/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/chl-word-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:08:23,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:08:23,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:08:23,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:08:23,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:08:23,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:08:23,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:08:23,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:08:23,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:08:23,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:08:23,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:08:23,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:08:23,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:08:23,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:08:23,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:08:23,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:08:23,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:08:23,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:08:23,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:08:23,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:08:23,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:08:23,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:08:23,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:08:23,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:08:23,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 19:08:23,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:08:23,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:08:23,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:08:23,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:08:23,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:08:23,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:08:23,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:08:23,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:08:23,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:08:23,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:08:23,833 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:08:23,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:08:23,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:08:23,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:08:23,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:08:23,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:08:23,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:08:23,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:08:23,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:08:23,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:08:23,835 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:08:23,836 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:08:23,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:08:23,836 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:08:23,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:08:23,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:08:23,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:08:23,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:08:23,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:08:23,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:08:23,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:08:23,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:08:23,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:08:23,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:08:23,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:08:23,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:08:23,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:08:24,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:08:24,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:08:24,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:08:24,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:08:24,238 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:08:24,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2021-10-13 19:08:24,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eab80d2be/2730b44ded4d4b6d9665833546ca220c/FLAGb143df918 [2021-10-13 19:08:25,109 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:08:25,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2021-10-13 19:08:25,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eab80d2be/2730b44ded4d4b6d9665833546ca220c/FLAGb143df918 [2021-10-13 19:08:25,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eab80d2be/2730b44ded4d4b6d9665833546ca220c [2021-10-13 19:08:25,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:08:25,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:08:25,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:08:25,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:08:25,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:08:25,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bae364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25, skipping insertion in model container [2021-10-13 19:08:25,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:08:25,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:08:25,792 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/chl-word-symm.wvr.c[2848,2861] [2021-10-13 19:08:25,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:08:25,818 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:08:25,851 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/chl-word-symm.wvr.c[2848,2861] [2021-10-13 19:08:25,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:08:25,871 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:08:25,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25 WrapperNode [2021-10-13 19:08:25,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:08:25,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:08:25,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:08:25,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:08:25,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:08:25,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:08:25,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:08:25,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:08:25,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:08:25,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:08:25,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:08:25,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:08:25,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (1/1) ... [2021-10-13 19:08:25,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:08:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:25,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 19:08:26,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 19:08:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:08:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:08:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:08:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:08:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:08:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:08:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:08:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:08:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:08:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:08:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:08:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:08:26,069 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:08:26,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:08:26,648 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-13 19:08:26,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:08:26 BoogieIcfgContainer [2021-10-13 19:08:26,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:08:26,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:08:26,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:08:26,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:08:26,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:08:25" (1/3) ... [2021-10-13 19:08:26,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3070f581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:08:26, skipping insertion in model container [2021-10-13 19:08:26,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:08:25" (2/3) ... [2021-10-13 19:08:26,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3070f581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:08:26, skipping insertion in model container [2021-10-13 19:08:26,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:08:26" (3/3) ... [2021-10-13 19:08:26,677 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2021-10-13 19:08:26,688 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:08:26,688 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:08:26,689 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-13 19:08:26,689 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:08:26,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,770 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,770 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,780 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,780 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,781 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,781 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,781 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,798 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,798 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,798 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,798 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,799 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,799 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,799 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,799 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,799 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,800 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,806 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,806 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~stop~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,811 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~stop~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,813 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,813 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,813 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,813 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:08:26,821 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 19:08:26,879 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:08:26,887 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 19:08:26,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-10-13 19:08:26,908 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:08:26,919 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 247 transitions, 510 flow [2021-10-13 19:08:26,922 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 247 transitions, 510 flow [2021-10-13 19:08:26,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 247 transitions, 510 flow [2021-10-13 19:08:27,095 INFO L129 PetriNetUnfolder]: 25/245 cut-off events. [2021-10-13 19:08:27,095 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 19:08:27,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 245 events. 