:18:01,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:01,505 INFO L82 PathProgramCache]: Analyzing trace with hash 347286813, now seen corresponding path program 3 times [2021-10-13 19:18:01,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:01,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555258854] [2021-10-13 19:18:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:01,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:01,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:01,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:01,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555258854] [2021-10-13 19:18:01,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555258854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:18:01,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:18:01,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:18:01,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809057878] [2021-10-13 19:18:01,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:18:01,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:01,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:18:01,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:18:01,578 INFO L87 Difference]: Start difference. First operand 38604 states and 134484 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:06,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:06,589 INFO L93 Difference]: Finished difference Result 129286 states and 449142 transitions. [2021-10-13 19:18:06,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-10-13 19:18:06,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:18:06,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:07,882 INFO L225 Difference]: With dead ends: 129286 [2021-10-13 19:18:07,882 INFO L226 Difference]: Without dead ends: 129286 [2021-10-13 19:18:07,883 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 651.2ms TimeCoverageRelationStatistics Valid=1108, Invalid=4592, Unknown=0, NotChecked=0, Total=5700 [2021-10-13 19:18:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129286 states. [2021-10-13 19:18:10,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129286 to 39330. [2021-10-13 19:18:10,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39330 states, 39279 states have (on average 3.4920695537055426) internal successors, (137165), 39329 states have internal predecessors, (137165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:11,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39330 states to 39330 states and 137165 transitions. [2021-10-13 19:18:11,241 INFO L78 Accepts]: Start accepts. Automaton has 39330 states and 137165 transitions. Word has length 21 [2021-10-13 19:18:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:11,242 INFO L470 AbstractCegarLoop]: Abstraction has 39330 states and 137165 transitions. [2021-10-13 19:18:11,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 39330 states and 137165 transitions. [2021-10-13 19:18:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:18:11,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:11,266 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:11,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-10-13 19:18:11,266 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:18:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:11,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1175217407, now seen corresponding path program 1 times [2021-10-13 19:18:11,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:11,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651766917] [2021-10-13 19:18:11,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:11,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:11,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:11,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651766917] [2021-10-13 19:18:11,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651766917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:18:11,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:18:11,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:18:11,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956298825] [2021-10-13 19:18:11,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:18:11,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:11,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:18:11,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:18:11,324 INFO L87 Difference]: Start difference. First operand 39330 states and 137165 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:12,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:12,690 INFO L93 Difference]: Finished difference Result 42798 states and 148143 transitions. [2021-10-13 19:18:12,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:18:12,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:18:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:12,966 INFO L225 Difference]: With dead ends: 42798 [2021-10-13 19:18:12,967 INFO L226 Difference]: Without dead ends: 42798 [2021-10-13 19:18:12,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:18:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42798 states. [2021-10-13 19:18:14,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42798 to 37460. [2021-10-13 19:18:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37460 states, 37409 states have (on average 3.4780935069101018) internal successors, (130112), 37459 states have internal predecessors, (130112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37460 states to 37460 states and 130112 transitions. [2021-10-13 19:18:14,782 INFO L78 Accepts]: Start accepts. Automaton has 37460 states and 130112 transitions. Word has length 21 [2021-10-13 19:18:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:14,783 INFO L470 AbstractCegarLoop]: Abstraction has 37460 states and 130112 transitions. [2021-10-13 19:18:14,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 37460 states and 130112 transitions. [2021-10-13 19:18:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:18:14,811 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:14,811 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:14,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-10-13 19:18:14,812 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:18:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:14,812 INFO L82 PathProgramCache]: Analyzing trace with hash 17527766, now seen corresponding path program 1 times [2021-10-13 19:18:14,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:14,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582378306] [2021-10-13 19:18:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:14,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:15,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:15,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582378306] [2021-10-13 19:18:15,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582378306] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:18:15,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:18:15,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 19:18:15,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535613939] [2021-10-13 19:18:15,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:18:15,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:15,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:18:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:18:15,434 INFO L87 Difference]: Start difference. First operand 37460 states and 130112 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:17,447 INFO L93 Difference]: Finished difference Result 77518 states and 266337 transitions. [2021-10-13 19:18:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-13 19:18:17,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 19:18:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:18,434 INFO L225 Difference]: With dead ends: 77518 [2021-10-13 19:18:18,435 INFO L226 Difference]: Without dead ends: 77518 [2021-10-13 19:18:18,435 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 420.9ms TimeCoverageRelationStatistics Valid=545, Invalid=1807, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 19:18:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77518 states. [2021-10-13 19:18:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77518 to 37278. [2021-10-13 19:18:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37278 states, 37228 states have (on average 3.4774631997421297) internal successors, (129459), 37277 states have internal predecessors, (129459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:20,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37278 states to 37278 states and 129459 transitions. [2021-10-13 19:18:20,455 INFO L78 Accepts]: Start accepts. Automaton has 37278 states and 129459 transitions. Word has length 22 [2021-10-13 19:18:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:20,456 INFO L470 AbstractCegarLoop]: Abstraction has 37278 states and 129459 transitions. [2021-10-13 19:18:20,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 37278 states and 129459 transitions. [2021-10-13 19:18:20,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:18:20,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:20,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:20,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-10-13 19:18:20,483 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:18:20,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:20,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1657400557, now seen corresponding path program 1 times [2021-10-13 19:18:20,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:20,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999909489] [2021-10-13 19:18:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:20,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:20,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:20,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999909489] [2021-10-13 19:18:20,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999909489] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:18:20,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:18:20,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:18:20,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241701632] [2021-10-13 