/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/popl20-more-min-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 16:12:40,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 16:12:40,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 16:12:40,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 16:12:40,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 16:12:40,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 16:12:40,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 16:12:40,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 16:12:40,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 16:12:40,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 16:12:40,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 16:12:40,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 16:12:40,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 16:12:40,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 16:12:40,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 16:12:40,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 16:12:40,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-08 16:12:40,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 16:12:40,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 16:12:40,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 16:12:40,549 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 16:12:40,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 16:12:40,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 16:12:40,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 16:12:40,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 16:12:40,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 16:12:40,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 16:12:40,603 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 16:12:40,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 16:12:40,604 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 16:12:40,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 16:12:40,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 16:12:40,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 16:12:40,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 16:12:40,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 16:12:40,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 16:12:40,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 16:12:40,606 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 16:12:40,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 16:12:40,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 16:12:40,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 16:12:40,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 16:12:40,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 16:12:40,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 16:12:40,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 16:12:40,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:12:40,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 16:12:40,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 16:12:40,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 16:12:40,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 16:12:40,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 16:12:40,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 16:12:40,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 16:12:40,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 16:12:40,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 16:12:41,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 16:12:41,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 16:12:41,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 16:12:41,013 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 16:12:41,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-10-08 16:12:41,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7dc78a8a/28f8a7fe73fd4884a93758ebe6f0c59c/FLAGa5a08445d [2021-10-08 16:12:41,856 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 16:12:41,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-10-08 16:12:41,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7dc78a8a/28f8a7fe73fd4884a93758ebe6f0c59c/FLAGa5a08445d [2021-10-08 16:12:42,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7dc78a8a/28f8a7fe73fd4884a93758ebe6f0c59c [2021-10-08 16:12:42,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 16:12:42,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 16:12:42,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 16:12:42,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 16:12:42,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 16:12:42,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9925be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42, skipping insertion in model container [2021-10-08 16:12:42,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 16:12:42,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 16:12:42,504 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/popl20-more-min-array-hom.wvr.c[2574,2587] [2021-10-08 16:12:42,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:12:42,521 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 16:12:42,547 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/popl20-more-min-array-hom.wvr.c[2574,2587] [2021-10-08 16:12:42,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 16:12:42,568 INFO L208 MainTranslator]: Completed translation [2021-10-08 16:12:42,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42 WrapperNode [2021-10-08 16:12:42,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 16:12:42,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 16:12:42,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 16:12:42,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 16:12:42,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 16:12:42,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 16:12:42,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 16:12:42,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 16:12:42,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 16:12:42,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 16:12:42,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 16:12:42,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 16:12:42,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (1/1) ... [2021-10-08 16:12:42,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 16:12:42,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:42,765 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 16:12:42,778 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 16:12:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 16:12:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 16:12:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 16:12:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 16:12:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 16:12:42,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 16:12:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 16:12:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 16:12:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 16:12:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 16:12:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 16:12:42,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 16:12:42,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 16:12:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 16:12:42,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 16:12:42,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 16:12:42,829 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 16:12:43,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 16:12:43,453 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-08 16:12:43,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:12:43 BoogieIcfgContainer [2021-10-08 16:12:43,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 16:12:43,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 16:12:43,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 16:12:43,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 16:12:43,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 04:12:42" (1/3) ... [2021-10-08 16:12:43,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77122b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:12:43, skipping insertion in model container [2021-10-08 16:12:43,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:12:42" (2/3) ... [2021-10-08 16:12:43,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77122b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:12:43, skipping insertion in model container [2021-10-08 16:12:43,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:12:43" (3/3) ... [2021-10-08 16:12:43,467 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2021-10-08 16:12:43,473 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 16:12:43,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 16:12:43,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-08 16:12:43,474 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 16:12:43,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,520 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,522 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,522 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,522 