25/245 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 432 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 164. Up to 3 conditions per place. [2021-10-13 19:08:27,110 INFO L116 LiptonReduction]: Number of co-enabled transitions 6048 [2021-10-13 19:08:38,148 INFO L131 LiptonReduction]: Checked pairs total: 7611 [2021-10-13 19:08:38,149 INFO L133 LiptonReduction]: Total number of compositions: 297 [2021-10-13 19:08:38,158 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 96 flow [2021-10-13 19:08:38,183 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 194 states, 166 states have (on average 3.0602409638554215) internal successors, (508), 193 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 166 states have (on average 3.0602409638554215) internal successors, (508), 193 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:08:38,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:38,192 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:08:38,193 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:38,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:38,200 INFO L82 PathProgramCache]: Analyzing trace with hash 32687, now seen corresponding path program 1 times [2021-10-13 19:08:38,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:38,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498635579] [2021-10-13 19:08:38,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:38,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:38,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:38,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498635579] [2021-10-13 19:08:38,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498635579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:38,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:38,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:08:38,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269343121] [2021-10-13 19:08:38,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:08:38,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:38,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:08:38,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:08:38,468 INFO L87 Difference]: Start difference. First operand has 194 states, 166 states have (on average 3.0602409638554215) internal successors, (508), 193 states have internal predecessors, (508), 0 states have call successors, (0), 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) [2021-10-13 19:08:38,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:38,533 INFO L93 Difference]: Finished difference Result 383 states and 1011 transitions. [2021-10-13 19:08:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:08:38,535 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 [2021-10-13 19:08:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:38,553 INFO L225 Difference]: With dead ends: 383 [2021-10-13 19:08:38,553 INFO L226 Difference]: Without dead ends: 383 [2021-10-13 19:08:38,554 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:08:38,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-10-13 19:08:38,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 196. [2021-10-13 19:08:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 168 states have (on average 3.0476190476190474) internal successors, (512), 195 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 512 transitions. [2021-10-13 19:08:38,623 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 512 transitions. Word has length 2 [2021-10-13 19:08:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:38,623 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 512 transitions. [2021-10-13 19:08:38,624 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) [2021-10-13 19:08:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 512 transitions. [2021-10-13 19:08:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:08:38,624 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:38,625 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:08:38,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:08:38,625 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:38,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:38,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1015015, now seen corresponding path program 1 times [2021-10-13 19:08:38,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:38,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329686597] [2021-10-13 19:08:38,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:38,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:38,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:38,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329686597] [2021-10-13 19:08:38,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329686597] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:38,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632520322] [2021-10-13 19:08:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:38,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:38,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:38,690 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) [2021-10-13 19:08:38,701 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 [2021-10-13 19:08:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:38,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:08:38,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:38,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632520322] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:38,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:38,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:08:38,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345232805] [2021-10-13 19:08:38,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:38,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:38,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:38,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:38,828 INFO L87 Difference]: Start difference. First operand 196 states and 512 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) [2021-10-13 19:08:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:38,903 INFO L93 Difference]: Finished difference Result 572 states and 1516 transitions. [2021-10-13 19:08:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:08:38,906 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 [2021-10-13 19:08:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:38,919 INFO L225 Difference]: With dead ends: 572 [2021-10-13 19:08:38,919 INFO L226 Difference]: Without dead ends: 572 [2021-10-13 19:08:38,920 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:38,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-10-13 19:08:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 198. [2021-10-13 19:08:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 170 states have (on average 3.0470588235294116) internal successors, (518), 197 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 518 transitions. [2021-10-13 19:08:38,973 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 518 transitions. Word has length 3 [2021-10-13 19:08:38,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:38,973 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 518 transitions. [2021-10-13 19:08:38,974 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) [2021-10-13 19:08:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 518 transitions. [2021-10-13 19:08:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:08:38,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:38,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:08:39,014 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 [2021-10-13 19:08:39,191 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 [2021-10-13 19:08:39,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:39,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:39,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1015014, now seen corresponding path program 1 times [2021-10-13 19:08:39,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:39,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473030017] [2021-10-13 19:08:39,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:39,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:39,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:39,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473030017] [2021-10-13 19:08:39,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473030017] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:39,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324595521] [2021-10-13 19:08:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:39,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:39,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:39,246 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) [2021-10-13 19:08:39,275 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 [2021-10-13 19:08:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:39,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:08:39,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:39,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324595521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:39,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:39,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-13 19:08:39,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113339694] [2021-10-13 19:08:39,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:08:39,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:39,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:08:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:39,332 INFO L87 Difference]: Start difference. First operand 198 states and 518 transitions. Second operand has 4 states, 3 states have (on average 1.0) 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) [2021-10-13 19:08:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:39,376 INFO L93 Difference]: Finished difference Result 383 states and 1013 transitions. [2021-10-13 19:08:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:08:39,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2021-10-13 19:08:39,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:39,385 INFO L225 Difference]: With dead ends: 383 [2021-10-13 19:08:39,385 INFO L226 Difference]: Without dead ends: 383 [2021-10-13 19:08:39,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-10-13 19:08:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 196. [2021-10-13 19:08:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 170 states have (on average 3.023529411764706) internal successors, (514), 195 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 514 transitions. [2021-10-13 19:08:39,421 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 514 transitions. Word has length 3 [2021-10-13 19:08:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:39,422 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 514 transitions. [2021-10-13 19:08:39,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2021-10-13 19:08:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 514 transitions. [2021-10-13 19:08:39,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:08:39,423 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:39,426 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:08:39,465 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 [2021-10-13 