/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-8c2bbc9 [2021-10-08 15:48:36,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:48:36,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:48:36,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 15:48:37,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 15:48:37,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:48:37,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:48:37,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:48:37,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:48:37,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:48:37,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:48:37,095 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:48:37,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:48:37,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:48:37,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 15:48:37,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:48:37,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:48:37,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:48:37,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:48:37,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:48:37,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:48:37,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 15:48:37,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:48:37,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:48:37,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:48:37,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:48:37,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:48:37,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:48:37,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:48:37,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:48:37,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:48:37,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:48:37,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:48:37,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:48:37,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:48:37,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:48:37,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:48:37,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 15:48:37,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:48:37,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:48:37,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:48:37,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:48:37,516 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:48:37,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-08 15:48:37,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc5e02931/1577e9c58241436fb87348ea37f7b958/FLAG0b5b6936e [2021-10-08 15:48:38,279 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:48:38,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-08 15:48:38,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc5e02931/1577e9c58241436fb87348ea37f7b958/FLAG0b5b6936e [2021-10-08 15:48:38,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc5e02931/1577e9c58241436fb87348ea37f7b958 [2021-10-08 15:48:38,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 15:48:38,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 15:48:38,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 15:48:38,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 15:48:38,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 15:48:38,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495e52b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:38, skipping insertion in model container [2021-10-08 15:48:38,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:48:38" (1/1) ... [2021-10-08 15:48:38,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 15:48:38,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 15:48:38,951 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[3401,3414] [2021-10-08 15:48:38,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:48:38,965 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 15:48:39,012 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[3401,3414] [2021-10-08 15:48:39,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:48:39,036 INFO L208 MainTranslator]: Completed translation [2021-10-08 15:48:39,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39 WrapperNode [2021-10-08 15:48:39,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 15:48:39,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 15:48:39,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 15:48:39,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 15:48:39,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 15:48:39,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 15:48:39,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 15:48:39,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 15:48:39,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 15:48:39,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 15:48:39,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 15:48:39,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 15:48:39,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (1/1) ... [2021-10-08 15:48:39,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:48:39,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:48:39,206 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) [2021-10-08 15:48:39,231 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 [2021-10-08 15:48:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 15:48:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 15:48:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 15:48:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 15:48:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 15:48:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 15:48:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 15:48:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 15:48:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 15:48:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 15:48:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 15:48:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 15:48:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 15:48:39,286 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 15:48:39,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 15:48:39,900 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-08 15:48:39,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:39 BoogieIcfgContainer [2021-10-08 15:48:39,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 15:48:39,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 15:48:39,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 15:48:39,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 15:48:39,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 03:48:38" (1/3) ... [2021-10-08 15:48:39,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6353dd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:48:39, skipping insertion in model container [2021-10-08 15:48:39,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:48:39" (2/3) ... [2021-10-08 15:48:39,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6353dd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:48:39, skipping insertion in model container [2021-10-08 15:48:39,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:48:39" (3/3) ... [2021-10-08 15:48:39,913 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2021-10-08 15:48:39,920 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 15:48:39,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 15:48:39,920 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-08 15:48:39,921 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 15:48:39,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,978 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,978 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,989 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,990 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,991 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,992 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,992 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,992 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,993 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,993 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,993 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,993 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,994 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,994 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,994 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,994 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,995 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,995 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,995 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,995 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,996 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,997 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,998 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,999 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:39,999 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,000 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,000 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,001 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,002 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,002 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,002 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,004 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,004 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,004 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,004 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,005 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,005 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,005 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,005 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,006 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,006 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,006 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,007 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,007 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,008 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,009 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,009 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,009 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,012 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,015 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,015 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,016 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,018 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,021 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,022 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,030 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,034 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,035 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,036 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,036 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,036 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,037 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,037 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,037 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,037 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,040 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,040 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,040 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,040 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,041 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,041 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,044 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,044 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,044 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,044 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,045 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,045 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,045 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,045 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,046 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,046 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,046 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,046 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,050 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,050 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,051 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,051 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,052 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,052 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,052 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,052 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,060 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,060 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,061 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,061 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,061 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,061 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,062 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,062 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,062 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,062 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,063 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,063 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,063 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,063 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,064 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,065 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,067 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,074 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,075 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,075 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,076 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,076 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,077 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,077 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,077 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,077 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,078 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,078 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,078 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,078 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,079 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,079 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,079 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,079 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,080 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,080 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,081 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,082 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,082 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,084 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,088 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,093 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,093 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,099 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,103 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,103 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,104 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,104 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,104 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,104 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,104 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,105 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,105 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,105 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,105 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,105 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,106 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,106 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,106 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,107 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,107 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,111 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,111 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,113 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,113 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,120 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,120 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,123 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,123 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,124 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,124 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,124 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,124 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,125 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:48:40,134 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 15:48:40,191 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 15:48:40,201 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 [2021-10-08 15:48:40,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-08 15:48:40,262 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 15:48:40,279 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 263 transitions, 550 flow [2021-10-08 15:48:40,288 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 263 transitions, 550 flow [2021-10-08 15:48:40,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 263 transitions, 550 flow [2021-10-08 15:48:40,451 INFO L129 PetriNetUnfolder]: 20/260 cut-off events. [2021-10-08 15:48:40,452 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 15:48:40,467 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. [2021-10-08 15:48:40,489 INFO L116 LiptonReduction]: Number of co-enabled transitions 21384 [2021-10-08 15:48:47,895 INFO L131 LiptonReduction]: Checked pairs total: 64020 [2021-10-08 15:48:47,895 INFO L133 LiptonReduction]: Total number of compositions: 249 [2021-10-08 15:48:47,906 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 84 transitions, 192 flow [2021-10-08 15:48:48,884 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) [2021-10-08 15:48:48,953 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) [2021-10-08 15:48:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 15:48:48,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:48,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 15:48:48,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:48:48,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:48,969 INFO L82 PathProgramCache]: Analyzing trace with hash 780287375, now seen corresponding path program 1 times [2021-10-08 15:48:48,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:48,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425061099] [2021-10-08 15:48:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:48,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:49,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:49,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425061099] [2021-10-08 15:48:49,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425061099] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:49,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:49,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:48:49,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688676543] [2021-10-08 15:48:49,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:48:49,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:49,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:48:49,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:49,430 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) [2021-10-08 15:48:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:51,213 INFO L93 Difference]: Finished difference Result 49056 states and 177101 transitions. [2021-10-08 15:48:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:48:51,215 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 [2021-10-08 15:48:51,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:52,155 INFO L225 Difference]: With dead ends: 49056 [2021-10-08 15:48:52,156 INFO L226 Difference]: Without dead ends: 48996 [2021-10-08 15:48:52,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:48:52,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48996 states. [2021-10-08 15:48:54,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48996 to 23050. [2021-10-08 15:48:54,313 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) [2021-10-08 15:48:55,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23050 states to 23050 states and 85346 transitions. [2021-10-08 15:48:55,089 INFO L78 Accepts]: Start accepts. Automaton has 23050 states and 85346 transitions. Word has length 6 [2021-10-08 15:48:55,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:55,090 INFO L470 AbstractCegarLoop]: Abstraction has 23050 states and 85346 transitions. [2021-10-08 15:48:55,090 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) [2021-10-08 15:48:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 23050 states and 85346 transitions. [2021-10-08 15:48:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 15:48:55,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:55,092 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 15:48:55,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 15:48:55,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:48:55,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:55,094 INFO L82 PathProgramCache]: Analyzing trace with hash 780287173, now seen corresponding path program 1 times [2021-10-08 15:48:55,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:55,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728852071] [2021-10-08 15:48:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:55,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:55,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:55,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728852071] [2021-10-08 15:48:55,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728852071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:55,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:55,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:48:55,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441104940] [2021-10-08 15:48:55,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:48:55,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:55,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:48:55,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:48:55,182 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) [2021-10-08 15:48:55,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:48:55,959 INFO L93 Difference]: Finished difference Result 26574 states and 98588 transitions. [2021-10-08 15:48:55,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:48:55,960 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 [2021-10-08 15:48:55,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:48:56,255 INFO L225 Difference]: With dead ends: 26574 [2021-10-08 15:48:56,255 INFO L226 Difference]: Without dead ends: 26574 [2021-10-08 15:48:56,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:48:56,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26574 states. [2021-10-08 15:48:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26574 to 24722. [2021-10-08 15:48:57,755 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) [2021-10-08 15:48:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24722 states to 24722 states and 91982 transitions. [2021-10-08 15:48:57,924 INFO L78 Accepts]: Start accepts. Automaton has 24722 states and 91982 transitions. Word has length 6 [2021-10-08 15:48:57,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:48:57,925 INFO L470 AbstractCegarLoop]: Abstraction has 24722 states and 91982 transitions. [2021-10-08 15:48:57,925 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) [2021-10-08 15:48:57,925 INFO L276 IsEmpty]: Start isEmpty. Operand 24722 states and 91982 transitions. [2021-10-08 15:48:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:48:57,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:48:57,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:48:57,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-08 15:48:57,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:48:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:48:57,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1768313786, now seen corresponding path program 1 times [2021-10-08 15:48:57,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:48:57,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589363178] [2021-10-08 15:48:57,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:48:57,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:48:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:48:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:48:58,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:48:58,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589363178] [2021-10-08 15:48:58,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589363178] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:48:58,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:48:58,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:48:58,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069270615] [2021-10-08 15:48:58,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:48:58,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:48:58,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:48:58,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:48:58,010 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) [2021-10-08 15:49:00,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:00,112 INFO L93 Difference]: Finished difference Result 91108 states and 326528 transitions. [2021-10-08 15:49:00,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 15:49:00,113 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 [2021-10-08 15:49:00,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:01,193 INFO L225 Difference]: With dead ends: 91108 [2021-10-08 15:49:01,194 INFO L226 Difference]: Without dead ends: 91108 [2021-10-08 15:49:01,195 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 137.6ms TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2021-10-08 15:49:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91108 states. [2021-10-08 15:49:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91108 to 33080. [2021-10-08 15:49:03,381 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) [2021-10-08 15:49:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33080 states to 33080 states and 125128 transitions. [2021-10-08 15:49:03,525 INFO L78 Accepts]: Start accepts. Automaton has 33080 states and 125128 transitions. Word has length 8 [2021-10-08 15:49:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:03,526 INFO L470 AbstractCegarLoop]: Abstraction has 33080 states and 125128 transitions. [2021-10-08 15:49:03,526 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) [2021-10-08 15:49:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 33080 states and 125128 transitions. [2021-10-08 15:49:03,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:49:03,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:03,528 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:03,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-08 15:49:03,528 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1768313988, now seen corresponding path program 1 times [2021-10-08 15:49:03,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:03,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119700570] [2021-10-08 15:49:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:03,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:03,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:03,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119700570] [2021-10-08 15:49:03,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119700570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:03,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:03,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:49:03,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073433253] [2021-10-08 15:49:03,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:49:03,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:03,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:49:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:49:03,588 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) [2021-10-08 15:49:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:04,407 INFO L93 Difference]: Finished difference Result 43866 states and 169293 transitions. [2021-10-08 15:49:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:49:04,408 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 [2021-10-08 15:49:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:04,626 INFO L225 Difference]: With dead ends: 43866 [2021-10-08 15:49:04,626 INFO L226 Difference]: Without dead ends: 43866 [2021-10-08 15:49:04,626 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:49:04,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43866 states. [2021-10-08 15:49:06,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43866 to 41168. [2021-10-08 15:49:06,334 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) [2021-10-08 15:49:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41168 states to 41168 states and 159564 transitions. [2021-10-08 15:49:06,591 INFO L78 Accepts]: Start accepts. Automaton has 41168 states and 159564 transitions. Word has length 8 [2021-10-08 15:49:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:06,591 INFO L470 AbstractCegarLoop]: Abstraction has 41168 states and 159564 transitions. [2021-10-08 15:49:06,591 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) [2021-10-08 15:49:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 41168 states and 159564 transitions. [2021-10-08 15:49:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:49:06,593 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:06,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:06,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-08 15:49:06,594 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:06,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:06,594 INFO L82 PathProgramCache]: Analyzing trace with hash -2068639182, now seen corresponding path program 1 times [2021-10-08 15:49:06,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:06,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440467005] [2021-10-08 15:49:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:06,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:06,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:06,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440467005] [2021-10-08 15:49:06,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440467005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:06,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:06,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:49:06,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417705317] [2021-10-08 15:49:06,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:49:06,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:06,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:49:06,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:49:06,661 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) [2021-10-08 15:49:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:08,737 INFO L93 Difference]: Finished difference Result 94898 states and 360387 transitions. [2021-10-08 15:49:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:49:08,738 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 [2021-10-08 15:49:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:09,411 INFO L225 Difference]: With dead ends: 94898 [2021-10-08 15:49:09,411 INFO L226 Difference]: Without dead ends: 94898 [2021-10-08 15:49:09,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 41.8ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:49:09,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94898 states. [2021-10-08 15:49:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94898 to 44536. [2021-10-08 15:49:11,781 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) [2021-10-08 15:49:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44536 states to 44536 states and 172885 transitions. [2021-10-08 15:49:12,448 INFO L78 Accepts]: Start accepts. Automaton has 44536 states and 172885 transitions. Word has length 8 [2021-10-08 15:49:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:12,448 INFO L470 AbstractCegarLoop]: Abstraction has 44536 states and 172885 transitions. [2021-10-08 15:49:12,448 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) [2021-10-08 15:49:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 44536 states and 172885 transitions. [2021-10-08 15:49:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 15:49:12,452 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:12,453 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:12,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 15:49:12,453 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:12,454 INFO L82 PathProgramCache]: Analyzing trace with hash -2068639384, now seen corresponding path program 1 times [2021-10-08 15:49:12,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:12,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635960861] [2021-10-08 15:49:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:12,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:12,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:12,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:12,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635960861] [2021-10-08 15:49:12,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635960861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:12,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:12,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:49:12,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356915582] [2021-10-08 15:49:12,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:49:12,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:12,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:49:12,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:49:12,552 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) [2021-10-08 15:49:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:13,997 INFO L93 Difference]: Finished difference Result 89060 states and 338540 transitions. [2021-10-08 15:49:13,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:49:13,997 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 [2021-10-08 15:49:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:14,514 INFO L225 Difference]: With dead ends: 89060 [2021-10-08 15:49:14,514 INFO L226 Difference]: Without dead ends: 89060 [2021-10-08 15:49:14,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 39.1ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:49:15,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89060 states. [2021-10-08 15:49:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89060 to 47846. [2021-10-08 15:49:16,995 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) [2021-10-08 15:49:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47846 states to 47846 states and 185920 transitions. [2021-10-08 15:49:17,692 INFO L78 Accepts]: Start accepts. Automaton has 47846 states and 185920 transitions. Word has length 8 [2021-10-08 15:49:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:17,693 INFO L470 AbstractCegarLoop]: Abstraction has 47846 states and 185920 transitions. [2021-10-08 15:49:17,693 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) [2021-10-08 15:49:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 47846 states and 185920 transitions. [2021-10-08 15:49:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:49:17,694 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:17,695 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:17,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-08 15:49:17,695 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:17,696 INFO L82 PathProgramCache]: Analyzing trace with hash -843448665, now seen corresponding path program 1 times [2021-10-08 15:49:17,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:17,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387998423] [2021-10-08 15:49:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:17,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:17,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:17,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387998423] [2021-10-08 