/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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:53:06,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:53:06,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:53:06,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:53:06,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:53:06,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:53:06,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:53:06,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:53:06,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:53:06,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:53:06,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:53:06,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:53:06,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:53:06,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:53:06,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:53:06,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:53:06,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:53:06,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:53:06,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:53:06,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:53:06,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:53:06,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:53:06,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:53:06,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:53:06,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 16:53:06,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 16:53:06,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 16:53:06,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 16:53:06,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 16:53:06,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 16:53:06,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:53:06,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:53:06,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:53:06,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:53:06,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:53:06,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:53:06,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:53:06,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:53:06,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:53:06,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:53:06,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:53:06,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 16:53:06,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:53:06,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:53:06,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:53:06,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:53:06,215 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:53:06,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:53:06,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:53:06,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:53:06,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:53:06,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:53:06,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:53:06,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:53:06,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:53:06,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:53:06,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:53:06,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:53:06,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:53:06,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:53:06,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:53:06,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:53:06,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:53:06,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:53:06,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:53:06,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:53:06,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:53:06,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:53:06,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:53:06,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 16:53:06,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 16:53:06,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:53:06,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:53:06,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:53:06,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:53:06,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:53:06,580 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:53:06,581 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-10-11 16:53:06,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61784f86b/154682faf8be43b3b9c2d4bcd27cf24d/FLAGf3e85d433 [2020-10-11 16:53:07,185 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:53:07,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-10-11 16:53:07,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61784f86b/154682faf8be43b3b9c2d4bcd27cf24d/FLAGf3e85d433 [2020-10-11 16:53:07,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61784f86b/154682faf8be43b3b9c2d4bcd27cf24d [2020-10-11 16:53:07,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:53:07,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:53:07,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:53:07,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:53:07,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:53:07,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:53:07" (1/1) ... [2020-10-11 16:53:07,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770e32df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:07, skipping insertion in model container [2020-10-11 16:53:07,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:53:07" (1/1) ... [2020-10-11 16:53:07,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:53:07,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:53:08,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:53:08,176 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:53:08,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:53:08,353 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:53:08,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08 WrapperNode [2020-10-11 16:53:08,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:53:08,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:53:08,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:53:08,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:53:08,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:53:08,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:53:08,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:53:08,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:53:08,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (1/1) ... [2020-10-11 16:53:08,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:53:08,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:53:08,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:53:08,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:53:08,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (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 [2020-10-11 16:53:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:53:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:53:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:53:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-11 16:53:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-11 16:53:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-11 16:53:08,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-11 16:53:08,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:53:08,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 16:53:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 16:53:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:53:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:53:08,559 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 16:53:08,921 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:53:08,921 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-11 16:53:08,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:53:08 BoogieIcfgContainer [2020-10-11 