19:08:39,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:39,641 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:39,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:39,642 INFO L82 PathProgramCache]: Analyzing trace with hash 31467183, now seen corresponding path program 2 times [2021-10-13 19:08:39,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:39,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507062405] [2021-10-13 19:08:39,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:39,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:39,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:39,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507062405] [2021-10-13 19:08:39,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507062405] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:39,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264076975] [2021-10-13 19:08:39,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:08:39,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:39,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:39,751 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) [2021-10-13 19:08:39,767 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 [2021-10-13 19:08:39,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:08:39,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:08:39,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:08:39,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:08:39,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264076975] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:39,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:39,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:08:39,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898909435] [2021-10-13 19:08:39,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:08:39,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:39,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:08:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:08:39,855 INFO L87 Difference]: Start difference. First operand 196 states and 514 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) [2021-10-13 19:08:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:39,867 INFO L93 Difference]: Finished difference Result 195 states and 513 transitions. [2021-10-13 19:08:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:08:39,870 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 [2021-10-13 19:08:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:39,873 INFO L225 Difference]: With dead ends: 195 [2021-10-13 19:08:39,873 INFO L226 Difference]: Without dead ends: 195 [2021-10-13 19:08:39,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:08:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-13 19:08:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-10-13 19:08:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 168 states have (on average 3.0297619047619047) internal successors, (509), 192 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 509 transitions. [2021-10-13 19:08:39,896 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 509 transitions. Word has length 4 [2021-10-13 19:08:39,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:39,896 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 509 transitions. [2021-10-13 19:08:39,897 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) [2021-10-13 19:08:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 509 transitions. [2021-10-13 19:08:39,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 19:08:39,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:39,897 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-13 19:08:39,941 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 [2021-10-13 19:08:40,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:40,111 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash 977122875, now seen corresponding path program 1 times [2021-10-13 19:08:40,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:40,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932318251] [2021-10-13 19:08:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:40,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:40,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:40,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932318251] [2021-10-13 19:08:40,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932318251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:40,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626840099] [2021-10-13 19:08:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:40,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:40,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:40,208 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) [2021-10-13 19:08:40,209 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 [2021-10-13 19:08:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:40,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:08:40,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:40,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626840099] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:40,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:40,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 19:08:40,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407728814] [2021-10-13 19:08:40,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:08:40,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:08:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:08:40,303 INFO L87 Difference]: Start difference. First operand 193 states and 509 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2021-10-13 19:08:40,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:40,356 INFO L93 Difference]: Finished difference Result 758 states and 2014 transitions. [2021-10-13 19:08:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:08:40,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 5 [2021-10-13 19:08:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:40,364 INFO L225 Difference]: With dead ends: 758 [2021-10-13 19:08:40,364 INFO L226 Difference]: Without dead ends: 758 [2021-10-13 19:08:40,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:08:40,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-10-13 19:08:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 194. [2021-10-13 19:08:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 169 states have (on average 3.0236686390532546) internal successors, (511), 193 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 511 transitions. [2021-10-13 19:08:40,381 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 511 transitions. Word has length 5 [2021-10-13 19:08:40,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:40,381 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 511 transitions. [2021-10-13 19:08:40,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2021-10-13 19:08:40,381 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 511 transitions. [2021-10-13 19:08:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:08:40,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:40,382 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2021-10-13 19:08:40,417 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 [2021-10-13 19:08:40,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:40,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:40,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:40,597 INFO L82 PathProgramCache]: Analyzing trace with hash 226040401, now seen corresponding path program 2 times [2021-10-13 19:08:40,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:40,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673859470] [2021-10-13 19:08:40,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:40,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:40,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:40,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673859470] [2021-10-13 19:08:40,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673859470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:40,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778285045] [2021-10-13 19:08:40,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:08:40,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:40,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:40,658 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) [2021-10-13 19:08:40,670 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 [2021-10-13 19:08:40,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:08:40,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:08:40,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:08:40,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:08:40,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778285045] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:40,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:40,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2021-10-13 19:08:40,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240732577] [2021-10-13 19:08:40,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:08:40,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:40,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:08:40,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:08:40,766 INFO L87 Difference]: Start difference. First operand 194 states and 511 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:40,803 INFO L93 Difference]: Finished difference Result 169 states and 447 transitions. [2021-10-13 19:08:40,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:08:40,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:08:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:40,806 INFO L225 Difference]: With dead ends: 169 [2021-10-13 19:08:40,806 INFO L226 Difference]: Without dead ends: 169 [2021-10-13 19:08:40,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 27.8ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:08:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-13 19:08:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2021-10-13 19:08:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 3.0) internal successors, (441), 165 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2021-10-13 19:08:40,816 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 6 [2021-10-13 19:08:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:40,820 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2021-10-13 19:08:40,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2021-10-13 19:08:40,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:08:40,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:40,824 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:40,866 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 [2021-10-13 19:08:41,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:41,041 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:41,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1603012815, now seen corresponding path program 1 times [2021-10-13 19:08:41,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:41,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206126709] [2021-10-13 19:08:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:41,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:41,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206126709] [2021-10-13 