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,524 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,525 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,526 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,526 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,529 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,530 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,531 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,531 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,532 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,532 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,532 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,532 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,532 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,533 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,533 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,533 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,533 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,533 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,534 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,534 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,534 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,538 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,538 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,538 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,538 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,538 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,539 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,539 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,540 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,540 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,540 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,540 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,541 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,541 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,541 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,541 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,542 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,542 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,542 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,542 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,542 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,543 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,543 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,544 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,544 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,544 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,544 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,545 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,545 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,545 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,545 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,546 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,546 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,546 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,546 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,547 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,547 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,547 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,547 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,547 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,547 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,552 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,553 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,553 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,555 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,556 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,559 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,560 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,560 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,560 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,560 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,560 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 16:12:43,569 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 16:12:43,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 16:12:43,635 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 16:12:43,635 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-08 16:12:43,654 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 16:12:43,666 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 160 transitions, 344 flow [2021-10-08 16:12:43,669 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 160 transitions, 344 flow [2021-10-08 16:12:43,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 160 transitions, 344 flow [2021-10-08 16:12:43,793 INFO L129 PetriNetUnfolder]: 13/157 cut-off events. [2021-10-08 16:12:43,794 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 16:12:43,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 13/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2021-10-08 16:12:43,808 INFO L116 LiptonReduction]: Number of co-enabled transitions 2184 [2021-10-08 16:12:51,438 INFO L131 LiptonReduction]: Checked pairs total: 2785 [2021-10-08 16:12:51,439 INFO L133 LiptonReduction]: Total number of compositions: 165 [2021-10-08 16:12:51,449 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 35 transitions, 94 flow [2021-10-08 16:12:51,489 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 16:12:51,499 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:51,500 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 16:12:51,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:51,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:51,507 INFO L82 PathProgramCache]: Analyzing trace with hash 21473, now seen corresponding path program 1 times [2021-10-08 16:12:51,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:51,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144555568] [2021-10-08 16:12:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:51,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:51,726 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 16:12:51,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:51,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144555568] [2021-10-08 16:12:51,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144555568] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:51,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:51,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 16:12:51,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016662037] [2021-10-08 16:12:51,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:51,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:51,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:51,757 INFO L87 Difference]: Start difference. First operand has 369 states, 341 states have (on average 3.530791788856305) internal successors, (1204), 368 states have internal predecessors, (1204), 0 states have call successors, (0), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:51,842 INFO L93 Difference]: Finished difference Result 735 states and 2405 transitions. [2021-10-08 16:12:51,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-08 16:12:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:51,870 INFO L225 Difference]: With dead ends: 735 [2021-10-08 16:12:51,871 INFO L226 Difference]: Without dead ends: 735 [2021-10-08 16:12:51,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:51,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-08 16:12:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 370. [2021-10-08 16:12:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 3.526315789473684) internal successors, (1206), 369 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1206 transitions. [2021-10-08 16:12:51,961 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1206 transitions. Word has length 2 [2021-10-08 16:12:51,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:51,964 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1206 transitions. [2021-10-08 16:12:51,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1206 transitions. [2021-10-08 16:12:51,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:12:51,965 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:51,965 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:12:51,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 16:12:51,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:51,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:51,967 INFO L82 PathProgramCache]: Analyzing trace with hash 666769, now seen corresponding path program 1 times [2021-10-08 16:12:51,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:51,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504392864] [2021-10-08 16:12:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:51,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:52,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504392864] [2021-10-08 16:12:52,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504392864] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:52,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610017195] [2021-10-08 16:12:52,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:52,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:52,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:52,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-08 