15:49:17,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387998423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:17,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:17,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:49:17,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121177923] [2021-10-08 15:49:17,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:49:17,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:17,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:49:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:49:17,754 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) [2021-10-08 15:49:18,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:18,857 INFO L93 Difference]: Finished difference Result 62786 states and 247266 transitions. [2021-10-08 15:49:18,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:49:18,858 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 [2021-10-08 15:49:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:19,245 INFO L225 Difference]: With dead ends: 62786 [2021-10-08 15:49:19,245 INFO L226 Difference]: Without dead ends: 62786 [2021-10-08 15:49:19,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:49:19,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62786 states. [2021-10-08 15:49:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62786 to 54778. [2021-10-08 15:49:21,288 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) [2021-10-08 15:49:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54778 states to 54778 states and 215296 transitions. [2021-10-08 15:49:21,531 INFO L78 Accepts]: Start accepts. Automaton has 54778 states and 215296 transitions. Word has length 10 [2021-10-08 15:49:21,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:21,532 INFO L470 AbstractCegarLoop]: Abstraction has 54778 states and 215296 transitions. [2021-10-08 15:49:21,532 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) [2021-10-08 15:49:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand 54778 states and 215296 transitions. [2021-10-08 15:49:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:49:21,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:21,534 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:21,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-08 15:49:21,535 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:21,536 INFO L82 PathProgramCache]: Analyzing trace with hash -843448667, now seen corresponding path program 1 times [2021-10-08 15:49:21,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:21,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611093086] [2021-10-08 15:49:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:21,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:21,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:21,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611093086] [2021-10-08 15:49:21,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611093086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:21,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:21,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:49:21,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177811707] [2021-10-08 15:49:21,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:49:21,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:21,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:49:21,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:49:21,594 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) [2021-10-08 15:49:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:23,122 INFO L93 Difference]: Finished difference Result 79660 states and 308477 transitions. [2021-10-08 15:49:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:49:23,122 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 [2021-10-08 15:49:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:24,216 INFO L225 Difference]: With dead ends: 79660 [2021-10-08 15:49:24,216 INFO L226 Difference]: Without dead ends: 79660 [2021-10-08 15:49:24,217 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.0ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:49:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79660 states. [2021-10-08 15:49:26,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79660 to 54836. [2021-10-08 15:49:26,576 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) [2021-10-08 15:49:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54836 states to 54836 states and 214893 transitions. [2021-10-08 15:49:27,085 INFO L78 Accepts]: Start accepts. Automaton has 54836 states and 214893 transitions. Word has length 10 [2021-10-08 15:49:27,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:27,085 INFO L470 AbstractCegarLoop]: Abstraction has 54836 states and 214893 transitions. [2021-10-08 15:49:27,086 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) [2021-10-08 15:49:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 54836 states and 214893 transitions. [2021-10-08 15:49:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:49:27,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:27,088 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:27,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-08 15:49:27,088 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:27,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:27,089 INFO L82 PathProgramCache]: Analyzing trace with hash -339849195, now seen corresponding path program 1 times [2021-10-08 15:49:27,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:27,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263541377] [2021-10-08 15:49:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:27,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:27,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:27,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263541377] [2021-10-08 15:49:27,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263541377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:27,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:27,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:49:27,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194542026] [2021-10-08 15:49:27,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:49:27,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:49:27,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:49:27,163 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) [2021-10-08 15:49:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:28,643 INFO L93 Difference]: Finished difference Result 105644 states and 405950 transitions. [2021-10-08 15:49:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:49:28,643 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 [2021-10-08 15:49:28,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:30,100 INFO L225 Difference]: With dead ends: 105644 [2021-10-08 15:49:30,101 INFO L226 Difference]: Without dead ends: 105644 [2021-10-08 15:49:30,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:49:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105644 states. [2021-10-08 15:49:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105644 to 51974. [2021-10-08 15:49:32,566 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) [2021-10-08 15:49:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51974 states to 51974 states and 203788 transitions. [2021-10-08 15:49:32,815 INFO L78 Accepts]: Start accepts. Automaton has 51974 states and 203788 transitions. Word has length 10 [2021-10-08 15:49:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:32,815 INFO L470 AbstractCegarLoop]: Abstraction has 51974 states and 203788 transitions. [2021-10-08 15:49:32,815 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) [2021-10-08 15:49:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 51974 states and 203788 transitions. [2021-10-08 15:49:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 15:49:32,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:32,818 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:32,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-08 15:49:32,818 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:32,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:32,819 INFO L82 PathProgramCache]: Analyzing trace with hash 602399785, now seen corresponding path program 1 times [2021-10-08 15:49:32,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:32,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174778038] [2021-10-08 15:49:32,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:32,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:32,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:32,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174778038] [2021-10-08 15:49:32,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174778038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:32,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:32,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:49:32,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37897637] [2021-10-08 15:49:32,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:49:32,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:32,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:49:32,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:49:32,884 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) [2021-10-08 15:49:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:36,338 INFO L93 Difference]: Finished difference Result 161218 states and 601925 transitions. [2021-10-08 15:49:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-08 15:49:36,338 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 [2021-10-08 15:49:36,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:38,081 INFO L225 Difference]: With dead ends: 161218 [2021-10-08 15:49:38,081 INFO L226 Difference]: Without dead ends: 161218 [2021-10-08 15:49:38,082 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 184.8ms TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2021-10-08 15:49:38,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161218 states. [2021-10-08 15:49:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161218 to 48710. [2021-10-08 15:49:41,072 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) [2021-10-08 15:49:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48710 states to 48710 states and 189271 transitions. [2021-10-08 15:49:41,804 INFO L78 Accepts]: Start accepts. Automaton has 48710 states and 189271 transitions. Word has length 10 [2021-10-08 15:49:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:41,805 INFO L470 AbstractCegarLoop]: Abstraction has 48710 states and 189271 transitions. [2021-10-08 15:49:41,805 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) [2021-10-08 15:49:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 48710 states and 189271 transitions. [2021-10-08 15:49:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:49:41,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:41,806 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:41,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-08 15:49:41,807 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:41,807 INFO L82 PathProgramCache]: Analyzing trace with hash -443700866, now seen corresponding path program 1 times [2021-10-08 15:49:41,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:41,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135291037] [2021-10-08 15:49:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:41,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:41,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:41,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135291037] [2021-10-08 15:49:41,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135291037] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:41,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:41,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:49:41,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742649735] [2021-10-08 15:49:41,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:49:41,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:41,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:49:41,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:49:41,878 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) [2021-10-08 15:49:43,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:43,680 INFO L93 Difference]: Finished difference Result 95262 states and 364421 transitions. [2021-10-08 15:49:43,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:49:43,681 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 [2021-10-08 15:49:43,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:44,283 INFO L225 Difference]: With dead ends: 95262 [2021-10-08 15:49:44,284 INFO L226 Difference]: Without dead ends: 95262 [2021-10-08 15:49:44,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:49:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95262 states. [2021-10-08 15:49:47,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95262 to 54218. [2021-10-08 15:49:47,217 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) [2021-10-08 15:49:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54218 states to 54218 states and 211984 transitions. [2021-10-08 15:49:48,099 INFO L78 Accepts]: Start accepts. Automaton has 54218 states and 211984 transitions. Word has length 11 [2021-10-08 15:49:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:48,100 INFO L470 AbstractCegarLoop]: Abstraction has 54218 states and 211984 transitions. [2021-10-08 15:49:48,100 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) [2021-10-08 15:49:48,100 INFO L276 IsEmpty]: Start isEmpty. Operand 54218 states and 211984 transitions. [2021-10-08 15:49:48,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:49:48,104 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:48,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:48,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-08 15:49:48,109 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:48,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:48,110 INFO L82 PathProgramCache]: Analyzing trace with hash -443700868, now seen corresponding path program 1 times [2021-10-08 15:49:48,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:48,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864465315] [2021-10-08 15:49:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:48,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:48,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:48,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864465315] [2021-10-08 15:49:48,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864465315] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:48,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:48,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:49:48,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975118397] [2021-10-08 15:49:48,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:49:48,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:48,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:49:48,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:49:48,260 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) [2021-10-08 15:49:50,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:50,770 INFO L93 Difference]: Finished difference Result 133366 states and 504616 transitions. [2021-10-08 15:49:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:49:50,770 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 [2021-10-08 15:49:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:52,500 INFO L225 Difference]: With dead ends: 133366 [2021-10-08 15:49:52,501 INFO L226 Difference]: Without dead ends: 133366 [2021-10-08 15:49:52,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 67.7ms TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-10-08 15:49:52,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133366 states. [2021-10-08 15:49:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133366 to 53236. [2021-10-08 15:49:55,245 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) [2021-10-08 15:49:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53236 states to 53236 states and 206017 transitions. [2021-10-08 15:49:55,945 INFO L78 Accepts]: Start accepts. Automaton has 53236 states and 206017 transitions. Word has length 11 [2021-10-08 15:49:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:49:55,948 INFO L470 AbstractCegarLoop]: Abstraction has 53236 states and 206017 transitions. [2021-10-08 15:49:55,948 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) [2021-10-08 15:49:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 53236 states and 206017 transitions. [2021-10-08 15:49:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:49:55,951 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:49:55,951 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:49:55,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-08 15:49:55,964 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:49:55,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:49:55,965 INFO L82 PathProgramCache]: Analyzing trace with hash -379139712, now seen corresponding path program 1 times [2021-10-08 15:49:55,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:49:55,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700083539] [2021-10-08 15:49:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:49:55,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:49:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:49:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:49:56,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:49:56,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700083539] [2021-10-08 15:49:56,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700083539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:49:56,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:49:56,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:49:56,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314595882] [2021-10-08 15:49:56,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:49:56,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:49:56,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:49:56,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:49:56,091 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) [2021-10-08 15:49:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:49:57,670 INFO L93 Difference]: Finished difference Result 90830 states and 343878 transitions. [2021-10-08 15:49:57,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 15:49:57,672 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 [2021-10-08 15:49:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:49:58,462 INFO L225 Difference]: With dead ends: 90830 [2021-10-08 15:49:58,463 INFO L226 Difference]: Without dead ends: 90830 [2021-10-08 15:49:58,463 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 [2021-10-08 15:49:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90830 states. [2021-10-08 15:50:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90830 to 55506. [2021-10-08 15:50:00,768 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) [2021-10-08 15:50:01,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55506 states to 55506 states and 215270 transitions. [2021-10-08 15:50:01,015 INFO L78 Accepts]: Start accepts. Automaton has 55506 states and 215270 transitions. Word has length 11 [2021-10-08 15:50:01,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:01,015 INFO L470 AbstractCegarLoop]: Abstraction has 55506 states and 215270 transitions. [2021-10-08 15:50:01,015 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) [2021-10-08 15:50:01,015 INFO L276 IsEmpty]: Start isEmpty. Operand 55506 states and 215270 transitions. [2021-10-08 15:50:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:50:01,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:01,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:01,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-08 15:50:01,017 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:01,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:01,017 INFO L82 PathProgramCache]: Analyzing trace with hash -379139714, now seen corresponding path program 1 times [2021-10-08 15:50:01,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:01,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549833569] [2021-10-08 15:50:01,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:01,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:01,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:01,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549833569] [2021-10-08 15:50:01,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549833569] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:01,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:01,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:50:01,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922809659] [2021-10-08 15:50:01,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:50:01,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:01,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:50:01,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:50:01,075 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) [2021-10-08 15:50:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:03,784 INFO L93 Difference]: Finished difference Result 120174 states and 457384 transitions. [2021-10-08 15:50:03,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-08 15:50:03,791 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 [2021-10-08 15:50:03,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:04,629 INFO L225 Difference]: With dead ends: 120174 [2021-10-08 15:50:04,629 INFO L226 Difference]: Without dead ends: 120174 [2021-10-08 15:50:04,630 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 64.5ms TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:50:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120174 states. [2021-10-08 15:50:07,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120174 to 65686. [2021-10-08 15:50:07,989 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) [2021-10-08 15:50:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65686 states to 65686 states and 256351 transitions. [2021-10-08 15:50:08,291 INFO L78 Accepts]: Start accepts. Automaton has 65686 states and 256351 transitions. Word has length 11 [2021-10-08 15:50:08,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:08,291 INFO L470 AbstractCegarLoop]: Abstraction has 65686 states and 256351 transitions. [2021-10-08 15:50:08,291 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) [2021-10-08 15:50:08,291 INFO L276 IsEmpty]: Start isEmpty. Operand 65686 states and 256351 transitions. [2021-10-08 15:50:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-08 15:50:08,294 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:08,294 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:08,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-08 15:50:08,295 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:08,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:08,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1665169359, now seen corresponding path program 1 times [2021-10-08 15:50:08,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:08,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738355688] [2021-10-08 15:50:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:08,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:08,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:08,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738355688] [2021-10-08 15:50:08,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738355688] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:08,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:08,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:50:08,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213045057] [2021-10-08 15:50:08,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:50:08,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:08,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:50:08,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:50:08,328 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) [2021-10-08 15:50:09,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:09,672 INFO L93 Difference]: Finished difference Result 62494 states and 242885 transitions. [2021-10-08 15:50:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:50:09,672 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 [2021-10-08 15:50:09,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:10,003 INFO L225 Difference]: With dead ends: 62494 [2021-10-08 15:50:10,003 INFO L226 Difference]: Without dead ends: 62494 [2021-10-08 15:50:10,011 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:50:10,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62494 states. [2021-10-08 15:50:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62494 to 62160. [2021-10-08 15:50:12,105 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) [2021-10-08 15:50:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62160 states to 62160 states and 242196 transitions. [2021-10-08 15:50:12,923 INFO L78 Accepts]: Start accepts. Automaton has 62160 states and 242196 transitions. Word has length 11 [2021-10-08 15:50:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:12,927 INFO L470 AbstractCegarLoop]: Abstraction has 62160 states and 242196 transitions. [2021-10-08 15:50:12,928 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) [2021-10-08 15:50:12,931 INFO L276 IsEmpty]: Start isEmpty. Operand 62160 states and 242196 transitions. [2021-10-08 15:50:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:50:12,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:12,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:12,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-08 15:50:12,948 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:12,956 INFO L82 PathProgramCache]: Analyzing trace with hash -871859833, now seen corresponding path program 1 times [2021-10-08 15:50:12,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:12,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268492935] [2021-10-08 15:50:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:12,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:13,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:13,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268492935] [2021-10-08 15:50:13,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268492935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:13,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:13,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:50:13,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958154105] [2021-10-08 15:50:13,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:50:13,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:13,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:50:13,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:50:13,102 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) [2021-10-08 15:50:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:18,418 INFO L93 Difference]: Finished difference Result 259570 states and 966159 transitions. [2021-10-08 15:50:18,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-08 15:50:18,421 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 [2021-10-08 15:50:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:20,462 INFO L225 Difference]: With dead ends: 259570 [2021-10-08 15:50:20,462 INFO L226 Difference]: Without dead ends: 259570 [2021-10-08 15:50:20,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 286.8ms TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2021-10-08 15:50:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259570 states. [2021-10-08 15:50:27,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259570 to 64538. [2021-10-08 15:50:27,141 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) [2021-10-08 15:50:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 250523 transitions. [2021-10-08 15:50:27,502 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 250523 transitions. Word has length 12 [2021-10-08 15:50:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:27,502 INFO L470 AbstractCegarLoop]: Abstraction has 64538 states and 250523 transitions. [2021-10-08 15:50:27,502 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) [2021-10-08 15:50:27,502 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 250523 transitions. [2021-10-08 15:50:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:50:27,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:27,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:27,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-08 15:50:27,506 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:27,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:27,507 INFO L82 PathProgramCache]: Analyzing trace with hash -398441128, now seen corresponding path program 1 times [2021-10-08 15:50:27,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:27,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477703289] [2021-10-08 15:50:27,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:27,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:27,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:27,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477703289] [2021-10-08 15:50:27,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477703289] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:27,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:27,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:50:27,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324884905] [2021-10-08 15:50:27,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:50:27,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:27,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:50:27,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:50:27,547 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) [2021-10-08 15:50:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:29,278 INFO L93 Difference]: Finished difference Result 115380 states and 446289 transitions. [2021-10-08 15:50:29,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:50:29,279 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 [2021-10-08 15:50:29,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:30,642 INFO L225 Difference]: With dead ends: 115380 [2021-10-08 15:50:30,643 INFO L226 Difference]: Without dead ends: 115380 [2021-10-08 15:50:30,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:50:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115380 states. [2021-10-08 15:50:33,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115380 to 73702. [2021-10-08 15:50:33,885 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) [2021-10-08 15:50:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73702 states to 73702 states and 290382 transitions. [2021-10-08 15:50:34,896 INFO L78 Accepts]: Start accepts. Automaton has 73702 states and 290382 transitions. Word has length 12 [2021-10-08 15:50:34,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:34,897 INFO L470 AbstractCegarLoop]: Abstraction has 73702 states and 290382 transitions. [2021-10-08 15:50:34,897 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) [2021-10-08 15:50:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 73702 states and 290382 transitions. [2021-10-08 15:50:34,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:50:34,904 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:34,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:34,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-08 15:50:34,905 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:34,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:34,905 INFO L82 PathProgramCache]: Analyzing trace with hash -180249091, now seen corresponding path program 1 times [2021-10-08 15:50:34,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:34,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846473482] [2021-10-08 15:50:34,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:34,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:35,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:35,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846473482] [2021-10-08 15:50:35,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846473482] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:35,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:35,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:50:35,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026186522] [2021-10-08 15:50:35,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:50:35,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:35,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:50:35,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:50:35,024 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) [2021-10-08 15:50:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:37,218 INFO L93 Difference]: Finished difference Result 126146 states and 489200 transitions. [2021-10-08 15:50:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:50:37,219 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 [2021-10-08 15:50:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:38,755 INFO L225 Difference]: With dead ends: 126146 [2021-10-08 15:50:38,756 INFO L226 Difference]: Without dead ends: 126146 [2021-10-08 15:50:38,756 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:50:39,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126146 states. [2021-10-08 15:50:42,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126146 to 77612. [2021-10-08 15:50:42,518 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) [2021-10-08 15:50:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77612 states to 77612 states and 305599 transitions. [2021-10-08 15:50:43,792 INFO L78 Accepts]: Start accepts. Automaton has 77612 states and 305599 transitions. Word has length 12 [2021-10-08 15:50:43,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:43,794 INFO L470 AbstractCegarLoop]: Abstraction has 77612 states and 305599 transitions. [2021-10-08 15:50:43,794 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) [2021-10-08 15:50:43,794 INFO L276 IsEmpty]: Start isEmpty. Operand 77612 states and 305599 transitions. [2021-10-08 15:50:43,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:50:43,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:43,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:43,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-08 15:50:43,800 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:43,801 INFO L82 PathProgramCache]: Analyzing trace with hash -180249147, now seen corresponding path program 1 times [2021-10-08 15:50:43,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:43,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966626484] [2021-10-08 15:50:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:43,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:43,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:43,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966626484] [2021-10-08 15:50:43,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966626484] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:43,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:43,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:50:43,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922186351] [2021-10-08 15:50:43,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:50:43,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:43,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:50:43,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:50:43,844 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) [2021-10-08 15:50:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:45,566 INFO L93 Difference]: Finished difference Result 116334 states and 447515 transitions. [2021-10-08 15:50:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 15:50:45,566 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 [2021-10-08 15:50:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:46,932 INFO L225 Difference]: With dead ends: 116334 [2021-10-08 15:50:46,932 INFO L226 Difference]: Without dead ends: 116334 [2021-10-08 15:50:46,940 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:50:47,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116334 states. [2021-10-08 15:50:50,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116334 to 81806. [2021-10-08 15:50:50,313 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) [2021-10-08 15:50:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81806 states to 81806 states and 321465 transitions. [2021-10-08 15:50:50,802 INFO L78 Accepts]: Start accepts. Automaton has 81806 states and 321465 transitions. Word has length 12 [2021-10-08 15:50:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:50,802 INFO L470 AbstractCegarLoop]: Abstraction has 81806 states and 321465 transitions. [2021-10-08 15:50:50,802 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) [2021-10-08 15:50:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 81806 states and 321465 transitions. [2021-10-08 15:50:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 