/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 01:38:14,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 01:38:14,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 01:38:14,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 01:38:14,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 01:38:14,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 01:38:14,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 01:38:14,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 01:38:14,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 01:38:14,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 01:38:14,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 01:38:14,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 01:38:14,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 01:38:14,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 01:38:14,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 01:38:14,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 01:38:14,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 01:38:14,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 01:38:14,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 01:38:14,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 01:38:14,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 01:38:14,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 01:38:14,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 01:38:14,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 01:38:14,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 01:38:14,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 01:38:14,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 01:38:14,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 01:38:14,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 01:38:14,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 01:38:14,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 01:38:14,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 01:38:14,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 01:38:14,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 01:38:14,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 01:38:14,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 01:38:14,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-16 01:38:14,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 01:38:14,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 01:38:14,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 01:38:14,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 01:38:14,198 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 01:38:14,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 01:38:14,199 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 01:38:14,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 01:38:14,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 01:38:14,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 01:38:14,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 01:38:14,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 01:38:14,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 01:38:14,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 01:38:14,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 01:38:14,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 01:38:14,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 01:38:14,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 01:38:14,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 01:38:14,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 01:38:14,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 01:38:14,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 01:38:14,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 01:38:14,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 01:38:14,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 01:38:14,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 01:38:14,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 01:38:14,203 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 01:38:14,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 01:38:14,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 01:38:14,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 01:38:14,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 01:38:14,533 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 01:38:14,533 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 01:38:14,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-10-16 01:38:14,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20434a43e/af9bb2d97b8e421d9ea70b9d56e28413/FLAG14e608496 [2020-10-16 01:38:15,163 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 01:38:15,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-10-16 01:38:15,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20434a43e/af9bb2d97b8e421d9ea70b9d56e28413/FLAG14e608496 [2020-10-16 01:38:15,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20434a43e/af9bb2d97b8e421d9ea70b9d56e28413 [2020-10-16 01:38:15,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 01:38:15,448 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 01:38:15,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 01:38:15,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 01:38:15,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 01:38:15,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:38:15" (1/1) ... [2020-10-16 01:38:15,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a6f078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:15, skipping insertion in model container [2020-10-16 01:38:15,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:38:15" (1/1) ... [2020-10-16 01:38:15,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 01:38:15,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 01:38:15,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:38:15,866 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 01:38:16,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:38:16,125 INFO L208 MainTranslator]: Completed translation [2020-10-16 01:38:16,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16 WrapperNode [2020-10-16 01:38:16,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 01:38:16,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 01:38:16,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 01:38:16,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 01:38:16,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 01:38:16,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 01:38:16,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 01:38:16,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 01:38:16,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (1/1) ... [2020-10-16 01:38:16,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 01:38:16,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 01:38:16,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 01:38:16,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 01:38:16,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (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 01:38:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 01:38:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 01:38:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 01:38:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 01:38:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 01:38:16,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 01:38:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 01:38:16,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 01:38:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 01:38:16,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 01:38:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 01:38:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 01:38:16,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 01:38:16,297 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 01:38:16,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 01:38:16,624 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 01:38:16,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:38:16 BoogieIcfgContainer [2020-10-16 01:38:16,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 01:38:16,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 01:38:16,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 01:38:16,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 01:38:16,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:38:15" (1/3) ... [2020-10-16 01:38:16,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35216bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:38:16, skipping insertion in model container [2020-10-16 01:38:16,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:38:16" (2/3) ... [2020-10-16 