/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 23:59:09,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 23:59:09,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 23:59:09,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 23:59:09,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 23:59:09,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 23:59:09,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 23:59:09,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 23:59:09,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 23:59:09,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 23:59:09,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 23:59:09,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 23:59:09,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 23:59:09,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 23:59:09,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 23:59:09,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 23:59:09,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 23:59:09,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 23:59:09,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 23:59:09,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 23:59:09,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 23:59:09,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 23:59:09,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 23:59:09,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 23:59:09,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 23:59:09,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 23:59:09,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 23:59:09,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 23:59:09,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-15 23:59:10,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 23:59:10,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 23:59:10,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 23:59:10,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 23:59:10,020 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 23:59:10,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 23:59:10,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 23:59:10,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 23:59:10,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 23:59:10,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 23:59:10,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 23:59:10,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 23:59:10,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 23:59:10,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 23:59:10,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 23:59:10,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 23:59:10,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 23:59:10,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 23:59:10,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 23:59:10,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 23:59:10,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 23:59:10,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 23:59:10,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 23:59:10,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 23:59:10,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 23:59:10,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 23:59:10,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 23:59:10,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-15 23:59:10,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 23:59:10,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 23:59:10,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 23:59:10,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 23:59:10,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 23:59:10,413 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 23:59:10,414 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-15 23:59:10,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e01515d/71e304b37ca2490a85d37857b45b1753/FLAGdb895e4f3 [2020-10-15 23:59:11,133 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 23:59:11,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-15 23:59:11,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e01515d/71e304b37ca2490a85d37857b45b1753/FLAGdb895e4f3 [2020-10-15 23:59:11,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e01515d/71e304b37ca2490a85d37857b45b1753 [2020-10-15 23:59:11,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 23:59:11,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 23:59:11,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 23:59:11,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 23:59:11,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 23:59:11,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ee6a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11, skipping insertion in model container [2020-10-15 23:59:11,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 23:59:11,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 23:59:12,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 23:59:12,139 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 23:59:12,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 23:59:12,469 INFO L208 MainTranslator]: Completed translation [2020-10-15 23:59:12,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12 WrapperNode [2020-10-15 23:59:12,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 23:59:12,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 23:59:12,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 23:59:12,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 23:59:12,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 23:59:12,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 23:59:12,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 23:59:12,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 23:59:12,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... [2020-10-15 23:59:12,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 23:59:12,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 23:59:12,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 23:59:12,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 23:59:12,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-15 23:59:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-15 23:59:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-15 23:59:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-15 23:59:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-15 23:59:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 23:59:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 23:59:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 23:59:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 23:59:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 23:59:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 23:59:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 23:59:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 23:59:12,822 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 23:59:13,587 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 23:59:13,587 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-15 23:59:13,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:59:13 BoogieIcfgContainer [2020-10-15 23:59:13,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 23:59:13,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 23:59:13,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 23:59:13,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 23:59:13,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 11:59:11" (1/3) ... [2020-10-15 23:59:13,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25798ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:59:13, skipping insertion in model container [2020-10-15 23:59:13,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:12" (2/3) ... [2020-10-15 23:59:13,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25798ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:59:13, skipping insertion in model container [2020-10-15 23:59:13,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:59:13" (3/3) ... [2020-10-15 23:59:13,600 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-10-15 23:59:13,613 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 23:59:13,623 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 23:59:13,624 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 23:59:13,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,663 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,663 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,664 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,664 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,664 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,665 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,665 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,667 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,667 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,668 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,669 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,669 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,670 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,670 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,671 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,671 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,671 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,672 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,672 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,675 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,675 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,675 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,676 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,678 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,678 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,678 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,678 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,679 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,679 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,679 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,679 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,680 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,685 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,686 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,686 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,686 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,686 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,687 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,687 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,687 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,687 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,688 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,688 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,688 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,688 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,689 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,689 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,689 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,689 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,690 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,690 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,690 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,695 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,695 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,695 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,695 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,697 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,697 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,697 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,697 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,702 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,703 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,703 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,703 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,704 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,704 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,705 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,705 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,705 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,706 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,706 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,706 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,706 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,706 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,708 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,714 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,715 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,715 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,715 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,715 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,716 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,716 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,716 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,716 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,716 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,717 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,717 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,717 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,717 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,717 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,718 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,718 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,718 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,718 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:13,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 23:59:13,772 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 23:59:13,772 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-15 23:59:13,772 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 23:59:13,772 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 23:59:13,773 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 23:59:13,773 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 23:59:13,773 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 23:59:13,773 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 23:59:13,794 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-15 23:59:13,868 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-15 23:59:13,869 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 23:59:13,882 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 383 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. [2020-10-15 23:59:13,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 145 transitions, 312 flow [2020-10-15 23:59:13,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 133 transitions, 278 flow [2020-10-15 23:59:13,893 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 23:59:13,896 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 133 transitions, 278 flow [2020-10-15 23:59:13,899 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 133 transitions, 278 flow [2020-10-15 23:59:13,900 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 129 places, 133 transitions, 278 flow [2020-10-15 23:59:13,949 INFO L129 PetriNetUnfolder]: 10/135 cut-off events. [2020-10-15 23:59:13,949 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 23:59:13,951 INFO L80 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 135 events. 10/135 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 313 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-15 23:59:13,958 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-15 23:59:16,101 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-15 23:59:17,948 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 110 [2020-10-15 23:59:18,155 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 23:59:18,186 INFO L132 LiptonReduction]: Checked pairs total: 9448 [2020-10-15 23:59:18,187 INFO L134 LiptonReduction]: Total number of compositions: 126 [2020-10-15 23:59:18,190 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4299 [2020-10-15 23:59:18,201 INFO L129 PetriNetUnfolder]: 3/18 cut-off events. [2020-10-15 23:59:18,201 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 23:59:18,202 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:18,203 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 23:59:18,204 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:18,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:18,212 INFO L82 PathProgramCache]: Analyzing trace with hash 389783172, now seen corresponding path program 1 times [2020-10-15 23:59:18,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:18,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811168402] [2020-10-15 23:59:18,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:18,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811168402] [2020-10-15 23:59:18,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:18,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:18,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515688335] [2020-10-15 23:59:18,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:18,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:18,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:18,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:18,550 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 271 [2020-10-15 23:59:18,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 82 flow. Second operand 3 states. [2020-10-15 23:59:18,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:18,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 271 [2020-10-15 23:59:18,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:18,646 INFO L129 PetriNetUnfolder]: 39/119 cut-off events. [2020-10-15 23:59:18,647 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-15 23:59:18,648 INFO L80 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 119 events. 39/119 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 407 event pairs, 15 based on Foata normal form. 7/104 useless extension candidates. Maximal degree in co-relation 176. Up to 49 conditions per place. [2020-10-15 23:59:18,651 INFO L132 encePairwiseOnDemand]: 265/271 looper letters, 13 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2020-10-15 23:59:18,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 122 flow [2020-10-15 23:59:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 677 transitions. [2020-10-15 23:59:18,675 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8327183271832719 [2020-10-15 23:59:18,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 677 transitions. [2020-10-15 23:59:18,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 677 transitions. [2020-10-15 23:59:18,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:18,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 677 transitions. [2020-10-15 23:59:18,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:18,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:18,726 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:18,731 INFO L185 Difference]: Start difference. First operand has 35 places, 35 transitions, 82 flow. Second operand 3 states and 677 transitions. [2020-10-15 23:59:18,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 122 flow [2020-10-15 23:59:18,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 114 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-15 23:59:18,741 INFO L241 Difference]: Finished difference. Result has 35 places, 36 transitions, 96 flow [2020-10-15 23:59:18,745 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=36} [2020-10-15 23:59:18,746 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2020-10-15 23:59:18,747 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 36 transitions, 96 flow [2020-10-15 23:59:18,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:18,747 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:18,747 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:18,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 23:59:18,748 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:18,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1428062192, now seen corresponding path program 1 times [2020-10-15 23:59:18,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:18,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519734130] [2020-10-15 23:59:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:18,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519734130] [2020-10-15 23:59:18,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:18,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:18,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106055319] [2020-10-15 23:59:18,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:18,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:18,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:18,873 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 271 [2020-10-15 23:59:18,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 96 flow. Second operand 3 states. [2020-10-15 23:59:18,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:18,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 271 [2020-10-15 23:59:18,877 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:18,953 INFO L129 PetriNetUnfolder]: 23/109 cut-off events. [2020-10-15 23:59:18,953 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2020-10-15 23:59:18,957 INFO L80 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 109 events. 23/109 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 372 event pairs, 1 based on Foata normal form. 3/99 useless extension candidates. Maximal degree in co-relation 131. Up to 24 conditions per place. [2020-10-15 23:59:18,958 INFO L132 encePairwiseOnDemand]: 267/271 looper letters, 6 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2020-10-15 23:59:18,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 116 flow [2020-10-15 23:59:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:18,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2020-10-15 23:59:18,966 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8708487084870848 [2020-10-15 23:59:18,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2020-10-15 23:59:18,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2020-10-15 23:59:18,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:18,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2020-10-15 23:59:18,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:18,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:18,974 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:18,975 INFO L185 Difference]: Start difference. First operand has 35 places, 36 transitions, 96 flow. Second operand 3 states and 708 transitions. [2020-10-15 23:59:18,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 116 flow [2020-10-15 23:59:18,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-15 23:59:18,977 INFO L241 Difference]: Finished difference. Result has 36 places, 37 transitions, 106 flow [2020-10-15 23:59:18,977 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2020-10-15 23:59:18,978 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2020-10-15 23:59:18,979 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 106 flow [2020-10-15 23:59:18,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:18,979 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:18,979 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:18,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 23:59:18,980 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:18,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:18,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1134796551, now seen corresponding path program 1 times [2020-10-15 23:59:18,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:18,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949123816] [2020-10-15 23:59:18,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:19,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949123816] [2020-10-15 23:59:19,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:19,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:19,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445832165] [2020-10-15 23:59:19,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:19,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:19,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:19,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:19,090 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 271 [2020-10-15 23:59:19,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 106 flow. Second operand 3 states. [2020-10-15 23:59:19,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:19,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 271 [2020-10-15 23:59:19,091 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:19,120 INFO L129 PetriNetUnfolder]: 25/120 cut-off events. [2020-10-15 23:59:19,120 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2020-10-15 23:59:19,121 INFO L80 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 120 events. 25/120 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 392 event pairs, 2 based on Foata normal form. 3/97 useless extension candidates. Maximal degree in co-relation 162. Up to 24 conditions per place. [2020-10-15 23:59:19,122 INFO L132 encePairwiseOnDemand]: 268/271 looper letters, 4 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2020-10-15 23:59:19,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 126 flow [2020-10-15 23:59:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2020-10-15 23:59:19,130 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8683886838868389 [2020-10-15 23:59:19,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2020-10-15 23:59:19,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2020-10-15 23:59:19,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:19,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2020-10-15 23:59:19,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:19,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:19,136 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:19,136 INFO L185 Difference]: Start difference. First operand has 36 places, 37 transitions, 106 flow. Second operand 3 states and 706 transitions. [2020-10-15 23:59:19,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 126 flow [2020-10-15 23:59:19,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:19,139 INFO L241 Difference]: Finished difference. Result has 38 places, 38 transitions, 124 flow [2020-10-15 23:59:19,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2020-10-15 23:59:19,139 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2020-10-15 23:59:19,140 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 124 flow [2020-10-15 23:59:19,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:19,140 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:19,140 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:19,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 23:59:19,141 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:19,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:19,141 INFO L82 PathProgramCache]: Analyzing trace with hash -2050606007, now seen corresponding path program 1 times [2020-10-15 23:59:19,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:19,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717915030] [2020-10-15 23:59:19,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:19,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717915030] [2020-10-15 23:59:19,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845971626] [2020-10-15 23:59:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-10-15 23:59:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:19,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 23:59:19,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:19,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:19,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-15 23:59:19,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885715911] [2020-10-15 23:59:19,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 23:59:19,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 23:59:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 23:59:19,371 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 271 [2020-10-15 23:59:19,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 124 flow. Second operand 7 states. [2020-10-15 23:59:19,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:19,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 271 [2020-10-15 23:59:19,373 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:19,524 INFO L129 PetriNetUnfolder]: 92/267 cut-off events. [2020-10-15 23:59:19,524 INFO L130 PetriNetUnfolder]: For 145/152 co-relation queries the response was YES. [2020-10-15 23:59:19,526 INFO L80 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 267 events. 92/267 cut-off events. For 145/152 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1223 event pairs, 10 based on Foata normal form. 6/219 useless extension candidates. Maximal degree in co-relation 527. Up to 67 conditions per place. [2020-10-15 23:59:19,529 INFO L132 encePairwiseOnDemand]: 265/271 looper letters, 19 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2020-10-15 23:59:19,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 226 flow [2020-10-15 23:59:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 23:59:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-15 23:59:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1103 transitions. [2020-10-15 23:59:19,535 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8140221402214022 [2020-10-15 23:59:19,535 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1103 transitions. [2020-10-15 23:59:19,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1103 transitions. [2020-10-15 23:59:19,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:19,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1103 transitions. [2020-10-15 23:59:19,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-15 23:59:19,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-15 23:59:19,544 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-15 23:59:19,544 INFO L185 Difference]: Start difference. First operand has 38 places, 38 transitions, 124 flow. Second operand 5 states and 1103 transitions. [2020-10-15 23:59:19,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 226 flow [2020-10-15 23:59:19,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:19,547 INFO L241 Difference]: Finished difference. Result has 43 places, 43 transitions, 175 flow [2020-10-15 23:59:19,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2020-10-15 23:59:19,548 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2020-10-15 23:59:19,548 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 175 flow [2020-10-15 23:59:19,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 23:59:19,549 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:19,549 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:19,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:19,764 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2094011922, now seen corresponding path program 1 times [2020-10-15 23:59:19,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:19,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909080396] [2020-10-15 23:59:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:19,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909080396] [2020-10-15 23:59:19,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:19,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 23:59:19,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325590677] [2020-10-15 23:59:19,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 23:59:19,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:19,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 23:59:19,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 23:59:19,911 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 271 [2020-10-15 23:59:19,912 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 175 flow. Second operand 4 states. [2020-10-15 23:59:19,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:19,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 271 [2020-10-15 23:59:19,913 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:19,976 INFO L129 PetriNetUnfolder]: 16/116 cut-off events. [2020-10-15 23:59:19,976 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2020-10-15 23:59:19,977 INFO L80 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 116 events. 16/116 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 410 event pairs, 0 based on Foata normal form. 22/132 useless extension candidates. Maximal degree in co-relation 188. Up to 14 conditions per place. [2020-10-15 23:59:19,978 INFO L132 encePairwiseOnDemand]: 265/271 looper letters, 4 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2020-10-15 23:59:19,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 186 flow [2020-10-15 23:59:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 23:59:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-15 23:59:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 829 transitions. [2020-10-15 23:59:19,982 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.764760147601476 [2020-10-15 23:59:19,982 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 829 transitions. [2020-10-15 23:59:19,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 829 transitions. [2020-10-15 23:59:19,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:19,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 829 transitions. [2020-10-15 23:59:19,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-15 23:59:19,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-15 23:59:19,989 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-15 23:59:19,989 INFO L185 Difference]: Start difference. First operand has 43 places, 43 transitions, 175 flow. Second operand 4 states and 829 transitions. [2020-10-15 23:59:19,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 186 flow [2020-10-15 23:59:19,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-15 23:59:19,992 INFO L241 Difference]: Finished difference. Result has 46 places, 42 transitions, 178 flow [2020-10-15 23:59:19,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2020-10-15 23:59:19,993 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2020-10-15 23:59:19,993 INFO L481 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 178 flow [2020-10-15 23:59:19,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 23:59:19,994 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:19,994 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:19,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 23:59:19,994 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:19,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:19,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1337808867, now seen corresponding path program 1 times [2020-10-15 23:59:19,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:19,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112669746] [2020-10-15 23:59:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:20,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112669746] [2020-10-15 23:59:20,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:20,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 23:59:20,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320559986] [2020-10-15 23:59:20,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 23:59:20,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:20,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 23:59:20,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 23:59:20,078 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 271 [2020-10-15 23:59:20,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 178 flow. Second operand 5 states. [2020-10-15 23:59:20,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:20,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 271 [2020-10-15 23:59:20,080 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:20,219 INFO L129 PetriNetUnfolder]: 21/147 cut-off events. [2020-10-15 23:59:20,219 INFO L130 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2020-10-15 23:59:20,220 INFO L80 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 147 events. 21/147 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 560 event pairs, 0 based on Foata normal form. 2/141 useless extension candidates. Maximal degree in co-relation 273. Up to 22 conditions per place. [2020-10-15 23:59:20,224 INFO L132 encePairwiseOnDemand]: 265/271 looper letters, 18 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2020-10-15 23:59:20,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 260 flow [2020-10-15 23:59:20,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 23:59:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-15 23:59:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1101 transitions. [2020-10-15 23:59:20,229 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8125461254612546 [2020-10-15 23:59:20,229 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1101 transitions. [2020-10-15 23:59:20,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1101 transitions. [2020-10-15 23:59:20,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:20,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1101 transitions. [2020-10-15 23:59:20,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-15 23:59:20,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-15 23:59:20,249 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-15 23:59:20,249 INFO L185 Difference]: Start difference. First operand has 46 places, 42 transitions, 178 flow. Second operand 5 states and 1101 transitions. [2020-10-15 23:59:20,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 260 flow [2020-10-15 23:59:20,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-15 23:59:20,263 INFO L241 Difference]: Finished difference. Result has 50 places, 44 transitions, 217 flow [2020-10-15 23:59:20,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2020-10-15 23:59:20,264 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2020-10-15 23:59:20,264 INFO L481 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 217 flow [2020-10-15 23:59:20,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 23:59:20,264 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:20,265 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:20,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 23:59:20,265 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:20,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:20,266 INFO L82 PathProgramCache]: Analyzing trace with hash -264844735, now seen corresponding path program 1 times [2020-10-15 23:59:20,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:20,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979408049] [2020-10-15 23:59:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:20,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:20,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979408049] [2020-10-15 23:59:20,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:20,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 23:59:20,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378290277] [2020-10-15 23:59:20,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 23:59:20,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:20,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 23:59:20,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 23:59:20,782 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 271 [2020-10-15 23:59:20,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 217 flow. Second operand 9 states. [2020-10-15 23:59:20,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:20,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 271 [2020-10-15 23:59:20,784 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:21,350 INFO L129 PetriNetUnfolder]: 221/701 cut-off events. [2020-10-15 23:59:21,350 INFO L130 PetriNetUnfolder]: For 550/550 co-relation queries the response was YES. [2020-10-15 23:59:21,354 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 701 events. 221/701 cut-off events. For 550/550 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4140 event pairs, 26 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 380. Up to 201 conditions per place. [2020-10-15 23:59:21,360 INFO L132 encePairwiseOnDemand]: 263/271 looper letters, 48 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2020-10-15 23:59:21,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 83 transitions, 454 flow [2020-10-15 23:59:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 23:59:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-15 23:59:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1286 transitions. [2020-10-15 23:59:21,368 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5931734317343174 [2020-10-15 23:59:21,368 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1286 transitions. [2020-10-15 23:59:21,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1286 transitions. [2020-10-15 23:59:21,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:21,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1286 transitions. [2020-10-15 23:59:21,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-15 23:59:21,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-15 23:59:21,380 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-15 23:59:21,380 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 217 flow. Second operand 8 states and 1286 transitions. [2020-10-15 23:59:21,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 83 transitions, 454 flow [2020-10-15 23:59:21,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 435 flow, removed 4 selfloop flow, removed 3 redundant places. [2020-10-15 23:59:21,385 INFO L241 Difference]: Finished difference. Result has 59 places, 52 transitions, 269 flow [2020-10-15 23:59:21,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=269, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2020-10-15 23:59:21,386 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 24 predicate places. [2020-10-15 23:59:21,386 INFO L481 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 269 flow [2020-10-15 23:59:21,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 23:59:21,387 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:21,387 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-15 23:59:21,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 23:59:21,387 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:21,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:21,388 INFO L82 PathProgramCache]: Analyzing trace with hash -619887346, now seen corresponding path program 2 times [2020-10-15 23:59:21,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:21,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386445585] [2020-10-15 23:59:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:21,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386445585] [2020-10-15 23:59:21,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380572643] [2020-10-15 23:59:21,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-10-15 23:59:21,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 23:59:21,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 23:59:21,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 23:59:21,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:21,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:21,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-15 23:59:21,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916854829] [2020-10-15 23:59:21,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 23:59:21,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:21,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 23:59:21,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 23:59:21,612 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 271 [2020-10-15 23:59:21,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 269 flow. Second operand 9 states. [2020-10-15 23:59:21,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:21,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 271 [2020-10-15 23:59:21,614 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:21,766 INFO L129 PetriNetUnfolder]: 37/245 cut-off events. [2020-10-15 23:59:21,766 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2020-10-15 23:59:21,768 INFO L80 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 245 events. 37/245 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1117 event pairs, 1 based on Foata normal form. 2/230 useless extension candidates. Maximal degree in co-relation 504. Up to 46 conditions per place. [2020-10-15 23:59:21,770 INFO L132 encePairwiseOnDemand]: 265/271 looper letters, 27 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2020-10-15 23:59:21,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 411 flow [2020-10-15 23:59:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 23:59:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-15 23:59:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1538 transitions. [2020-10-15 23:59:21,777 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8107538218239325 [2020-10-15 23:59:21,777 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1538 transitions. [2020-10-15 23:59:21,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1538 transitions. [2020-10-15 23:59:21,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:21,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1538 transitions. [2020-10-15 23:59:21,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-15 23:59:21,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-15 23:59:21,787 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-15 23:59:21,787 INFO L185 Difference]: Start difference. First operand has 59 places, 52 transitions, 269 flow. Second operand 7 states and 1538 transitions. [2020-10-15 23:59:21,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 411 flow [2020-10-15 23:59:21,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 67 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-15 23:59:21,791 INFO L241 Difference]: Finished difference. Result has 67 places, 56 transitions, 330 flow [2020-10-15 23:59:21,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=330, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2020-10-15 23:59:21,792 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 32 predicate places. [2020-10-15 23:59:21,792 INFO L481 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 330 flow [2020-10-15 23:59:21,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 23:59:21,792 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:21,792 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-15 23:59:22,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:22,007 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:22,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:22,007 INFO L82 PathProgramCache]: Analyzing trace with hash -853595516, now seen corresponding path program 1 times [2020-10-15 23:59:22,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:22,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914791683] [2020-10-15 23:59:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 23:59:22,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 23:59:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 23:59:22,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 23:59:22,121 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 23:59:22,121 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 23:59:22,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 23:59:22,123 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 23:59:22,123 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 23:59:22,129 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [557] [557] L4-->L939: Formula: (and (= |~#arr~0.offset_In-1496236623| |t1Thread1of1ForFork0_push_#in~stack.offset_Out-1496236623|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out-1496236623| |~#arr~0.base_In-1496236623|) (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In-1496236623 4294967296))) (let ((.cse1 (<= .cse0 2147483647))) (or (and (= (+ .cse0 (- 4294967296)) |t1Thread1of1ForFork0_push_#in~x_Out-1496236623|) (not .cse1)) (and .cse1 (= .cse0 |t1Thread1of1ForFork0_push_#in~x_Out-1496236623|))))) (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_In-1496236623 0))) InVars {~#arr~0.offset=|~#arr~0.offset_In-1496236623|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In-1496236623, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-1496236623, ~#arr~0.base=|~#arr~0.base_In-1496236623|} OutVars{t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out-1496236623|, ~#arr~0.offset=|~#arr~0.offset_In-1496236623|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out-1496236623, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out-1496236623|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out-1496236623|, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out-1496236623|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out-1496236623, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In-1496236623, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out-1496236623|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-1496236623, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out-1496236623, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out-1496236623|, ~#arr~0.base=|~#arr~0.base_In-1496236623|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_#t~nondet33, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#t~ret35, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset] because there is no mapped edge [2020-10-15 23:59:22,140 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [570] [570] L991-3-->L986-6: Formula: (and (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In2124440938|)) (= t2Thread1of1ForFork1_~i~1_Out2124440938 (+ t2Thread1of1ForFork1_~i~1_In2124440938 1)) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In2124440938| 2147483648)) (<= |t2Thread1of1ForFork1_#t~ret47_In2124440938| 2147483647) (= |#pthreadsMutex_Out2124440938| (store |#pthreadsMutex_In2124440938| |~#m~0.base_In2124440938| (store (select |#pthreadsMutex_In2124440938| |~#m~0.base_In2124440938|) |~#m~0.offset_In2124440938| 0)))) InVars {#pthreadsMutex=|#pthreadsMutex_In2124440938|, ~#m~0.base=|~#m~0.base_In2124440938|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In2124440938|, ~#m~0.offset=|~#m~0.offset_In2124440938|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In2124440938} OutVars{#pthreadsMutex=|#pthreadsMutex_Out2124440938|, ~#m~0.base=|~#m~0.base_In2124440938|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out2124440938|, ~#m~0.offset=|~#m~0.offset_In2124440938|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out2124440938|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out2124440938} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-15 23:59:22,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 11:59:22 BasicIcfg [2020-10-15 23:59:22,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 23:59:22,195 INFO L168 Benchmark]: Toolchain (without parser) took 10789.33 ms. Allocated memory was 248.0 MB in the beginning and 487.1 MB in the end (delta: 239.1 MB). Free memory was 202.5 MB in the beginning and 407.9 MB in the end (delta: -205.4 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:22,196 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 23:59:22,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1063.57 ms. Allocated memory was 248.0 MB in the beginning and 305.1 MB in the end (delta: 57.1 MB). Free memory was 202.5 MB in the beginning and 230.6 MB in the end (delta: -28.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:22,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.10 ms. Allocated memory is still 305.1 MB. Free memory was 230.6 MB in the beginning and 228.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:22,198 INFO L168 Benchmark]: Boogie Preprocessor took 85.89 ms. Allocated memory is still 305.1 MB. Free memory was 228.1 MB in the beginning and 225.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:22,199 INFO L168 Benchmark]: RCFGBuilder took 887.41 ms. Allocated memory is still 305.1 MB. Free memory was 225.6 MB in the beginning and 191.2 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:22,200 INFO L168 Benchmark]: TraceAbstraction took 8600.54 ms. Allocated memory was 305.1 MB in the beginning and 487.1 MB in the end (delta: 181.9 MB). Free memory was 191.2 MB in the beginning and 407.9 MB in the end (delta: -216.7 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 23:59:22,204 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1063.57 ms. Allocated memory was 248.0 MB in the beginning and 305.1 MB in the end (delta: 57.1 MB). Free memory was 202.5 MB in the beginning and 230.6 MB in the end (delta: -28.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 144.10 ms. Allocated memory is still 305.1 MB. Free memory was 230.6 MB in the beginning and 228.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 85.89 ms. Allocated memory is still 305.1 MB. Free memory was 228.1 MB in the beginning and 225.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 887.41 ms. Allocated memory is still 305.1 MB. Free memory was 225.6 MB in the beginning and 191.2 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 8600.54 ms. Allocated memory was 305.1 MB in the beginning and 487.1 MB in the end (delta: 181.9 MB). Free memory was 191.2 MB in the beginning and 407.9 MB in the end (delta: -216.7 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4763 VarBasedMoverChecksPositive, 91 VarBasedMoverChecksNegative, 34 SemBasedMoverChecksPositive, 57 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 286 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 129 PlacesBefore, 35 PlacesAfterwards, 133 TransitionsBefore, 35 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 4 ChoiceCompositions, 126 TotalNumberOfCompositions, 9448 MoverChecksTotal - CounterExampleResult [Line: 921]: 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[(400)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1000] 0 pthread_t id1, id2; [L1002] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={5:0}, flag=0, m={2:0}, top=0] [L969] 1 int i; [L970] 1 unsigned int tmp; [L971] 1 i=0 VAL [arr={5:0}, flag=0, m={2:0}, top=0] [L971] COND TRUE 1 i<(400) [L974] 1 tmp = __VERIFIER_nondet_uint() [L941] COND FALSE 1 !(top==(400)) [L933] 1 return top; [L948] 1 stack[get_top()] = x VAL [arr={5:0}, flag=0, m={2:0}, top=0] [L925] 1 top++ [L951] 1 return 0; [L976] COND FALSE 1 !(push(arr,tmp)==(-1)) [L978] 1 flag=(1) VAL [arr={5:0}, flag=1, m={2:0}, top=1] [L1003] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={5:0}, flag=1, m={2:0}, top=1] [L985] 2 int i; [L986] 2 i=0 VAL [arr={5:0}, flag=1, m={2:0}, top=1] [L971] 1 i++ VAL [arr={5:0}, flag=1, m={2:0}, top=1] [L986] COND TRUE 2 i<(400) [L989] COND TRUE 2 \read(flag) [L933] 2 return top; [L955] COND FALSE 2 !(get_top()==0) VAL [arr={5:0}, flag=1, m={2:0}, top=1] [L929] 2 top-- [L933] 2 return top; [L963] EXPR 2 stack[get_top()] [L963] 2 return stack[get_top()]; [L986] COND TRUE 2 i<(400) [L989] COND TRUE 2 \read(flag) [L933] 2 return top; [L955] COND TRUE 2 get_top()==0 [L958] 2 return (-2); [L991] COND TRUE 2 !(pop(arr)!=(-2)) [L921] 2 __VERIFIER_error() VAL [arr={5:0}, flag=1, m={2:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 8.3s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 48 SDtfs, 78 SDslu, 55 SDs, 0 SdLazy, 319 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 18432 SizeOfPredicates, 5 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 6/34 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...