16:12:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:52,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610017195] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:52,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:52,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-08 16:12:52,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698192082] [2021-10-08 16:12:52,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:52,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:52,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:52,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:52,262 INFO L87 Difference]: Start difference. First operand 370 states and 1206 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:52,340 INFO L93 Difference]: Finished difference Result 1101 states and 3607 transitions. [2021-10-08 16:12:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:12:52,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 16:12:52,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:52,355 INFO L225 Difference]: With dead ends: 1101 [2021-10-08 16:12:52,355 INFO L226 Difference]: Without dead ends: 1101 [2021-10-08 16:12:52,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:52,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2021-10-08 16:12:52,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 371. [2021-10-08 16:12:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 343 states have (on average 3.5247813411078717) internal successors, (1209), 370 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 1209 transitions. [2021-10-08 16:12:52,394 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 1209 transitions. Word has length 3 [2021-10-08 16:12:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:52,395 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 1209 transitions. [2021-10-08 16:12:52,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 1209 transitions. [2021-10-08 16:12:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 16:12:52,396 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:52,396 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 16:12:52,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:52,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:52,610 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:52,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:52,612 INFO L82 PathProgramCache]: Analyzing trace with hash 666770, now seen corresponding path program 1 times [2021-10-08 16:12:52,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:52,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933094662] [2021-10-08 16:12:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:52,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933094662] [2021-10-08 16:12:52,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933094662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:52,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:52,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:52,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321229947] [2021-10-08 16:12:52,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:52,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:52,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:52,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:52,708 INFO L87 Difference]: Start difference. First operand 371 states and 1209 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:52,730 INFO L93 Difference]: Finished difference Result 370 states and 1207 transitions. [2021-10-08 16:12:52,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:52,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 16:12:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:52,736 INFO L225 Difference]: With dead ends: 370 [2021-10-08 16:12:52,736 INFO L226 Difference]: Without dead ends: 370 [2021-10-08 16:12:52,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-08 16:12:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-10-08 16:12:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 343 states have (on average 3.5189504373177845) internal successors, (1207), 369 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1207 transitions. [2021-10-08 16:12:52,814 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1207 transitions. Word has length 3 [2021-10-08 16:12:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:52,814 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 1207 transitions. [2021-10-08 16:12:52,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1207 transitions. [2021-10-08 16:12:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 16:12:52,815 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:52,815 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-08 16:12:52,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-08 16:12:52,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:52,817 INFO L82 PathProgramCache]: Analyzing trace with hash 20670945, now seen corresponding path program 2 times [2021-10-08 16:12:52,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:52,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144526617] [2021-10-08 16:12:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:52,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:52,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:52,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144526617] [2021-10-08 16:12:52,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144526617] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:52,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160395730] [2021-10-08 16:12:52,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:12:52,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:52,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:52,933 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:52,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-08 16:12:52,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:12:52,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:52,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:12:52,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:12:53,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160395730] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:53,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:53,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-08 16:12:53,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896895142] [2021-10-08 16:12:53,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:53,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:53,022 INFO L87 Difference]: Start difference. First operand 370 states and 1207 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:53,033 INFO L93 Difference]: Finished difference Result 369 states and 1206 transitions. [2021-10-08 16:12:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:53,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-08 16:12:53,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:53,038 INFO L225 Difference]: With dead ends: 369 [2021-10-08 16:12:53,038 INFO L226 Difference]: Without dead ends: 369 [2021-10-08 16:12:53,039 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-10-08 16:12:53,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 367. [2021-10-08 16:12:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 341 states have (on average 3.5249266862170088) internal successors, (1202), 366 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 1202 transitions. [2021-10-08 16:12:53,057 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 1202 transitions. Word has length 4 [2021-10-08 16:12:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:53,058 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 1202 transitions. [2021-10-08 16:12:53,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 1202 transitions. [2021-10-08 16:12:53,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 16:12:53,059 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:53,059 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 16:12:53,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:53,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,273 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:53,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:53,274 INFO L82 PathProgramCache]: Analyzing trace with hash 641031601, now seen corresponding path program 1 times [2021-10-08 16:12:53,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:53,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521465019] [2021-10-08 16:12:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,351 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 16:12:53,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:53,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521465019] [2021-10-08 16:12:53,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521465019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:53,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:53,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:53,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413715888] [2021-10-08 16:12:53,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:53,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:53,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:53,356 