/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:30:26,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:30:26,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:30:26,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:30:26,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:30:26,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:30:26,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:30:26,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:30:26,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:30:26,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:30:26,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:30:26,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:30:26,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:30:26,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:30:26,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:30:26,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:30:26,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:30:26,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:30:26,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:30:26,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:30:26,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:30:26,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:30:26,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:30:26,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:30:26,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:30:26,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:30:26,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:30:26,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:30:26,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:30:26,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:30:26,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:30:26,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:30:26,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:30:26,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:30:26,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:30:26,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:30:26,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:30:26,580 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:30:26,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:30:26,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:30:26,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:30:26,582 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:30:26,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:30:26,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:30:26,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:30:26,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:30:26,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:30:26,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:30:26,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:30:26,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:30:26,584 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:30:26,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:30:26,584 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:30:26,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:30:26,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:30:26,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:30:26,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:30:26,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:30:26,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:30:26,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:30:26,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:30:26,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:30:26,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:30:26,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:30:26,586 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:30:26,586 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:30:26,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:30:26,587 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:30:26,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:30:26,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:30:26,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:30:26,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:30:26,916 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:30:26,916 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-16 12:30:26,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/651f6e168/265fe1766fa740f5bc543286bd902c8f/FLAG6d334a380 [2020-10-16 12:30:27,576 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:30:27,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-16 12:30:27,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/651f6e168/265fe1766fa740f5bc543286bd902c8f/FLAG6d334a380 [2020-10-16 12:30:27,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/651f6e168/265fe1766fa740f5bc543286bd902c8f [2020-10-16 12:30:27,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:30:27,814 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:30:27,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:27,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:30:27,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:30:27,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:27" (1/1) ... [2020-10-16 12:30:27,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b02091f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:27, skipping insertion in model container [2020-10-16 12:30:27,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:27" (1/1) ... [2020-10-16 12:30:27,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:30:27,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:30:28,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:28,496 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:30:28,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:28,715 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:30:28,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28 WrapperNode [2020-10-16 12:30:28,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:28,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:28,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:30:28,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:30:28,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:28,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:30:28,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:30:28,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:30:28,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... [2020-10-16 12:30:28,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:30:28,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:30:28,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:30:28,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:30:28,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:30:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 12:30:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 12:30:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 12:30:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 12:30:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:30:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:30:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:30:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:30:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:30:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:30:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:30:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:30:28,997 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:30:29,780 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:30:29,780 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-16 12:30:29,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:29 BoogieIcfgContainer [2020-10-16 12:30:29,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:30:29,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:30:29,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:30:29,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:30:29,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:30:27" (1/3) ... [2020-10-16 12:30:29,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330bfb06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:29, skipping insertion in model container [2020-10-16 12:30:29,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:28" (2/3) ... [2020-10-16 12:30:29,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330bfb06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:29, skipping insertion in model container [2020-10-16 12:30:29,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:29" (3/3) ... [2020-10-16 12:30:29,791 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-16 12:30:29,803 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:30:29,803 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:30:29,811 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:30:29,812 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:30:29,875 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,875 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,875 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,876 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,876 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,876 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,876 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,876 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,877 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,877 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,877 