01:38:16,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35216bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:38:16, skipping insertion in model container [2020-10-16 01:38:16,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:38:16" (3/3) ... [2020-10-16 01:38:16,635 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2020-10-16 01:38:16,646 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 01:38:16,654 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 01:38:16,655 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 01:38:16,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,685 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,687 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,687 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,688 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,689 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,709 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,709 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,709 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,725 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,725 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:38:16,754 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 01:38:16,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:38:16,774 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:38:16,774 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:38:16,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:38:16,774 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:38:16,774 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:38:16,774 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:38:16,774 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:38:16,788 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 01:38:16,830 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 01:38:16,831 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:38:16,836 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 01:38:16,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 01:38:16,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 56 transitions, 121 flow [2020-10-16 01:38:16,845 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:38:16,847 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 01:38:16,850 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 01:38:16,851 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 65 places, 56 transitions, 121 flow [2020-10-16 01:38:16,876 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2020-10-16 01:38:16,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:38:16,880 INFO L80 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2020-10-16 01:38:16,884 INFO L117 LiptonReduction]: Number of co-enabled transitions 864 [2020-10-16 01:38:18,230 INFO L132 LiptonReduction]: Checked pairs total: 1693 [2020-10-16 01:38:18,231 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 01:38:18,234 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1392 [2020-10-16 01:38:18,242 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2020-10-16 01:38:18,242 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:38:18,242 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:18,243 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:18,244 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:18,250 INFO L82 PathProgramCache]: Analyzing trace with hash 158172579, now seen corresponding path program 1 times [2020-10-16 01:38:18,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:18,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014272103] [2020-10-16 01:38:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:18,483 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 01:38:18,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014272103] [2020-10-16 01:38:18,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:18,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:38:18,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525584816] [2020-10-16 01:38:18,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:38:18,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:18,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:38:18,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:38:18,515 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2020-10-16 01:38:18,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states. [2020-10-16 01:38:18,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:18,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2020-10-16 01:38:18,519 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:18,541 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 01:38:18,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:38:18,542 INFO L80 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 01:38:18,543 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 01:38:18,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 49 flow [2020-10-16 01:38:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:38:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:38:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2020-10-16 01:38:18,561 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8849557522123894 [2020-10-16 01:38:18,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2020-10-16 01:38:18,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2020-10-16 01:38:18,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:18,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2020-10-16 01:38:18,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:38:18,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:38:18,579 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:38:18,581 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 300 transitions. [2020-10-16 01:38:18,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 49 flow [2020-10-16 01:38:18,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 01:38:18,587 INFO L241 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2020-10-16 01:38:18,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2020-10-16 01:38:18,592 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2020-10-16 01:38:18,592 INFO L481 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2020-10-16 01:38:18,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:38:18,592 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:18,592 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:18,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 01:38:18,593 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:18,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:18,594 INFO L82 PathProgramCache]: Analyzing trace with hash 607157492, now seen corresponding path program 1 times [2020-10-16 01:38:18,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:18,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808456492] [2020-10-16 01:38:18,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:18,681 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 01:38:18,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808456492] [2020-10-16 01:38:18,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:18,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:38:18,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724193889] [2020-10-16 01:38:18,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:38:18,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:18,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:38:18,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:38:18,687 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2020-10-16 01:38:18,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states. [2020-10-16 01:38:18,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:18,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2020-10-16 01:38:18,688 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:18,720 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 01:38:18,720 INFO L130 PetriNetUnfolder]: For 5/12 co-relation queries the response was YES. [2020-10-16 01:38:18,721 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 22 events. 