INFO L87 Difference]: Start difference. First operand 367 states and 1202 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:53,386 INFO L93 Difference]: Finished difference Result 545 states and 1773 transitions. [2021-10-08 16:12:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:53,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-08 16:12:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:53,392 INFO L225 Difference]: With dead ends: 545 [2021-10-08 16:12:53,393 INFO L226 Difference]: Without dead ends: 545 [2021-10-08 16:12:53,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:53,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-10-08 16:12:53,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 429. [2021-10-08 16:12:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 3.6501240694789083) internal successors, (1471), 428 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1471 transitions. [2021-10-08 16:12:53,419 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1471 transitions. Word has length 5 [2021-10-08 16:12:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:53,419 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 1471 transitions. [2021-10-08 16:12:53,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,420 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1471 transitions. [2021-10-08 16:12:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 16:12:53,421 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:53,421 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 16:12:53,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 16:12:53,422 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1602855989, now seen corresponding path program 1 times [2021-10-08 16:12:53,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:53,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508153590] [2021-10-08 16:12:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:53,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:53,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508153590] [2021-10-08 16:12:53,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508153590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:53,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280264395] [2021-10-08 16:12:53,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:53,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:53,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-08 16:12:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-08 16:12:53,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:53,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280264395] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:53,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:53,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2021-10-08 16:12:53,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877869184] [2021-10-08 16:12:53,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:53,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:53,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:53,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:12:53,630 INFO L87 Difference]: Start difference. First operand 429 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 1.2) 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 16:12:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:53,666 INFO L93 Difference]: Finished difference Result 430 states and 1472 transitions. [2021-10-08 16:12:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) 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 16:12:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:53,671 INFO L225 Difference]: With dead ends: 430 [2021-10-08 16:12:53,672 INFO L226 Difference]: Without dead ends: 430 [2021-10-08 16:12:53,672 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-08 16:12:53,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-10-08 16:12:53,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-10-08 16:12:53,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 404 states have (on average 3.6435643564356437) internal successors, (1472), 429 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:53,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1472 transitions. [2021-10-08 16:12:53,693 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1472 transitions. Word has length 6 [2021-10-08 16:12:53,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:53,693 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 1472 transitions. [2021-10-08 16:12:53,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) 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 16:12:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1472 transitions. [2021-10-08 16:12:53,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:12:53,694 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:53,695 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:53,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:53,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,909 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:53,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1636064379, now seen corresponding path program 1 times [2021-10-08 16:12:53,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:53,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257216278] [2021-10-08 16:12:53,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:53,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:53,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257216278] [2021-10-08 16:12:53,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257216278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:53,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786028383] [2021-10-08 16:12:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:53,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:53,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:53,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-08 16:12:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:54,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:54,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:54,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786028383] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:54,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:54,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:12:54,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94900625] [2021-10-08 16:12:54,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:54,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:54,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:54,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:54,061 INFO L87 Difference]: Start difference. First operand 430 states and 1472 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:54,090 INFO L93 Difference]: Finished difference Result 724 states and 2407 transitions. [2021-10-08 16:12:54,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 16:12:54,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-08 16:12:54,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:54,099 INFO L225 Difference]: With dead ends: 724 [2021-10-08 16:12:54,099 INFO L226 Difference]: Without dead ends: 724 [2021-10-08 16:12:54,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-10-08 16:12:54,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 492. [2021-10-08 16:12:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 466 states have (on average 3.869098712446352) internal successors, (1803), 491 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 1803 transitions. [2021-10-08 16:12:54,129 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 1803 transitions. Word has length 7 [2021-10-08 16:12:54,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:54,130 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 1803 transitions. [2021-10-08 16:12:54,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 1803 transitions. [2021-10-08 16:12:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 16:12:54,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:54,132 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:54,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:54,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,348 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:54,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1636064380, now seen corresponding path program 1 times [2021-10-08 16:12:54,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:54,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632892107] [2021-10-08 16:12:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:54,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:54,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632892107] [2021-10-08 16:12:54,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632892107] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:54,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528714337] [2021-10-08 16:12:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:54,388 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:54,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-08 16:12:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:54,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 