16:53:08,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:53:08,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:53:08,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:53:08,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:53:08,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:53:07" (1/3) ... [2020-10-11 16:53:08,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e626441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:53:08, skipping insertion in model container [2020-10-11 16:53:08,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:08" (2/3) ... [2020-10-11 16:53:08,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e626441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:53:08, skipping insertion in model container [2020-10-11 16:53:08,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:53:08" (3/3) ... [2020-10-11 16:53:08,934 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-10-11 16:53:08,950 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:53:08,967 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 16:53:08,968 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:53:09,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,019 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,019 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,020 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,021 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,022 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,022 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,022 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,023 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,023 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,025 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,030 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,031 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,031 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,031 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,031 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,032 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,032 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,038 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,040 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:53:09,063 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 16:53:09,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:53:09,086 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 16:53:09,086 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:53:09,086 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:53:09,086 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:53:09,087 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:53:09,087 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:53:09,087 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:53:09,102 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-10-11 16:53:09,156 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-10-11 16:53:09,156 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:53:09,162 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-10-11 16:53:09,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 204 flow [2020-10-11 16:53:09,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 80 transitions, 178 flow [2020-10-11 16:53:09,199 INFO L129 PetriNetUnfolder]: 5/81 cut-off events. [2020-10-11 16:53:09,200 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:53:09,200 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:09,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:09,202 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:09,208 INFO L82 PathProgramCache]: Analyzing trace with hash 756901473, now seen corresponding path program 1 times [2020-10-11 16:53:09,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:09,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480210398] [2020-10-11 16:53:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:09,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480210398] [2020-10-11 16:53:09,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:53:09,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 16:53:09,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720058925] [2020-10-11 16:53:09,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 16:53:09,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:09,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 16:53:09,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 16:53:09,532 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 91 [2020-10-11 16:53:09,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 178 flow. Second operand 2 states. [2020-10-11 16:53:09,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:09,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 91 [2020-10-11 16:53:09,536 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:09,572 INFO L129 PetriNetUnfolder]: 3/80 cut-off events. [2020-10-11 16:53:09,572 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:53:09,574 INFO L80 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 80 events. 3/80 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 88. Up to 3 conditions per place. [2020-10-11 16:53:09,575 INFO L132 encePairwiseOnDemand]: 89/91 looper letters, 0 selfloop transitions, 0 changer transitions 0/78 dead transitions. [2020-10-11 16:53:09,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 78 transitions, 174 flow [2020-10-11 16:53:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 16:53:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-11 16:53:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 178 transitions. [2020-10-11 16:53:09,615 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.978021978021978 [2020-10-11 16:53:09,616 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 178 transitions. [2020-10-11 16:53:09,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 178 transitions. [2020-10-11 16:53:09,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:09,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 178 transitions. [2020-10-11 16:53:09,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-11 16:53:09,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-11 16:53:09,630 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-11 16:53:09,632 INFO L185 Difference]: Start difference. First operand has 81 places, 80 transitions, 178 flow. Second operand 2 states and 178 transitions. [2020-10-11 16:53:09,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 78 transitions, 174 flow [2020-10-11 16:53:09,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 78 transitions, 162 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 16:53:09,642 INFO L241 Difference]: Finished difference. Result has 78 places, 78 transitions, 162 flow [2020-10-11 16:53:09,645 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=162, PETRI_PLACES=78, PETRI_TRANSITIONS=78} [2020-10-11 16:53:09,646 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, -3 predicate places. [2020-10-11 16:53:09,647 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 78 transitions, 162 flow [2020-10-11 16:53:09,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 16:53:09,647 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:09,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:09,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:53:09,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:09,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:09,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1107056639, now seen corresponding path program 1 times [2020-10-11 16:53:09,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:09,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288416648] [2020-10-11 16:53:09,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:09,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288416648] [2020-10-11 16:53:09,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:53:09,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:53:09,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921578258] [2020-10-11 16:53:09,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:53:09,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:09,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:53:09,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:53:09,876 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2020-10-11 