19:08:41,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206126709] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:41,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:41,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:08:41,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632711736] [2021-10-13 19:08:41,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:08:41,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:08:41,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:08:41,120 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-10-13 19:08:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:41,171 INFO L93 Difference]: Finished difference Result 286 states and 756 transitions. [2021-10-13 19:08:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:08:41,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 7 [2021-10-13 19:08:41,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:41,175 INFO L225 Difference]: With dead ends: 286 [2021-10-13 19:08:41,175 INFO L226 Difference]: Without dead ends: 286 [2021-10-13 19:08:41,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:08:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-10-13 19:08:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 194. [2021-10-13 19:08:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 175 states have (on average 3.0914285714285716) internal successors, (541), 193 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 541 transitions. [2021-10-13 19:08:41,186 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 541 transitions. Word has length 7 [2021-10-13 19:08:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:41,187 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 541 transitions. [2021-10-13 19:08:41,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-10-13 19:08:41,191 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 541 transitions. [2021-10-13 19:08:41,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:08:41,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:41,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:41,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:08:41,192 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:41,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:41,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1603011991, now seen corresponding path program 1 times [2021-10-13 19:08:41,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:41,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055076049] [2021-10-13 19:08:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:41,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:41,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055076049] [2021-10-13 19:08:41,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055076049] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:41,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:41,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:08:41,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579431400] [2021-10-13 19:08:41,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:08:41,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:08:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:08:41,284 INFO L87 Difference]: Start difference. First operand 194 states and 541 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-13 19:08:41,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:41,342 INFO L93 Difference]: Finished difference Result 311 states and 905 transitions. [2021-10-13 19:08:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:08:41,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 7 [2021-10-13 19:08:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:41,346 INFO L225 Difference]: With dead ends: 311 [2021-10-13 19:08:41,346 INFO L226 Difference]: Without dead ends: 311 [2021-10-13 19:08:41,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:08:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-10-13 19:08:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2021-10-13 19:08:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 280 states have (on average 3.2071428571428573) internal successors, (898), 298 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 898 transitions. [2021-10-13 19:08:41,362 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 898 transitions. Word has length 7 [2021-10-13 19:08:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:41,362 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 898 transitions. [2021-10-13 19:08:41,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-13 19:08:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 898 transitions. [2021-10-13 19:08:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:08:41,364 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:41,364 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:41,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:08:41,364 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:41,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:41,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1603011921, now seen corresponding path program 1 times [2021-10-13 19:08:41,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:41,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623575515] [2021-10-13 19:08:41,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:41,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:41,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623575515] [2021-10-13 19:08:41,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623575515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:41,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:41,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:08:41,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709212110] [2021-10-13 19:08:41,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:41,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:41,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:41,444 INFO L87 Difference]: Start difference. First operand 299 states and 898 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-10-13 19:08:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:41,512 INFO L93 Difference]: Finished difference Result 567 states and 1703 transitions. [2021-10-13 19:08:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:08:41,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 7 [2021-10-13 19:08:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:41,520 INFO L225 Difference]: With dead ends: 567 [2021-10-13 19:08:41,520 INFO L226 Difference]: Without dead ends: 555 [2021-10-13 19:08:41,520 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:08:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-10-13 19:08:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 279. [2021-10-13 19:08:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 264 states have (on average 3.132575757575758) internal successors, (827), 278 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 827 transitions. [2021-10-13 19:08:41,536 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 827 transitions. Word has length 7 [2021-10-13 19:08:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:41,536 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 827 transitions. [2021-10-13 19:08:41,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-10-13 19:08:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 827 transitions. [2021-10-13 19:08:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:08:41,538 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:41,538 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:41,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:08:41,538 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:41,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1848842553, now seen corresponding path program 1 times [2021-10-13 19:08:41,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:41,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889493430] [2021-10-13 19:08:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:41,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:41,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889493430] [2021-10-13 19:08:41,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889493430] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:41,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:41,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:08:41,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466367376] [2021-10-13 19:08:41,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:41,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:41,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:41,624 INFO L87 Difference]: Start difference. First operand 279 states and 827 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:41,721 INFO L93 Difference]: Finished difference Result 527 states and 1552 transitions. [2021-10-13 19:08:41,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:08:41,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:08:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:41,728 INFO L225 Difference]: With dead ends: 527 [2021-10-13 19:08:41,728 INFO L226 Difference]: Without dead ends: 527 [2021-10-13 19:08:41,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:08:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-10-13 19:08:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 421. [2021-10-13 19:08:41,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 407 states have (on average 3.312039312039312) internal successors, (1348), 420 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 1348 transitions. [2021-10-13 19:08:41,749 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 1348 transitions. Word has length 8 [2021-10-13 19:08:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:41,750 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 1348 transitions. [2021-10-13 19:08:41,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 1348 transitions. [2021-10-13 19:08:41,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:08:41,752 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:41,752 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:41,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 19:08:41,752 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:41,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1848842538, now seen corresponding path program 1 times [2021-10-13 19:08:41,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:41,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689203412] [2021-10-13 19:08:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:41,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:41,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689203412] [2021-10-13 19:08:41,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689203412] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:41,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:41,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:08:41,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582360220] [2021-10-13 19:08:41,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:08:41,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:08:41,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:08:41,779 INFO L87 Difference]: Start difference. First operand 421 states and 1348 