0/22 cut-off events. For 5/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 01:38:18,721 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 3 changer transitions 1/18 dead transitions. [2020-10-16 01:38:18,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 63 flow [2020-10-16 01:38:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:38:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:38:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2020-10-16 01:38:18,726 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8296460176991151 [2020-10-16 01:38:18,726 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2020-10-16 01:38:18,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2020-10-16 01:38:18,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:18,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2020-10-16 01:38:18,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:38:18,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:38:18,731 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:38:18,731 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 375 transitions. [2020-10-16 01:38:18,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 63 flow [2020-10-16 01:38:18,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 57 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:38:18,733 INFO L241 Difference]: Finished difference. Result has 30 places, 17 transitions, 58 flow [2020-10-16 01:38:18,733 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2020-10-16 01:38:18,734 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2020-10-16 01:38:18,734 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 58 flow [2020-10-16 01:38:18,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:38:18,734 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:18,735 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:18,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 01:38:18,735 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:18,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:18,736 INFO L82 PathProgramCache]: Analyzing trace with hash 539312677, now seen corresponding path program 1 times [2020-10-16 01:38:18,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:18,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809737403] [2020-10-16 01:38:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:18,782 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 01:38:18,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809737403] [2020-10-16 01:38:18,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:18,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:38:18,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214850937] [2020-10-16 01:38:18,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:38:18,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:18,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:38:18,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:38:18,787 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2020-10-16 01:38:18,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 58 flow. Second operand 3 states. [2020-10-16 01:38:18,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:18,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2020-10-16 01:38:18,788 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:18,804 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 01:38:18,804 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2020-10-16 01:38:18,804 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 17 events. 0/17 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 01:38:18,805 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 01:38:18,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 17 transitions, 64 flow [2020-10-16 01:38:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:38:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:38:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-10-16 01:38:18,808 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8613569321533924 [2020-10-16 01:38:18,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2020-10-16 01:38:18,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2020-10-16 01:38:18,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:18,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2020-10-16 01:38:18,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:38:18,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:38:18,811 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:38:18,812 INFO L185 Difference]: Start difference. First operand has 30 places, 17 transitions, 58 flow. Second operand 3 states and 292 transitions. [2020-10-16 01:38:18,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 17 transitions, 64 flow [2020-10-16 01:38:18,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 17 transitions, 52 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 01:38:18,814 INFO L241 Difference]: Finished difference. Result has 29 places, 17 transitions, 54 flow [2020-10-16 01:38:18,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2020-10-16 01:38:18,815 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2020-10-16 01:38:18,815 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 54 flow [2020-10-16 01:38:18,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:38:18,815 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:18,816 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:18,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 01:38:18,816 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:18,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:18,817 INFO L82 PathProgramCache]: Analyzing trace with hash 658078901, now seen corresponding path program 1 times [2020-10-16 01:38:18,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:18,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288324806] [2020-10-16 01:38:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:18,909 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 01:38:18,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288324806] [2020-10-16 01:38:18,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:18,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:38:18,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410481154] [2020-10-16 01:38:18,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:38:18,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:18,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:38:18,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:38:18,913 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2020-10-16 01:38:18,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 54 flow. Second operand 4 states. [2020-10-16 01:38:18,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:18,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2020-10-16 01:38:18,914 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:18,935 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 01:38:18,935 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2020-10-16 01:38:18,936 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 22 events. 0/22 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 01:38:18,936 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 3 changer transitions 1/18 dead transitions. [2020-10-16 01:38:18,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 18 transitions, 69 flow [2020-10-16 01:38:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:38:18,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:38:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2020-10-16 01:38:18,939 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8207964601769911 [2020-10-16 01:38:18,939 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2020-10-16 01:38:18,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2020-10-16 01:38:18,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:18,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2020-10-16 01:38:18,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:38:18,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:38:18,942 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:38:18,942 INFO L185 Difference]: Start difference. First operand has 29 places, 17 transitions, 54 flow. Second operand 4 states and 371 transitions. [2020-10-16 01:38:18,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 18 transitions, 69 flow [2020-10-16 01:38:18,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 18 transitions, 63 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:38:18,944 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 64 flow [2020-10-16 01:38:18,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2020-10-16 01:38:18,944 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2020-10-16 01:38:18,944 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 64 flow [2020-10-16 01:38:18,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:38:18,945 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:18,945 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:18,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 01:38:18,945 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:18,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:18,946 INFO L82 PathProgramCache]: Analyzing trace with hash 461677915, now seen corresponding path program 1 times [2020-10-16 01:38:18,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:18,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374853174] [2020-10-16 01:38:18,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:19,014 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 01:38:19,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374853174] [2020-10-16 01:38:19,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:19,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:38:19,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195650613] [2020-10-16 01:38:19,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:38:19,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:19,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:38:19,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:38:19,018 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 01:38:19,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 64 flow. Second operand 4 states. [2020-10-16 01:38:19,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:19,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 01:38:19,018 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:19,062 INFO L129 PetriNetUnfolder]: 28/69 cut-off events. [2020-10-16 01:38:19,062 INFO L130 PetriNetUnfolder]: For 131/142 co-relation queries the response was YES. [2020-10-16 01:38:19,063 INFO L80 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 69 events. 