16:12:54,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 16:12:54,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528714337] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:54,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:54,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2021-10-08 16:12:54,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801331915] [2021-10-08 16:12:54,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 16:12:54,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:54,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 16:12:54,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-08 16:12:54,536 INFO L87 Difference]: Start difference. First operand 492 states and 1803 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:54,708 INFO L93 Difference]: Finished difference Result 892 states and 2871 transitions. [2021-10-08 16:12:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 16:12:54,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-08 16:12:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:54,718 INFO L225 Difference]: With dead ends: 892 [2021-10-08 16:12:54,718 INFO L226 Difference]: Without dead ends: 886 [2021-10-08 16:12:54,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 76.7ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-08 16:12:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-08 16:12:54,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 638. [2021-10-08 16:12:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 621 states have (on average 3.6457326892109503) internal successors, (2264), 637 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 2264 transitions. [2021-10-08 16:12:54,780 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 2264 transitions. Word has length 7 [2021-10-08 16:12:54,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:54,780 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 2264 transitions. [2021-10-08 16:12:54,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:54,781 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 2264 transitions. [2021-10-08 16:12:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-08 16:12:54,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:54,783 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:54,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:54,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:54,985 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:54,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:54,986 INFO L82 PathProgramCache]: Analyzing trace with hash -816098443, now seen corresponding path program 1 times [2021-10-08 16:12:54,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:54,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932105593] [2021-10-08 16:12:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:54,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:55,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:55,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932105593] [2021-10-08 16:12:55,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932105593] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:55,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:55,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:55,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531621523] [2021-10-08 16:12:55,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:55,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 16:12:55,027 INFO L87 Difference]: Start difference. First operand 638 states and 2264 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 16:12:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:55,060 INFO L93 Difference]: Finished difference Result 884 states and 3138 transitions. [2021-10-08 16:12:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:55,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 16:12:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:55,071 INFO L225 Difference]: With dead ends: 884 [2021-10-08 16:12:55,071 INFO L226 Difference]: Without dead ends: 884 [2021-10-08 16:12:55,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:12:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2021-10-08 16:12:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 760. [2021-10-08 16:12:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 743 states have (on average 3.798115746971736) internal successors, (2822), 759 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 2822 transitions. [2021-10-08 16:12:55,117 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 2822 transitions. Word has length 8 [2021-10-08 16:12:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:55,118 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 2822 transitions. [2021-10-08 16:12:55,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 16:12:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 2822 transitions. [2021-10-08 16:12:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:12:55,121 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:55,121 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-08 16:12:55,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-08 16:12:55,122 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:55,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:55,122 INFO L82 PathProgramCache]: Analyzing trace with hash -2070426895, now seen corresponding path program 2 times [2021-10-08 16:12:55,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:55,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294522406] [2021-10-08 16:12:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-08 16:12:55,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:55,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294522406] [2021-10-08 16:12:55,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294522406] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:55,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142556422] [2021-10-08 16:12:55,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:12:55,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:55,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:55,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:55,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-08 16:12:55,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:12:55,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:55,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:55,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-08 16:12:55,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142556422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:55,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:55,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-08 16:12:55,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279777535] [2021-10-08 16:12:55,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:55,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:55,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:55,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:55,293 INFO L87 Difference]: Start difference. First operand 760 states and 2822 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:55,314 INFO L93 Difference]: Finished difference Result 612 states and 2274 transitions. [2021-10-08 16:12:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-08 16:12:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:55,322 INFO L225 Difference]: With dead ends: 612 [2021-10-08 16:12:55,323 INFO L226 Difference]: Without dead ends: 604 [2021-10-08 16:12:55,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-08 16:12:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 418. [2021-10-08 16:12:55,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 3.5786924939467313) internal successors, (1478), 417 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1478 transitions. [2021-10-08 16:12:55,349 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1478 transitions. Word has length 9 [2021-10-08 16:12:55,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:55,350 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 1478 transitions. [2021-10-08 16:12:55,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1478 transitions. [2021-10-08 16:12:55,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:12:55,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:55,351 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:55,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:55,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-08 16:12:55,566 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:55,567 INFO L82 PathProgramCache]: Analyzing trace with hash 470752611, now seen corresponding path program 1 times [2021-10-08 16:12:55,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:55,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447397835] [2021-10-08 16:12:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:55,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:55,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447397835] [2021-10-08 16:12:55,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447397835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:55,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722245065] [2021-10-08 16:12:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:55,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:55,605 