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,877 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,877 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,878 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,878 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,878 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,878 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,878 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,879 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,879 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,879 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,879 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,879 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,880 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,881 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,881 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,881 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,881 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,881 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,882 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,882 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,882 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,882 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,882 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,883 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,885 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,885 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,885 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,885 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,885 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,886 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,886 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,886 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,886 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,886 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,887 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,887 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,887 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,887 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,888 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,888 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,888 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,888 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,888 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,889 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,890 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,890 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,890 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,890 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,891 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,891 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,891 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,891 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,891 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,893 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,894 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,894 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,894 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,895 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,895 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,895 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,895 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,895 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,896 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,897 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,897 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,897 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,897 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,897 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,898 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,898 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,898 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,898 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,898 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,899 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,899 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,899 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,899 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,899 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,900 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,900 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,900 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,900 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,901 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,901 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,901 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,901 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,901 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,902 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,902 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,902 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,902 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,902 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,903 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,903 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,903 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,903 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,908 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,908 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,909 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,909 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,909 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,910 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,910 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,910 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,910 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,910 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,911 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,911 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,911 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,911 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,918 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,919 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,919 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,919 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,919 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,919 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,921 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,922 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,922 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,922 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:29,935 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:30:29,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:30:29,971 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:30:29,972 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:30:29,972 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:30:29,972 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:30:29,972 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:30:29,972 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:30:29,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:30:29,972 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:30:29,989 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:30:29,990 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 12:30:29,993 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 12:30:29,995 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-16 12:30:30,069 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-16 12:30:30,070 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:30:30,085 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 12:30:30,095 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-16 12:30:32,828 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-16 12:30:33,429 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-16 12:30:33,635 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-16 12:30:33,651 INFO L132 LiptonReduction]: Checked pairs total: 10155 [2020-10-16 12:30:33,651 INFO L134 LiptonReduction]: Total number of compositions: 127 [2020-10-16 12:30:33,658 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-10-16 12:30:33,685 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-10-16 12:30:33,688 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-10-16 12:30:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:30:33,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:33,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:30:33,696 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:33,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:33,702 INFO L82 PathProgramCache]: Analyzing trace with hash 475986746, now seen corresponding path program 1 times [2020-10-16 12:30:33,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:33,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364017856] [2020-10-16 12:30:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:33,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364017856] [2020-10-16 12:30:33,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:33,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:33,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [391415859] [2020-10-16 