15:50:50,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:50,806 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:50,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-08 15:50:50,807 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:50,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:50,807 INFO L82 PathProgramCache]: Analyzing trace with hash -80642325, now seen corresponding path program 1 times [2021-10-08 15:50:50,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:50,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280647043] [2021-10-08 15:50:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:50,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:50,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:50,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280647043] [2021-10-08 15:50:50,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280647043] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:50,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:50,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:50:50,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833833277] [2021-10-08 15:50:50,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:50:50,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:50,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:50:50,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:50:50,840 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) [2021-10-08 15:50:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:52,187 INFO L93 Difference]: Finished difference Result 76390 states and 300331 transitions. [2021-10-08 15:50:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:50:52,187 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 [2021-10-08 15:50:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:52,628 INFO L225 Difference]: With dead ends: 76390 [2021-10-08 15:50:52,628 INFO L226 Difference]: Without dead ends: 76390 [2021-10-08 15:50:52,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:50:53,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76390 states. [2021-10-08 15:50:55,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76390 to 76370. [2021-10-08 15:50:55,405 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) [2021-10-08 15:50:55,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76370 states to 76370 states and 300301 transitions. [2021-10-08 15:50:55,822 INFO L78 Accepts]: Start accepts. Automaton has 76370 states and 300301 transitions. Word has length 12 [2021-10-08 15:50:55,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:50:55,822 INFO L470 AbstractCegarLoop]: Abstraction has 76370 states and 300301 transitions. [2021-10-08 15:50:55,822 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) [2021-10-08 15:50:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 76370 states and 300301 transitions. [2021-10-08 15:50:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 15:50:55,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:50:55,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:50:55,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-08 15:50:55,828 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:50:55,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:50:55,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1491008336, now seen corresponding path program 1 times [2021-10-08 15:50:55,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:50:55,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918998283] [2021-10-08 15:50:55,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:50:55,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:50:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:50:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:50:55,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:50:55,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918998283] [2021-10-08 15:50:55,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918998283] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:50:55,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:50:55,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:50:55,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961251598] [2021-10-08 15:50:55,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:50:55,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:50:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:50:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:50:55,876 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) [2021-10-08 15:50:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:50:58,468 INFO L93 Difference]: Finished difference Result 135214 states and 521592 transitions. [2021-10-08 15:50:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:50:58,469 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 [2021-10-08 15:50:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:50:59,475 INFO L225 Difference]: With dead ends: 135214 [2021-10-08 15:50:59,475 INFO L226 Difference]: Without dead ends: 135214 [2021-10-08 15:50:59,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-08 15:51:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135214 states. [2021-10-08 15:51:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135214 to 77284. [2021-10-08 15:51:02,960 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) [2021-10-08 15:51:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77284 states to 77284 states and 303978 transitions. [2021-10-08 15:51:04,017 INFO L78 Accepts]: Start accepts. Automaton has 77284 states and 303978 transitions. Word has length 13 [2021-10-08 15:51:04,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:04,017 INFO L470 AbstractCegarLoop]: Abstraction has 77284 states and 303978 transitions. [2021-10-08 15:51:04,017 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) [2021-10-08 15:51:04,018 INFO L276 IsEmpty]: Start isEmpty. Operand 77284 states and 303978 transitions. [2021-10-08 15:51:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 15:51:04,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:04,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:04,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-08 15:51:04,034 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:04,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:04,034 INFO L82 PathProgramCache]: Analyzing trace with hash 750092280, now seen corresponding path program 1 times [2021-10-08 15:51:04,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:04,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711708925] [2021-10-08 15:51:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:04,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:04,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:04,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711708925] [2021-10-08 15:51:04,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711708925] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:04,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:04,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:51:04,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209237898] [2021-10-08 15:51:04,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:51:04,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:51:04,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:51:04,082 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) [2021-10-08 15:51:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:07,071 INFO L93 Difference]: Finished difference Result 142594 states and 546565 transitions. [2021-10-08 15:51:07,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:51:07,073 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 [2021-10-08 15:51:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:08,240 INFO L225 Difference]: With dead ends: 142594 [2021-10-08 15:51:08,240 INFO L226 Difference]: Without dead ends: 142594 [2021-10-08 15:51:08,240 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 83.5ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-08 15:51:08,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142594 states. [2021-10-08 15:51:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142594 to 77362. [2021-10-08 15:51:12,018 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) [2021-10-08 15:51:13,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77362 states to 77362 states and 304219 transitions. [2021-10-08 15:51:13,237 INFO L78 Accepts]: Start accepts. Automaton has 77362 states and 304219 transitions. Word has length 13 [2021-10-08 15:51:13,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:13,238 INFO L470 AbstractCegarLoop]: Abstraction has 77362 states and 304219 transitions. [2021-10-08 15:51:13,238 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) [2021-10-08 15:51:13,238 INFO L276 IsEmpty]: Start isEmpty. Operand 77362 states and 304219 transitions. [2021-10-08 15:51:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:51:13,258 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:13,258 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:13,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-08 15:51:13,258 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:13,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:13,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1982428974, now seen corresponding path program 1 times [2021-10-08 15:51:13,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:13,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659684045] [2021-10-08 15:51:13,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:13,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:13,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:13,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659684045] [2021-10-08 15:51:13,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659684045] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:13,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:13,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:51:13,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021757769] [2021-10-08 15:51:13,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:51:13,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:13,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:51:13,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:51:13,368 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) [2021-10-08 15:51:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:16,199 INFO L93 Difference]: Finished difference Result 154284 states and 591616 transitions. [2021-10-08 15:51:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-08 15:51:16,200 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 [2021-10-08 15:51:16,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:18,140 INFO L225 Difference]: With dead ends: 154284 [2021-10-08 15:51:18,141 INFO L226 Difference]: Without dead ends: 154284 [2021-10-08 15:51:18,141 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2021-10-08 15:51:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154284 states. [2021-10-08 15:51:22,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154284 to 80106. [2021-10-08 15:51:22,931 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) [2021-10-08 15:51:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80106 states to 80106 states and 314995 transitions. [2021-10-08 15:51:24,005 INFO L78 Accepts]: Start accepts. Automaton has 80106 states and 314995 transitions. Word has length 15 [2021-10-08 15:51:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:24,005 INFO L470 AbstractCegarLoop]: Abstraction has 80106 states and 314995 transitions. [2021-10-08 15:51:24,006 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) [2021-10-08 15:51:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 80106 states and 314995 transitions. [2021-10-08 15:51:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:51:24,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:24,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:24,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-08 15:51:24,020 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:24,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:24,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1982428976, now seen corresponding path program 1 times [2021-10-08 15:51:24,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:24,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285345936] [2021-10-08 15:51:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:24,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:24,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:24,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285345936] [2021-10-08 15:51:24,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285345936] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:24,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:24,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:51:24,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550555449] [2021-10-08 15:51:24,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:51:24,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:24,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:51:24,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:51:24,101 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) [2021-10-08 15:51:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:26,012 INFO L93 Difference]: Finished difference Result 115810 states and 451450 transitions. [2021-10-08 15:51:26,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:51:26,012 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 [2021-10-08 15:51:26,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:27,242 INFO L225 Difference]: With dead ends: 115810 [2021-10-08 15:51:27,242 INFO L226 Difference]: Without dead ends: 115810 [2021-10-08 15:51:27,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:51:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115810 states. [2021-10-08 15:51:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115810 to 82302. [2021-10-08 15:51:30,286 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) [2021-10-08 15:51:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82302 states to 82302 states and 324609 transitions. [2021-10-08 15:51:30,841 INFO L78 Accepts]: Start accepts. Automaton has 82302 states and 324609 transitions. Word has length 15 [2021-10-08 15:51:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,841 INFO L470 AbstractCegarLoop]: Abstraction has 82302 states and 324609 transitions. [2021-10-08 15:51:30,841 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) [2021-10-08 15:51:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 82302 states and 324609 transitions. [2021-10-08 15:51:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:51:30,850 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,850 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:30,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-08 15:51:30,850 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1025193403, now seen corresponding path program 1 times [2021-10-08 15:51:30,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582876998] [2021-10-08 15:51:30,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582876998] [2021-10-08 15:51:30,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582876998] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:51:30,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705189032] [2021-10-08 15:51:30,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:30,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:30,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,881 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) [2021-10-08 15:51:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:32,207 INFO L93 Difference]: Finished difference Result 82236 states and 323107 transitions. [2021-10-08 15:51:32,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:32,208 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 [2021-10-08 15:51:32,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:32,697 INFO L225 Difference]: With dead ends: 82236 [2021-10-08 15:51:32,697 INFO L226 Difference]: Without dead ends: 82236 [2021-10-08 15:51:32,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82236 states. [2021-10-08 15:51:35,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82236 to 80290. [2021-10-08 15:51:35,568 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) [2021-10-08 15:51:36,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80290 states to 80290 states and 316303 transitions. [2021-10-08 15:51:36,005 INFO L78 Accepts]: Start accepts. Automaton has 80290 states and 316303 transitions. Word has length 15 [2021-10-08 15:51:36,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:36,005 INFO L470 AbstractCegarLoop]: Abstraction has 80290 states and 316303 transitions. [2021-10-08 15:51:36,005 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) [2021-10-08 15:51:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand 80290 states and 316303 transitions. [2021-10-08 15:51:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:51:36,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:36,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:36,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-08 15:51:36,016 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:36,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:36,017 INFO L82 PathProgramCache]: Analyzing trace with hash -585927000, now seen corresponding path program 1 times [2021-10-08 15:51:36,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:36,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018681673] [2021-10-08 15:51:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:36,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:36,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:36,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018681673] [2021-10-08 15:51:36,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018681673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:36,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:36,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:51:36,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57571511] [2021-10-08 15:51:36,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:51:36,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:36,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:51:36,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:51:36,065 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) [2021-10-08 15:51:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:39,448 INFO L93 Difference]: Finished difference Result 164808 states and 636281 transitions. [2021-10-08 15:51:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 15:51:39,448 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 [2021-10-08 15:51:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:41,238 INFO L225 Difference]: With dead ends: 164808 [2021-10-08 15:51:41,238 INFO L226 Difference]: Without dead ends: 164808 [2021-10-08 15:51:41,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-08 15:51:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164808 states. [2021-10-08 15:51:45,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164808 to 82606. [2021-10-08 15:51:45,238 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) [2021-10-08 15:51:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82606 states to 82606 states and 325310 transitions. [2021-10-08 15:51:46,314 INFO L78 Accepts]: Start accepts. Automaton has 82606 states and 325310 transitions. Word has length 15 [2021-10-08 15:51:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:46,314 INFO L470 AbstractCegarLoop]: Abstraction has 82606 states and 325310 transitions. [2021-10-08 15:51:46,314 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) [2021-10-08 15:51:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 82606 states and 325310 transitions. [2021-10-08 15:51:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:51:46,327 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:46,327 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:46,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-08 15:51:46,327 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:46,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:46,328 INFO L82 PathProgramCache]: Analyzing trace with hash -585927202, now seen corresponding path program 1 times [2021-10-08 15:51:46,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:46,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474738223] [2021-10-08 15:51:46,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:46,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:46,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:46,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474738223] [2021-10-08 15:51:46,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474738223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:46,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:46,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:51:46,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807568117] [2021-10-08 15:51:46,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:51:46,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:46,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:51:46,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:51:46,386 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) [2021-10-08 15:51:49,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:49,152 INFO L93 Difference]: Finished difference Result 143828 states and 553090 transitions. [2021-10-08 15:51:49,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 15:51:49,152 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 [2021-10-08 15:51:49,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:51,057 INFO L225 Difference]: With dead ends: 143828 [2021-10-08 15:51:51,058 INFO L226 Difference]: Without dead ends: 143828 [2021-10-08 15:51:51,058 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-08 15:51:51,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143828 states. [2021-10-08 15:51:55,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143828 to 80680. [2021-10-08 15:51:56,082 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) [2021-10-08 15:51:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80680 states to 80680 states and 317371 transitions. [2021-10-08 15:51:57,152 INFO L78 Accepts]: Start accepts. Automaton has 80680 states and 317371 transitions. Word has length 15 [2021-10-08 15:51:57,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:57,152 INFO L470 AbstractCegarLoop]: Abstraction has 80680 states and 317371 transitions. [2021-10-08 15:51:57,152 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) [2021-10-08 15:51:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 80680 states and 317371 transitions. [2021-10-08 15:51:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:51:57,180 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:57,181 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:51:57,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-08 15:51:57,181 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:51:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:57,182 INFO L82 PathProgramCache]: Analyzing trace with hash 709531306, now seen corresponding path program 1 times [2021-10-08 15:51:57,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:57,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211040618] [2021-10-08 15:51:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:57,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:57,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:57,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211040618] [2021-10-08 15:51:57,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211040618] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:57,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:57,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:51:57,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423897463] [2021-10-08 15:51:57,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:51:57,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:57,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:51:57,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:51:57,221 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) [2021-10-08 15:51:59,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:59,154 INFO L93 Difference]: Finished difference Result 150694 states and 584087 transitions. [2021-10-08 15:51:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:51:59,155 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 [2021-10-08 15:51:59,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:00,802 INFO L225 Difference]: With dead ends: 150694 [2021-10-08 15:52:00,802 INFO L226 Difference]: Without dead ends: 150694 [2021-10-08 15:52:00,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:52:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150694 states. [2021-10-08 15:52:04,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150694 to 81736. [2021-10-08 15:52:04,745 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) [2021-10-08 15:52:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81736 states to 81736 states and 321821 transitions. [2021-10-08 15:52:05,840 INFO L78 Accepts]: Start accepts. Automaton has 81736 states and 321821 transitions. Word has length 15 [2021-10-08 15:52:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:05,840 INFO L470 AbstractCegarLoop]: Abstraction has 81736 states and 321821 transitions. [2021-10-08 15:52:05,840 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) [2021-10-08 15:52:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 81736 states and 321821 transitions. [2021-10-08 15:52:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:52:05,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:05,855 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:05,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-08 15:52:05,855 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:52:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:05,857 INFO L82 PathProgramCache]: Analyzing trace with hash 927723231, now seen corresponding path program 1 times [2021-10-08 15:52:05,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:05,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664379522] [2021-10-08 15:52:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:05,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:52:05,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:05,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664379522] [2021-10-08 15:52:05,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664379522] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:52:05,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:52:05,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:52:05,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697677785] [2021-10-08 15:52:05,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:52:05,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:05,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:52:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:52:05,909 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) [2021-10-08 15:52:07,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:07,871 INFO L93 Difference]: Finished difference Result 126638 states and 490638 transitions. [2021-10-08 15:52:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:52:07,871 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 [2021-10-08 15:52:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:09,256 INFO L225 Difference]: With dead ends: 126638 [2021-10-08 15:52:09,257 INFO L226 Difference]: Without dead ends: 126638 [2021-10-08 15:52:09,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 47.6ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-08 15:52:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126638 states. [2021-10-08 15:52:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126638 to 83486. [2021-10-08 15:52:12,718 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) [2021-10-08 15:52:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83486 states to 83486 states and 329391 transitions. [2021-10-08 15:52:13,214 INFO L78 Accepts]: Start accepts. Automaton has 83486 states and 329391 transitions. Word has length 15 [2021-10-08 15:52:13,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:13,215 INFO L470 AbstractCegarLoop]: Abstraction has 83486 states and 329391 transitions. [2021-10-08 15:52:13,215 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) [2021-10-08 15:52:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 83486 states and 329391 transitions. [2021-10-08 15:52:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:52:13,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:13,227 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:13,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-08 15:52:13,227 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:52:13,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:13,227 INFO L82 PathProgramCache]: Analyzing trace with hash -721029009, now seen corresponding path program 1 times [2021-10-08 15:52:13,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:13,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247503350] [2021-10-08 15:52:13,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:13,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:52:13,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:13,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247503350] [2021-10-08 15:52:13,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247503350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:52:13,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:52:13,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:52:13,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113645441] [2021-10-08 15:52:13,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:52:13,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:13,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:52:13,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:52:13,287 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) [2021-10-08 15:52:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:18,196 INFO L93 Difference]: Finished difference Result 223234 states and 845202 transitions. [2021-10-08 15:52:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-08 15:52:18,196 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 [2021-10-08 15:52:18,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:20,628 INFO L225 Difference]: With dead ends: 223234 [2021-10-08 15:52:20,628 INFO L226 Difference]: Without dead ends: 223234 [2021-10-08 15:52:20,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 297.1ms TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 15:52:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223234 states. [2021-10-08 15:52:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223234 to 79134. [2021-10-08 15:52:25,780 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) [2021-10-08 15:52:26,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79134 states to 79134 states and 310083 transitions. [2021-10-08 15:52:26,265 INFO L78 Accepts]: Start accepts. Automaton has 79134 states and 310083 transitions. Word has length 15 [2021-10-08 15:52:26,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:26,265 INFO L470 AbstractCegarLoop]: Abstraction has 79134 states and 310083 transitions. [2021-10-08 15:52:26,265 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) [2021-10-08 15:52:26,265 INFO L276 IsEmpty]: Start isEmpty. Operand 79134 states and 310083 transitions. [2021-10-08 15:52:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-08 15:52:26,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:26,274 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:26,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-08 15:52:26,275 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:52:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:26,275 INFO L82 PathProgramCache]: Analyzing trace with hash 116330873, now seen corresponding path program 1 times [2021-10-08 15:52:26,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:26,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477230353] [2021-10-08 15:52:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:26,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:52:26,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:26,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477230353] [2021-10-08 15:52:26,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477230353] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:52:26,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:52:26,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:52:26,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058678091] [2021-10-08 15:52:26,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:52:26,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:26,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:52:26,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:52:26,327 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) [2021-10-08 15:52:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:29,113 INFO L93 Difference]: Finished difference Result 132072 states and 509099 transitions. [2021-10-08 15:52:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:52:29,113 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 [2021-10-08 15:52:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:30,006 INFO L225 Difference]: With dead ends: 132072 [2021-10-08 15:52:30,007 INFO L226 Difference]: Without dead ends: 132072 [2021-10-08 15:52:30,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 53.2ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-10-08 15:52:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132072 states. [2021-10-08 15:52:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132072 to 80582. [2021-10-08 15:52:33,555 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) [2021-10-08 15:52:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80582 states to 80582 states and 316392 transitions. [2021-10-08 15:52:34,988 INFO L78 Accepts]: Start accepts. Automaton has 80582 states and 316392 transitions. Word has length 15 [2021-10-08 15:52:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:35,002 INFO L470 AbstractCegarLoop]: Abstraction has 80582 states and 316392 transitions. [2021-10-08 15:52:35,002 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) [2021-10-08 15:52:35,002 INFO L276 IsEmpty]: Start isEmpty. Operand 80582 states and 316392 transitions. [2021-10-08 15:52:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:52:35,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:35,031 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:35,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-08 15:52:35,032 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:52:35,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:35,034 INFO L82 PathProgramCache]: Analyzing trace with hash -2062345677, now seen corresponding path program 1 times [2021-10-08 15:52:35,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:35,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577719546] [2021-10-08 15:52:35,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:35,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:52:35,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:35,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577719546] [2021-10-08 15:52:35,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577719546] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:52:35,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:52:35,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:52:35,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132143220] [2021-10-08 15:52:35,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:52:35,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:52:35,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:52:35,130 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) [2021-10-08 15:52:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:41,181 INFO L93 Difference]: Finished difference Result 274034 states and 1039593 transitions. [2021-10-08 15:52:41,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:52:41,184 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 [2021-10-08 15:52:41,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:45,427 INFO L225 Difference]: With dead ends: 274034 [2021-10-08 15:52:45,436 INFO L226 Difference]: Without dead ends: 274034 [2021-10-08 15:52:45,436 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 91.3ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-08 15:52:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274034 states. [2021-10-08 15:52:51,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274034 to 85514. [2021-10-08 15:52:52,073 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) [2021-10-08 15:52:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85514 states to 85514 states and 335557 