28/69 cut-off events. For 131/142 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 205 event pairs, 12 based on Foata normal form. 9/73 useless extension candidates. Maximal degree in co-relation 163. Up to 45 conditions per place. [2020-10-16 01:38:19,064 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2020-10-16 01:38:19,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 116 flow [2020-10-16 01:38:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:38:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:38:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2020-10-16 01:38:19,067 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7486725663716814 [2020-10-16 01:38:19,067 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2020-10-16 01:38:19,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2020-10-16 01:38:19,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:19,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2020-10-16 01:38:19,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:38:19,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:38:19,071 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:38:19,071 INFO L185 Difference]: Start difference. First operand has 32 places, 17 transitions, 64 flow. Second operand 5 states and 423 transitions. [2020-10-16 01:38:19,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 116 flow [2020-10-16 01:38:19,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 100 flow, removed 3 selfloop flow, removed 5 redundant places. [2020-10-16 01:38:19,073 INFO L241 Difference]: Finished difference. Result has 34 places, 20 transitions, 84 flow [2020-10-16 01:38:19,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2020-10-16 01:38:19,074 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2020-10-16 01:38:19,074 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 84 flow [2020-10-16 01:38:19,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:38:19,074 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:19,074 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:19,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 01:38:19,075 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:19,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1107418127, now seen corresponding path program 1 times [2020-10-16 01:38:19,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:19,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762237982] [2020-10-16 01:38:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:19,169 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 01:38:19,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762237982] [2020-10-16 01:38:19,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:19,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:38:19,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5516138] [2020-10-16 01:38:19,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:38:19,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:19,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:38:19,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:38:19,173 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 01:38:19,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 84 flow. Second operand 5 states. [2020-10-16 01:38:19,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:19,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 01:38:19,174 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:19,233 INFO L129 PetriNetUnfolder]: 16/50 cut-off events. [2020-10-16 01:38:19,233 INFO L130 PetriNetUnfolder]: For 71/114 co-relation queries the response was YES. [2020-10-16 01:38:19,234 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 50 events. 16/50 cut-off events. For 71/114 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 2 based on Foata normal form. 17/65 useless extension candidates. Maximal degree in co-relation 166. Up to 35 conditions per place. [2020-10-16 01:38:19,234 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 7 changer transitions 7/30 dead transitions. [2020-10-16 01:38:19,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 180 flow [2020-10-16 01:38:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 01:38:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 01:38:19,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2020-10-16 01:38:19,237 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7477876106194691 [2020-10-16 01:38:19,237 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2020-10-16 01:38:19,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2020-10-16 01:38:19,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:19,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2020-10-16 01:38:19,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 01:38:19,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 01:38:19,241 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 01:38:19,241 INFO L185 Difference]: Start difference. First operand has 34 places, 20 transitions, 84 flow. Second operand 6 states and 507 transitions. [2020-10-16 01:38:19,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 180 flow [2020-10-16 01:38:19,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 174 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 01:38:19,244 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 134 flow [2020-10-16 01:38:19,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2020-10-16 01:38:19,244 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2020-10-16 01:38:19,244 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 134 flow [2020-10-16 01:38:19,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:38:19,245 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:19,245 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:38:19,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 01:38:19,245 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:19,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1334626881, now seen corresponding path program 1 times [2020-10-16 01:38:19,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:19,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403670445] [2020-10-16 01:38:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:19,310 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 01:38:19,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403670445] [2020-10-16 01:38:19,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:19,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 01:38:19,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478949085] [2020-10-16 01:38:19,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 01:38:19,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:19,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 01:38:19,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 01:38:19,314 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 01:38:19,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 134 flow. Second operand 6 states. [2020-10-16 01:38:19,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:19,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 01:38:19,315 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:19,378 INFO L129 PetriNetUnfolder]: 7/32 cut-off events. [2020-10-16 01:38:19,379 INFO L130 PetriNetUnfolder]: For 90/124 co-relation queries the response was YES. [2020-10-16 01:38:19,379 INFO L80 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 32 events. 