12:30:33,945 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:33,948 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:33,959 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 12:30:33,959 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:33,963 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:33,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:33,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:33,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:33,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:33,976 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-10-16 12:30:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:34,056 INFO L93 Difference]: Finished difference Result 652 states and 1665 transitions. [2020-10-16 12:30:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:34,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 12:30:34,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:34,083 INFO L225 Difference]: With dead ends: 652 [2020-10-16 12:30:34,083 INFO L226 Difference]: Without dead ends: 630 [2020-10-16 12:30:34,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:34,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-16 12:30:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 462. [2020-10-16 12:30:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-16 12:30:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1240 transitions. [2020-10-16 12:30:34,181 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1240 transitions. Word has length 6 [2020-10-16 12:30:34,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:34,181 INFO L481 AbstractCegarLoop]: Abstraction has 462 states and 1240 transitions. [2020-10-16 12:30:34,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1240 transitions. [2020-10-16 12:30:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:30:34,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:34,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:34,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:30:34,185 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:34,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:34,186 INFO L82 PathProgramCache]: Analyzing trace with hash 929097400, now seen corresponding path program 1 times [2020-10-16 12:30:34,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:34,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231228698] [2020-10-16 12:30:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:34,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231228698] [2020-10-16 12:30:34,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:34,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:34,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1560477993] [2020-10-16 12:30:34,279 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:34,280 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:34,281 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 12:30:34,281 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:34,282 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:34,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:34,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:34,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:34,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:34,285 INFO L87 Difference]: Start difference. First operand 462 states and 1240 transitions. Second operand 3 states. [2020-10-16 12:30:34,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:34,308 INFO L93 Difference]: Finished difference Result 561 states and 1452 transitions. [2020-10-16 12:30:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:34,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:30:34,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:34,316 INFO L225 Difference]: With dead ends: 561 [2020-10-16 12:30:34,317 INFO L226 Difference]: Without dead ends: 539 [2020-10-16 12:30:34,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-16 12:30:34,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 499. [2020-10-16 12:30:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-10-16 12:30:34,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1332 transitions. [2020-10-16 12:30:34,353 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1332 transitions. Word has length 9 [2020-10-16 12:30:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:34,354 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1332 transitions. [2020-10-16 12:30:34,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1332 transitions. [2020-10-16 12:30:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:30:34,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:34,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:34,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:30:34,356 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:34,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:34,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1857688102, now seen corresponding path program 1 times [2020-10-16 12:30:34,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:34,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051635695] [2020-10-16 12:30:34,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:34,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051635695] [2020-10-16 12:30:34,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:34,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:34,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [602191781] [2020-10-16 12:30:34,434 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:34,435 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:34,437 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 12:30:34,437 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:34,438 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:34,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:34,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:34,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:34,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:34,440 INFO L87 Difference]: Start difference. First operand 499 states and 1332 transitions. Second operand 3 states. [2020-10-16 12:30:34,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:34,462 INFO L93 Difference]: Finished difference Result 539 states and 1435 transitions. [2020-10-16 12:30:34,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:34,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:30:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:34,470 INFO L225 Difference]: With dead ends: 539 [2020-10-16 12:30:34,471 INFO L226 Difference]: Without dead ends: 539 [2020-10-16 12:30:34,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:34,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-16 12:30:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-16 12:30:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-16 12:30:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1435 transitions. [2020-10-16 12:30:34,500 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1435 transitions. Word has length 10 [2020-10-16 12:30:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:34,501 INFO L481 AbstractCegarLoop]: Abstraction has 539 states and 1435 transitions. [2020-10-16 12:30:34,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:34,501 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1435 transitions. [2020-10-16 12:30:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:30:34,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:34,511 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:34,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:30:34,511 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:34,512 INFO L82 PathProgramCache]: Analyzing trace with hash -2118228877, now seen corresponding path program 1 times [2020-10-16 12:30:34,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:34,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361901403] [2020-10-16 12:30:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:34,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361901403] [2020-10-16 12:30:34,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449517490] [2020-10-16 12:30:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:34,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 12:30:34,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:34,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 12:30:34,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 12:30:34,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2104523597] [2020-10-16 12:30:34,762 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:34,765 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:34,767 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-16 12:30:34,768 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:34,768 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:34,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:30:34,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:34,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:30:34,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:34,770 INFO L87 Difference]: Start difference. First operand 539 states and 1435 transitions. Second operand 5 states. [2020-10-16 12:30:34,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:34,906 INFO L93 Difference]: Finished difference Result 1015 states and 2609 transitions. [2020-10-16 12:30:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:34,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:30:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:34,914 INFO L225 