transitions. [2021-10-08 15:52:53,385 INFO L78 Accepts]: Start accepts. Automaton has 85514 states and 335557 transitions. Word has length 16 [2021-10-08 15:52:53,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:52:53,386 INFO L470 AbstractCegarLoop]: Abstraction has 85514 states and 335557 transitions. [2021-10-08 15:52:53,386 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) [2021-10-08 15:52:53,386 INFO L276 IsEmpty]: Start isEmpty. Operand 85514 states and 335557 transitions. [2021-10-08 15:52:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:52:53,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:52:53,404 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:52:53,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-08 15:52:53,404 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:52:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:52:53,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1844153752, now seen corresponding path program 1 times [2021-10-08 15:52:53,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:52:53,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137730193] [2021-10-08 15:52:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:52:53,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:52:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:52:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:52:53,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:52:53,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137730193] [2021-10-08 15:52:53,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137730193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:52:53,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:52:53,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:52:53,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765270164] [2021-10-08 15:52:53,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:52:53,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:52:53,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:52:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:52:53,461 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) [2021-10-08 15:52:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:52:55,442 INFO L93 Difference]: Finished difference Result 133144 states and 494453 transitions. [2021-10-08 15:52:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:52:55,443 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 [2021-10-08 15:52:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:52:56,847 INFO L225 Difference]: With dead ends: 133144 [2021-10-08 15:52:56,848 INFO L226 Difference]: Without dead ends: 133144 [2021-10-08 15:52:56,848 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:52:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133144 states. [2021-10-08 15:52:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133144 to 68172. [2021-10-08 15:53:00,071 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) [2021-10-08 15:53:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68172 states to 68172 states and 260855 transitions. [2021-10-08 15:53:00,486 INFO L78 Accepts]: Start accepts. Automaton has 68172 states and 260855 transitions. Word has length 16 [2021-10-08 15:53:00,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:00,486 INFO L470 AbstractCegarLoop]: Abstraction has 68172 states and 260855 transitions. [2021-10-08 15:53:00,487 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) [2021-10-08 15:53:00,487 INFO L276 IsEmpty]: Start isEmpty. Operand 68172 states and 260855 transitions. [2021-10-08 15:53:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:00,496 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:00,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:00,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-08 15:53:00,496 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:00,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1447269180, now seen corresponding path program 2 times [2021-10-08 15:53:00,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:00,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108845728] [2021-10-08 15:53:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:00,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:00,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:00,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108845728] [2021-10-08 15:53:00,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108845728] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:00,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:00,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:53:00,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365392684] [2021-10-08 15:53:00,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:53:00,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:53:00,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:53:00,530 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) [2021-10-08 15:53:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:02,493 INFO L93 Difference]: Finished difference Result 106228 states and 406287 transitions. [2021-10-08 15:53:02,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:53:02,494 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 [2021-10-08 15:53:02,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:03,634 INFO L225 Difference]: With dead ends: 106228 [2021-10-08 15:53:03,635 INFO L226 Difference]: Without dead ends: 106228 [2021-10-08 15:53:03,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:53:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106228 states. [2021-10-08 15:53:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106228 to 68172. [2021-10-08 15:53:06,105 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) [2021-10-08 15:53:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68172 states to 68172 states and 260645 transitions. [2021-10-08 15:53:07,050 INFO L78 Accepts]: Start accepts. Automaton has 68172 states and 260645 transitions. Word has length 16 [2021-10-08 15:53:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:07,050 INFO L470 AbstractCegarLoop]: Abstraction has 68172 states and 260645 transitions. [2021-10-08 15:53:07,051 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) [2021-10-08 15:53:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 68172 states and 260645 transitions. [2021-10-08 15:53:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:07,074 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:07,074 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:07,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-08 15:53:07,074 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:07,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:07,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1327790925, now seen corresponding path program 1 times [2021-10-08 15:53:07,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:07,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796282952] [2021-10-08 15:53:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:07,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:07,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:07,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796282952] [2021-10-08 15:53:07,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796282952] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:07,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:07,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:53:07,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961498790] [2021-10-08 15:53:07,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:53:07,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:07,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:53:07,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:53:07,171 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) [2021-10-08 15:53:09,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:09,167 INFO L93 Difference]: Finished difference Result 101632 states and 376829 transitions. [2021-10-08 15:53:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:53:09,167 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 [2021-10-08 15:53:09,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:09,806 INFO L225 Difference]: With dead ends: 101632 [2021-10-08 15:53:09,807 INFO L226 Difference]: Without dead ends: 101632 [2021-10-08 15:53:09,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 87.2ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:53:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101632 states. [2021-10-08 15:53:12,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101632 to 73746. [2021-10-08 15:53:12,907 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) [2021-10-08 15:53:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73746 states to 73746 states and 278036 transitions. [2021-10-08 15:53:13,338 INFO L78 Accepts]: Start accepts. Automaton has 73746 states and 278036 transitions. Word has length 16 [2021-10-08 15:53:13,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:13,339 INFO L470 AbstractCegarLoop]: Abstraction has 73746 states and 278036 transitions. [2021-10-08 15:53:13,339 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) [2021-10-08 15:53:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 73746 states and 278036 transitions. [2021-10-08 15:53:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:13,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:13,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:13,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-08 15:53:13,349 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:13,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:13,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1682494957, now seen corresponding path program 1 times [2021-10-08 15:53:13,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:13,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326924926] [2021-10-08 15:53:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:13,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:13,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:13,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326924926] [2021-10-08 15:53:13,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326924926] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:13,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:13,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:53:13,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139364997] [2021-10-08 15:53:13,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:53:13,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:13,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:53:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:53:13,403 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) [2021-10-08 15:53:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:16,549 INFO L93 Difference]: Finished difference Result 172748 states and 640095 transitions. [2021-10-08 15:53:16,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-08 15:53:16,549 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 [2021-10-08 15:53:16,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:19,098 INFO L225 Difference]: With dead ends: 172748 [2021-10-08 15:53:19,099 INFO L226 Difference]: Without dead ends: 172748 [2021-10-08 15:53:19,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 217.5ms TimeCoverageRelationStatistics Valid=257, Invalid=933, Unknown=0, NotChecked=0, Total=1190 [2021-10-08 15:53:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172748 states. [2021-10-08 15:53:23,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172748 to 77148. [2021-10-08 15:53:24,266 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) [2021-10-08 15:53:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77148 states to 77148 states and 290677 transitions. [2021-10-08 15:53:24,752 INFO L78 Accepts]: Start accepts. Automaton has 77148 states and 290677 transitions. Word has length 16 [2021-10-08 15:53:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:24,752 INFO L470 AbstractCegarLoop]: Abstraction has 77148 states and 290677 transitions. [2021-10-08 15:53:24,752 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) [2021-10-08 15:53:24,753 INFO L276 IsEmpty]: Start isEmpty. Operand 77148 states and 290677 transitions. [2021-10-08 15:53:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:24,762 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:24,762 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:24,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-08 15:53:24,762 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:24,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:24,763 INFO L82 PathProgramCache]: Analyzing trace with hash -48120344, now seen corresponding path program 3 times [2021-10-08 15:53:24,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:24,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713398151] [2021-10-08 15:53:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:24,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:24,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:24,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713398151] [2021-10-08 15:53:24,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713398151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:24,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:24,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:53:24,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593947298] [2021-10-08 15:53:24,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:53:24,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:24,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:53:24,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:53:24,804 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) [2021-10-08 15:53:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:26,286 INFO L93 Difference]: Finished difference Result 105460 states and 379797 transitions. [2021-10-08 15:53:26,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:53:26,287 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 [2021-10-08 15:53:26,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:26,874 INFO L225 Difference]: With dead ends: 105460 [2021-10-08 15:53:26,874 INFO L226 Difference]: Without dead ends: 105460 [2021-10-08 15:53:26,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:53:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105460 states. [2021-10-08 15:53:29,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105460 to 59864. [2021-10-08 15:53:29,719 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) [2021-10-08 15:53:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59864 states to 59864 states and 217318 transitions. [2021-10-08 15:53:29,985 INFO L78 Accepts]: Start accepts. Automaton has 59864 states and 217318 transitions. Word has length 16 [2021-10-08 15:53:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:29,986 INFO L470 AbstractCegarLoop]: Abstraction has 59864 states and 217318 transitions. [2021-10-08 15:53:29,986 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) [2021-10-08 15:53:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 59864 states and 217318 transitions. [2021-10-08 15:53:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:29,993 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:29,993 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:29,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-08 15:53:29,994 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:29,994 INFO L82 PathProgramCache]: Analyzing trace with hash -715980733, now seen corresponding path program 1 times [2021-10-08 15:53:29,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:29,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753230545] [2021-10-08 15:53:29,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:29,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:30,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:30,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753230545] [2021-10-08 15:53:30,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753230545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:30,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:30,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:53:30,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234703292] [2021-10-08 15:53:30,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:53:30,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:30,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:53:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:53:30,040 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) [2021-10-08 15:53:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:32,863 INFO L93 Difference]: Finished difference Result 129698 states and 466910 transitions. [2021-10-08 15:53:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-08 15:53:32,864 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 [2021-10-08 15:53:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:33,775 INFO L225 Difference]: With dead ends: 129698 [2021-10-08 15:53:33,775 INFO L226 Difference]: Without dead ends: 129698 [2021-10-08 15:53:33,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 229.1ms TimeCoverageRelationStatistics Valid=290, Invalid=1116, Unknown=0, NotChecked=0, Total=1406 [2021-10-08 15:53:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129698 states. [2021-10-08 15:53:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129698 to 60446. [2021-10-08 15:53:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60446 states, 60382 states have (on average 3.6356033254943525) internal successors, (219525), 60445 states have internal predecessors, (219525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60446 states to 60446 states and 219525 transitions. [2021-10-08 15:53:37,286 INFO L78 Accepts]: Start accepts. Automaton has 60446 states and 219525 transitions. Word has length 16 [2021-10-08 15:53:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:37,286 INFO L470 AbstractCegarLoop]: Abstraction has 60446 states and 219525 transitions. [2021-10-08 15:53:37,286 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) [2021-10-08 15:53:37,287 INFO L276 IsEmpty]: Start isEmpty. Operand 60446 states and 219525 transitions. [2021-10-08 15:53:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:37,294 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:37,294 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:37,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-08 15:53:37,294 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash -194952509, now seen corresponding path program 1 times [2021-10-08 15:53:37,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:37,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785421999] [2021-10-08 15:53:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:37,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:37,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:37,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785421999] [2021-10-08 15:53:37,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785421999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:37,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:37,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:53:37,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824666875] [2021-10-08 15:53:37,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:53:37,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:53:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:53:37,390 INFO L87 Difference]: Start difference. First operand 60446 states and 219525 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) [2021-10-08 15:53:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:39,338 INFO L93 Difference]: Finished difference Result 106276 states and 382369 transitions. [2021-10-08 15:53:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-08 15:53:39,338 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 [2021-10-08 15:53:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:40,388 INFO L225 Difference]: With dead ends: 106276 [2021-10-08 15:53:40,388 INFO L226 Difference]: Without dead ends: 106276 [2021-10-08 15:53:40,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 183.6ms TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2021-10-08 15:53:40,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106276 states. [2021-10-08 15:53:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106276 to 60528. [2021-10-08 15:53:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60528 states, 60464 states have (on average 3.635717120931463) internal successors, (219830), 60527 states have internal predecessors, (219830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60528 states to 60528 states and 219830 transitions. [2021-10-08 15:53:42,947 INFO L78 Accepts]: Start accepts. Automaton has 60528 states and 219830 transitions. Word has length 16 [2021-10-08 15:53:42,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:42,948 INFO L470 AbstractCegarLoop]: Abstraction has 60528 states and 219830 transitions. [2021-10-08 15:53:42,948 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) [2021-10-08 15:53:42,948 INFO L276 IsEmpty]: Start isEmpty. Operand 60528 states and 219830 transitions. [2021-10-08 15:53:42,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:42,957 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:42,958 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:42,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-08 15:53:42,958 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:42,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:42,958 INFO L82 PathProgramCache]: Analyzing trace with hash -976000023, now seen corresponding path program 1 times [2021-10-08 15:53:42,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:42,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982314292] [2021-10-08 15:53:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:42,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:43,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:43,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982314292] [2021-10-08 15:53:43,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982314292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:43,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:43,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:53:43,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954237597] [2021-10-08 15:53:43,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:53:43,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:43,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:53:43,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:53:43,026 INFO L87 Difference]: Start difference. First operand 60528 states and 219830 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) [2021-10-08 15:53:46,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:46,734 INFO L93 Difference]: Finished difference Result 149854 states and 527922 transitions. [2021-10-08 15:53:46,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-08 15:53:46,735 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 [2021-10-08 15:53:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:48,078 INFO L225 Difference]: With dead ends: 149854 [2021-10-08 15:53:48,078 INFO L226 Difference]: Without dead ends: 149854 [2021-10-08 15:53:48,080 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 460.9ms TimeCoverageRelationStatistics Valid=542, Invalid=2650, Unknown=0, NotChecked=0, Total=3192 [2021-10-08 15:53:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149854 states. [2021-10-08 15:53:50,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149854 to 59988. [2021-10-08 15:53:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59988 states, 59926 states have (on average 3.6349664586323134) internal successors, (217829), 59987 states have internal predecessors, (217829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:51,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59988 states to 59988 states and 217829 transitions. [2021-10-08 15:53:51,656 INFO L78 Accepts]: Start accepts. Automaton has 59988 states and 217829 transitions. Word has length 16 [2021-10-08 15:53:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:51,656 INFO L470 AbstractCegarLoop]: Abstraction has 59988 states and 217829 transitions. [2021-10-08 15:53:51,656 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) [2021-10-08 15:53:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 59988 states and 217829 transitions. [2021-10-08 15:53:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:51,667 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:51,667 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:51,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-08 15:53:51,668 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:51,668 INFO L82 PathProgramCache]: Analyzing trace with hash 177831428, now seen corresponding path program 1 times [2021-10-08 15:53:51,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:51,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978936577] [2021-10-08 15:53:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:51,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:51,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:51,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978936577] [2021-10-08 15:53:51,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978936577] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:51,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:51,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:53:51,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416477910] [2021-10-08 15:53:51,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:53:51,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:51,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:53:51,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:53:51,715 INFO L87 Difference]: Start difference. First operand 59988 states and 217829 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) [2021-10-08 15:53:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:53,558 INFO L93 Difference]: Finished difference Result 88488 states and 318579 transitions. [2021-10-08 15:53:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:53:53,558 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 [2021-10-08 15:53:53,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:54,038 INFO L225 Difference]: With dead ends: 88488 [2021-10-08 15:53:54,038 INFO L226 Difference]: Without dead ends: 88488 [2021-10-08 15:53:54,039 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 61.3ms TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:53:54,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88488 states. [2021-10-08 15:53:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88488 to 62312. [2021-10-08 15:53:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62312 states, 62250 states have (on average 3.6312289156626507) internal successors, (226044), 62311 states have internal predecessors, (226044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:53:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62312 states to 62312 states and 226044 transitions. [2021-10-08 15:53:56,998 INFO L78 Accepts]: Start accepts. Automaton has 62312 states and 226044 transitions. Word has length 16 [2021-10-08 15:53:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:53:56,998 INFO L470 AbstractCegarLoop]: Abstraction has 62312 states and 226044 transitions. [2021-10-08 15:53:56,998 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) [2021-10-08 15:53:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 62312 states and 226044 transitions. [2021-10-08 15:53:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 15:53:57,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:53:57,009 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:53:57,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-08 15:53:57,010 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:53:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:53:57,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1747771686, now seen corresponding path program 1 times [2021-10-08 15:53:57,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:53:57,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667569961] [2021-10-08 15:53:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:53:57,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:53:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:53:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:53:57,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:53:57,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667569961] [2021-10-08 15:53:57,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667569961] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:53:57,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:53:57,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:53:57,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111133486] [2021-10-08 15:53:57,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:53:57,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:53:57,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:53:57,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:53:57,058 INFO L87 Difference]: Start difference. First operand 62312 states and 226044 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) [2021-10-08 15:53:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:53:57,759 INFO L93 Difference]: Finished difference Result 76264 states and 275290 transitions. [2021-10-08 15:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 15:53:57,759 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 [2021-10-08 15:53:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:53:58,775 INFO L225 Difference]: With dead ends: 76264 [2021-10-08 15:53:58,775 INFO L226 Difference]: Without dead ends: 76264 [2021-10-08 15:53:58,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:53:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76264 states. [2021-10-08 15:54:00,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76264 to 63886. [2021-10-08 15:54:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63886 states, 63825 states have (on average 3.6362397179788486) internal successors, (232083), 63885 states have internal predecessors, (232083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63886 states to 63886 states and 232083 transitions. [2021-10-08 15:54:01,303 INFO L78 Accepts]: Start accepts. Automaton has 63886 states and 232083 transitions. Word has length 16 [2021-10-08 15:54:01,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:01,303 INFO L470 AbstractCegarLoop]: Abstraction has 63886 states and 232083 transitions. [2021-10-08 15:54:01,304 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) [2021-10-08 15:54:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 63886 states and 232083 transitions. [2021-10-08 15:54:01,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:01,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:01,312 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:01,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-08 15:54:01,313 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:01,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:01,313 INFO L82 PathProgramCache]: Analyzing trace with hash -223793062, now seen corresponding path program 1 times [2021-10-08 15:54:01,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:01,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404869515] [2021-10-08 15:54:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:01,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:01,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:01,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404869515] [2021-10-08 15:54:01,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404869515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:01,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:01,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:54:01,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383326010] [2021-10-08 15:54:01,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:54:01,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:01,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:54:01,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:54:01,360 INFO L87 Difference]: Start difference. First operand 63886 states and 232083 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) [2021-10-08 15:54:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:03,123 INFO L93 Difference]: Finished difference Result 75110 states and 270801 transitions. [2021-10-08 15:54:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 15:54:03,123 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 [2021-10-08 15:54:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:03,685 INFO L225 Difference]: With dead ends: 75110 [2021-10-08 15:54:03,685 INFO L226 Difference]: Without dead ends: 75110 [2021-10-08 15:54:03,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:54:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75110 states. [2021-10-08 15:54:05,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75110 to 63696. [2021-10-08 15:54:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63696 states, 63635 states have (on average 3.6333935727194153) internal successors, (231211), 63695 states have internal predecessors, (231211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63696 states to 63696 states and 231211 transitions. [2021-10-08 15:54:06,288 INFO L78 Accepts]: Start accepts. Automaton has 63696 states and 231211 transitions. Word has length 17 [2021-10-08 15:54:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:06,288 INFO L470 AbstractCegarLoop]: Abstraction has 63696 states and 231211 transitions. [2021-10-08 15:54:06,288 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) [2021-10-08 15:54:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 63696 states and 231211 transitions. [2021-10-08 15:54:06,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:06,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:06,300 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:06,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-08 15:54:06,300 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:06,301 INFO L82 PathProgramCache]: Analyzing trace with hash 994065366, now seen corresponding path program 2 times [2021-10-08 15:54:06,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:06,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657540790] [2021-10-08 15:54:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:06,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:06,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:06,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657540790] [2021-10-08 15:54:06,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657540790] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:06,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:06,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:54:06,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853620097] [2021-10-08 15:54:06,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:54:06,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:54:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:54:06,833 INFO L87 Difference]: Start difference. First operand 63696 states and 231211 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) [2021-10-08 15:54:09,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:09,120 INFO L93 Difference]: Finished difference Result 118866 states and 427167 transitions. [2021-10-08 15:54:09,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-08 15:54:09,120 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 [2021-10-08 15:54:09,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:09,845 INFO L225 Difference]: With dead ends: 118866 [2021-10-08 15:54:09,845 INFO L226 Difference]: Without dead ends: 118866 [2021-10-08 15:54:09,846 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 705.3ms TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:54:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118866 states. [2021-10-08 15:54:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118866 to 63704. [2021-10-08 15:54:12,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63704 states, 63643 states have (on average 3.634759517935987) internal successors, (231327), 63703 states have internal predecessors, (231327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63704 states to 63704 states and 231327 transitions. [2021-10-08 15:54:13,091 INFO L78 Accepts]: Start accepts. Automaton has 63704 states and 231327 transitions. Word has length 17 [2021-10-08 15:54:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:13,091 INFO L470 AbstractCegarLoop]: Abstraction has 63704 states and 231327 transitions. [2021-10-08 15:54:13,091 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) [2021-10-08 15:54:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 63704 states and 231327 