7/32 cut-off events. For 90/124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 16/47 useless extension candidates. Maximal degree in co-relation 124. Up to 20 conditions per place. [2020-10-16 01:38:19,380 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 2 selfloop transitions, 10 changer transitions 4/27 dead transitions. [2020-10-16 01:38:19,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 202 flow [2020-10-16 01:38:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 01:38:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 01:38:19,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 585 transitions. [2020-10-16 01:38:19,383 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7395701643489254 [2020-10-16 01:38:19,383 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 585 transitions. [2020-10-16 01:38:19,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 585 transitions. [2020-10-16 01:38:19,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:19,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 585 transitions. [2020-10-16 01:38:19,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 01:38:19,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 01:38:19,387 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 01:38:19,387 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 134 flow. Second operand 7 states and 585 transitions. [2020-10-16 01:38:19,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 202 flow [2020-10-16 01:38:19,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 166 flow, removed 14 selfloop flow, removed 4 redundant places. [2020-10-16 01:38:19,390 INFO L241 Difference]: Finished difference. Result has 41 places, 23 transitions, 136 flow [2020-10-16 01:38:19,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2020-10-16 01:38:19,391 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2020-10-16 01:38:19,391 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 136 flow [2020-10-16 01:38:19,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 01:38:19,391 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:38:19,391 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 01:38:19,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 01:38:19,392 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:38:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:38:19,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1041895041, now seen corresponding path program 1 times [2020-10-16 01:38:19,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:38:19,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300419526] [2020-10-16 01:38:19,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:38:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:38:19,417 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 01:38:19,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300419526] [2020-10-16 01:38:19,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:38:19,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:38:19,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451397] [2020-10-16 01:38:19,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:38:19,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:38:19,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:38:19,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:38:19,420 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 113 [2020-10-16 01:38:19,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 136 flow. Second operand 3 states. [2020-10-16 01:38:19,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:38:19,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 113 [2020-10-16 01:38:19,421 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:38:19,428 INFO L129 PetriNetUnfolder]: 5/25 cut-off events. [2020-10-16 01:38:19,428 INFO L130 PetriNetUnfolder]: For 46/53 co-relation queries the response was YES. [2020-10-16 01:38:19,429 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 25 events. 5/25 cut-off events. For 46/53 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 78. Up to 11 conditions per place. [2020-10-16 01:38:19,429 INFO L132 encePairwiseOnDemand]: 111/113 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2020-10-16 01:38:19,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 132 flow [2020-10-16 01:38:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:38:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:38:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-10-16 01:38:19,431 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8525073746312685 [2020-10-16 01:38:19,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2020-10-16 01:38:19,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2020-10-16 01:38:19,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:38:19,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2020-10-16 01:38:19,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:38:19,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:38:19,433 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:38:19,434 INFO L185 Difference]: Start difference. First operand has 41 places, 23 transitions, 136 flow. Second operand 3 states and 289 transitions. [2020-10-16 01:38:19,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 132 flow [2020-10-16 01:38:19,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 98 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-16 01:38:19,436 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2020-10-16 01:38:19,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2020-10-16 01:38:19,436 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2020-10-16 01:38:19,436 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2020-10-16 01:38:19,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:38:19,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 01:38:19,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:38:19 BasicIcfg [2020-10-16 01:38:19,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 01:38:19,444 INFO L168 Benchmark]: Toolchain (without parser) took 3995.32 ms. Allocated memory was 253.2 MB in the beginning and 372.8 MB in the end (delta: 119.5 MB). Free memory was 209.7 MB in the beginning and 259.4 MB in the end (delta: -49.6 MB). Peak memory consumption was 69.9 MB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,445 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 253.2 MB. Free memory was 231.3 MB in the beginning and 230.4 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.06 ms. Allocated memory was 253.2 MB in the beginning and 320.3 MB in the end (delta: 67.1 MB). Free memory was 208.9 MB in the beginning and 276.3 MB in the end (delta: -67.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.86 ms. Allocated memory is still 320.3 MB. Free memory was 276.3 MB in the beginning and 273.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,447 INFO L168 Benchmark]: Boogie Preprocessor took 25.58 ms. Allocated memory is still 320.3 MB. Free memory was 273.8 MB in the beginning and 272.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,448 INFO L168 Benchmark]: RCFGBuilder took 402.03 ms. Allocated memory is still 320.3 MB. Free memory was 272.1 MB in the beginning and 249.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,449 INFO L168 Benchmark]: TraceAbstraction took 2813.06 ms. Allocated memory was 320.3 MB in the beginning and 372.8 MB in the end (delta: 52.4 MB). Free memory was 249.3 MB in the beginning and 259.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 42.3 MB. Max. memory is 14.2 GB. [2020-10-16 01:38:19,453 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 253.2 MB. Free memory was 231.3 MB in the beginning and 230.4 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 677.06 ms. Allocated memory was 253.2 MB in the beginning and 320.3 MB in the end (delta: 67.1 MB). Free memory was 208.9 MB in the beginning and 276.3 MB in the end (delta: -67.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 71.86 ms. Allocated memory is still 320.3 MB. Free memory was 276.3 MB in the beginning and 273.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.58 ms. Allocated memory is still 320.3 MB. Free memory was 273.8 MB in the beginning and 272.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 402.03 ms. Allocated memory is still 320.3 MB. Free memory was 272.1 MB in the beginning and 249.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2813.06 ms. Allocated memory was 320.3 MB in the beginning and 372.8 MB in the end (delta: 52.4 MB). Free memory was 249.3 MB in the beginning and 259.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 42.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 609 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 65 PlacesBefore, 27 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 1693 MoverChecksTotal - PositiveResult [Line: 7]: 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 4 procedures, 69 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: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 24 SDtfs, 11 SDslu, 13 SDs, 0 SdLazy, 101 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=7, 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, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...