Difference]: With dead ends: 1015 [2020-10-16 12:30:34,915 INFO L226 Difference]: Without dead ends: 1015 [2020-10-16 12:30:34,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-10-16 12:30:34,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 739. [2020-10-16 12:30:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-16 12:30:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1976 transitions. [2020-10-16 12:30:34,943 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1976 transitions. Word has length 14 [2020-10-16 12:30:34,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:34,943 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1976 transitions. [2020-10-16 12:30:34,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:30:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1976 transitions. [2020-10-16 12:30:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:30:34,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:34,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:35,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:35,160 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1012308327, now seen corresponding path program 1 times [2020-10-16 12:30:35,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:35,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470521128] [2020-10-16 12:30:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:35,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470521128] [2020-10-16 12:30:35,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:35,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:30:35,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [568100256] [2020-10-16 12:30:35,237 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:35,240 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:35,247 INFO L258 McrAutomatonBuilder]: Finished intersection with 44 states and 69 transitions. [2020-10-16 12:30:35,248 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:35,399 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [8169#(= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 0), 8170#(or (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 0) (not (= (select (select |#pthreadsMutex| |~#m~0.base|) |~#m~0.offset|) 0)))] [2020-10-16 12:30:35,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:35,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:35,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:35,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:35,401 INFO L87 Difference]: Start difference. First operand 739 states and 1976 transitions. Second operand 6 states. [2020-10-16 12:30:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:35,455 INFO L93 Difference]: Finished difference Result 354 states and 799 transitions. [2020-10-16 12:30:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:30:35,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 12:30:35,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:35,458 INFO L225 Difference]: With dead ends: 354 [2020-10-16 12:30:35,459 INFO L226 Difference]: Without dead ends: 354 [2020-10-16 12:30:35,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-16 12:30:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 328. [2020-10-16 12:30:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-10-16 12:30:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 732 transitions. [2020-10-16 12:30:35,471 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 732 transitions. Word has length 17 [2020-10-16 12:30:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:35,471 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 732 transitions. [2020-10-16 12:30:35,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 732 transitions. [2020-10-16 12:30:35,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:35,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:35,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:35,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:30:35,474 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:35,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:35,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1241376286, now seen corresponding path program 1 times [2020-10-16 12:30:35,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:35,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019239323] [2020-10-16 12:30:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:35,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019239323] [2020-10-16 12:30:35,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:35,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:30:35,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1980348311] [2020-10-16 12:30:35,539 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:35,542 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:35,550 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-10-16 12:30:35,550 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:35,677 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9189#(or (= ~top~0 800) (= ~top~0 0))] [2020-10-16 12:30:35,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:30:35,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:35,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:30:35,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:35,678 INFO L87 Difference]: Start difference. First operand 328 states and 732 transitions. Second operand 6 states. [2020-10-16 12:30:35,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:35,777 INFO L93 Difference]: Finished difference Result 543 states and 1185 transitions. [2020-10-16 12:30:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:35,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 12:30:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:35,781 INFO L225 Difference]: With dead ends: 543 [2020-10-16 12:30:35,781 INFO L226 Difference]: Without dead ends: 543 [2020-10-16 12:30:35,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:35,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-16 12:30:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 394. [2020-10-16 12:30:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 12:30:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 878 transitions. [2020-10-16 12:30:35,794 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 878 transitions. Word has length 18 [2020-10-16 12:30:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:35,795 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 878 transitions. [2020-10-16 12:30:35,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:30:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 878 transitions. [2020-10-16 12:30:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:35,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:35,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:35,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:30:35,797 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:35,797 INFO L82 PathProgramCache]: Analyzing trace with hash 624388862, now seen corresponding path program 1 times [2020-10-16 12:30:35,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:35,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803473595] [2020-10-16 12:30:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:36,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803473595] [2020-10-16 12:30:36,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:36,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:36,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [180753688] [2020-10-16 12:30:36,203 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:36,208 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:36,218 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-10-16 12:30:36,219 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:36,256 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-10-16 12:30:36,256 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,312 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-10-16 12:30:36,312 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,385 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-16 12:30:36,385 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,390 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,452 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-10-16 12:30:36,452 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,481 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-16 12:30:36,482 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,483 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,500 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-16 12:30:36,500 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,502 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:36,520 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-10-16 12:30:36,566 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-10-16 12:30:36,576 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [10535#(or (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 0) (and (<= (mod t1Thread1of1ForFork0_~tmp~0 4294967296) 799) (= (select |#memory_int| |~#arr~0.base|) ((as const (Array Int Int)) 0)))), 10536#(= (select |#memory_int| |~#arr~0.base|) ((as const (Array Int Int)) 0))] [2020-10-16 12:30:36,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 12:30:36,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:36,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 12:30:36,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:36,577 INFO L87 Difference]: Start difference. First operand 394 states and 878 transitions. Second operand 12 