transitions. [2021-10-08 15:54:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:13,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:13,099 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:13,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-08 15:54:13,100 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:13,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1001036741, now seen corresponding path program 1 times [2021-10-08 15:54:13,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:13,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376467539] [2021-10-08 15:54:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:13,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:13,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:13,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376467539] [2021-10-08 15:54:13,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376467539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:13,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:13,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:54:13,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190010313] [2021-10-08 15:54:13,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:54:13,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:13,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:54:13,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:54:13,163 INFO L87 Difference]: Start difference. First operand 63704 states and 231327 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) [2021-10-08 15:54:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:15,450 INFO L93 Difference]: Finished difference Result 105536 states and 378443 transitions. [2021-10-08 15:54:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-08 15:54:15,450 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 [2021-10-08 15:54:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:16,575 INFO L225 Difference]: With dead ends: 105536 [2021-10-08 15:54:16,575 INFO L226 Difference]: Without dead ends: 105536 [2021-10-08 15:54:16,576 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 323.2ms TimeCoverageRelationStatistics Valid=407, Invalid=1945, Unknown=0, NotChecked=0, Total=2352 [2021-10-08 15:54:16,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105536 states. [2021-10-08 15:54:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105536 to 61886. [2021-10-08 15:54:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61886 states, 61825 states have (on average 3.630117266477962) internal successors, (224432), 61885 states have internal predecessors, (224432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61886 states to 61886 states and 224432 transitions. [2021-10-08 15:54:19,205 INFO L78 Accepts]: Start accepts. Automaton has 61886 states and 224432 transitions. Word has length 17 [2021-10-08 15:54:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:19,205 INFO L470 AbstractCegarLoop]: Abstraction has 61886 states and 224432 transitions. [2021-10-08 15:54:19,205 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) [2021-10-08 15:54:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 61886 states and 224432 transitions. [2021-10-08 15:54:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:19,214 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:19,214 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:19,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-08 15:54:19,214 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:19,214 INFO L82 PathProgramCache]: Analyzing trace with hash -395879966, now seen corresponding path program 1 times [2021-10-08 15:54:19,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:19,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604411826] [2021-10-08 15:54:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:19,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:19,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:19,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604411826] [2021-10-08 15:54:19,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604411826] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:19,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:19,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:54:19,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706264871] [2021-10-08 15:54:19,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:54:19,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:54:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:54:19,269 INFO L87 Difference]: Start difference. First operand 61886 states and 224432 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) [2021-10-08 15:54:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:22,347 INFO L93 Difference]: Finished difference Result 130128 states and 467654 transitions. [2021-10-08 15:54:22,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-08 15:54:22,348 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 [2021-10-08 15:54:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:23,160 INFO L225 Difference]: With dead ends: 130128 [2021-10-08 15:54:23,160 INFO L226 Difference]: Without dead ends: 130128 [2021-10-08 15:54:23,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 846.3ms TimeCoverageRelationStatistics Valid=526, Invalid=2230, Unknown=0, NotChecked=0, Total=2756 [2021-10-08 15:54:23,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130128 states. [2021-10-08 15:54:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130128 to 59914. [2021-10-08 15:54:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59914 states, 59853 states have (on average 3.6220406662990996) internal successors, (216790), 59913 states have internal predecessors, (216790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59914 states to 59914 states and 216790 transitions. [2021-10-08 15:54:26,548 INFO L78 Accepts]: Start accepts. Automaton has 59914 states and 216790 transitions. Word has length 17 [2021-10-08 15:54:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:26,548 INFO L470 AbstractCegarLoop]: Abstraction has 59914 states and 216790 transitions. [2021-10-08 15:54:26,549 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) [2021-10-08 15:54:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 59914 states and 216790 transitions. [2021-10-08 15:54:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:26,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:26,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:26,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-08 15:54:26,558 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:26,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:26,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1112350704, now seen corresponding path program 1 times [2021-10-08 15:54:26,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:26,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081787624] [2021-10-08 15:54:26,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:26,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:26,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:26,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081787624] [2021-10-08 15:54:26,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081787624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:26,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:26,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:54:26,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560840096] [2021-10-08 15:54:26,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:54:26,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:26,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:54:26,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:54:26,601 INFO L87 Difference]: Start difference. First operand 59914 states and 216790 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) [2021-10-08 15:54:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:27,914 INFO L93 Difference]: Finished difference Result 80260 states and 287759 transitions. [2021-10-08 15:54:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:54:27,914 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 [2021-10-08 15:54:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:28,283 INFO L225 Difference]: With dead ends: 80260 [2021-10-08 15:54:28,283 INFO L226 Difference]: Without dead ends: 80260 [2021-10-08 15:54:28,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 41.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:54:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80260 states. [2021-10-08 15:54:30,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80260 to 60830. [2021-10-08 15:54:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60830 states, 60773 states have (on average 3.624866305760782) internal successors, (220294), 60829 states have internal predecessors, (220294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:31,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60830 states to 60830 states and 220294 transitions. [2021-10-08 15:54:31,416 INFO L78 Accepts]: Start accepts. Automaton has 60830 states and 220294 transitions. Word has length 17 [2021-10-08 15:54:31,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:31,416 INFO L470 AbstractCegarLoop]: Abstraction has 60830 states and 220294 transitions. [2021-10-08 15:54:31,416 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) [2021-10-08 15:54:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 60830 states and 220294 transitions. [2021-10-08 15:54:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:31,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:31,426 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:31,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-08 15:54:31,426 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:31,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:31,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1173049005, now seen corresponding path program 1 times [2021-10-08 15:54:31,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:31,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198593420] [2021-10-08 15:54:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:31,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:31,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:31,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198593420] [2021-10-08 15:54:31,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198593420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:31,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:31,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:54:31,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564109491] [2021-10-08 15:54:31,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:54:31,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:31,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:54:31,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:54:31,478 INFO L87 Difference]: Start difference. First operand 60830 states and 220294 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) [2021-10-08 15:54:32,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:32,919 INFO L93 Difference]: Finished difference Result 84404 states and 303166 transitions. [2021-10-08 15:54:32,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:54:32,920 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 [2021-10-08 15:54:32,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:33,375 INFO L225 Difference]: With dead ends: 84404 [2021-10-08 15:54:33,375 INFO L226 Difference]: Without dead ends: 84404 [2021-10-08 15:54:33,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 76.2ms TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-10-08 15:54:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84404 states. [2021-10-08 15:54:35,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84404 to 62388. [2021-10-08 15:54:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62388 states, 62331 states have (on average 3.6282106816832718) internal successors, (226150), 62387 states have internal predecessors, (226150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62388 states to 62388 states and 226150 transitions. [2021-10-08 15:54:36,260 INFO L78 Accepts]: Start accepts. Automaton has 62388 states and 226150 transitions. Word has length 17 [2021-10-08 15:54:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:36,261 INFO L470 AbstractCegarLoop]: Abstraction has 62388 states and 226150 transitions. [2021-10-08 15:54:36,261 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) [2021-10-08 15:54:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 62388 states and 226150 transitions. [2021-10-08 15:54:36,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:36,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:36,278 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:36,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-08 15:54:36,280 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:36,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:36,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1280844165, now seen corresponding path program 1 times [2021-10-08 15:54:36,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:36,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589911054] [2021-10-08 15:54:36,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:36,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:36,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:36,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:36,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589911054] [2021-10-08 15:54:36,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589911054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:36,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:36,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:54:36,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038731003] [2021-10-08 15:54:36,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:54:36,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:36,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:54:36,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:54:36,305 INFO L87 Difference]: Start difference. First operand 62388 states and 226150 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) [2021-10-08 15:54:37,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:37,417 INFO L93 Difference]: Finished difference Result 70514 states and 253008 transitions. [2021-10-08 15:54:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:54:37,417 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 [2021-10-08 15:54:37,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:37,780 INFO L225 Difference]: With dead ends: 70514 [2021-10-08 15:54:37,781 INFO L226 Difference]: Without dead ends: 70514 [2021-10-08 15:54:37,781 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:54:37,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70514 states. [2021-10-08 15:54:39,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70514 to 59688. [2021-10-08 15:54:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59688 states, 59631 states have (on average 3.6154349247874427) internal successors, (215592), 59687 states have internal predecessors, (215592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59688 states to 59688 states and 215592 transitions. [2021-10-08 15:54:40,015 INFO L78 Accepts]: Start accepts. Automaton has 59688 states and 215592 transitions. Word has length 17 [2021-10-08 15:54:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:40,016 INFO L470 AbstractCegarLoop]: Abstraction has 59688 states and 215592 transitions. [2021-10-08 15:54:40,016 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) [2021-10-08 15:54:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 59688 states and 215592 transitions. [2021-10-08 15:54:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:40,027 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:40,028 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:40,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-08 15:54:40,028 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:40,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:40,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1399679336, now seen corresponding path program 1 times [2021-10-08 15:54:40,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:40,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498025505] [2021-10-08 15:54:40,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:40,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:40,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:40,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498025505] [2021-10-08 15:54:40,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498025505] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:40,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:40,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:54:40,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201561167] [2021-10-08 15:54:40,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:54:40,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:54:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:54:40,060 INFO L87 Difference]: Start difference. First operand 59688 states and 215592 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) [2021-10-08 15:54:40,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:40,966 INFO L93 Difference]: Finished difference Result 59762 states and 215041 transitions. [2021-10-08 15:54:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:54:40,966 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 [2021-10-08 15:54:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:41,326 INFO L225 Difference]: With dead ends: 59762 [2021-10-08 15:54:41,326 INFO L226 Difference]: Without dead ends: 59762 [2021-10-08 15:54:41,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:54:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59762 states. [2021-10-08 15:54:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59762 to 58894. [2021-10-08 15:54:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58894 states, 58837 states have (on average 3.6140183897887384) internal successors, (212638), 58893 states have internal predecessors, (212638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58894 states to 58894 states and 212638 transitions. [2021-10-08 15:54:43,890 INFO L78 Accepts]: Start accepts. Automaton has 58894 states and 212638 transitions. Word has length 17 [2021-10-08 15:54:43,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:43,891 INFO L470 AbstractCegarLoop]: Abstraction has 58894 states and 212638 transitions. [2021-10-08 15:54:43,891 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) [2021-10-08 15:54:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 58894 states and 212638 transitions. [2021-10-08 15:54:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-08 15:54:43,910 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:43,910 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:43,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-08 15:54:43,910 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:43,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:43,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1399679262, now seen corresponding path program 1 times [2021-10-08 15:54:43,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:43,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215047944] [2021-10-08 15:54:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:43,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:43,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:43,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215047944] [2021-10-08 15:54:43,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215047944] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:43,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:43,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:54:43,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542492438] [2021-10-08 15:54:43,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:54:43,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:43,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:54:43,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:54:43,981 INFO L87 Difference]: Start difference. First operand 58894 states and 212638 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) [2021-10-08 15:54:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:44,650 INFO L93 Difference]: Finished difference Result 58936 states and 210623 transitions. [2021-10-08 15:54:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:54:44,651 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 [2021-10-08 15:54:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:45,695 INFO L225 Difference]: With dead ends: 58936 [2021-10-08 15:54:45,696 INFO L226 Difference]: Without dead ends: 58910 [2021-10-08 15:54:45,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:54:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58910 states. [2021-10-08 15:54:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58910 to 57974. [2021-10-08 15:54:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57974 states, 57922 states have (on average 3.5918821863885917) internal successors, (208049), 57973 states have internal predecessors, (208049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57974 states to 57974 states and 208049 transitions. [2021-10-08 15:54:48,587 INFO L78 Accepts]: Start accepts. Automaton has 57974 states and 208049 transitions. Word has length 17 [2021-10-08 15:54:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:48,587 INFO L470 AbstractCegarLoop]: Abstraction has 57974 states and 208049 transitions. [2021-10-08 15:54:48,587 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) [2021-10-08 15:54:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 57974 states and 208049 transitions. [2021-10-08 15:54:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:54:48,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:48,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:48,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-08 15:54:48,623 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:48,624 INFO L82 PathProgramCache]: Analyzing trace with hash 278991862, now seen corresponding path program 1 times [2021-10-08 15:54:48,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:48,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460344509] [2021-10-08 15:54:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:48,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:48,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:48,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460344509] [2021-10-08 15:54:48,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460344509] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:48,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:48,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:54:48,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601838732] [2021-10-08 15:54:48,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:54:48,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:54:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:54:48,661 INFO L87 Difference]: Start difference. First operand 57974 states and 208049 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) [2021-10-08 15:54:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:50,217 INFO L93 Difference]: Finished difference Result 97476 states and 345184 transitions. [2021-10-08 15:54:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:54:50,218 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 [2021-10-08 15:54:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:50,711 INFO L225 Difference]: With dead ends: 97476 [2021-10-08 15:54:50,712 INFO L226 Difference]: Without dead ends: 97476 [2021-10-08 15:54:50,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 44.5ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:54:50,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97476 states. [2021-10-08 15:54:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97476 to 58124. [2021-10-08 15:54:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58124 states, 58072 states have (on average 3.591834274693484) internal successors, (208585), 58123 states have internal predecessors, (208585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58124 states to 58124 states and 208585 transitions. [2021-10-08 15:54:53,594 INFO L78 Accepts]: Start accepts. Automaton has 58124 states and 208585 transitions. Word has length 18 [2021-10-08 15:54:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:53,596 INFO L470 AbstractCegarLoop]: Abstraction has 58124 states and 208585 transitions. [2021-10-08 15:54:53,596 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) [2021-10-08 15:54:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 58124 states and 208585 transitions. [2021-10-08 15:54:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:54:53,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:53,630 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:53,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-08 15:54:53,630 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:53,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:53,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1535780810, now seen corresponding path program 2 times [2021-10-08 15:54:53,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:53,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198145012] [2021-10-08 15:54:53,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:53,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:53,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:53,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198145012] [2021-10-08 15:54:53,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198145012] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:53,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:53,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:54:53,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004824119] [2021-10-08 15:54:53,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:54:53,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:53,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:54:53,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:54:53,701 INFO L87 Difference]: Start difference. First operand 58124 states and 208585 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) [2021-10-08 15:54:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:54:55,527 INFO L93 Difference]: Finished difference Result 102536 states and 361845 transitions. [2021-10-08 15:54:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:54:55,528 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 [2021-10-08 15:54:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:54:56,088 INFO L225 Difference]: With dead ends: 102536 [2021-10-08 15:54:56,089 INFO L226 Difference]: Without dead ends: 102536 [2021-10-08 15:54:56,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 102.4ms TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-10-08 15:54:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102536 states. [2021-10-08 15:54:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102536 to 58146. [2021-10-08 15:54:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58146 states, 58094 states have (on average 3.58735841911385) internal successors, (208404), 58145 states have internal predecessors, (208404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:54:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58146 states to 58146 states and 208404 transitions. [2021-10-08 15:54:59,201 INFO L78 Accepts]: Start accepts. Automaton has 58146 states and 208404 transitions. Word has length 18 [2021-10-08 15:54:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:54:59,201 INFO L470 AbstractCegarLoop]: Abstraction has 58146 states and 208404 transitions. [2021-10-08 15:54:59,201 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) [2021-10-08 15:54:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 58146 states and 208404 transitions. [2021-10-08 15:54:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:54:59,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:54:59,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:54:59,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-08 15:54:59,217 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:54:59,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:54:59,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1067618634, now seen corresponding path program 3 times [2021-10-08 15:54:59,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:54:59,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802121912] [2021-10-08 15:54:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:54:59,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:54:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:54:59,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:54:59,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:54:59,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802121912] [2021-10-08 15:54:59,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802121912] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:54:59,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:54:59,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:54:59,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249870803] [2021-10-08 15:54:59,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:54:59,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:54:59,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:54:59,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:54:59,276 INFO L87 Difference]: Start difference. First operand 58146 states and 208404 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) [2021-10-08 15:55:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:00,653 INFO L93 Difference]: Finished difference Result 80520 states and 290031 transitions. [2021-10-08 15:55:00,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 15:55:00,654 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 [2021-10-08 15:55:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:01,086 INFO L225 Difference]: With dead ends: 80520 [2021-10-08 15:55:01,086 INFO L226 Difference]: Without dead ends: 80520 [2021-10-08 15:55:01,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:55:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80520 states. [2021-10-08 15:55:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80520 to 57526. [2021-10-08 15:55:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57526 states, 57474 states have (on average 3.584786164178585) internal successors, (206032), 57525 states have internal predecessors, (206032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57526 states to 57526 states and 206032 transitions. [2021-10-08 15:55:03,724 INFO L78 Accepts]: Start accepts. Automaton has 57526 states and 206032 transitions. Word has length 18 [2021-10-08 15:55:03,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:03,724 INFO L470 AbstractCegarLoop]: Abstraction has 57526 states and 206032 transitions. [2021-10-08 15:55:03,724 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) [2021-10-08 15:55:03,724 INFO L276 IsEmpty]: Start isEmpty. Operand 57526 states and 206032 transitions. [2021-10-08 15:55:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:55:03,737 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:03,737 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:03,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-08 15:55:03,738 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:03,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:03,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1482637066, now seen corresponding path program 4 times [2021-10-08 15:55:03,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:03,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869451898] [2021-10-08 15:55:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:03,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:03,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:03,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869451898] [2021-10-08 15:55:03,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869451898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:03,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:03,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:55:03,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076085231] [2021-10-08 15:55:03,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:55:03,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:03,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:55:03,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:55:03,771 INFO L87 Difference]: Start difference. First operand 57526 states and 206032 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) [2021-10-08 15:55:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:05,341 INFO L93 Difference]: Finished difference Result 93882 states and 333047 transitions. [2021-10-08 15:55:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-08 15:55:05,341 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 [2021-10-08 15:55:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:05,819 INFO L225 Difference]: With dead ends: 93882 [2021-10-08 15:55:05,819 INFO L226 Difference]: Without dead ends: 93882 [2021-10-08 15:55:05,819 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 51.8ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-08 15:55:06,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93882 states. [2021-10-08 15:55:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93882 to 56946. [2021-10-08 15:55:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56946 states, 56894 states have (on average 3.5827152248040215) internal successors, (203835), 56945 states have internal predecessors, (203835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56946 states to 56946 states and 203835 transitions. [2021-10-08 15:55:08,795 INFO L78 Accepts]: Start accepts. Automaton has 56946 states and 203835 transitions. Word has length 18 [2021-10-08 15:55:08,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:08,795 INFO L470 AbstractCegarLoop]: Abstraction has 56946 states and 203835 transitions. [2021-10-08 15:55:08,796 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) [2021-10-08 15:55:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 56946 states and 203835 transitions. [2021-10-08 15:55:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:55:08,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:08,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:08,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-10-08 15:55:08,808 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:08,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:08,809 INFO L82 PathProgramCache]: Analyzing trace with hash 383674968, now seen corresponding path program 1 times [2021-10-08 15:55:08,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:08,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687436876] [2021-10-08 15:55:08,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:08,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:08,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:08,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687436876] [2021-10-08 15:55:08,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687436876] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:08,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:08,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:55:08,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760782448] [2021-10-08 15:55:08,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:55:08,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:08,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:55:08,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:55:08,857 INFO L87 Difference]: Start difference. First operand 56946 states and 203835 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) [2021-10-08 15:55:10,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:10,378 INFO L93 Difference]: Finished difference Result 88762 states and 314983 transitions. [2021-10-08 15:55:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:55:10,379 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 [2021-10-08 15:55:10,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:10,853 INFO L225 Difference]: With dead ends: 88762 [2021-10-08 15:55:10,853 INFO L226 Difference]: Without dead ends: 88762 [2021-10-08 15:55:10,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 84.4ms TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-10-08 15:55:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88762 states. [2021-10-08 15:55:13,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88762 to 61356. [2021-10-08 15:55:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61356 states, 61304 states have (on average 3.5858345295576144) internal successors, (219826), 61355 states have internal