16:53:09,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 162 flow. Second operand 3 states. [2020-10-11 16:53:09,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:09,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2020-10-11 16:53:09,877 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:09,899 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-11 16:53:09,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 16:53:09,900 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 84. Up to 6 conditions per place. [2020-10-11 16:53:09,900 INFO L132 encePairwiseOnDemand]: 87/91 looper letters, 4 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2020-10-11 16:53:09,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 166 flow [2020-10-11 16:53:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:53:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:53:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2020-10-11 16:53:09,904 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9084249084249084 [2020-10-11 16:53:09,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2020-10-11 16:53:09,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2020-10-11 16:53:09,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:09,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2020-10-11 16:53:09,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:53:09,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:53:09,910 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:53:09,910 INFO L185 Difference]: Start difference. First operand has 78 places, 78 transitions, 162 flow. Second operand 3 states and 248 transitions. [2020-10-11 16:53:09,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 166 flow [2020-10-11 16:53:09,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 74 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-11 16:53:09,914 INFO L241 Difference]: Finished difference. Result has 78 places, 74 transitions, 162 flow [2020-10-11 16:53:09,914 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2020-10-11 16:53:09,915 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, -3 predicate places. [2020-10-11 16:53:09,915 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 162 flow [2020-10-11 16:53:09,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:53:09,915 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:09,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:09,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:53:09,916 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:09,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:09,916 INFO L82 PathProgramCache]: Analyzing trace with hash -992694305, now seen corresponding path program 1 times [2020-10-11 16:53:09,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:09,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168834937] [2020-10-11 16:53:09,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:10,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168834937] [2020-10-11 16:53:10,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:53:10,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 16:53:10,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429260435] [2020-10-11 16:53:10,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:53:10,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:10,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:53:10,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:53:11,705 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2020-10-11 16:53:11,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 162 flow. Second operand 7 states. [2020-10-11 16:53:11,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:11,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2020-10-11 16:53:11,707 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:11,837 INFO L129 PetriNetUnfolder]: 7/100 cut-off events. [2020-10-11 16:53:11,838 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:53:11,838 INFO L80 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 100 events. 7/100 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 138. Up to 8 conditions per place. [2020-10-11 16:53:11,839 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 12 selfloop transitions, 6 changer transitions 2/78 dead transitions. [2020-10-11 16:53:11,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 211 flow [2020-10-11 16:53:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 16:53:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 16:53:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 504 transitions. [2020-10-11 16:53:11,851 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7912087912087912 [2020-10-11 16:53:11,851 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 504 transitions. [2020-10-11 16:53:11,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 504 transitions. [2020-10-11 16:53:11,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:11,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 504 transitions. [2020-10-11 16:53:11,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 16:53:11,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 16:53:11,857 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 16:53:11,857 INFO L185 Difference]: Start difference. First operand has 78 places, 74 transitions, 162 flow. Second operand 7 states and 504 transitions. [2020-10-11 16:53:11,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 211 flow [2020-10-11 16:53:11,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 78 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 16:53:11,861 INFO L241 Difference]: Finished difference. Result has 82 places, 73 transitions, 167 flow [2020-10-11 16:53:11,861 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=167, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2020-10-11 16:53:11,862 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2020-10-11 16:53:11,862 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 167 flow [2020-10-11 16:53:11,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:53:11,862 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:11,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:11,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:53:11,863 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:11,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1618789079, now seen corresponding path program 2 times [2020-10-11 16:53:11,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:11,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221449535] [2020-10-11 16:53:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:11,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221449535] [2020-10-11 16:53:11,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:53:11,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 16:53:11,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543996430] [2020-10-11 16:53:11,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 16:53:11,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:11,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 16:53:11,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 16:53:12,251 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2020-10-11 16:53:12,252 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 167 flow. Second operand 5 states. [2020-10-11 16:53:12,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:12,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2020-10-11 16:53:12,253 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:12,337 INFO L129 PetriNetUnfolder]: 3/93 cut-off events. [2020-10-11 16:53:12,337 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-11 16:53:12,338 INFO L80 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 93 events. 