states. [2020-10-16 12:30:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:37,218 INFO L93 Difference]: Finished difference Result 731 states and 1611 transitions. [2020-10-16 12:30:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 12:30:37,219 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-16 12:30:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:37,223 INFO L225 Difference]: With dead ends: 731 [2020-10-16 12:30:37,224 INFO L226 Difference]: Without dead ends: 731 [2020-10-16 12:30:37,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-10-16 12:30:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2020-10-16 12:30:37,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 547. [2020-10-16 12:30:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-10-16 12:30:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 1259 transitions. [2020-10-16 12:30:37,242 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 1259 transitions. Word has length 22 [2020-10-16 12:30:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:37,243 INFO L481 AbstractCegarLoop]: Abstraction has 547 states and 1259 transitions. [2020-10-16 12:30:37,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 12:30:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 1259 transitions. [2020-10-16 12:30:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:37,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:37,245 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 12:30:37,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:30:37,245 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash 752977068, now seen corresponding path program 2 times [2020-10-16 12:30:37,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:37,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133021069] [2020-10-16 12:30:37,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:37,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133021069] [2020-10-16 12:30:37,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936671812] [2020-10-16 12:30:37,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:37,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 12:30:37,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 12:30:37,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 12:30:37,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:37,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 12:30:37,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 12:30:37,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [947918230] [2020-10-16 12:30:37,435 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:37,438 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:37,442 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-10-16 12:30:37,442 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:37,443 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:37,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:37,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:37,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:37,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:37,444 INFO L87 Difference]: Start difference. First operand 547 states and 1259 transitions. Second operand 7 states. [2020-10-16 12:30:37,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:37,530 INFO L93 Difference]: Finished difference Result 889 states and 1989 transitions. [2020-10-16 12:30:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:37,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:30:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:37,535 INFO L225 Difference]: With dead ends: 889 [2020-10-16 12:30:37,536 INFO L226 Difference]: Without dead ends: 889 [2020-10-16 12:30:37,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:37,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2020-10-16 12:30:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 639. [2020-10-16 12:30:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-10-16 12:30:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 1463 transitions. [2020-10-16 12:30:37,557 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 1463 transitions. Word has length 22 [2020-10-16 12:30:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:37,558 INFO L481 AbstractCegarLoop]: Abstraction has 639 states and 1463 transitions. [2020-10-16 12:30:37,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 1463 transitions. [2020-10-16 12:30:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:37,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:37,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:37,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:37,764 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:37,764 INFO L82 PathProgramCache]: Analyzing trace with hash 434974922, now seen corresponding path program 2 times [2020-10-16 12:30:37,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:37,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354016026] [2020-10-16 12:30:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:38,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354016026] [2020-10-16 12:30:38,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:38,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:30:38,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1133378403] [2020-10-16 12:30:38,130 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:38,134 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:38,143 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 46 transitions. [2020-10-16 12:30:38,143 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:38,182 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:38,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:30:38,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:38,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:30:38,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:30:38,184 INFO L87 Difference]: Start difference. First operand 639 states and 1463 transitions. Second operand 10 states. [2020-10-16 12:30:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:38,803 INFO L93 Difference]: Finished difference Result 966 states and 2164 transitions. [2020-10-16 12:30:38,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 12:30:38,804 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-16 12:30:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:38,809 INFO L225 Difference]: With dead ends: 966 [2020-10-16 12:30:38,810 INFO L226 Difference]: Without dead ends: 966 [2020-10-16 12:30:38,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:30:38,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2020-10-16 12:30:38,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 625. [2020-10-16 12:30:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-16 12:30:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1426 transitions. [2020-10-16 12:30:38,829 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1426 transitions. Word has length 22 [2020-10-16 12:30:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:38,830 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1426 transitions. [2020-10-16 12:30:38,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:30:38,830 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1426 transitions. [2020-10-16 12:30:38,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:30:38,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:38,832 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:38,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:30:38,832 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:38,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:38,832 INFO L82 PathProgramCache]: Analyzing trace with hash -333091595, now seen corresponding path program 1 times [2020-10-16 12:30:38,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:38,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262535011] [2020-10-16 12:30:38,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:38,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262535011] [2020-10-16 12:30:38,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463247736] [2020-10-16 12:30:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:38,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 12:30:38,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 12:30:39,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 12:30:39,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-16 12:30:39,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1040444722] [2020-10-16 12:30:39,002 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:39,006 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:39,016 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-16 12:30:39,017 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:39,112 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [16931#(or (= ~top~0 800) (<= ~top~0 0))] [2020-10-16 12:30:39,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:39,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:39,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:39,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:39,114 INFO L87 Difference]: Start difference. First operand 625 states and 1426 transitions. Second operand 7 states. [2020-10-16 12:30:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:39,216 INFO L93 Difference]: Finished difference Result 869 states and 1934 transitions. [2020-10-16 12:30:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:39,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-16 12:30:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:39,221 INFO L225 Difference]: With dead ends: 869 [2020-10-16 12:30:39,222 INFO L226 Difference]: Without dead ends: 869 [2020-10-16 12:30:39,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-10-16 12:30:39,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 651. [2020-10-16 12:30:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-10-16 12:30:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 1497 transitions. [2020-10-16 12:30:39,241 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 1497 transitions. Word has length 25 [2020-10-16 12:30:39,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:39,242 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 1497 transitions. [2020-10-16 12:30:39,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 1497 transitions. [2020-10-16 12:30:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:30:39,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:39,243 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:39,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-16 12:30:39,458 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:39,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:39,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1736562886, now seen corresponding path program 1 times [2020-10-16 12:30:39,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:39,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736236442] [2020-10-16 12:30:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:39,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:39,528 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:39,556 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:30:39,557 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:30:39,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:30:39,558 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:39,558 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:39,558 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:39,565 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [557] [557] L3-->L977-1: Formula: (and (= |t1Thread1of1ForFork0_push_#in~stack.base_Out1035742622| |~#arr~0.base_In1035742622|) (let ((.cse1 (mod t1Thread1of1ForFork0_~tmp~0_In1035742622 4294967296))) (let ((.cse0 (<= .cse1 2147483647))) (or (and (not .cse0) (= (+ .cse1 (- 4294967296)) |t1Thread1of1ForFork0_push_#in~x_Out1035742622|)) (and (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out1035742622|) .cse0)))) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1035742622 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In1035742622|) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1035742622| |~#arr~0.offset_In1035742622|) (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1035742622 0))) InVars {~#arr~0.offset=|~#arr~0.offset_In1035742622|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1035742622, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In1035742622|, ~#arr~0.base=|~#arr~0.base_In1035742622|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1035742622|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1035742622|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1035742622, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1035742622|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1035742622, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1035742622|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In1035742622|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1035742622|, ~#arr~0.base=|~#arr~0.base_In1035742622|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset] because there is no mapped edge [2020-10-16 12:30:39,569 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [558] [558] L977-2-->L980: Formula: (and (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In1099427565| 2147483648)) (= ~flag~0_Out1099427565 1) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In1099427565|)) (<= |t1Thread1of1ForFork0_#t~ret44_In1099427565| 2147483647)) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In1099427565|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out1099427565|, ~flag~0=~flag~0_Out1099427565} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-10-16 12:30:39,590 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [569] [569] L992-4-->L987-6: Formula: (and (= (+ t2Thread1of1ForFork1_~i~1_Out-8269387 (- 1)) t2Thread1of1ForFork1_~i~1_In-8269387) (= |#pthreadsMutex_Out-8269387| (store |#pthreadsMutex_In-8269387| |~#m~0.base_In-8269387| (store (select |#pthreadsMutex_In-8269387| |~#m~0.base_In-8269387|) |~#m~0.offset_In-8269387| 0))) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In-8269387|))) InVars {#pthreadsMutex=|#pthreadsMutex_In-8269387|, ~#m~0.base=|~#m~0.base_In-8269387|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In-8269387|, ~#m~0.offset=|~#m~0.offset_In-8269387|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-8269387} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-8269387|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out-8269387|, ~#m~0.base=|~#m~0.base_In-8269387|, ~#m~0.offset=|~#m~0.offset_In-8269387|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out-8269387|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-8269387} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-16 12:30:39,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:30:39 BasicIcfg [2020-10-16 12:30:39,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:30:39,649 INFO L168 Benchmark]: Toolchain (without parser) took 11836.14 ms. Allocated memory was 140.0 MB in the beginning and 348.1 MB in the end (delta: 208.1 MB). Free memory was 101.3 MB in the beginning and 310.3 MB in the end (delta: -209.0 MB). Peak memory consumption was 189.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:39,653 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:30:39,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 901.77 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 134.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:39,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.09 ms. Allocated memory is still 202.9 MB. Free memory was 134.2 MB in the beginning and 131.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:39,656 INFO L168 Benchmark]: Boogie Preprocessor took 76.53 ms. Allocated memory is still 202.9 MB. Free memory was 131.5 MB in the beginning and 129.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:39,661 INFO L168 Benchmark]: RCFGBuilder took 912.63 ms. Allocated memory is still 202.9 MB. Free memory was 129.5 MB in the beginning and 96.2 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:39,662 INFO L168 Benchmark]: TraceAbstraction took 9863.08 ms. Allocated memory was 202.9 MB in the beginning and 348.1 MB in the end (delta: 145.2 MB). Free memory was 95.5 MB in the beginning and 310.3 MB in the end (delta: -214.7 MB). Peak memory consumption was 120.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:39,670 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 901.77 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 134.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 76.09 ms. Allocated memory is still 202.9 MB. Free memory was 134.2 MB in the beginning and 131.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.53 ms. Allocated memory is still 202.9 MB. Free memory was 131.5 MB in the beginning and 129.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 912.63 ms. Allocated memory is still 202.9 MB. Free memory was 129.5 MB in the beginning and 96.2 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9863.08 ms. Allocated memory was 202.9 MB in the beginning and 348.1 MB in the end (delta: 145.2 MB). Free memory was 95.5 MB in the beginning and 310.3 MB in the end (delta: -214.7 MB). Peak memory consumption was 120.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3748 VarBasedMoverChecksPositive, 51 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 250 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 140 PlacesBefore, 41 PlacesAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 127 TotalNumberOfCompositions, 10155 MoverChecksTotal - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(800)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1001] 0 pthread_t id1, id2; [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L970] 1 int i; [L971] 1 unsigned int tmp; [L972] 1 i=0 VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L972] COND TRUE 1 i<(800) [L975] 1 tmp = __VERIFIER_nondet_uint() [L942] COND FALSE 1 !(top==(800)) [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L986] 2 int i; [L987] 2 i=0 VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L934] 1 return top; [L949] 1 stack[get_top()] = x [L926] 1 top++ [L952] 1 return 0; [L972] 1 i++ VAL [arr={9:0}, flag=1, m={3:0}, top=1] [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND FALSE 2 !(get_top()==0) [L930] 2 top-- [L934] 2 return top; VAL [arr={9:0}, flag=1, m={3:0}, top=0] [L964] EXPR 2 stack[get_top()] [L964] 2 return stack[get_top()]; [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND TRUE 2 get_top()==0 [L959] 2 return (-2); [L992] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={9:0}, flag=1, m={3:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.5s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 490 SDtfs, 664 SDslu, 1315 SDs, 0 SdLazy, 709 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 154 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1652 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 35176 SizeOfPredicates, 9 NumberOfNonLiveVariables, 517 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 10/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...