predecessors, (219826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61356 states to 61356 states and 219826 transitions. [2021-10-08 15:55:13,787 INFO L78 Accepts]: Start accepts. Automaton has 61356 states and 219826 transitions. Word has length 18 [2021-10-08 15:55:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:13,787 INFO L470 AbstractCegarLoop]: Abstraction has 61356 states and 219826 transitions. [2021-10-08 15:55:13,787 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) [2021-10-08 15:55:13,787 INFO L276 IsEmpty]: Start isEmpty. Operand 61356 states and 219826 transitions. [2021-10-08 15:55:13,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:55:13,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:13,806 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:13,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-10-08 15:55:13,807 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:13,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:13,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1372320922, now seen corresponding path program 1 times [2021-10-08 15:55:13,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:13,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75965928] [2021-10-08 15:55:13,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:13,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:13,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:13,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75965928] [2021-10-08 15:55:13,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75965928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:13,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:13,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:55:13,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594596328] [2021-10-08 15:55:13,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-08 15:55:13,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-08 15:55:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-08 15:55:13,863 INFO L87 Difference]: Start difference. First operand 61356 states and 219826 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) [2021-10-08 15:55:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:15,386 INFO L93 Difference]: Finished difference Result 73238 states and 256481 transitions. [2021-10-08 15:55:15,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:55:15,387 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 [2021-10-08 15:55:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:15,738 INFO L225 Difference]: With dead ends: 73238 [2021-10-08 15:55:15,739 INFO L226 Difference]: Without dead ends: 73238 [2021-10-08 15:55:15,739 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 70.9ms TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-08 15:55:15,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73238 states. [2021-10-08 15:55:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73238 to 57944. [2021-10-08 15:55:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57944 states, 57892 states have (on average 3.54753679264838) internal successors, (205374), 57943 states have internal predecessors, (205374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57944 states to 57944 states and 205374 transitions. [2021-10-08 15:55:17,900 INFO L78 Accepts]: Start accepts. Automaton has 57944 states and 205374 transitions. Word has length 18 [2021-10-08 15:55:17,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:17,901 INFO L470 AbstractCegarLoop]: Abstraction has 57944 states and 205374 transitions. [2021-10-08 15:55:17,901 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) [2021-10-08 15:55:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 57944 states and 205374 transitions. [2021-10-08 15:55:17,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-08 15:55:17,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:17,914 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:17,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-10-08 15:55:17,914 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:17,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:17,915 INFO L82 PathProgramCache]: Analyzing trace with hash 88312379, now seen corresponding path program 1 times [2021-10-08 15:55:17,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:17,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57493191] [2021-10-08 15:55:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:17,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:17,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:17,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57493191] [2021-10-08 15:55:17,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57493191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:17,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:17,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:55:17,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807324509] [2021-10-08 15:55:17,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:55:17,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:55:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:55:17,961 INFO L87 Difference]: Start difference. First operand 57944 states and 205374 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) [2021-10-08 15:55:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:19,526 INFO L93 Difference]: Finished difference Result 88830 states and 312741 transitions. [2021-10-08 15:55:19,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 15:55:19,527 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 [2021-10-08 15:55:19,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:20,096 INFO L225 Difference]: With dead ends: 88830 [2021-10-08 15:55:20,097 INFO L226 Difference]: Without dead ends: 88830 [2021-10-08 15:55:20,097 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 110.4ms TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2021-10-08 15:55:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88830 states. [2021-10-08 15:55:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88830 to 52374. [2021-10-08 15:55:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52374 states, 52322 states have (on average 3.543404304116815) internal successors, (185398), 52373 states have internal predecessors, (185398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52374 states to 52374 states and 185398 transitions. [2021-10-08 15:55:23,271 INFO L78 Accepts]: Start accepts. Automaton has 52374 states and 185398 transitions. Word has length 18 [2021-10-08 15:55:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:23,272 INFO L470 AbstractCegarLoop]: Abstraction has 52374 states and 185398 transitions. [2021-10-08 15:55:23,272 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) [2021-10-08 15:55:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 52374 states and 185398 transitions. [2021-10-08 15:55:23,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 15:55:23,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:23,290 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:23,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-08 15:55:23,291 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:23,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:23,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1562292689, now seen corresponding path program 1 times [2021-10-08 15:55:23,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:23,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103512798] [2021-10-08 15:55:23,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:23,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:23,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:23,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103512798] [2021-10-08 15:55:23,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103512798] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:23,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:23,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:55:23,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436814272] [2021-10-08 15:55:23,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:55:23,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:55:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:55:23,392 INFO L87 Difference]: Start difference. First operand 52374 states and 185398 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) [2021-10-08 15:55:26,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:26,006 INFO L93 Difference]: Finished difference Result 101666 states and 354234 transitions. [2021-10-08 15:55:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-08 15:55:26,006 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 [2021-10-08 15:55:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:26,835 INFO L225 Difference]: With dead ends: 101666 [2021-10-08 15:55:26,835 INFO L226 Difference]: Without dead ends: 101666 [2021-10-08 15:55:26,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 315.0ms TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2021-10-08 15:55:27,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101666 states. [2021-10-08 15:55:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101666 to 55888. [2021-10-08 15:55:29,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55888 states, 55836 states have (on average 3.537269861737947) internal successors, (197507), 55887 states have internal predecessors, (197507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55888 states to 55888 states and 197507 transitions. [2021-10-08 15:55:29,936 INFO L78 Accepts]: Start accepts. Automaton has 55888 states and 197507 transitions. Word has length 19 [2021-10-08 15:55:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:29,936 INFO L470 AbstractCegarLoop]: Abstraction has 55888 states and 197507 transitions. [2021-10-08 15:55:29,936 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) [2021-10-08 15:55:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 55888 states and 197507 transitions. [2021-10-08 15:55:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 15:55:29,953 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:29,953 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:29,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-10-08 15:55:29,953 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:29,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:29,954 INFO L82 PathProgramCache]: Analyzing trace with hash 138101507, now seen corresponding path program 2 times [2021-10-08 15:55:29,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:29,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644082766] [2021-10-08 15:55:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:29,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:30,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:30,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:30,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644082766] [2021-10-08 15:55:30,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644082766] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:30,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:30,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:55:30,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559718125] [2021-10-08 15:55:30,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:55:30,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:30,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:55:30,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:55:30,025 INFO L87 Difference]: Start difference. First operand 55888 states and 197507 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) [2021-10-08 15:55:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:32,569 INFO L93 Difference]: Finished difference Result 109824 states and 381172 transitions. [2021-10-08 15:55:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-08 15:55:32,569 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 [2021-10-08 15:55:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:33,711 INFO L225 Difference]: With dead ends: 109824 [2021-10-08 15:55:33,711 INFO L226 Difference]: Without dead ends: 109824 [2021-10-08 15:55:33,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 256.6ms TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260 [2021-10-08 15:55:33,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109824 states. [2021-10-08 15:55:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109824 to 56020. [2021-10-08 15:55:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56020 states, 55968 states have (on average 3.5370390222984565) internal successors, (197961), 56019 states have internal predecessors, (197961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56020 states to 56020 states and 197961 transitions. [2021-10-08 15:55:36,411 INFO L78 Accepts]: Start accepts. Automaton has 56020 states and 197961 transitions. Word has length 19 [2021-10-08 15:55:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:36,411 INFO L470 AbstractCegarLoop]: Abstraction has 56020 states and 197961 transitions. [2021-10-08 15:55:36,412 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) [2021-10-08 15:55:36,412 INFO L276 IsEmpty]: Start isEmpty. Operand 56020 states and 197961 transitions. [2021-10-08 15:55:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 15:55:36,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:36,425 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:36,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-10-08 15:55:36,426 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:36,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:36,426 INFO L82 PathProgramCache]: Analyzing trace with hash 443853231, now seen corresponding path program 3 times [2021-10-08 15:55:36,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:36,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473633474] [2021-10-08 15:55:36,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:36,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:36,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:36,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473633474] [2021-10-08 15:55:36,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473633474] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:36,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:36,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-08 15:55:36,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856143913] [2021-10-08 15:55:36,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 15:55:36,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:36,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 15:55:36,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:55:36,499 INFO L87 Difference]: Start difference. First operand 56020 states and 197961 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) [2021-10-08 15:55:39,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:39,788 INFO L93 Difference]: Finished difference Result 116368 states and 404132 transitions. [2021-10-08 15:55:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-08 15:55:39,789 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 [2021-10-08 15:55:39,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:40,408 INFO L225 Difference]: With dead ends: 116368 [2021-10-08 15:55:40,409 INFO L226 Difference]: Without dead ends: 116368 [2021-10-08 15:55:40,409 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 851.1ms TimeCoverageRelationStatistics Valid=499, Invalid=1757, Unknown=0, NotChecked=0, Total=2256 [2021-10-08 15:55:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116368 states. [2021-10-08 15:55:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116368 to 55042. [2021-10-08 15:55:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55042 states, 54990 states have (on average 3.540643753409711) internal successors, (194700), 55041 states have internal predecessors, (194700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55042 states to 55042 states and 194700 transitions. [2021-10-08 15:55:43,511 INFO L78 Accepts]: Start accepts. Automaton has 55042 states and 194700 transitions. Word has length 19 [2021-10-08 15:55:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:43,512 INFO L470 AbstractCegarLoop]: Abstraction has 55042 states and 194700 transitions. [2021-10-08 15:55:43,512 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) [2021-10-08 15:55:43,512 INFO L276 IsEmpty]: Start isEmpty. Operand 55042 states and 194700 transitions. [2021-10-08 15:55:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 15:55:43,530 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:43,530 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:43,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-10-08 15:55:43,530 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:43,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:43,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1184272337, now seen corresponding path program 4 times [2021-10-08 15:55:43,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:43,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043531452] [2021-10-08 15:55:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:43,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:43,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:43,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043531452] [2021-10-08 15:55:43,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043531452] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:43,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:43,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:55:43,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814404729] [2021-10-08 15:55:43,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:55:43,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:43,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:55:43,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:55:43,590 INFO L87 Difference]: Start difference. First operand 55042 states and 194700 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) [2021-10-08 15:55:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:45,718 INFO L93 Difference]: Finished difference Result 98076 states and 344246 transitions. [2021-10-08 15:55:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-08 15:55:45,718 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 [2021-10-08 15:55:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:46,213 INFO L225 Difference]: With dead ends: 98076 [2021-10-08 15:55:46,213 INFO L226 Difference]: Without dead ends: 98076 [2021-10-08 15:55:46,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 244.8ms TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2021-10-08 15:55:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98076 states. [2021-10-08 15:55:48,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98076 to 55306. [2021-10-08 15:55:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55306 states, 55254 states have (on average 3.540648640822384) internal successors, (195635), 55305 states have internal predecessors, (195635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55306 states to 55306 states and 195635 transitions. [2021-10-08 15:55:49,000 INFO L78 Accepts]: Start accepts. Automaton has 55306 states and 195635 transitions. Word has length 19 [2021-10-08 15:55:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:49,001 INFO L470 AbstractCegarLoop]: Abstraction has 55306 states and 195635 transitions. [2021-10-08 15:55:49,001 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) [2021-10-08 15:55:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 55306 states and 195635 transitions. [2021-10-08 15:55:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 15:55:49,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:49,020 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:55:49,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-10-08 15:55:49,020 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:49,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1362179587, now seen corresponding path program 5 times [2021-10-08 15:55:49,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:49,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317601210] [2021-10-08 15:55:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:49,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:49,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:49,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317601210] [2021-10-08 15:55:49,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317601210] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:49,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:49,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:55:49,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689383207] [2021-10-08 15:55:49,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:55:49,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:49,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:55:49,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:55:49,098 INFO L87 Difference]: Start difference. First operand 55306 states and 195635 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) [2021-10-08 15:55:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:51,513 INFO L93 Difference]: Finished difference Result 125308 states and 437512 transitions. [2021-10-08 15:55:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-08 15:55:51,514 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 [2021-10-08 15:55:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:52,649 INFO L225 Difference]: With dead ends: 125308 [2021-10-08 15:55:52,649 INFO L226 Difference]: Without dead ends: 125308 [2021-10-08 15:55:52,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 325.4ms TimeCoverageRelationStatistics Valid=495, Invalid=1761, Unknown=0, NotChecked=0, Total=2256 [2021-10-08 15:55:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125308 states. [2021-10-08 15:55:54,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125308 to 51378. [2021-10-08 15:55:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51378 states, 51327 states have (on average 3.532857950006819) internal successors, (181331), 51377 states have internal predecessors, (181331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51378 states to 51378 states and 181331 transitions. [2021-10-08 15:55:55,253 INFO L78 Accepts]: Start accepts. Automaton has 51378 states and 181331 transitions. Word has length 19 [2021-10-08 15:55:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:55,253 INFO L470 AbstractCegarLoop]: Abstraction has 51378 states and 181331 transitions. [2021-10-08 15:55:55,253 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) [2021-10-08 15:55:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 51378 states and 181331 transitions. [2021-10-08 15:55:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 15:55:55,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:55,271 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] [2021-10-08 15:55:55,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-10-08 15:55:55,272 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:55,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:55,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1562687137, now seen corresponding path program 1 times [2021-10-08 15:55:55,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:55,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42379909] [2021-10-08 15:55:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:55,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:55,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:55,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42379909] [2021-10-08 15:55:55,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42379909] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:55,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:55,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:55:55,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800612396] [2021-10-08 15:55:55,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:55:55,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:55,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:55:55,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:55:55,305 INFO L87 Difference]: Start difference. First operand 51378 states and 181331 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) [2021-10-08 15:55:56,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:55:56,517 INFO L93 Difference]: Finished difference Result 56340 states and 198340 transitions. [2021-10-08 15:55:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 15:55:56,518 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 [2021-10-08 15:55:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:55:56,761 INFO L225 Difference]: With dead ends: 56340 [2021-10-08 15:55:56,761 INFO L226 Difference]: Without dead ends: 56340 [2021-10-08 15:55:56,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:55:56,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56340 states. [2021-10-08 15:55:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56340 to 42576. [2021-10-08 15:55:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42576 states, 42525 states have (on average 3.52994708994709) internal successors, (150111), 42575 states have internal predecessors, (150111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:55:58,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42576 states to 42576 states and 150111 transitions. [2021-10-08 15:55:58,710 INFO L78 Accepts]: Start accepts. Automaton has 42576 states and 150111 transitions. Word has length 20 [2021-10-08 15:55:58,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:55:58,710 INFO L470 AbstractCegarLoop]: Abstraction has 42576 states and 150111 transitions. [2021-10-08 15:55:58,710 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) [2021-10-08 15:55:58,710 INFO L276 IsEmpty]: Start isEmpty. Operand 42576 states and 150111 transitions. [2021-10-08 15:55:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 15:55:58,725 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:55:58,725 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] [2021-10-08 15:55:58,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-10-08 15:55:58,725 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:55:58,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:55:58,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1954710888, now seen corresponding path program 1 times [2021-10-08 15:55:58,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:55:58,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355293757] [2021-10-08 15:55:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:55:58,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:55:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:55:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:55:58,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:55:58,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355293757] [2021-10-08 15:55:58,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355293757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:55:58,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:55:58,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:55:58,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909637102] [2021-10-08 15:55:58,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:55:58,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:55:58,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:55:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:55:58,806 INFO L87 Difference]: Start difference. First operand 42576 states and 150111 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) [2021-10-08 15:56:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:01,106 INFO L93 Difference]: Finished difference Result 89202 states and 311493 transitions. [2021-10-08 15:56:01,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-08 15:56:01,107 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 [2021-10-08 15:56:01,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:01,548 INFO L225 Difference]: With dead ends: 89202 [2021-10-08 15:56:01,549 INFO L226 Difference]: Without dead ends: 89202 [2021-10-08 15:56:01,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 434.3ms TimeCoverageRelationStatistics Valid=631, Invalid=2449, Unknown=0, NotChecked=0, Total=3080 [2021-10-08 15:56:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89202 states. [2021-10-08 15:56:03,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89202 to 42874. [2021-10-08 15:56:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42874 states, 42823 states have (on average 3.529528524391098) internal successors, (151145), 42873 states have internal predecessors, (151145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42874 states to 42874 states and 151145 transitions. [2021-10-08 15:56:03,779 INFO L78 Accepts]: Start accepts. Automaton has 42874 states and 151145 transitions. Word has length 20 [2021-10-08 15:56:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:03,779 INFO L470 AbstractCegarLoop]: Abstraction has 42874 states and 151145 transitions. [2021-10-08 15:56:03,780 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) [2021-10-08 15:56:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 42874 states and 151145 transitions. [2021-10-08 15:56:03,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-08 15:56:03,796 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:03,796 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] [2021-10-08 15:56:03,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-10-08 15:56:03,796 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:03,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:03,797 INFO L82 PathProgramCache]: Analyzing trace with hash 897594260, now seen corresponding path program 2 times [2021-10-08 15:56:03,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:03,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418982343] [2021-10-08 15:56:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:03,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:03,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:03,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418982343] [2021-10-08 15:56:03,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418982343] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:03,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:03,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:56:03,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758642685] [2021-10-08 15:56:03,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:56:03,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:56:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:56:03,873 INFO L87 Difference]: Start difference. First operand 42874 states and 151145 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) [2021-10-08 15:56:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:06,466 INFO L93 Difference]: Finished difference Result 103412 states and 360640 transitions. [2021-10-08 15:56:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-08 15:56:06,466 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 [2021-10-08 15:56:06,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:07,606 INFO L225 Difference]: With dead ends: 103412 [2021-10-08 15:56:07,606 INFO L226 Difference]: Without dead ends: 103412 [2021-10-08 15:56:07,607 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 473.7ms TimeCoverageRelationStatistics Valid=776, Invalid=3130, Unknown=0, NotChecked=0, Total=3906 [2021-10-08 15:56:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103412 states. [2021-10-08 15:56:09,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103412 to 43742. [2021-10-08 15:56:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43742 states, 43691 states have (on average 3.531825776475704) internal successors, (154309), 43741 states have internal predecessors, (154309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:10,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43742 states to 43742 states and 154309 transitions. [2021-10-08 15:56:10,003 INFO L78 Accepts]: Start accepts. Automaton has 43742 states and 154309 transitions. Word has length 20 [2021-10-08 15:56:10,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:10,003 INFO L470 AbstractCegarLoop]: Abstraction has 43742 states and 154309 transitions. [2021-10-08 15:56:10,003 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) [2021-10-08 15:56:10,003 INFO L276 IsEmpty]: Start isEmpty. Operand 43742 states and 154309 transitions. [2021-10-08 15:56:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:56:10,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:10,029 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] [2021-10-08 15:56:10,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-10-08 15:56:10,030 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:10,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1717760441, now seen corresponding path program 1 times [2021-10-08 15:56:10,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:10,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553025108] [2021-10-08 15:56:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:10,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:10,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:10,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553025108] [2021-10-08 15:56:10,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553025108] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:10,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:10,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:10,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953145624] [2021-10-08 15:56:10,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:10,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:10,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:10,098 INFO L87 Difference]: Start difference. First operand 43742 states and 154309 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) [2021-10-08 15:56:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:11,983 INFO L93 Difference]: Finished difference Result 67318 states and 233333 transitions. [2021-10-08 15:56:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-08 15:56:11,984 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 [2021-10-08 15:56:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:12,400 INFO L225 Difference]: With dead ends: 67318 [2021-10-08 15:56:12,400 INFO L226 Difference]: Without dead ends: 67318 [2021-10-08 15:56:12,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 76.3ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-08 15:56:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67318 states. [2021-10-08 15:56:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67318 to 43560. [2021-10-08 15:56:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43560 states, 43509 states have (on average 3.528442391229401) internal successors, (153519), 43559 states have internal predecessors, (153519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43560 states to 43560 states and 153519 transitions. [2021-10-08 15:56:14,689 INFO L78 Accepts]: Start accepts. Automaton has 43560 states and 153519 transitions. Word has length 21 [2021-10-08 15:56:14,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:14,689 INFO L470 AbstractCegarLoop]: Abstraction has 43560 states and 153519 transitions. [2021-10-08 15:56:14,690 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) [2021-10-08 15:56:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 43560 states and 153519 transitions. [2021-10-08 15:56:14,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:56:14,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:14,713 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] [2021-10-08 15:56:14,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-08 15:56:14,714 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1720121859, now seen corresponding path program 1 times [2021-10-08 15:56:14,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:14,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621798424] [2021-10-08 15:56:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:14,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:14,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:14,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621798424] [2021-10-08 15:56:14,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621798424] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:14,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:14,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:56:14,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771137051] [2021-10-08 15:56:14,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:56:14,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:14,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:56:14,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:56:14,754 INFO L87 Difference]: Start difference. First operand 43560 states and 153519 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) [2021-10-08 