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:55,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-08 16:12:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:55,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:55,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:55,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722245065] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:55,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:55,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-08 16:12:55,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50878092] [2021-10-08 16:12:55,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:12:55,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:12:55,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:55,726 INFO L87 Difference]: Start difference. First operand 418 states and 1478 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:55,742 INFO L93 Difference]: Finished difference Result 410 states and 1386 transitions. [2021-10-08 16:12:55,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:55,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-08 16:12:55,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:55,747 INFO L225 Difference]: With dead ends: 410 [2021-10-08 16:12:55,748 INFO L226 Difference]: Without dead ends: 410 [2021-10-08 16:12:55,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 16:12:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-08 16:12:55,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 350. [2021-10-08 16:12:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 3.5734870317002883) internal successors, (1240), 349 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 1240 transitions. [2021-10-08 16:12:55,766 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 1240 transitions. Word has length 9 [2021-10-08 16:12:55,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:55,766 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 1240 transitions. [2021-10-08 16:12:55,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 1240 transitions. [2021-10-08 16:12:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 16:12:55,767 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:55,767 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:55,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:55,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:55,983 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:55,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:55,984 INFO L82 PathProgramCache]: Analyzing trace with hash 470752563, now seen corresponding path program 1 times [2021-10-08 16:12:55,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:55,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684375585] [2021-10-08 16:12:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:55,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:56,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684375585] [2021-10-08 16:12:56,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684375585] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:56,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517365707] [2021-10-08 16:12:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:56,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:56,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:56,019 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:56,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-08 16:12:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:56,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:56,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517365707] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:56,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 16:12:56,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-08 16:12:56,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583238966] [2021-10-08 16:12:56,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 16:12:56,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:56,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 16:12:56,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:56,128 INFO L87 Difference]: Start difference. First operand 350 states and 1240 transitions. Second operand has 5 states, 4 states have (on average 2.75) 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 16:12:56,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:56,147 INFO L93 Difference]: Finished difference Result 538 states and 1824 transitions. [2021-10-08 16:12:56,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:56,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) 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 9 [2021-10-08 16:12:56,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:56,153 INFO L225 Difference]: With dead ends: 538 [2021-10-08 16:12:56,154 INFO L226 Difference]: Without dead ends: 538 [2021-10-08 16:12:56,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 16:12:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-08 16:12:56,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 418. [2021-10-08 16:12:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 415 states have (on average 3.6915662650602408) internal successors, (1532), 417 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1532 transitions. [2021-10-08 16:12:56,178 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1532 transitions. Word has length 9 [2021-10-08 16:12:56,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:56,179 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 1532 transitions. [2021-10-08 16:12:56,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) 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 16:12:56,179 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1532 transitions. [2021-10-08 16:12:56,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:12:56,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:56,184 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:56,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:56,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-08 16:12:56,399 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:56,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1713042801, now seen corresponding path program 1 times [2021-10-08 16:12:56,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:56,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170137033] [2021-10-08 16:12:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:56,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:56,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170137033] [2021-10-08 16:12:56,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170137033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:56,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 16:12:56,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 16:12:56,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075033507] [2021-10-08 16:12:56,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 16:12:56,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:56,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 16:12:56,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 16:12:56,439 INFO L87 Difference]: Start difference. First operand 418 states and 1532 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 16:12:56,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:56,465 INFO L93 Difference]: Finished difference Result 332 states and 1200 transitions. [2021-10-08 16:12:56,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 16:12:56,466 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 16:12:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:56,469 INFO L225 Difference]: With dead ends: 332 [2021-10-08 16:12:56,469 INFO L226 Difference]: Without dead ends: 288 [2021-10-08 16:12:56,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 16:12:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-08 16:12:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-10-08 16:12:56,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 3.3937282229965158) internal successors, (974), 287 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 974 transitions. [2021-10-08 16:12:56,485 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 974 transitions. Word has length 10 [2021-10-08 16:12:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:56,485 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 974 transitions. [2021-10-08 16:12:56,485 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 16:12:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 974 transitions. [2021-10-08 16:12:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 16:12:56,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 16:12:56,487 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 16:12:56,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-08 16:12:56,488 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2021-10-08 16:12:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 16:12:56,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1708429573, now seen corresponding path program 2 times [2021-10-08 16:12:56,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 16:12:56,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778254519] [2021-10-08 16:12:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 