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) [2021-10-13 19:08:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:41,800 INFO L93 Difference]: Finished difference Result 601 states and 1938 transitions. [2021-10-13 19:08:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:08:41,801 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 [2021-10-13 19:08:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:41,806 INFO L225 Difference]: With dead ends: 601 [2021-10-13 19:08:41,806 INFO L226 Difference]: Without dead ends: 601 [2021-10-13 19:08:41,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:08:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-10-13 19:08:41,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 519. [2021-10-13 19:08:41,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 505 states have (on average 3.5465346534653466) internal successors, (1791), 518 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 1791 transitions. [2021-10-13 19:08:41,828 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 1791 transitions. Word has length 8 [2021-10-13 19:08:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:41,829 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 1791 transitions. [2021-10-13 19:08:41,829 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) [2021-10-13 19:08:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 1791 transitions. [2021-10-13 19:08:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:08:41,830 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:41,830 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:41,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 19:08:41,831 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:41,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:41,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1832222671, now seen corresponding path program 1 times [2021-10-13 19:08:41,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:41,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999600716] [2021-10-13 19:08:41,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:41,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:41,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999600716] [2021-10-13 19:08:41,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999600716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:41,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244643970] [2021-10-13 19:08:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:41,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:41,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:41,882 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) [2021-10-13 19:08:41,885 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 [2021-10-13 19:08:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:41,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:08:41,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:41,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244643970] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:42,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:42,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2021-10-13 19:08:42,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650237194] [2021-10-13 19:08:42,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:08:42,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:42,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:08:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:08:42,001 INFO L87 Difference]: Start difference. First operand 519 states and 1791 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2021-10-13 19:08:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:42,022 INFO L93 Difference]: Finished difference Result 481 states and 1604 transitions. [2021-10-13 19:08:42,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:08:42,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2021-10-13 19:08:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:42,028 INFO L225 Difference]: With dead ends: 481 [2021-10-13 19:08:42,028 INFO L226 Difference]: Without dead ends: 475 [2021-10-13 19:08:42,028 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.4ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:08:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-10-13 19:08:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 256. [2021-10-13 19:08:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 248 states have (on average 3.2338709677419355) internal successors, (802), 255 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 802 transitions. [2021-10-13 19:08:42,041 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 802 transitions. Word has length 8 [2021-10-13 19:08:42,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:42,042 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 802 transitions. [2021-10-13 19:08:42,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2021-10-13 19:08:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 802 transitions. [2021-10-13 19:08:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:08:42,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:42,043 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:42,079 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 [2021-10-13 19:08:42,258 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,SelfDestructingSolverStorable11 [2021-10-13 19:08:42,259 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:42,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:42,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1164495517, now seen corresponding path program 1 times [2021-10-13 19:08:42,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:42,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48163006] [2021-10-13 19:08:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:42,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:42,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:42,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48163006] [2021-10-13 19:08:42,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48163006] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:42,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136224238] [2021-10-13 19:08:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:42,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:42,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:42,336 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) [2021-10-13 19:08:42,372 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 [2021-10-13 19:08:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:42,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 19:08:42,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:42,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136224238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:42,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:42,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-10-13 19:08:42,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095221190] [2021-10-13 19:08:42,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:08:42,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:42,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:08:42,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:08:42,678 INFO L87 Difference]: Start difference. First operand 256 states and 802 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:42,849 INFO L93 Difference]: Finished difference Result 428 states and 1252 transitions. [2021-10-13 19:08:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:08:42,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:08:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:42,853 INFO L225 Difference]: With dead ends: 428 [2021-10-13 19:08:42,853 INFO L226 Difference]: Without dead ends: 428 [2021-10-13 19:08:42,854 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:08:42,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-10-13 19:08:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 257. [2021-10-13 19:08:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 249 states have (on average 3.2289156626506026) internal successors, (804), 256 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:42,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 804 transitions. [2021-10-13 19:08:42,866 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 804 transitions. Word has length 9 [2021-10-13 19:08:42,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:42,867 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 804 transitions. [2021-10-13 19:08:42,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 804 transitions. [2021-10-13 19:08:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:08:42,868 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:42,868 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:42,905 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 [2021-10-13 19:08:43,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 19:08:43,081 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:43,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:43,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1398013255, now seen corresponding path program 1 times [2021-10-13 19:08:43,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:43,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755986448] [2021-10-13 19:08:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:43,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:43,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:43,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:43,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755986448] [2021-10-13 19:08:43,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755986448] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:43,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:43,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:08:43,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604025376] [2021-10-13 19:08:43,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:43,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:43,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:43,131 INFO L87 Difference]: Start difference. First operand 257 states and 804 transitions. Second operand has 5 states, 5 states have (on average 1.8) 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) [2021-10-13 19:08:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:43,183 INFO L93 Difference]: Finished difference Result 399 states and 1154 transitions. [2021-10-13 19:08:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:08:43,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) 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 [2021-10-13 19:08:43,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:43,187 INFO L225 Difference]: With dead ends: 399 [2021-10-13 19:08:43,188 INFO L226 Difference]: Without dead ends: 395 [2021-10-13 19:08:43,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-10-13 19:08:43,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 303. [2021-10-13 19:08:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 295 states have (on average 3.1796610169491526) internal successors, (938), 302 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 938 transitions. [2021-10-13 19:08:43,201 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 938 transitions. Word has length 9 [2021-10-13 19:08:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:43,201 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 938 transitions. [2021-10-13 19:08:43,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) 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) [2021-10-13 19:08:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 938 transitions. [2021-10-13 19:08:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:08:43,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:43,202 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:43,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 19:08:43,203 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:43,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:43,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1479545235, now seen corresponding path program 1 times [2021-10-13 19:08:43,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:43,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076331169] [2021-10-13 19:08:43,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:43,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:43,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:43,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076331169] [2021-10-13 19:08:43,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076331169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:43,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:43,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:08:43,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240885008] [2021-10-13 19:08:43,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:43,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:43,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:43,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:43,247 INFO L87 Difference]: Start difference. First operand 303 states and 938 transitions. Second operand has 5 states, 5 states have (on average 1.8) 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) [2021-10-13 19:08:43,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:43,293 INFO L93 Difference]: Finished difference Result 329 states and 946 transitions. [2021-10-13 19:08:43,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:08:43,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) 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 [2021-10-13 19:08:43,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:43,297 INFO L225 Difference]: With dead ends: 329 [2021-10-13 19:08:43,297 INFO L226 Difference]: Without dead ends: 300 [2021-10-13 19:08:43,298 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-13 19:08:43,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 294. [2021-10-13 19:08:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 286 states have (on average 3.0874125874125875) internal successors, (883), 293 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:43,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 883 transitions. [2021-10-13 19:08:43,310 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 883 transitions. Word has length 9 [2021-10-13 19:08:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:43,310 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 883 transitions. [2021-10-13 19:08:43,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) 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) [2021-10-13 19:08:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 883 transitions. [2021-10-13 19:08:43,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:08:43,311 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:43,311 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:43,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 19:08:43,312 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:43,312 INFO L82 PathProgramCache]: Analyzing trace with hash -88695175, now seen corresponding path program 2 times [2021-10-13 19:08:43,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:43,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834412529] [2021-10-13 19:08:43,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:43,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:08:43,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:43,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834412529] [2021-10-13 19:08:43,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834412529] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:43,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396275850] [2021-10-13 19:08:43,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:08:43,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:43,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:43,401 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) [2021-10-13 19:08:43,405 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 [2021-10-13 19:08:43,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:08:43,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:08:43,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 19:08:43,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:08:43,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396275850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:43,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:43,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2021-10-13 19:08:43,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023667374] [2021-10-13 19:08:43,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:08:43,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:43,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:08:43,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:08:43,591 INFO L87 Difference]: Start difference. First operand 294 states and 883 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) [2021-10-13 19:08:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:43,606 INFO L93 Difference]: Finished difference Result 266 states and 774 transitions. [2021-10-13 19:08:43,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:08:43,607 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 [2021-10-13 19:08:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:43,609 INFO L225 Difference]: With dead ends: 266 [2021-10-13 19:08:43,609 INFO L226 Difference]: Without dead ends: 234 [2021-10-13 19:08:43,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:08:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-10-13 19:08:43,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 137. [2021-10-13 19:08:43,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 132 states have (on average 2.9545454545454546) internal successors, (390), 136 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 390 transitions. [2021-10-13 19:08:43,616 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 390 transitions. Word has length 10 [2021-10-13 19:08:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:43,616 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 390 transitions. [2021-10-13 19:08:43,617 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) [2021-10-13 19:08:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 390 transitions. [2021-10-13 19:08:43,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:08:43,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:43,617 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:43,656 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 [2021-10-13 19:08:43,831 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,SelfDestructingSolverStorable15 [2021-10-13 19:08:43,832 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:43,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:43,833 INFO L82 PathProgramCache]: Analyzing trace with hash 169881871, now seen corresponding path program 1 times [2021-10-13 19:08:43,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:43,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529810925] [2021-10-13 19:08:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:43,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:08:43,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:43,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529810925] [2021-10-13 19:08:43,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529810925] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:43,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:08:43,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:08:43,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33256260] [2021-10-13 19:08:43,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:43,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:43,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:43,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:43,879 INFO L87 Difference]: Start difference. First operand 137 states and 390 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:43,931 INFO L93 Difference]: Finished difference Result 209 states and 551 transitions. [2021-10-13 19:08:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:08:43,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:08:43,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:43,933 INFO L225 Difference]: With dead ends: 209 [2021-10-13 19:08:43,933 INFO L226 Difference]: Without dead ends: 205 [2021-10-13 19:08:43,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:08:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-13 19:08:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 159. [2021-10-13 19:08:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 2.9285714285714284) internal successors, (451), 158 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 451 transitions. [2021-10-13 19:08:43,940 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 451 transitions. Word has length 10 [2021-10-13 19:08:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:43,940 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 451 transitions. [2021-10-13 19:08:43,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 451 transitions. [2021-10-13 19:08:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:08:43,941 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:43,941 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:43,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 19:08:43,941 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:43,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:43,942 INFO L82 PathProgramCache]: Analyzing trace with hash 251413851, now seen corresponding path program 1 times [2021-10-13 19:08:43,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:43,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193768791] [2021-10-13 19:08:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:43,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:44,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:44,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:44,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193768791] [2021-10-13 19:08:44,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193768791] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:44,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232761841] [2021-10-13 19:08:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:44,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:44,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:44,005 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) [2021-10-13 19:08:44,028 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 [2021-10-13 19:08:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:44,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:08:44,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:44,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232761841] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:44,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:44,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-10-13 19:08:44,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584918936] [2021-10-13 19:08:44,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:08:44,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:08:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:08:44,154 INFO L87 Difference]: Start difference. First operand 159 states and 451 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:44,207 INFO L93 Difference]: Finished difference Result 167 states and 447 transitions. [2021-10-13 19:08:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:08:44,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 19:08:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:44,209 INFO L225 Difference]: With dead ends: 167 [2021-10-13 19:08:44,210 INFO L226 Difference]: Without dead ends: 138 [2021-10-13 19:08:44,210 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 57.1ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:08:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-10-13 19:08:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-10-13 19:08:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 133 states have (on average 2.9398496240601504) internal successors, (391), 137 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 391 transitions. [2021-10-13 19:08:44,217 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 391 transitions. Word has length 10 [2021-10-13 19:08:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:44,217 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 391 transitions. [2021-10-13 19:08:44,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:44,217 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 391 transitions. [2021-10-13 19:08:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:08:44,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:44,218 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:44,260 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 [2021-10-13 19:08:44,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:44,421 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:44,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1238520939, now seen corresponding path program 1 times [2021-10-13 19:08:44,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:44,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283998470] [2021-10-13 19:08:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:44,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:44,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:44,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283998470] [2021-10-13 19:08:44,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283998470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:44,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823156351] [2021-10-13 19:08:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:44,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:44,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:44,483 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:44,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 19:08:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:44,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:08:44,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:44,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823156351] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:44,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:44,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-13 19:08:44,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815374013] [2021-10-13 19:08:44,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:08:44,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:08:44,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:08:44,684 INFO L87 Difference]: Start difference. First operand 138 states and 391 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:45,037 INFO L93 Difference]: Finished difference Result 572 states and 1441 transitions. [2021-10-13 19:08:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 19:08:45,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:08:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:45,042 INFO L225 Difference]: With dead ends: 572 [2021-10-13 19:08:45,042 INFO L226 Difference]: Without dead ends: 548 [2021-10-13 19:08:45,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 156.9ms TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2021-10-13 19:08:45,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-10-13 19:08:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 183. [2021-10-13 19:08:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 2.949438202247191) internal successors, (525), 182 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 525 transitions. [2021-10-13 19:08:45,053 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 525 transitions. Word has length 11 [2021-10-13 19:08:45,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:45,055 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 525 transitions. [2021-10-13 19:08:45,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 525 transitions. [2021-10-13 19:08:45,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:08:45,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:45,056 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:45,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:45,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:45,271 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:45,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1156988959, now seen corresponding path program 1 times [2021-10-13 19:08:45,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:45,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606291827] [2021-10-13 19:08:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:45,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:08:45,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:45,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606291827] [2021-10-13 19:08:45,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606291827] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:45,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069797804] [2021-10-13 19:08:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:45,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:45,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:45,305 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:45,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 19:08:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:45,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:08:45,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:08:45,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069797804] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:45,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:45,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2021-10-13 19:08:45,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703901572] [2021-10-13 19:08:45,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:08:45,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:08:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:08:45,482 INFO L87 Difference]: Start difference. First operand 183 states and 525 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:45,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:45,579 INFO L93 Difference]: Finished difference Result 250 states and 637 transitions. [2021-10-13 19:08:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 19:08:45,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:08:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:45,581 INFO L225 Difference]: With dead ends: 250 [2021-10-13 19:08:45,581 INFO L226 Difference]: Without dead ends: 106 [2021-10-13 19:08:45,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.1ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:08:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-13 19:08:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 64. [2021-10-13 19:08:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 2.532258064516129) internal successors, (157), 63 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 157 transitions. [2021-10-13 19:08:45,585 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 157 transitions. Word has length 11 [2021-10-13 19:08:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:45,585 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 157 transitions. [2021-10-13 19:08:45,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 157 transitions. [2021-10-13 19:08:45,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:08:45,586 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:45,586 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:45,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:45,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:45,800 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:45,800 INFO L82 PathProgramCache]: Analyzing trace with hash -385001209, now seen corresponding path program 2 times [2021-10-13 19:08:45,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:45,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033753861] [2021-10-13 19:08:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:45,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:08:45,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:45,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033753861] [2021-10-13 19:08:45,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033753861] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:45,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952950629] [2021-10-13 19:08:45,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:08:45,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:45,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:45,835 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:45,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 19:08:45,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:08:45,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:08:45,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:08:45,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 19:08:45,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952950629] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:45,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:08:45,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2] total 5 [2021-10-13 19:08:45,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454414900] [2021-10-13 19:08:45,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:08:45,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:08:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:08:45,981 INFO L87 Difference]: Start difference. First operand 64 states and 157 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:46,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:46,027 INFO L93 Difference]: Finished difference Result 80 states and 207 transitions. [2021-10-13 19:08:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:08:46,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:08:46,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:46,029 INFO L225 Difference]: With dead ends: 80 [2021-10-13 19:08:46,029 INFO L226 Difference]: Without dead ends: 80 [2021-10-13 19:08:46,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:08:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-13 19:08:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 56. [2021-10-13 19:08:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 2.4727272727272727) internal successors, (136), 55 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 136 transitions. [2021-10-13 19:08:46,031 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 136 transitions. Word has length 13 [2021-10-13 19:08:46,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:46,032 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 136 transitions. [2021-10-13 19:08:46,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 136 transitions. [2021-10-13 19:08:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:08:46,038 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:08:46,038 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:08:46,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:46,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-13 19:08:46,252 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2021-10-13 19:08:46,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:08:46,253 INFO L82 PathProgramCache]: Analyzing trace with hash -385001207, now seen corresponding path program 1 times [2021-10-13 19:08:46,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:08:46,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765455141] [2021-10-13 19:08:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:46,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:08:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:46,295 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:08:46,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:08:46,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765455141] [2021-10-13 19:08:46,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765455141] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:08:46,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083751265] [2021-10-13 19:08:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:08:46,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:08:46,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:08:46,297 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:08:46,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 19:08:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:08:46,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:08:46,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:08:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:08:46,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083751265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:08:46,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:08:46,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-13 19:08:46,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821489203] [2021-10-13 19:08:46,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:08:46,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:08:46,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:08:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:46,429 INFO L87 Difference]: Start difference. First operand 56 states and 136 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:08:46,437 INFO L93 Difference]: Finished difference Result 48 states and 115 transitions. [2021-10-13 19:08:46,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:08:46,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:08:46,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:08:46,437 INFO L225 Difference]: With dead ends: 48 [2021-10-13 19:08:46,437 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 19:08:46,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:08:46,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 19:08:46,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 19:08:46,438 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) [2021-10-13 19:08:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 19:08:46,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-13 19:08:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:08:46,439 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 19:08:46,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:08:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 19:08:46,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 19:08:46,442 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,442 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:08:46,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:08:46,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:08:46,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-13 19:08:46,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-13 19:08:46,666 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:08:46,667 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:08:46,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:08:46 BasicIcfg [2021-10-13 19:08:46,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:08:46,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:08:46,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:08:46,669 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:08:46,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:08:26" (3/4) ... [2021-10-13 19:08:46,672 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:08:46,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:08:46,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:08:46,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 19:08:46,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:08:46,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:08:46,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:08:46,752 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl-word-symm.wvr.c-witness.graphml [2021-10-13 19:08:46,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:08:46,754 INFO L168 Benchmark]: Toolchain (without parser) took 21328.19 ms. Allocated memory was 155.2 MB in the beginning and 231.7 MB in the end (delta: 76.5 MB). Free memory was 129.5 MB in the beginning and 207.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 131.9 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,754 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:08:46,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.82 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 118.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.61 ms. Allocated memory is still 155.2 MB. Free memory was 118.1 MB in the beginning and 116.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,755 INFO L168 Benchmark]: Boogie Preprocessor took 37.85 ms. Allocated memory is still 155.2 MB. Free memory was 116.2 MB in the beginning and 114.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,756 INFO L168 Benchmark]: RCFGBuilder took 697.20 ms. Allocated memory is still 155.2 MB. Free memory was 114.4 MB in the beginning and 132.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,756 INFO L168 Benchmark]: TraceAbstraction took 20006.48 ms. Allocated memory was 155.2 MB in the beginning and 231.7 MB in the end (delta: 76.5 MB). Free memory was 131.7 MB in the beginning and 78.4 MB in the end (delta: 53.3 MB). Peak memory consumption was 129.9 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,757 INFO L168 Benchmark]: Witness Printer took 82.96 ms. Allocated memory is still 231.7 MB. Free memory was 78.4 MB in the beginning and 207.9 MB in the end (delta: -129.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:08:46,759 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 155.2 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 438.82 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 118.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.61 ms. Allocated memory is still 155.2 MB. Free memory was 118.1 MB in the beginning and 116.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.85 ms. Allocated memory is still 155.2 MB. Free memory was 116.2 MB in the beginning and 114.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 697.20 ms. Allocated memory is still 155.2 MB. Free memory was 114.4 MB in the beginning and 132.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20006.48 ms. Allocated memory was 155.2 MB in the beginning and 231.7 MB in the end (delta: 76.5 MB). Free memory was 131.7 MB in the beginning and 78.4 MB in the end (delta: 53.3 MB). Peak memory consumption was 129.9 MB. Max. memory is 8.0 GB. * Witness Printer took 82.96 ms. Allocated memory is still 231.7 MB. Free memory was 78.4 MB in the beginning and 207.9 MB in the end (delta: -129.5 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: 11226.4ms, 229 PlacesBefore, 40 PlacesAfterwards, 247 TransitionsBefore, 40 TransitionsAfterwards, 6048 CoEnabledTransitionPairs, 8 FixpointIterations, 129 TrivialSequentialCompositions, 95 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 24 ConcurrentYvCompositions, 18 ChoiceCompositions, 297 TotalNumberOfCompositions, 7611 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6251, positive: 6139, positive conditional: 0, positive unconditional: 6139, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4301, positive: 4270, positive conditional: 0, positive unconditional: 4270, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4301, positive: 4270, positive conditional: 0, positive unconditional: 4270, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 75, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6251, positive: 1869, positive conditional: 0, positive unconditional: 1869, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 4301, unknown conditional: 0, unknown unconditional: 4301] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - 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: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: 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 5 procedures, 309 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 19787.3ms, OverallIterations: 22, TraceHistogramMax: 3, EmptinessCheckTime: 23.2ms, AutomataDifference: 1686.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11295.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 608 SDtfs, 1336 SDslu, 1235 SDs, 0 SdLazy, 880 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 816.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 634.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=519occurred in iteration=11, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 351.4ms AutomataMinimizationTime, 22 MinimizatonAttempts, 2947 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 161.8ms SsaConstructionTime, 623.8ms SatisfiabilityAnalysisTime, 1782.9ms InterpolantComputationTime, 279 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 1026 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1668 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 35 InterpolantComputations, 16 PerfectInterpolantSequences, 59/94 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 19:08:46,800 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...