15:56:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:15,358 INFO L93 Difference]: Finished difference Result 58956 states and 201522 transitions. [2021-10-08 15:56:15,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-08 15:56:15,358 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 [2021-10-08 15:56:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:15,586 INFO L225 Difference]: With dead ends: 58956 [2021-10-08 15:56:15,586 INFO L226 Difference]: Without dead ends: 58956 [2021-10-08 15:56:15,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:56:16,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58956 states. [2021-10-08 15:56:17,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58956 to 38802. [2021-10-08 15:56:17,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38802 states, 38751 states have (on average 3.496322675543857) internal successors, (135486), 38801 states have internal predecessors, (135486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38802 states to 38802 states and 135486 transitions. [2021-10-08 15:56:17,330 INFO L78 Accepts]: Start accepts. Automaton has 38802 states and 135486 transitions. Word has length 21 [2021-10-08 15:56:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:17,330 INFO L470 AbstractCegarLoop]: Abstraction has 38802 states and 135486 transitions. [2021-10-08 15:56:17,331 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) [2021-10-08 15:56:17,331 INFO L276 IsEmpty]: Start isEmpty. Operand 38802 states and 135486 transitions. [2021-10-08 15:56:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:56:17,348 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:17,348 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] [2021-10-08 15:56:17,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-08 15:56:17,348 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:17,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:17,349 INFO L82 PathProgramCache]: Analyzing trace with hash 2017451867, now seen corresponding path program 2 times [2021-10-08 15:56:17,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:17,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244266173] [2021-10-08 15:56:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:17,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:17,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:17,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244266173] [2021-10-08 15:56:17,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244266173] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:17,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:17,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:56:17,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368708172] [2021-10-08 15:56:17,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:56:17,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:17,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:56:17,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:56:17,376 INFO L87 Difference]: Start difference. First operand 38802 states and 135486 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) [2021-10-08 15:56:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:18,342 INFO L93 Difference]: Finished difference Result 49898 states and 171801 transitions. [2021-10-08 15:56:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:56:18,343 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 [2021-10-08 15:56:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:18,651 INFO L225 Difference]: With dead ends: 49898 [2021-10-08 15:56:18,652 INFO L226 Difference]: Without dead ends: 49898 [2021-10-08 15:56:18,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:56:18,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49898 states. [2021-10-08 15:56:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49898 to 39000. [2021-10-08 15:56:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39000 states, 38949 states have (on average 3.4936455364707695) internal successors, (136074), 38999 states have internal predecessors, (136074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39000 states to 39000 states and 136074 transitions. [2021-10-08 15:56:20,101 INFO L78 Accepts]: Start accepts. Automaton has 39000 states and 136074 transitions. Word has length 21 [2021-10-08 15:56:20,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:20,102 INFO L470 AbstractCegarLoop]: Abstraction has 39000 states and 136074 transitions. [2021-10-08 15:56:20,102 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) [2021-10-08 15:56:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand 39000 states and 136074 transitions. [2021-10-08 15:56:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:56:20,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:20,117 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] [2021-10-08 15:56:20,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-10-08 15:56:20,117 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:20,117 INFO L82 PathProgramCache]: Analyzing trace with hash 347286813, now seen corresponding path program 3 times [2021-10-08 15:56:20,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:20,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492501009] [2021-10-08 15:56:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:20,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:20,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:20,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492501009] [2021-10-08 15:56:20,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492501009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:20,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:20,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:56:20,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468122629] [2021-10-08 15:56:20,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:56:20,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:20,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:56:20,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:56:20,182 INFO L87 Difference]: Start difference. First operand 39000 states and 136074 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) [2021-10-08 15:56:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:24,027 INFO L93 Difference]: Finished difference Result 129850 states and 451286 transitions. [2021-10-08 15:56:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-10-08 15:56:24,028 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 [2021-10-08 15:56:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:24,726 INFO L225 Difference]: With dead ends: 129850 [2021-10-08 15:56:24,726 INFO L226 Difference]: Without dead ends: 129850 [2021-10-08 15:56:24,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2360 ImplicationChecksByTransitivity, 1055.8ms TimeCoverageRelationStatistics Valid=1123, Invalid=4729, Unknown=0, NotChecked=0, Total=5852 [2021-10-08 15:56:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129850 states. [2021-10-08 15:56:27,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129850 to 39726. [2021-10-08 15:56:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39726 states, 39675 states have (on average 3.4972904851921864) internal successors, (138755), 39725 states have internal predecessors, (138755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39726 states to 39726 states and 138755 transitions. [2021-10-08 15:56:27,645 INFO L78 Accepts]: Start accepts. Automaton has 39726 states and 138755 transitions. Word has length 21 [2021-10-08 15:56:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:27,649 INFO L470 AbstractCegarLoop]: Abstraction has 39726 states and 138755 transitions. [2021-10-08 15:56:27,649 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) [2021-10-08 15:56:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 39726 states and 138755 transitions. [2021-10-08 15:56:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-08 15:56:27,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:27,696 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] [2021-10-08 15:56:27,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-10-08 15:56:27,700 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:27,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1175217407, now seen corresponding path program 1 times [2021-10-08 15:56:27,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:27,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151778907] [2021-10-08 15:56:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:27,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:27,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:27,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151778907] [2021-10-08 15:56:27,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151778907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:27,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:27,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-08 15:56:27,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368206034] [2021-10-08 15:56:27,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 15:56:27,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 15:56:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:56:27,753 INFO L87 Difference]: Start difference. First operand 39726 states and 138755 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) [2021-10-08 15:56:28,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:28,266 INFO L93 Difference]: Finished difference Result 42818 states and 148207 transitions. [2021-10-08 15:56:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-08 15:56:28,266 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 [2021-10-08 15:56:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:28,420 INFO L225 Difference]: With dead ends: 42818 [2021-10-08 15:56:28,420 INFO L226 Difference]: Without dead ends: 42818 [2021-10-08 15:56:28,420 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:56:28,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42818 states. [2021-10-08 15:56:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42818 to 37480. [2021-10-08 15:56:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37480 states, 37429 states have (on average 3.477944909027759) internal successors, (130176), 37479 states have internal predecessors, (130176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37480 states to 37480 states and 130176 transitions. [2021-10-08 15:56:30,112 INFO L78 Accepts]: Start accepts. Automaton has 37480 states and 130176 transitions. Word has length 21 [2021-10-08 15:56:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:30,113 INFO L470 AbstractCegarLoop]: Abstraction has 37480 states and 130176 transitions. [2021-10-08 15:56:30,113 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) [2021-10-08 15:56:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 37480 states and 130176 transitions. [2021-10-08 15:56:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:30,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:30,138 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] [2021-10-08 15:56:30,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-10-08 15:56:30,139 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:30,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:30,139 INFO L82 PathProgramCache]: Analyzing trace with hash 17527766, now seen corresponding path program 1 times [2021-10-08 15:56:30,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:30,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729318598] [2021-10-08 15:56:30,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:30,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:30,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:30,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729318598] [2021-10-08 15:56:30,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729318598] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:30,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:30,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:56:30,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376543768] [2021-10-08 15:56:30,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:56:30,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:56:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:56:30,206 INFO L87 Difference]: Start difference. First operand 37480 states and 130176 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) [2021-10-08 15:56:32,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:32,417 INFO L93 Difference]: Finished difference Result 77538 states and 266399 transitions. [2021-10-08 15:56:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-08 15:56:32,417 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 [2021-10-08 15:56:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:32,827 INFO L225 Difference]: With dead ends: 77538 [2021-10-08 15:56:32,827 INFO L226 Difference]: Without dead ends: 77538 [2021-10-08 15:56:32,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 380.6ms TimeCoverageRelationStatistics Valid=545, Invalid=1807, Unknown=0, NotChecked=0, Total=2352 [2021-10-08 15:56:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77538 states. [2021-10-08 15:56:34,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77538 to 37278. [2021-10-08 15:56:34,236 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) [2021-10-08 15:56:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37278 states to 37278 states and 129459 transitions. [2021-10-08 15:56:34,377 INFO L78 Accepts]: Start accepts. Automaton has 37278 states and 129459 transitions. Word has length 22 [2021-10-08 15:56:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:34,377 INFO L470 AbstractCegarLoop]: Abstraction has 37278 states and 129459 transitions. [2021-10-08 15:56:34,377 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) [2021-10-08 15:56:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 37278 states and 129459 transitions. [2021-10-08 15:56:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:34,396 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:34,396 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] [2021-10-08 15:56:34,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-10-08 15:56:34,397 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:34,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:34,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1657400557, now seen corresponding path program 1 times [2021-10-08 15:56:34,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:34,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142961197] [2021-10-08 15:56:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:34,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:34,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:34,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142961197] [2021-10-08 15:56:34,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142961197] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:34,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:34,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:56:34,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261694932] [2021-10-08 15:56:34,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:56:34,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:34,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:56:34,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:56:34,831 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) [2021-10-08 15:56:36,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:36,395 INFO L93 Difference]: Finished difference Result 77392 states and 266693 transitions. [2021-10-08 15:56:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-08 15:56:36,396 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 [2021-10-08 15:56:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:37,226 INFO L225 Difference]: With dead ends: 77392 [2021-10-08 15:56:37,227 INFO L226 Difference]: Without dead ends: 77392 [2021-10-08 15:56:37,227 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 309.5ms TimeCoverageRelationStatistics Valid=401, Invalid=1491, Unknown=0, NotChecked=0, Total=1892 [2021-10-08 15:56:37,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77392 states. [2021-10-08 15:56:38,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77392 to 37222. [2021-10-08 15:56:38,596 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) [2021-10-08 15:56:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37222 states to 37222 states and 129253 transitions. [2021-10-08 15:56:38,731 INFO L78 Accepts]: Start accepts. Automaton has 37222 states and 129253 transitions. Word has length 22 [2021-10-08 15:56:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:38,731 INFO L470 AbstractCegarLoop]: Abstraction has 37222 states and 129253 transitions. [2021-10-08 15:56:38,731 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) [2021-10-08 15:56:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 37222 states and 129253 transitions. [2021-10-08 15:56:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:38,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:38,749 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] [2021-10-08 15:56:38,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-10-08 15:56:38,749 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:38,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:38,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1871454831, now seen corresponding path program 1 times [2021-10-08 15:56:38,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:38,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688810039] [2021-10-08 15:56:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:38,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:38,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:38,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688810039] [2021-10-08 15:56:38,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688810039] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:38,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:38,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:38,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639700525] [2021-10-08 15:56:38,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:38,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:38,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:38,784 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) [2021-10-08 15:56:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:40,427 INFO L93 Difference]: Finished difference Result 59646 states and 203112 transitions. [2021-10-08 15:56:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:56:40,428 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 22 [2021-10-08 15:56:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:40,785 INFO L225 Difference]: With dead ends: 59646 [2021-10-08 15:56:40,785 INFO L226 Difference]: Without dead ends: 59646 [2021-10-08 15:56:40,785 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 73.5ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:56:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59646 states. [2021-10-08 15:56:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59646 to 38122. [2021-10-08 15:56:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38122 states, 38072 states have (on average 3.4490439167892415) internal successors, (131312), 38121 states have internal predecessors, (131312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38122 states to 38122 states and 131312 transitions. [2021-10-08 15:56:42,714 INFO L78 Accepts]: Start accepts. Automaton has 38122 states and 131312 transitions. Word has length 22 [2021-10-08 15:56:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:42,715 INFO L470 AbstractCegarLoop]: Abstraction has 38122 states and 131312 transitions. [2021-10-08 15:56:42,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 15:56:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 38122 states and 131312 transitions. [2021-10-08 15:56:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:42,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:42,732 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] [2021-10-08 15:56:42,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-10-08 15:56:42,733 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:42,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:42,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1242456473, now seen corresponding path program 2 times [2021-10-08 15:56:42,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:42,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115629389] [2021-10-08 15:56:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:42,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:42,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:42,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:42,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115629389] [2021-10-08 15:56:42,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115629389] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:42,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:42,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:42,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791490634] [2021-10-08 15:56:42,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:42,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:42,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:42,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:42,764 INFO L87 Difference]: Start difference. First operand 38122 states and 131312 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) [2021-10-08 15:56:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:43,417 INFO L93 Difference]: Finished difference Result 49794 states and 171934 transitions. [2021-10-08 15:56:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:56:43,417 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 22 [2021-10-08 15:56:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:43,607 INFO L225 Difference]: With dead ends: 49794 [2021-10-08 15:56:43,608 INFO L226 Difference]: Without dead ends: 49794 [2021-10-08 15:56:43,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 74.1ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:56:44,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49794 states. [2021-10-08 15:56:45,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49794 to 38198. [2021-10-08 15:56:45,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38198 states, 38148 states have (on average 3.4485949459997904) internal successors, (131557), 38197 states have internal predecessors, (131557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38198 states to 38198 states and 131557 transitions. [2021-10-08 15:56:45,267 INFO L78 Accepts]: Start accepts. Automaton has 38198 states and 131557 transitions. Word has length 22 [2021-10-08 15:56:45,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:45,267 INFO L470 AbstractCegarLoop]: Abstraction has 38198 states and 131557 transitions. [2021-10-08 15:56:45,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 15:56:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 38198 states and 131557 transitions. [2021-10-08 15:56:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:45,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:45,289 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] [2021-10-08 15:56:45,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-10-08 15:56:45,289 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:45,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:45,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1556406803, now seen corresponding path program 3 times [2021-10-08 15:56:45,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:45,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707866367] [2021-10-08 15:56:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:45,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:45,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:45,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707866367] [2021-10-08 15:56:45,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707866367] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:45,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:45,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:45,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382831011] [2021-10-08 15:56:45,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:45,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:45,322 INFO L87 Difference]: Start difference. First operand 38198 states and 131557 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) [2021-10-08 15:56:46,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:46,475 INFO L93 Difference]: Finished difference Result 51288 states and 177495 transitions. [2021-10-08 15:56:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:56:46,479 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 22 [2021-10-08 15:56:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:46,797 INFO L225 Difference]: With dead ends: 51288 [2021-10-08 15:56:46,797 INFO L226 Difference]: Without dead ends: 51288 [2021-10-08 15:56:46,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 78.6ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-08 15:56:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51288 states. [2021-10-08 15:56:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51288 to 38350. [2021-10-08 15:56:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38350 states, 38300 states have (on average 3.4481201044386425) internal successors, (132063), 38349 states have internal predecessors, (132063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:48,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38350 states to 38350 states and 132063 transitions. [2021-10-08 15:56:48,154 INFO L78 Accepts]: Start accepts. Automaton has 38350 states and 132063 transitions. Word has length 22 [2021-10-08 15:56:48,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:48,154 INFO L470 AbstractCegarLoop]: Abstraction has 38350 states and 132063 transitions. [2021-10-08 15:56:48,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 15:56:48,155 INFO L276 IsEmpty]: Start isEmpty. Operand 38350 states and 132063 transitions. [2021-10-08 15:56:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:48,172 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:48,172 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] [2021-10-08 15:56:48,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-10-08 15:56:48,173 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:48,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:48,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1701501931, now seen corresponding path program 4 times [2021-10-08 15:56:48,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:48,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190286848] [2021-10-08 15:56:48,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:48,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:48,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:48,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190286848] [2021-10-08 15:56:48,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190286848] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:48,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:48,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:48,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97061986] [2021-10-08 15:56:48,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:48,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:48,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:48,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:48,205 INFO L87 Difference]: Start difference. First operand 38350 states and 132063 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) [2021-10-08 15:56:49,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:49,322 INFO L93 Difference]: Finished difference Result 49770 states and 171498 transitions. [2021-10-08 15:56:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-08 15:56:49,323 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 22 [2021-10-08 15:56:49,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:49,558 INFO L225 Difference]: With dead ends: 49770 [2021-10-08 15:56:49,558 INFO L226 Difference]: Without dead ends: 49770 [2021-10-08 15:56:49,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-08 15:56:49,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49770 states. [2021-10-08 15:56:50,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49770 to 38258. [2021-10-08 15:56:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38258 states, 38208 states have (on average 3.4478119765494135) internal successors, (131734), 38257 states have internal predecessors, (131734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38258 states to 38258 states and 131734 transitions. [2021-10-08 15:56:50,917 INFO L78 Accepts]: Start accepts. Automaton has 38258 states and 131734 transitions. Word has length 22 [2021-10-08 15:56:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:50,917 INFO L470 AbstractCegarLoop]: Abstraction has 38258 states and 131734 transitions. [2021-10-08 15:56:50,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 15:56:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 38258 states and 131734 transitions. [2021-10-08 15:56:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:50,935 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:50,936 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] [2021-10-08 15:56:50,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-10-08 15:56:50,936 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:50,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:50,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1097361345, now seen corresponding path program 5 times [2021-10-08 15:56:50,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:50,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910766774] [2021-10-08 15:56:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:50,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:50,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:50,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910766774] [2021-10-08 15:56:50,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910766774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:50,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:50,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:50,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536069445] [2021-10-08 15:56:50,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:50,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:50,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:50,966 INFO L87 Difference]: Start difference. First operand 38258 states and 131734 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) [2021-10-08 15:56:52,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:52,402 INFO L93 Difference]: Finished difference Result 50044 states and 172814 transitions. [2021-10-08 15:56:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:56:52,404 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 22 [2021-10-08 15:56:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:52,728 INFO L225 Difference]: With dead ends: 50044 [2021-10-08 15:56:52,728 INFO L226 Difference]: Without dead ends: 50044 [2021-10-08 15:56:52,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 77.0ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:56:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50044 states. [2021-10-08 15:56:54,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50044 to 38182. [2021-10-08 15:56:54,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38182 states, 38132 states have (on average 3.4482586803734394) internal successors, (131489), 38181 states have internal predecessors, (131489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38182 states to 38182 states and 131489 transitions. [2021-10-08 15:56:54,248 INFO L78 Accepts]: Start accepts. Automaton has 38182 states and 131489 transitions. Word has length 22 [2021-10-08 15:56:54,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:54,248 INFO L470 AbstractCegarLoop]: Abstraction has 38182 states and 131489 transitions. [2021-10-08 15:56:54,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 15:56:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 38182 states and 131489 transitions. [2021-10-08 15:56:54,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:54,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:54,266 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, 1] [2021-10-08 15:56:54,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-10-08 15:56:54,267 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash -245027921, now seen corresponding path program 6 times [2021-10-08 15:56:54,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:54,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123980506] [2021-10-08 15:56:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:54,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:54,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:54,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123980506] [2021-10-08 15:56:54,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123980506] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:54,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:54,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-08 15:56:54,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729088165] [2021-10-08 15:56:54,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 15:56:54,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:54,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 15:56:54,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-08 15:56:54,299 INFO L87 Difference]: Start difference. First operand 38182 states and 131489 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) [2021-10-08 15:56:55,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:55,653 INFO L93 Difference]: Finished difference Result 64534 states and 220522 transitions. [2021-10-08 15:56:55,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-08 15:56:55,653 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 22 [2021-10-08 15:56:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:55,951 INFO L225 Difference]: With dead ends: 64534 [2021-10-08 15:56:55,951 INFO L226 Difference]: Without dead ends: 64534 [2021-10-08 15:56:55,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 76.3ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-08 15:56:56,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64534 states. [2021-10-08 15:56:57,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64534 to 37866. [2021-10-08 15:56:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37866 states, 37816 states have (on average 3.4412946900782737) internal successors, (130136), 37865 states have internal predecessors, (130136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:56:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37866 states to 37866 states and 130136 transitions. [2021-10-08 15:56:57,861 INFO L78 Accepts]: Start accepts. Automaton has 37866 states and 130136 transitions. Word has length 22 [2021-10-08 15:56:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:56:57,861 INFO L470 AbstractCegarLoop]: Abstraction has 37866 states and 130136 transitions. [2021-10-08 15:56:57,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-10-08 15:56:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 37866 states and 130136 transitions. [2021-10-08 15:56:57,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:56:57,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:56:57,886 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] [2021-10-08 15:56:57,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-10-08 15:56:57,887 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:56:57,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:56:57,887 INFO L82 PathProgramCache]: Analyzing trace with hash 2123522854, now seen corresponding path program 1 times [2021-10-08 15:56:57,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:56:57,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502773694] [2021-10-08 15:56:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:56:57,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:56:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:56:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:56:57,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:56:57,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502773694] [2021-10-08 15:56:57,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502773694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:56:57,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:56:57,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:56:57,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339883116] [2021-10-08 15:56:57,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 