3/93 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 9/102 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2020-10-11 16:53:12,338 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 9 selfloop transitions, 11 changer transitions 0/77 dead transitions. [2020-10-11 16:53:12,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 77 transitions, 215 flow [2020-10-11 16:53:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 16:53:12,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-11 16:53:12,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 365 transitions. [2020-10-11 16:53:12,343 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8021978021978022 [2020-10-11 16:53:12,343 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 365 transitions. [2020-10-11 16:53:12,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 365 transitions. [2020-10-11 16:53:12,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:12,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 365 transitions. [2020-10-11 16:53:12,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-11 16:53:12,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-11 16:53:12,354 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-11 16:53:12,354 INFO L185 Difference]: Start difference. First operand has 82 places, 73 transitions, 167 flow. Second operand 5 states and 365 transitions. [2020-10-11 16:53:12,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 77 transitions, 215 flow [2020-10-11 16:53:12,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 203 flow, removed 0 selfloop flow, removed 6 redundant places. [2020-10-11 16:53:12,360 INFO L241 Difference]: Finished difference. Result has 80 places, 76 transitions, 183 flow [2020-10-11 16:53:12,361 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2020-10-11 16:53:12,362 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2020-10-11 16:53:12,362 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 183 flow [2020-10-11 16:53:12,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 16:53:12,363 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:53:12,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:53:12,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 16:53:12,363 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:53:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:53:12,364 INFO L82 PathProgramCache]: Analyzing trace with hash -797183273, now seen corresponding path program 3 times [2020-10-11 16:53:12,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:53:12,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663741871] [2020-10-11 16:53:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:53:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:53:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:53:12,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663741871] [2020-10-11 16:53:12,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:53:12,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 16:53:12,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058634992] [2020-10-11 16:53:12,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:53:12,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:53:12,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:53:12,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:53:12,694 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2020-10-11 16:53:12,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 183 flow. Second operand 7 states. [2020-10-11 16:53:12,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:53:12,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2020-10-11 16:53:12,696 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:53:12,765 INFO L129 PetriNetUnfolder]: 3/94 cut-off events. [2020-10-11 16:53:12,765 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:53:12,766 INFO L80 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 94 events. 3/94 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 1 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 132. Up to 9 conditions per place. [2020-10-11 16:53:12,766 INFO L132 encePairwiseOnDemand]: 81/91 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2020-10-11 16:53:12,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 201 flow [2020-10-11 16:53:12,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 16:53:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 16:53:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 591 transitions. [2020-10-11 16:53:12,769 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8118131868131868 [2020-10-11 16:53:12,769 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 591 transitions. [2020-10-11 16:53:12,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 591 transitions. [2020-10-11 16:53:12,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:53:12,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 591 transitions. [2020-10-11 16:53:12,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 16:53:12,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 16:53:12,774 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 16:53:12,774 INFO L185 Difference]: Start difference. First operand has 80 places, 76 transitions, 183 flow. Second operand 8 states and 591 transitions. [2020-10-11 16:53:12,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 201 flow [2020-10-11 16:53:12,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 73 transitions, 191 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 16:53:12,776 INFO L241 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2020-10-11 16:53:12,777 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2020-10-11 16:53:12,777 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 2 predicate places. [2020-10-11 16:53:12,777 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2020-10-11 16:53:12,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:53:12,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 16:53:12,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:53:12 BasicIcfg [2020-10-11 16:53:12,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:53:12,786 INFO L168 Benchmark]: Toolchain (without parser) took 5250.06 ms. Allocated memory was 251.1 MB in the beginning and 434.6 MB in the end (delta: 183.5 MB). Free memory was 203.7 MB in the beginning and 292.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 95.2 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:12,787 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 225.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:53:12,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.85 ms. Allocated memory was 251.1 MB in the beginning and 309.3 MB in the end (delta: 58.2 MB). Free memory was 203.7 MB in the beginning and 239.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:12,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.20 ms. Allocated memory is still 309.3 MB. Free memory was 239.7 MB in the beginning and 237.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:12,789 INFO L168 Benchmark]: Boogie Preprocessor took 39.30 ms. Allocated memory is still 309.3 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:53:12,790 INFO L168 Benchmark]: RCFGBuilder took 468.69 ms. Allocated memory is still 309.3 MB. Free memory was 237.1 MB in the beginning and 210.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:12,791 INFO L168 Benchmark]: TraceAbstraction took 3858.07 ms. Allocated memory was 309.3 MB in the beginning and 434.6 MB in the end (delta: 125.3 MB). Free memory was 207.7 MB in the beginning and 292.0 MB in the end (delta: -84.3 MB). Peak memory consumption was 41.0 MB. Max. memory is 14.2 GB. [2020-10-11 16:53:12,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 225.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 817.85 ms. Allocated memory was 251.1 MB in the beginning and 309.3 MB in the end (delta: 58.2 MB). Free memory was 203.7 MB in the beginning and 239.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 60.20 ms. Allocated memory is still 309.3 MB. Free memory was 239.7 MB in the beginning and 237.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 39.30 ms. Allocated memory is still 309.3 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 468.69 ms. Allocated memory is still 309.3 MB. Free memory was 237.1 MB in the beginning and 210.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3858.07 ms. Allocated memory was 309.3 MB in the beginning and 434.6 MB in the end (delta: 125.3 MB). Free memory was 207.7 MB in the beginning and 292.0 MB in the end (delta: -84.3 MB). Peak memory consumption was 41.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 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: SAFE, OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 249 SDslu, 278 SDs, 0 SdLazy, 812 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 335 ConstructedInterpolants, 0 QuantifiedInterpolants, 44823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 correct! Received shutdown request...