16:12:56,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 16:12:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 16:12:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 16:12:56,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 16:12:56,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778254519] [2021-10-08 16:12:56,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778254519] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 16:12:56,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455324592] [2021-10-08 16:12:56,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 16:12:56,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 16:12:56,549 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 16:12:56,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-08 16:12:56,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 16:12:56,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 16:12:56,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 16:12:56,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 16:12:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-08 16:12:56,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455324592] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 16:12:56,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 16:12:56,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2021-10-08 16:12:56,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704411631] [2021-10-08 16:12:56,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 16:12:56,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 16:12:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 16:12:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:56,658 INFO L87 Difference]: Start difference. First operand 288 states and 974 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 16:12:56,668 INFO L93 Difference]: Finished difference Result 234 states and 786 transitions. [2021-10-08 16:12:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 16:12:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have 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 16:12:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 16:12:56,669 INFO L225 Difference]: With dead ends: 234 [2021-10-08 16:12:56,669 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 16:12:56,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-08 16:12:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 16:12:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 16:12:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 16:12:56,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-08 16:12:56,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 16:12:56,671 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 16:12:56,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 16:12:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 16:12:56,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 16:12:56,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 16:12:56,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 16:12:56,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 16:12:56,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 16:12:56,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-08 16:12:56,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 16:12:56,898 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 16:12:56,899 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 16:12:56,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:12:56 BasicIcfg [2021-10-08 16:12:56,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 16:12:56,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 16:12:56,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 16:12:56,902 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 16:12:56,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:12:43" (3/4) ... [2021-10-08 16:12:56,905 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 16:12:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 16:12:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 16:12:56,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-08 16:12:56,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-08 16:12:56,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 16:12:56,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 16:12:56,918 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 16:12:56,963 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-min-array-hom.wvr.c-witness.graphml [2021-10-08 16:12:56,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 16:12:56,965 INFO L168 Benchmark]: Toolchain (without parser) took 14749.33 ms. Allocated memory was 174.1 MB in the beginning and 264.2 MB in the end (delta: 90.2 MB). Free memory was 148.8 MB in the beginning and 110.8 MB in the end (delta: 38.0 MB). Peak memory consumption was 128.9 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,965 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 174.1 MB. Free memory is still 144.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 16:12:56,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.47 ms. Allocated memory is still 174.1 MB. Free memory was 148.2 MB in the beginning and 137.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.47 ms. Allocated memory is still 174.1 MB. Free memory was 137.3 MB in the beginning and 135.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,966 INFO L168 Benchmark]: Boogie Preprocessor took 70.23 ms. Allocated memory is still 174.1 MB. Free memory was 135.7 MB in the beginning and 134.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,967 INFO L168 Benchmark]: RCFGBuilder took 737.11 ms. Allocated memory is still 174.1 MB. Free memory was 134.0 MB in the beginning and 148.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,967 INFO L168 Benchmark]: TraceAbstraction took 13442.31 ms. Allocated memory was 174.1 MB in the beginning and 264.2 MB in the end (delta: 90.2 MB). Free memory was 148.4 MB in the beginning and 114.5 MB in the end (delta: 33.9 MB). Peak memory consumption was 124.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,968 INFO L168 Benchmark]: Witness Printer took 61.54 ms. Allocated memory is still 264.2 MB. Free memory was 114.5 MB in the beginning and 110.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-08 16:12:56,970 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 174.1 MB. Free memory is still 144.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 341.47 ms. Allocated memory is still 174.1 MB. Free memory was 148.2 MB in the beginning and 137.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 76.47 ms. Allocated memory is still 174.1 MB. Free memory was 137.3 MB in the beginning and 135.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.23 ms. Allocated memory is still 174.1 MB. Free memory was 135.7 MB in the beginning and 134.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 737.11 ms. Allocated memory is still 174.1 MB. Free memory was 134.0 MB in the beginning and 148.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13442.31 ms. Allocated memory was 174.1 MB in the beginning and 264.2 MB in the end (delta: 90.2 MB). Free memory was 148.4 MB in the beginning and 114.5 MB in the end (delta: 33.9 MB). Peak memory consumption was 124.1 MB. Max. memory is 8.0 GB. * Witness Printer took 61.54 ms. Allocated memory is still 264.2 MB. Free memory was 114.5 MB in the beginning and 110.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7769.8ms, 157 PlacesBefore, 41 PlacesAfterwards, 160 TransitionsBefore, 35 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 7 FixpointIterations, 83 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 6 ConcurrentYvCompositions, 9 ChoiceCompositions, 165 TotalNumberOfCompositions, 2785 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2431, positive: 2396, positive conditional: 0, positive unconditional: 2396, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1479, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1479, positive: 1469, positive conditional: 0, positive unconditional: 1469, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2431, positive: 927, positive conditional: 0, positive unconditional: 927, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 1479, unknown conditional: 0, unknown unconditional: 1479] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 190 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 13271.7ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 26.8ms, AutomataDifference: 754.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7853.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 442 SDtfs, 558 SDslu, 586 SDs, 0 SdLazy, 229 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 242.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 176.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=760occurred in iteration=9, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 470.8ms AutomataMinimizationTime, 14 MinimizatonAttempts, 2183 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 104.7ms SsaConstructionTime, 466.3ms SatisfiabilityAnalysisTime, 915.9ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 321 SizeOfPredicates, 8 NumberOfNonLiveVariables, 948 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 30/49 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 16:12:57,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...