19:18:20,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:18:20,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:20,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:18:20,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:18:20,557 INFO L87 Difference]: Start difference. First operand 37278 states and 129459 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:22,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:18:22,835 INFO L93 Difference]: Finished difference Result 77392 states and 266693 transitions. [2021-10-13 19:18:22,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-13 19:18:22,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 19:18:22,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:18:23,909 INFO L225 Difference]: With dead ends: 77392 [2021-10-13 19:18:23,909 INFO L226 Difference]: Without dead ends: 77392 [2021-10-13 19:18:23,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 317.1ms TimeCoverageRelationStatistics Valid=401, Invalid=1491, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 19:18:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77392 states. [2021-10-13 19:18:25,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77392 to 37222. [2021-10-13 19:18:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37222 states, 37172 states have (on average 3.477160228128699) internal successors, (129253), 37221 states have internal predecessors, (129253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37222 states to 37222 states and 129253 transitions. [2021-10-13 19:18:25,813 INFO L78 Accepts]: Start accepts. Automaton has 37222 states and 129253 transitions. Word has length 22 [2021-10-13 19:18:25,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:18:25,813 INFO L470 AbstractCegarLoop]: Abstraction has 37222 states and 129253 transitions. [2021-10-13 19:18:25,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:18:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 37222 states and 129253 transitions. [2021-10-13 19:18:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 19:18:25,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:18:25,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:18:25,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-10-13 19:18:25,834 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-13 19:18:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:18:25,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1871454831, now seen corresponding path program 1 times [2021-10-13 19:18:25,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:18:25,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748803678] [2021-10-13 19:18:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:18:25,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:18:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:18:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:18:25,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:18:25,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748803678] [2021-10-13 19:18:25,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748803678] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:18:25,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:18:25,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:18:25,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556879574] [2021-10-13 19:18:25,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:18:25,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:18:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:18:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:18:25,870 INFO L87 Difference]: Start difference. First operand 37222 states and 129253 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-10-13 19:18:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 19:18:26,893 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-10-13 19:18:26,895 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). [2021-10-13 19:18:26,898 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,903 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,903 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,903 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,903 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,904 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,904 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,904 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,904 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,904 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:18:26,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:18:26,905 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 19:18:26,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,906 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:18:26,916 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:18:26,916 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:18:26,917 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 19:18:26,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:18:26 BasicIcfg [2021-10-13 19:18:26,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:18:26,921 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-13 19:18:26,924 INFO L168 Benchmark]: Toolchain (without parser) took 552478.48 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 125.5 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2021-10-13 19:18:26,924 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:18:26,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 113.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:18:26,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.12 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 111.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:18:26,926 INFO L168 Benchmark]: Boogie Preprocessor took 83.52 ms. Allocated memory is still 151.0 MB. Free memory was 111.5 MB in the beginning and 110.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:18:26,926 INFO L168 Benchmark]: RCFGBuilder took 876.46 ms. Allocated memory is still 151.0 MB. Free memory was 110.0 MB in the beginning and 124.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:18:26,926 INFO L168 Benchmark]: TraceAbstraction took 551089.97 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 124.4 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2021-10-13 19:18:26,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 313.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 113.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 102.12 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 111.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 83.52 ms. Allocated memory is still 151.0 MB. Free memory was 111.5 MB in the beginning and 110.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 876.46 ms. Allocated memory is still 151.0 MB. Free memory was 110.0 MB in the beginning and 124.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 551089.97 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 124.4 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8063.0ms, 253 PlacesBefore, 86 PlacesAfterwards, 263 TransitionsBefore, 84 TransitionsAfterwards, 21384 CoEnabledTransitionPairs, 8 FixpointIterations, 73 TrivialSequentialCompositions, 120 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 39 ConcurrentYvCompositions, 12 ChoiceCompositions, 249 TotalNumberOfCompositions, 64020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30766, positive: 30034, positive conditional: 0, positive unconditional: 30034, negative: 732, negative conditional: 0, negative unconditional: 732, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15469, positive: 15295, positive conditional: 0, positive unconditional: 15295, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15469, positive: 15227, positive conditional: 0, positive unconditional: 15227, negative: 242, negative conditional: 0, negative unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 242, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 345, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 269, negative conditional: 0, negative unconditional: 269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30766, positive: 14739, positive conditional: 0, positive unconditional: 14739, negative: 558, negative conditional: 0, negative unconditional: 558, unknown: 15469, unknown conditional: 0, unknown unconditional: 15469] , Statistics on independence cache: Total cache size (in pairs): 1532, Positive cache size: 1452, Positive conditional cache size: 0, Positive unconditional cache size: 1452, Negative cache size: 80, Negative conditional cache size: 0, Negative unconditional cache size: 80 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (37222states) and FLOYD_HOARE automaton (currently 14 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14303 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 550768.0ms, OverallIterations: 74, TraceHistogramMax: 1, EmptinessCheckTime: 2510.6ms, AutomataDifference: 253463.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9268.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14198 SDtfs, 41157 SDslu, 48382 SDs, 0 SdLazy, 36205 SolverSat, 5630 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30212.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1523 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14974 ImplicationChecksByTransitivity, 9677.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=85514occurred in iteration=32, InterpolantAutomatonStates: 1420, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 278822.5ms AutomataMinimizationTime, 73 MinimizatonAttempts, 3323942 StatesRemovedByMinimization, 73 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 190.4ms SsaConstructionTime, 1144.9ms SatisfiabilityAnalysisTime, 4310.6ms InterpolantComputationTime, 1141 NumberOfCodeBlocks, 1141 NumberOfCodeBlocksAsserted, 74 NumberOfCheckSat, 1067 ConstructedInterpolants, 0 QuantifiedInterpolants, 2925 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 74 InterpolantComputations, 74 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown