/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-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread/stack-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 03:23:16,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 03:23:16,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 03:23:16,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 03:23:16,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 03:23:16,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 03:23:16,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 03:23:16,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 03:23:16,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 03:23:16,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 03:23:16,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 03:23:16,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 03:23:16,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 03:23:16,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 03:23:16,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 03:23:16,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 03:23:16,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 03:23:16,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 03:23:16,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 03:23:16,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 03:23:16,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 03:23:16,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 03:23:16,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 03:23:16,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 03:23:16,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 03:23:16,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 03:23:16,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 03:23:16,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 03:23:16,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 03:23:16,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 03:23:16,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 03:23:16,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 03:23:16,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 03:23:16,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 03:23:16,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 03:23:16,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 03:23:16,195 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-SemanticLooper.epf [2020-10-16 03:23:16,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 03:23:16,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 03:23:16,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 03:23:16,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 03:23:16,221 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 03:23:16,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 03:23:16,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 03:23:16,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 03:23:16,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 03:23:16,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 03:23:16,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 03:23:16,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 03:23:16,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 03:23:16,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 03:23:16,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 03:23:16,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 03:23:16,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 03:23:16,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 03:23:16,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 03:23:16,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 03:23:16,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 03:23:16,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 03:23:16,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 03:23:16,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 03:23:16,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 03:23:16,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 03:23:16,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 03:23:16,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 03:23:16,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 03:23:16,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 03:23:16,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 03:23:16,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 03:23:16,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 03:23:16,545 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 03:23:16,546 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2020-10-16 03:23:16,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e98090b4/197949c76d9f484f8337933d971b365a/FLAG1b83d272a [2020-10-16 03:23:17,161 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 03:23:17,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i [2020-10-16 03:23:17,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e98090b4/197949c76d9f484f8337933d971b365a/FLAG1b83d272a [2020-10-16 03:23:17,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e98090b4/197949c76d9f484f8337933d971b365a [2020-10-16 03:23:17,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 03:23:17,456 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 03:23:17,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 03:23:17,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 03:23:17,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 03:23:17,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:23:17" (1/1) ... [2020-10-16 03:23:17,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd39ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:17, skipping insertion in model container [2020-10-16 03:23:17,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:23:17" (1/1) ... [2020-10-16 03:23:17,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 03:23:17,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 03:23:18,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:23:18,126 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 03:23:18,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:23:18,343 INFO L208 MainTranslator]: Completed translation [2020-10-16 03:23:18,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18 WrapperNode [2020-10-16 03:23:18,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 03:23:18,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 03:23:18,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 03:23:18,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 03:23:18,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 03:23:18,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 03:23:18,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 03:23:18,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 03:23:18,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (1/1) ... [2020-10-16 03:23:18,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 03:23:18,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 03:23:18,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 03:23:18,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 03:23:18,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (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 [2020-10-16 03:23:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 03:23:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 03:23:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 03:23:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 03:23:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 03:23:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 03:23:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 03:23:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 03:23:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 03:23:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 03:23:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 03:23:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 03:23:18,550 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 03:23:19,087 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 03:23:19,087 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-16 03:23:19,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:23:19 BoogieIcfgContainer [2020-10-16 03:23:19,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 03:23:19,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 03:23:19,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 03:23:19,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 03:23:19,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:23:17" (1/3) ... [2020-10-16 03:23:19,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f3bbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:23:19, skipping insertion in model container [2020-10-16 03:23:19,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:18" (2/3) ... [2020-10-16 03:23:19,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f3bbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:23:19, skipping insertion in model container [2020-10-16 03:23:19,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:23:19" (3/3) ... [2020-10-16 03:23:19,100 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-10-16 03:23:19,112 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 03:23:19,122 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 03:23:19,123 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 03:23:19,164 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,165 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,165 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,165 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,166 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,166 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,166 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,167 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,167 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,167 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,167 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,168 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,168 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,169 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,169 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,169 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,169 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,169 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,170 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,170 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,170 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,170 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,171 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,171 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,171 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,171 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,172 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,172 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,172 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,172 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,173 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,173 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,173 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,173 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,174 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,174 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,174 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,174 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,175 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,175 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,175 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,175 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,176 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,176 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,176 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,177 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,177 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,177 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,177 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,178 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,178 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,178 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,178 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,179 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,179 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,179 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,179 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,180 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,180 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,180 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,181 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,181 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,184 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,184 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,185 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,185 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,185 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,186 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,186 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,187 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,187 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,187 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,188 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,188 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,188 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,189 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,189 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,189 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,189 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,190 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,190 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,190 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,190 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,191 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,191 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,191 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,191 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,193 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,193 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,193 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,197 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,197 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,197 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,199 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,200 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,201 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,201 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,206 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,206 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,206 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,207 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,208 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,209 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,218 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,218 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,220 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,221 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,221 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,221 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,221 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:19,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 03:23:19,266 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:23:19,266 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:23:19,267 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:23:19,267 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:23:19,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:23:19,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:23:19,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:23:19,267 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:23:19,285 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 320 flow [2020-10-16 03:23:19,359 INFO L129 PetriNetUnfolder]: 11/149 cut-off events. [2020-10-16 03:23:19,359 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:19,366 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 149 events. 11/149 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 386 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 03:23:19,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 320 flow [2020-10-16 03:23:19,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 137 transitions, 286 flow [2020-10-16 03:23:19,378 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:23:19,381 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 137 transitions, 286 flow [2020-10-16 03:23:19,384 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 137 transitions, 286 flow [2020-10-16 03:23:19,385 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 137 transitions, 286 flow [2020-10-16 03:23:19,439 INFO L129 PetriNetUnfolder]: 10/139 cut-off events. [2020-10-16 03:23:19,439 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:23:19,441 INFO L80 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 139 events. 10/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 305 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 03:23:19,447 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-16 03:23:22,105 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-16 03:23:22,580 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-16 03:23:22,723 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-16 03:23:23,264 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-16 03:23:23,514 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-16 03:23:23,578 INFO L132 LiptonReduction]: Checked pairs total: 10121 [2020-10-16 03:23:23,578 INFO L134 LiptonReduction]: Total number of compositions: 132 [2020-10-16 03:23:23,587 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4212 [2020-10-16 03:23:23,600 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2020-10-16 03:23:23,600 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:23:23,601 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:23,602 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 03:23:23,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:23,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:23,629 INFO L82 PathProgramCache]: Analyzing trace with hash 856269965, now seen corresponding path program 1 times [2020-10-16 03:23:23,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:23,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590836381] [2020-10-16 03:23:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:23,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590836381] [2020-10-16 03:23:23,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:23,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:23:23,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573095014] [2020-10-16 03:23:23,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:23,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:23,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:23,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:23,896 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 281 [2020-10-16 03:23:23,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 82 flow. Second operand 3 states. [2020-10-16 03:23:23,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:23,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 281 [2020-10-16 03:23:23,902 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:23,976 INFO L129 PetriNetUnfolder]: 39/119 cut-off events. [2020-10-16 03:23:23,976 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-16 03:23:23,977 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 401 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. [2020-10-16 03:23:23,984 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 13 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2020-10-16 03:23:23,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 122 flow [2020-10-16 03:23:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2020-10-16 03:23:24,021 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8208778173190985 [2020-10-16 03:23:24,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions. [2020-10-16 03:23:24,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions. [2020-10-16 03:23:24,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:24,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions. [2020-10-16 03:23:24,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:24,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:24,054 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:24,056 INFO L185 Difference]: Start difference. First operand has 35 places, 35 transitions, 82 flow. Second operand 3 states and 692 transitions. [2020-10-16 03:23:24,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 122 flow [2020-10-16 03:23:24,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 114 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 03:23:24,064 INFO L241 Difference]: Finished difference. Result has 35 places, 36 transitions, 96 flow [2020-10-16 03:23:24,067 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, 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} [2020-10-16 03:23:24,069 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2020-10-16 03:23:24,069 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 36 transitions, 96 flow [2020-10-16 03:23:24,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:24,069 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:24,070 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:24,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 03:23:24,070 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:24,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:24,071 INFO L82 PathProgramCache]: Analyzing trace with hash 664979984, now seen corresponding path program 1 times [2020-10-16 03:23:24,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:24,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284189366] [2020-10-16 03:23:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:24,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284189366] [2020-10-16 03:23:24,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:24,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:23:24,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635437591] [2020-10-16 03:23:24,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:24,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:24,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:24,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:24,220 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 281 [2020-10-16 03:23:24,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 96 flow. Second operand 3 states. [2020-10-16 03:23:24,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:24,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 281 [2020-10-16 03:23:24,221 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:24,250 INFO L129 PetriNetUnfolder]: 23/109 cut-off events. [2020-10-16 03:23:24,250 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2020-10-16 03:23:24,251 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 368 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. [2020-10-16 03:23:24,252 INFO L132 encePairwiseOnDemand]: 277/281 looper letters, 6 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2020-10-16 03:23:24,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 116 flow [2020-10-16 03:23:24,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:24,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2020-10-16 03:23:24,256 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8754448398576512 [2020-10-16 03:23:24,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2020-10-16 03:23:24,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2020-10-16 03:23:24,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:24,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2020-10-16 03:23:24,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:24,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:24,260 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:24,260 INFO L185 Difference]: Start difference. First operand has 35 places, 36 transitions, 96 flow. Second operand 3 states and 738 transitions. [2020-10-16 03:23:24,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 116 flow [2020-10-16 03:23:24,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 03:23:24,263 INFO L241 Difference]: Finished difference. Result has 36 places, 37 transitions, 106 flow [2020-10-16 03:23:24,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, 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} [2020-10-16 03:23:24,264 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2020-10-16 03:23:24,264 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 106 flow [2020-10-16 03:23:24,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:24,265 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:24,265 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:24,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 03:23:24,265 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:24,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:24,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1319617273, now seen corresponding path program 1 times [2020-10-16 03:23:24,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:24,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938236987] [2020-10-16 03:23:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:24,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938236987] [2020-10-16 03:23:24,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:24,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:23:24,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795150773] [2020-10-16 03:23:24,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:24,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:24,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:24,376 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 281 [2020-10-16 03:23:24,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 106 flow. Second operand 3 states. [2020-10-16 03:23:24,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:24,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 281 [2020-10-16 03:23:24,377 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:24,401 INFO L129 PetriNetUnfolder]: 25/120 cut-off events. [2020-10-16 03:23:24,402 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2020-10-16 03:23:24,403 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 397 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. [2020-10-16 03:23:24,404 INFO L132 encePairwiseOnDemand]: 278/281 looper letters, 4 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2020-10-16 03:23:24,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 126 flow [2020-10-16 03:23:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2020-10-16 03:23:24,407 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8730723606168446 [2020-10-16 03:23:24,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2020-10-16 03:23:24,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2020-10-16 03:23:24,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:24,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2020-10-16 03:23:24,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:24,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:24,411 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:24,411 INFO L185 Difference]: Start difference. First operand has 36 places, 37 transitions, 106 flow. Second operand 3 states and 736 transitions. [2020-10-16 03:23:24,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 126 flow [2020-10-16 03:23:24,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:23:24,414 INFO L241 Difference]: Finished difference. Result has 38 places, 38 transitions, 124 flow [2020-10-16 03:23:24,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, 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} [2020-10-16 03:23:24,414 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2020-10-16 03:23:24,414 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 124 flow [2020-10-16 03:23:24,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:24,415 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:24,415 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:24,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 03:23:24,415 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1564157375, now seen corresponding path program 1 times [2020-10-16 03:23:24,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:24,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289065692] [2020-10-16 03:23:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:24,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289065692] [2020-10-16 03:23:24,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037441820] [2020-10-16 03:23:24,497 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 [2020-10-16 03:23:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:24,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 03:23:24,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 03:23:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:24,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 03:23:24,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 03:23:24,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735250909] [2020-10-16 03:23:24,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 03:23:24,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:24,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 03:23:24,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 03:23:24,637 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 281 [2020-10-16 03:23:24,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 124 flow. Second operand 7 states. [2020-10-16 03:23:24,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:24,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 281 [2020-10-16 03:23:24,638 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:24,752 INFO L129 PetriNetUnfolder]: 92/267 cut-off events. [2020-10-16 03:23:24,753 INFO L130 PetriNetUnfolder]: For 145/152 co-relation queries the response was YES. [2020-10-16 03:23:24,754 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 1220 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. [2020-10-16 03:23:24,756 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 19 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2020-10-16 03:23:24,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 226 flow [2020-10-16 03:23:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:23:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:23:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1133 transitions. [2020-10-16 03:23:24,761 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8064056939501779 [2020-10-16 03:23:24,761 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1133 transitions. [2020-10-16 03:23:24,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1133 transitions. [2020-10-16 03:23:24,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:24,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1133 transitions. [2020-10-16 03:23:24,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:23:24,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:23:24,767 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:23:24,767 INFO L185 Difference]: Start difference. First operand has 38 places, 38 transitions, 124 flow. Second operand 5 states and 1133 transitions. [2020-10-16 03:23:24,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 226 flow [2020-10-16 03:23:24,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:23:24,771 INFO L241 Difference]: Finished difference. Result has 43 places, 43 transitions, 175 flow [2020-10-16 03:23:24,771 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, 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} [2020-10-16 03:23:24,772 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2020-10-16 03:23:24,772 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 175 flow [2020-10-16 03:23:24,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 03:23:24,772 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:24,772 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:24,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 03:23:24,986 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:24,987 INFO L82 PathProgramCache]: Analyzing trace with hash -632067173, now seen corresponding path program 1 times [2020-10-16 03:23:24,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:24,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607007181] [2020-10-16 03:23:24,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:25,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607007181] [2020-10-16 03:23:25,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:25,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:23:25,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870747531] [2020-10-16 03:23:25,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:25,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:25,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:25,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:25,090 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 281 [2020-10-16 03:23:25,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 175 flow. Second operand 3 states. [2020-10-16 03:23:25,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:25,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 281 [2020-10-16 03:23:25,091 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:25,125 INFO L129 PetriNetUnfolder]: 16/116 cut-off events. [2020-10-16 03:23:25,126 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2020-10-16 03:23:25,126 INFO L80 FinitePrefix]: Finished finitePrefix Result has 220 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 416 event pairs, 0 based on Foata normal form. 14/124 useless extension candidates. Maximal degree in co-relation 180. Up to 18 conditions per place. [2020-10-16 03:23:25,127 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 1 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2020-10-16 03:23:25,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 180 flow [2020-10-16 03:23:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2020-10-16 03:23:25,130 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8018979833926453 [2020-10-16 03:23:25,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2020-10-16 03:23:25,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2020-10-16 03:23:25,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:25,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2020-10-16 03:23:25,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:25,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:25,135 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:25,135 INFO L185 Difference]: Start difference. First operand has 43 places, 43 transitions, 175 flow. Second operand 3 states and 676 transitions. [2020-10-16 03:23:25,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 180 flow [2020-10-16 03:23:25,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:23:25,138 INFO L241 Difference]: Finished difference. Result has 45 places, 42 transitions, 178 flow [2020-10-16 03:23:25,138 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, 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=3, PETRI_FLOW=178, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2020-10-16 03:23:25,139 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2020-10-16 03:23:25,139 INFO L481 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 178 flow [2020-10-16 03:23:25,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:25,139 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:25,139 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:25,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 03:23:25,140 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:25,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:25,140 INFO L82 PathProgramCache]: Analyzing trace with hash -744535742, now seen corresponding path program 1 times [2020-10-16 03:23:25,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:25,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460994425] [2020-10-16 03:23:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:25,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460994425] [2020-10-16 03:23:25,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:25,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 03:23:25,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80124688] [2020-10-16 03:23:25,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:23:25,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:25,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:23:25,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:23:25,199 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 281 [2020-10-16 03:23:25,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 178 flow. Second operand 5 states. [2020-10-16 03:23:25,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:25,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 281 [2020-10-16 03:23:25,201 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:25,288 INFO L129 PetriNetUnfolder]: 21/147 cut-off events. [2020-10-16 03:23:25,288 INFO L130 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2020-10-16 03:23:25,289 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 559 event pairs, 0 based on Foata normal form. 2/141 useless extension candidates. Maximal degree in co-relation 273. Up to 24 conditions per place. [2020-10-16 03:23:25,290 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 18 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2020-10-16 03:23:25,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 260 flow [2020-10-16 03:23:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:23:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:23:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1131 transitions. [2020-10-16 03:23:25,296 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.804982206405694 [2020-10-16 03:23:25,296 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1131 transitions. [2020-10-16 03:23:25,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1131 transitions. [2020-10-16 03:23:25,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:25,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1131 transitions. [2020-10-16 03:23:25,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:23:25,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:23:25,303 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:23:25,303 INFO L185 Difference]: Start difference. First operand has 45 places, 42 transitions, 178 flow. Second operand 5 states and 1131 transitions. [2020-10-16 03:23:25,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 260 flow [2020-10-16 03:23:25,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:23:25,307 INFO L241 Difference]: Finished difference. Result has 50 places, 44 transitions, 217 flow [2020-10-16 03:23:25,307 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, 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} [2020-10-16 03:23:25,307 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2020-10-16 03:23:25,307 INFO L481 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 217 flow [2020-10-16 03:23:25,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:23:25,308 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:25,308 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] [2020-10-16 03:23:25,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 03:23:25,308 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:25,308 INFO L82 PathProgramCache]: Analyzing trace with hash -420412699, now seen corresponding path program 1 times [2020-10-16 03:23:25,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:25,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312065347] [2020-10-16 03:23:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:25,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312065347] [2020-10-16 03:23:25,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:25,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-16 03:23:25,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133271629] [2020-10-16 03:23:25,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 03:23:25,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:25,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 03:23:25,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-16 03:23:25,906 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 281 [2020-10-16 03:23:25,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 217 flow. Second operand 15 states. [2020-10-16 03:23:25,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:25,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 281 [2020-10-16 03:23:25,909 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:27,457 INFO L129 PetriNetUnfolder]: 312/806 cut-off events. [2020-10-16 03:23:27,458 INFO L130 PetriNetUnfolder]: For 648/648 co-relation queries the response was YES. [2020-10-16 03:23:27,462 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 806 events. 312/806 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4610 event pairs, 33 based on Foata normal form. 12/774 useless extension candidates. Maximal degree in co-relation 441. Up to 341 conditions per place. [2020-10-16 03:23:27,470 INFO L132 encePairwiseOnDemand]: 265/281 looper letters, 83 selfloop transitions, 22 changer transitions 0/120 dead transitions. [2020-10-16 03:23:27,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 120 transitions, 664 flow [2020-10-16 03:23:27,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-16 03:23:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-16 03:23:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2342 transitions. [2020-10-16 03:23:27,480 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.49026585723257277 [2020-10-16 03:23:27,481 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2342 transitions. [2020-10-16 03:23:27,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2342 transitions. [2020-10-16 03:23:27,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:27,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2342 transitions. [2020-10-16 03:23:27,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-16 03:23:27,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-16 03:23:27,495 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-16 03:23:27,495 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 217 flow. Second operand 17 states and 2342 transitions. [2020-10-16 03:23:27,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 120 transitions, 664 flow [2020-10-16 03:23:27,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 120 transitions, 636 flow, removed 5 selfloop flow, removed 3 redundant places. [2020-10-16 03:23:27,510 INFO L241 Difference]: Finished difference. Result has 76 places, 65 transitions, 420 flow [2020-10-16 03:23:27,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=420, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2020-10-16 03:23:27,511 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2020-10-16 03:23:27,511 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 420 flow [2020-10-16 03:23:27,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 03:23:27,511 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:27,511 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 03:23:27,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 03:23:27,512 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:27,513 INFO L82 PathProgramCache]: Analyzing trace with hash 934892785, now seen corresponding path program 2 times [2020-10-16 03:23:27,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:27,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509841955] [2020-10-16 03:23:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:27,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:27,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509841955] [2020-10-16 03:23:27,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129638091] [2020-10-16 03:23:27,627 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 [2020-10-16 03:23:27,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 03:23:27,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 03:23:27,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 03:23:27,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 03:23:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:27,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 03:23:27,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 03:23:27,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246720977] [2020-10-16 03:23:27,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 03:23:27,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:27,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 03:23:27,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 03:23:27,781 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 281 [2020-10-16 03:23:27,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 420 flow. Second operand 9 states. [2020-10-16 03:23:27,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:27,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 281 [2020-10-16 03:23:27,783 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:27,896 INFO L129 PetriNetUnfolder]: 36/257 cut-off events. [2020-10-16 03:23:27,896 INFO L130 PetriNetUnfolder]: For 439/439 co-relation queries the response was YES. [2020-10-16 03:23:27,898 INFO L80 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 257 events. 36/257 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1195 event pairs, 1 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 645. Up to 43 conditions per place. [2020-10-16 03:23:27,900 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 38 selfloop transitions, 15 changer transitions 0/83 dead transitions. [2020-10-16 03:23:27,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 648 flow [2020-10-16 03:23:27,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 03:23:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 03:23:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1580 transitions. [2020-10-16 03:23:27,905 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8032536858159633 [2020-10-16 03:23:27,905 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1580 transitions. [2020-10-16 03:23:27,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1580 transitions. [2020-10-16 03:23:27,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:27,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1580 transitions. [2020-10-16 03:23:27,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 03:23:27,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 03:23:27,913 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 03:23:27,913 INFO L185 Difference]: Start difference. First operand has 76 places, 65 transitions, 420 flow. Second operand 7 states and 1580 transitions. [2020-10-16 03:23:27,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 648 flow [2020-10-16 03:23:27,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 644 flow, removed 2 selfloop flow, removed 0 redundant places. [2020-10-16 03:23:27,920 INFO L241 Difference]: Finished difference. Result has 84 places, 69 transitions, 498 flow [2020-10-16 03:23:27,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=498, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2020-10-16 03:23:27,921 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2020-10-16 03:23:27,921 INFO L481 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 498 flow [2020-10-16 03:23:27,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 03:23:27,921 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:27,921 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] [2020-10-16 03:23:28,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 03:23:28,132 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash -388874381, now seen corresponding path program 1 times [2020-10-16 03:23:28,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:28,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686021741] [2020-10-16 03:23:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:23:28,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:23:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:23:28,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:23:28,299 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:23:28,299 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:23:28,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 03:23:28,301 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 03:23:28,302 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 03:23:28,311 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [583] [583] L973-6-->L941-1: Formula: (let ((.cse0 (select |#pthreadsMutex_In-913754000| |~#m~0.base_In-913754000|)) (.cse1 (mod t1Thread1of1ForFork0_~tmp~0_Out-913754000 4294967296))) (and (= (store |#pthreadsMutex_In-913754000| |~#m~0.base_In-913754000| (store .cse0 |~#m~0.offset_In-913754000| 1)) |#pthreadsMutex_Out-913754000|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out-913754000| |~#arr~0.base_In-913754000|) (< t1Thread1of1ForFork0_~i~0_In-913754000 5) (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out-913754000|) (= (select .cse0 |~#m~0.offset_In-913754000|) 0) (= |t1Thread1of1ForFork0_#t~nondet43_In-913754000| t1Thread1of1ForFork0_~tmp~0_Out-913754000) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out-913754000| t1Thread1of1ForFork0_push_~stack.offset_Out-913754000) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out-913754000| t1Thread1of1ForFork0_push_~stack.base_Out-913754000) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-913754000 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out-913754000|) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out-913754000| |~#arr~0.offset_In-913754000|) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out-913754000| 1) (< .cse1 5))) InVars {~#arr~0.offset=|~#arr~0.offset_In-913754000|, #pthreadsMutex=|#pthreadsMutex_In-913754000|, ~#m~0.base=|~#m~0.base_In-913754000|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In-913754000, ~#m~0.offset=|~#m~0.offset_In-913754000|, ~#arr~0.base=|~#arr~0.base_In-913754000|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_In-913754000|} OutVars{t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out-913754000|, #pthreadsMutex=|#pthreadsMutex_Out-913754000|, ~#arr~0.offset=|~#arr~0.offset_In-913754000|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In-913754000, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out-913754000, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out-913754000|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out-913754000|, ~#m~0.base=|~#m~0.base_In-913754000|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out-913754000, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out-913754000|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-913754000, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out-913754000|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out-913754000, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out-913754000, ~#m~0.offset=|~#m~0.offset_In-913754000|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out-913754000|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out-913754000|, t1Thread1of1ForFork0_#t~nondet42=|t1Thread1of1ForFork0_#t~nondet42_Out-913754000|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_Out-913754000|, ~#arr~0.base=|~#arr~0.base_In-913754000|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#t~ret35, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_push_#t~nondet33, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet42, t1Thread1of1ForFork0_#t~nondet43] because there is no mapped edge [2020-10-16 03:23:28,326 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [577] [577] L993-3-->L988-6: Formula: (and (<= |t2Thread1of1ForFork1_#t~ret47_In51909349| 2147483647) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In51909349| 2147483648)) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In51909349|)) (= (+ t2Thread1of1ForFork1_~i~1_In51909349 1) t2Thread1of1ForFork1_~i~1_Out51909349) (= (store |#pthreadsMutex_In51909349| |~#m~0.base_In51909349| (store (select |#pthreadsMutex_In51909349| |~#m~0.base_In51909349|) |~#m~0.offset_In51909349| 0)) |#pthreadsMutex_Out51909349|)) InVars {#pthreadsMutex=|#pthreadsMutex_In51909349|, ~#m~0.base=|~#m~0.base_In51909349|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In51909349|, ~#m~0.offset=|~#m~0.offset_In51909349|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In51909349} OutVars{#pthreadsMutex=|#pthreadsMutex_Out51909349|, ~#m~0.base=|~#m~0.base_In51909349|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out51909349|, ~#m~0.offset=|~#m~0.offset_In51909349|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out51909349|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out51909349} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-16 03:23:28,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:23:28 BasicIcfg [2020-10-16 03:23:28,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 03:23:28,424 INFO L168 Benchmark]: Toolchain (without parser) took 10969.04 ms. Allocated memory was 251.7 MB in the beginning and 491.3 MB in the end (delta: 239.6 MB). Free memory was 204.3 MB in the beginning and 400.6 MB in the end (delta: -196.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:28,429 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 251.7 MB. Free memory was 227.2 MB in the beginning and 226.4 MB in the end (delta: 839.1 kB). Peak memory consumption was 839.1 kB. Max. memory is 14.2 GB. [2020-10-16 03:23:28,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 887.65 ms. Allocated memory was 251.7 MB in the beginning and 315.6 MB in the end (delta: 64.0 MB). Free memory was 203.4 MB in the beginning and 243.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 33.9 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:28,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.16 ms. Allocated memory is still 315.6 MB. Free memory was 243.5 MB in the beginning and 241.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:28,432 INFO L168 Benchmark]: Boogie Preprocessor took 44.15 ms. Allocated memory is still 315.6 MB. Free memory was 241.0 MB in the beginning and 239.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:28,433 INFO L168 Benchmark]: RCFGBuilder took 620.79 ms. Allocated memory is still 315.6 MB. Free memory was 238.5 MB in the beginning and 204.8 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:28,435 INFO L168 Benchmark]: TraceAbstraction took 9330.69 ms. Allocated memory was 315.6 MB in the beginning and 491.3 MB in the end (delta: 175.6 MB). Free memory was 204.8 MB in the beginning and 400.6 MB in the end (delta: -195.9 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 03:23:28,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 251.7 MB. Free memory was 227.2 MB in the beginning and 226.4 MB in the end (delta: 839.1 kB). Peak memory consumption was 839.1 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 887.65 ms. Allocated memory was 251.7 MB in the beginning and 315.6 MB in the end (delta: 64.0 MB). Free memory was 203.4 MB in the beginning and 243.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 33.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 79.16 ms. Allocated memory is still 315.6 MB. Free memory was 243.5 MB in the beginning and 241.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 44.15 ms. Allocated memory is still 315.6 MB. Free memory was 241.0 MB in the beginning and 239.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 620.79 ms. Allocated memory is still 315.6 MB. Free memory was 238.5 MB in the beginning and 204.8 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 9330.69 ms. Allocated memory was 315.6 MB in the beginning and 491.3 MB in the end (delta: 175.6 MB). Free memory was 204.8 MB in the beginning and 400.6 MB in the end (delta: -195.9 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 4839 VarBasedMoverChecksPositive, 90 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 61 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 293 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 133 PlacesBefore, 35 PlacesAfterwards, 137 TransitionsBefore, 35 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 4 ChoiceCompositions, 132 TotalNumberOfCompositions, 10121 MoverChecksTotal - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(5)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1002] 0 pthread_t id1, id2; [L1004] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={9:0}, flag=0, m={10:0}, top=0] [L971] 1 int i; [L972] 1 unsigned int tmp; [L973] 1 i=0 VAL [arr={9:0}, flag=0, m={10:0}, top=0] [L943] COND FALSE 1 !(top==(5)) [L935] 1 return top; [L950] 1 stack[get_top()] = x VAL [arr={9:0}, flag=0, m={10:0}, top=0] [L927] 1 top++ [L953] 1 return 0; [L978] COND FALSE 1 !(push(arr,tmp)==(-1)) [L980] 1 flag=(1) VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L973] 1 i++ VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L1005] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L987] 2 int i; [L988] 2 i=0 VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L988] COND TRUE 2 i<(5) [L991] COND TRUE 2 \read(flag) [L935] 2 return top; [L957] COND FALSE 2 !(get_top()==0) [L931] 2 top-- [L935] 2 return top; [L965] EXPR 2 stack[get_top()] [L965] 2 return stack[get_top()]; [L988] COND TRUE 2 i<(5) [L991] COND TRUE 2 \read(flag) [L935] 2 return top; [L957] COND TRUE 2 get_top()==0 [L960] 2 return (-2); [L993] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={9:0}, flag=1, m={10:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 138 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: 9.0s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 47 SDtfs, 104 SDslu, 61 SDs, 0 SdLazy, 783 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=498occurred 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, 1.0s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 14712 SizeOfPredicates, 5 NumberOfNonLiveVariables, 357 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...