15:56:57,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:56:57,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 15:56:57,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-08 15:56:57,939 INFO L87 Difference]: Start difference. First operand 37866 states and 130136 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) 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) [2021-10-08 15:56:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:56:58,794 INFO L93 Difference]: Finished difference Result 44496 states and 152755 transitions. [2021-10-08 15:56:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-08 15:56:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) 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 [2021-10-08 15:56:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:56:58,948 INFO L225 Difference]: With dead ends: 44496 [2021-10-08 15:56:58,948 INFO L226 Difference]: Without dead ends: 44496 [2021-10-08 15:56:58,948 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2021-10-08 15:56:59,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44496 states. [2021-10-08 15:57:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44496 to 32408. [2021-10-08 15:57:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32408 states, 32361 states have (on average 3.431630666543061) internal successors, (111051), 32407 states have internal predecessors, (111051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32408 states to 32408 states and 111051 transitions. [2021-10-08 15:57:00,522 INFO L78 Accepts]: Start accepts. Automaton has 32408 states and 111051 transitions. Word has length 22 [2021-10-08 15:57:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:00,522 INFO L470 AbstractCegarLoop]: Abstraction has 32408 states and 111051 transitions. [2021-10-08 15:57:00,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) 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) [2021-10-08 15:57:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 32408 states and 111051 transitions. [2021-10-08 15:57:00,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:57:00,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:00,539 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] [2021-10-08 15:57:00,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-10-08 15:57:00,539 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:00,539 INFO L82 PathProgramCache]: Analyzing trace with hash 2123522798, now seen corresponding path program 1 times [2021-10-08 15:57:00,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:00,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517354588] [2021-10-08 15:57:00,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:00,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:00,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:00,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517354588] [2021-10-08 15:57:00,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517354588] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:00,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:00,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-08 15:57:00,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495191861] [2021-10-08 15:57:00,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 15:57:00,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 15:57:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:57:00,605 INFO L87 Difference]: Start difference. First operand 32408 states and 111051 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-08 15:57:03,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:03,168 INFO L93 Difference]: Finished difference Result 71172 states and 243668 transitions. [2021-10-08 15:57:03,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-08 15:57:03,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2021-10-08 15:57:03,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:03,540 INFO L225 Difference]: With dead ends: 71172 [2021-10-08 15:57:03,540 INFO L226 Difference]: Without dead ends: 71172 [2021-10-08 15:57:03,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1930 ImplicationChecksByTransitivity, 601.1ms TimeCoverageRelationStatistics Valid=898, Invalid=4214, Unknown=0, NotChecked=0, Total=5112 [2021-10-08 15:57:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71172 states. [2021-10-08 15:57:04,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71172 to 32568. [2021-10-08 15:57:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32568 states, 32521 states have (on average 3.4325512745610527) internal successors, (111630), 32567 states have internal predecessors, (111630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:05,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32568 states to 32568 states and 111630 transitions. [2021-10-08 15:57:05,058 INFO L78 Accepts]: Start accepts. Automaton has 32568 states and 111630 transitions. Word has length 22 [2021-10-08 15:57:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:05,059 INFO L470 AbstractCegarLoop]: Abstraction has 32568 states and 111630 transitions. [2021-10-08 15:57:05,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-08 15:57:05,059 INFO L276 IsEmpty]: Start isEmpty. Operand 32568 states and 111630 transitions. [2021-10-08 15:57:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:57:05,079 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:05,079 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] [2021-10-08 15:57:05,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-10-08 15:57:05,079 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:05,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1135300069, now seen corresponding path program 1 times [2021-10-08 15:57:05,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:05,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545416597] [2021-10-08 15:57:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:05,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:05,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:05,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545416597] [2021-10-08 15:57:05,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545416597] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:05,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:05,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:57:05,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432662235] [2021-10-08 15:57:05,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:57:05,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:05,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:57:05,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:57:05,516 INFO L87 Difference]: Start difference. First operand 32568 states and 111630 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) [2021-10-08 15:57:07,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:07,333 INFO L93 Difference]: Finished difference Result 71150 states and 243566 transitions. [2021-10-08 15:57:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-08 15:57:07,334 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 [2021-10-08 15:57:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:08,104 INFO L225 Difference]: With dead ends: 71150 [2021-10-08 15:57:08,104 INFO L226 Difference]: Without dead ends: 71150 [2021-10-08 15:57:08,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 460.6ms TimeCoverageRelationStatistics Valid=625, Invalid=2915, Unknown=0, NotChecked=0, Total=3540 [2021-10-08 15:57:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71150 states. [2021-10-08 15:57:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71150 to 31938. [2021-10-08 15:57:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31938 states, 31891 states have (on average 3.4302467780878616) internal successors, (109394), 31937 states have internal predecessors, (109394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31938 states to 31938 states and 109394 transitions. [2021-10-08 15:57:09,523 INFO L78 Accepts]: Start accepts. Automaton has 31938 states and 109394 transitions. Word has length 22 [2021-10-08 15:57:09,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:09,523 INFO L470 AbstractCegarLoop]: Abstraction has 31938 states and 109394 transitions. [2021-10-08 15:57:09,524 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) [2021-10-08 15:57:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 31938 states and 109394 transitions. [2021-10-08 15:57:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:57:09,543 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:09,543 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] [2021-10-08 15:57:09,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-10-08 15:57:09,543 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:09,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash -2079981185, now seen corresponding path program 1 times [2021-10-08 15:57:09,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:09,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547340715] [2021-10-08 15:57:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:09,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:09,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:09,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547340715] [2021-10-08 15:57:09,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547340715] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:09,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:09,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-08 15:57:09,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561672200] [2021-10-08 15:57:09,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 15:57:09,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:09,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 15:57:09,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-08 15:57:09,605 INFO L87 Difference]: Start difference. First operand 31938 states and 109394 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) [2021-10-08 15:57:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:11,440 INFO L93 Difference]: Finished difference Result 65316 states and 223279 transitions. [2021-10-08 15:57:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-08 15:57:11,441 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 [2021-10-08 15:57:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:11,777 INFO L225 Difference]: With dead ends: 65316 [2021-10-08 15:57:11,777 INFO L226 Difference]: Without dead ends: 65316 [2021-10-08 15:57:11,778 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 245.2ms TimeCoverageRelationStatistics Valid=386, Invalid=1420, Unknown=0, NotChecked=0, Total=1806 [2021-10-08 15:57:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65316 states. [2021-10-08 15:57:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65316 to 31476. [2021-10-08 15:57:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31476 states, 31429 states have (on average 3.4253396544592576) internal successors, (107655), 31475 states have internal predecessors, (107655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31476 states to 31476 states and 107655 transitions. [2021-10-08 15:57:13,676 INFO L78 Accepts]: Start accepts. Automaton has 31476 states and 107655 transitions. Word has length 22 [2021-10-08 15:57:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:13,676 INFO L470 AbstractCegarLoop]: Abstraction has 31476 states and 107655 transitions. [2021-10-08 15:57:13,676 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) [2021-10-08 15:57:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 31476 states and 107655 transitions. [2021-10-08 15:57:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-08 15:57:13,723 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:13,723 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] [2021-10-08 15:57:13,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-10-08 15:57:13,723 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:13,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:13,724 INFO L82 PathProgramCache]: Analyzing trace with hash 262272322, now seen corresponding path program 2 times [2021-10-08 15:57:13,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:13,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952482169] [2021-10-08 15:57:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:13,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:13,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:13,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952482169] [2021-10-08 15:57:13,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952482169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:13,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:13,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-08 15:57:13,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87638013] [2021-10-08 15:57:13,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 15:57:13,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:13,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 15:57:13,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:57:13,797 INFO L87 Difference]: Start difference. First operand 31476 states and 107655 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-08 15:57:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:16,462 INFO L93 Difference]: Finished difference Result 77006 states and 262562 transitions. [2021-10-08 15:57:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-08 15:57:16,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2021-10-08 15:57:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:16,840 INFO L225 Difference]: With dead ends: 77006 [2021-10-08 15:57:16,840 INFO L226 Difference]: Without dead ends: 77006 [2021-10-08 15:57:16,841 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2596 ImplicationChecksByTransitivity, 686.4ms TimeCoverageRelationStatistics Valid=1130, Invalid=5512, Unknown=0, NotChecked=0, Total=6642 [2021-10-08 15:57:16,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77006 states. [2021-10-08 15:57:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77006 to 31760. [2021-10-08 15:57:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31760 states, 31713 states have (on average 3.4238009649039824) internal successors, (108579), 31759 states have internal predecessors, (108579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31760 states to 31760 states and 108579 transitions. [2021-10-08 15:57:18,354 INFO L78 Accepts]: Start accepts. Automaton has 31760 states and 108579 transitions. Word has length 22 [2021-10-08 15:57:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:18,354 INFO L470 AbstractCegarLoop]: Abstraction has 31760 states and 108579 transitions. [2021-10-08 15:57:18,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-10-08 15:57:18,354 INFO L276 IsEmpty]: Start isEmpty. Operand 31760 states and 108579 transitions. [2021-10-08 15:57:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:57:18,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:18,744 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, 1] [2021-10-08 15:57:18,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-10-08 15:57:18,746 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:18,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:18,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1483643473, now seen corresponding path program 1 times [2021-10-08 15:57:18,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:18,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819644656] [2021-10-08 15:57:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:18,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:18,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:18,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819644656] [2021-10-08 15:57:18,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819644656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:18,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:18,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-08 15:57:18,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017258141] [2021-10-08 15:57:18,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-08 15:57:18,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:18,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-08 15:57:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-08 15:57:18,890 INFO L87 Difference]: Start difference. First operand 31760 states and 108579 transitions. Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:22,141 INFO L93 Difference]: Finished difference Result 117952 states and 403738 transitions. [2021-10-08 15:57:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-10-08 15:57:22,142 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:57:22,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:22,764 INFO L225 Difference]: With dead ends: 117952 [2021-10-08 15:57:22,764 INFO L226 Difference]: Without dead ends: 117952 [2021-10-08 15:57:22,765 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3597 ImplicationChecksByTransitivity, 836.1ms TimeCoverageRelationStatistics Valid=1626, Invalid=6746, Unknown=0, NotChecked=0, Total=8372 [2021-10-08 15:57:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117952 states. [2021-10-08 15:57:24,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117952 to 31752. [2021-10-08 15:57:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31752 states, 31705 states have (on average 3.4237186563633495) internal successors, (108549), 31751 states have internal predecessors, (108549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31752 states to 31752 states and 108549 transitions. [2021-10-08 15:57:25,096 INFO L78 Accepts]: Start accepts. Automaton has 31752 states and 108549 transitions. Word has length 23 [2021-10-08 15:57:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:25,096 INFO L470 AbstractCegarLoop]: Abstraction has 31752 states and 108549 transitions. [2021-10-08 15:57:25,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 31752 states and 108549 transitions. [2021-10-08 15:57:25,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:57:25,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:25,115 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, 1] [2021-10-08 15:57:25,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-10-08 15:57:25,116 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:25,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1497275243, now seen corresponding path program 1 times [2021-10-08 15:57:25,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:25,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488628211] [2021-10-08 15:57:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:25,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:25,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:25,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488628211] [2021-10-08 15:57:25,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488628211] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:25,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:25,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-08 15:57:25,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784690565] [2021-10-08 15:57:25,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:57:25,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:25,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:57:25,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:57:25,139 INFO L87 Difference]: Start difference. First operand 31752 states and 108549 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:25,889 INFO L93 Difference]: Finished difference Result 32028 states and 107815 transitions. [2021-10-08 15:57:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 15:57:25,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:57:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:26,018 INFO L225 Difference]: With dead ends: 32028 [2021-10-08 15:57:26,018 INFO L226 Difference]: Without dead ends: 32028 [2021-10-08 15:57:26,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:57:26,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32028 states. [2021-10-08 15:57:26,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32028 to 25652. [2021-10-08 15:57:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25652 states, 25610 states have (on average 3.386372510737993) internal successors, (86725), 25651 states have internal predecessors, (86725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25652 states to 25652 states and 86725 transitions. [2021-10-08 15:57:27,149 INFO L78 Accepts]: Start accepts. Automaton has 25652 states and 86725 transitions. Word has length 23 [2021-10-08 15:57:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:27,149 INFO L470 AbstractCegarLoop]: Abstraction has 25652 states and 86725 transitions. [2021-10-08 15:57:27,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 25652 states and 86725 transitions. [2021-10-08 15:57:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:57:27,167 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:27,168 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, 1] [2021-10-08 15:57:27,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-10-08 15:57:27,168 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:27,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1857834361, now seen corresponding path program 1 times [2021-10-08 15:57:27,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:27,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506520479] [2021-10-08 15:57:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:27,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:27,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:27,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506520479] [2021-10-08 15:57:27,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506520479] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:27,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:27,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:57:27,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580962395] [2021-10-08 15:57:27,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:57:27,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:27,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:57:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:57:27,231 INFO L87 Difference]: Start difference. First operand 25652 states and 86725 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:28,513 INFO L93 Difference]: Finished difference Result 41400 states and 138805 transitions. [2021-10-08 15:57:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-08 15:57:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:57:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:28,670 INFO L225 Difference]: With dead ends: 41400 [2021-10-08 15:57:28,670 INFO L226 Difference]: Without dead ends: 41400 [2021-10-08 15:57:28,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 318.5ms TimeCoverageRelationStatistics Valid=307, Invalid=1253, Unknown=0, NotChecked=0, Total=1560 [2021-10-08 15:57:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41400 states. [2021-10-08 15:57:29,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41400 to 25940. [2021-10-08 15:57:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25940 states, 25898 states have (on average 3.390802378562051) internal successors, (87815), 25939 states have internal predecessors, (87815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25940 states to 25940 states and 87815 transitions. [2021-10-08 15:57:30,257 INFO L78 Accepts]: Start accepts. Automaton has 25940 states and 87815 transitions. Word has length 23 [2021-10-08 15:57:30,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:30,257 INFO L470 AbstractCegarLoop]: Abstraction has 25940 states and 87815 transitions. [2021-10-08 15:57:30,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:30,258 INFO L276 IsEmpty]: Start isEmpty. Operand 25940 states and 87815 transitions. [2021-10-08 15:57:30,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:57:30,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:30,279 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, 1] [2021-10-08 15:57:30,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-10-08 15:57:30,279 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:30,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:30,280 INFO L82 PathProgramCache]: Analyzing trace with hash 484876562, now seen corresponding path program 1 times [2021-10-08 15:57:30,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:30,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304305361] [2021-10-08 15:57:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:30,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:30,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:30,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304305361] [2021-10-08 15:57:30,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304305361] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:30,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:30,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:57:30,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895608287] [2021-10-08 15:57:30,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:57:30,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:57:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:57:30,358 INFO L87 Difference]: Start difference. First operand 25940 states and 87815 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:31,963 INFO L93 Difference]: Finished difference Result 66732 states and 226669 transitions. [2021-10-08 15:57:31,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-08 15:57:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:57:31,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:32,687 INFO L225 Difference]: With dead ends: 66732 [2021-10-08 15:57:32,688 INFO L226 Difference]: Without dead ends: 66732 [2021-10-08 15:57:32,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 392.2ms TimeCoverageRelationStatistics Valid=658, Invalid=2648, Unknown=0, NotChecked=0, Total=3306 [2021-10-08 15:57:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66732 states. [2021-10-08 15:57:33,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66732 to 25360. [2021-10-08 15:57:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25360 states, 25318 states have (on average 3.3869578955683703) internal successors, (85751), 25359 states have internal predecessors, (85751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25360 states to 25360 states and 85751 transitions. [2021-10-08 15:57:33,979 INFO L78 Accepts]: Start accepts. Automaton has 25360 states and 85751 transitions. Word has length 23 [2021-10-08 15:57:33,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:33,979 INFO L470 AbstractCegarLoop]: Abstraction has 25360 states and 85751 transitions. [2021-10-08 15:57:33,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 25360 states and 85751 transitions. [2021-10-08 15:57:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:57:33,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:33,998 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, 1] [2021-10-08 15:57:33,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-10-08 15:57:33,998 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:33,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:33,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1411593545, now seen corresponding path program 1 times [2021-10-08 15:57:33,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:33,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065330827] [2021-10-08 15:57:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:33,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:34,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:34,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065330827] [2021-10-08 15:57:34,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065330827] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:34,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:34,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-08 15:57:34,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642152612] [2021-10-08 15:57:34,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 15:57:34,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:34,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 15:57:34,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-10-08 15:57:34,084 INFO L87 Difference]: Start difference. First operand 25360 states and 85751 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:37,063 INFO L93 Difference]: Finished difference Result 70326 states and 238477 transitions. [2021-10-08 15:57:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-10-08 15:57:37,063 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:57:37,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:37,409 INFO L225 Difference]: With dead ends: 70326 [2021-10-08 15:57:37,409 INFO L226 Difference]: Without dead ends: 70326 [2021-10-08 15:57:37,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3299 ImplicationChecksByTransitivity, 831.1ms TimeCoverageRelationStatistics Valid=1427, Invalid=6763, Unknown=0, NotChecked=0, Total=8190 [2021-10-08 15:57:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70326 states. [2021-10-08 15:57:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70326 to 25472. [2021-10-08 15:57:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25472 states, 25430 states have (on average 3.3877310263468345) internal successors, (86150), 25471 states have internal predecessors, (86150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25472 states to 25472 states and 86150 transitions. [2021-10-08 15:57:39,287 INFO L78 Accepts]: Start accepts. Automaton has 25472 states and 86150 transitions. Word has length 23 [2021-10-08 15:57:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:57:39,287 INFO L470 AbstractCegarLoop]: Abstraction has 25472 states and 86150 transitions. [2021-10-08 15:57:39,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 25472 states and 86150 transitions. [2021-10-08 15:57:39,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-08 15:57:39,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:57:39,313 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, 1] [2021-10-08 15:57:39,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-10-08 15:57:39,313 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-08 15:57:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:57:39,313 INFO L82 PathProgramCache]: Analyzing trace with hash 172991087, now seen corresponding path program 1 times [2021-10-08 15:57:39,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:57:39,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300158439] [2021-10-08 15:57:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:57:39,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:57:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:57:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:57:39,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:57:39,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300158439] [2021-10-08 15:57:39,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300158439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:57:39,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:57:39,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-08 15:57:39,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38372512] [2021-10-08 15:57:39,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 15:57:39,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:57:39,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 15:57:39,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-08 15:57:39,385 INFO L87 Difference]: Start difference. First operand 25472 states and 86150 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:57:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:57:41,091 INFO L93 Difference]: Finished difference Result 58542 states and 198481 transitions. [2021-10-08 15:57:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-08 15:57:41,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-08 15:57:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:57:41,702 INFO L225 Difference]: With dead ends: 58542 [2021-10-08 15:57:41,702 INFO L226 Difference]: Without dead ends: 58542 Received shutdown request... [2021-10-08 15:57:41,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1138 ImplicationChecksByTransitivity, 423.7ms TimeCoverageRelationStatistics Valid=591, Invalid=2715, Unknown=0, NotChecked=0, Total=3306 [2021-10-08 15:57:41,744 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 [2021-10-08 15:57:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58542 states. [2021-10-08 15:57:41,831 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-10-08 15:57:41,832 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2021-10-08 15:57:41,833 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,834 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 15:57:41,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 15:57:41,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 15:57:41,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,839 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,839 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:57:41,846 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 15:57:41,847 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 15:57:41,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 03:57:41 BasicIcfg [2021-10-08 15:57:41,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 15:57:41,849 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-08 15:57:41,851 INFO L168 Benchmark]: Toolchain (without parser) took 543223.33 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 124.9 MB in the beginning and 4.7 GB in the end (delta: -4.5 GB). Peak memory consumption was 3.6 GB. Max. memory is 8.0 GB. [2021-10-08 15:57:41,851 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 15:57:41,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 113.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 15:57:41,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.06 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 111.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:57:41,852 INFO L168 Benchmark]: Boogie Preprocessor took 35.82 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 109.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:57:41,853 INFO L168 Benchmark]: RCFGBuilder took 751.04 ms. Allocated memory is still 151.0 MB. Free memory was 109.5 MB in the beginning and 91.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-10-08 15:57:41,853 INFO L168 Benchmark]: TraceAbstraction took 541944.23 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 91.3 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 3.6 GB. Max. memory is 8.0 GB. [2021-10-08 15:57:41,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 396.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 113.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 75.06 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 111.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.82 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 109.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 751.04 ms. Allocated memory is still 151.0 MB. Free memory was 109.5 MB in the beginning and 91.7 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 541944.23 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 91.3 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 3.6 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7607.8ms, 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: 312, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 245, negative conditional: 0, negative unconditional: 245, 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: 64]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 541654.1ms, OverallIterations: 90, TraceHistogramMax: 1, EmptinessCheckTime: 1700.2ms, AutomataDifference: 256529.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8682.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 17824 SDtfs, 56622 SDslu, 64880 SDs, 0 SdLazy, 49234 SolverSat, 8248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31969.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2288 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 2085 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31894 ImplicationChecksByTransitivity, 16349.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=85514occurred in iteration=32, InterpolantAutomatonStates: 2132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 267396.4ms AutomataMinimizationTime, 90 MinimizatonAttempts, 3844884 StatesRemovedByMinimization, 89 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 156.3ms SsaConstructionTime, 1056.5ms SatisfiabilityAnalysisTime, 4754.7ms InterpolantComputationTime, 1499 NumberOfCodeBlocks, 1499 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1409 ConstructedInterpolants, 0 QuantifiedInterpolants, 3763 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 90 InterpolantComputations, 90 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