/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:33:16,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:33:16,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:33:16,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 02:33:16,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:33:16,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:33:16,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:33:16,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:33:16,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:33:16,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:33:16,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:33:16,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:33:16,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:33:16,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:33:16,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:33:16,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:33:16,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:33:16,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:33:16,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:33:16,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:33:16,212 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-NoLbe.epf [2021-03-11 02:33:16,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:33:16,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:33:16,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:33:16,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:33:16,242 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:33:16,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:33:16,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:33:16,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:33:16,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:33:16,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:33:16,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:33:16,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:33:16,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:33:16,244 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:33:16,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:33:16,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:33:16,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:33:16,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:33:16,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:33:16,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:33:16,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:33:16,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:33:16,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:33:16,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:33:16,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:33:16,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:33:16,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:33:16,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:33:16,526 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:33:16,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-03-11 02:33:16,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9467e903a/26c1468295e44a22b34304c00d5a4712/FLAGa2645997e [2021-03-11 02:33:16,981 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:33:16,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-03-11 02:33:16,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9467e903a/26c1468295e44a22b34304c00d5a4712/FLAGa2645997e [2021-03-11 02:33:17,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9467e903a/26c1468295e44a22b34304c00d5a4712 [2021-03-11 02:33:17,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:33:17,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:33:17,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:33:17,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:33:17,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:33:17,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702c9c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17, skipping insertion in model container [2021-03-11 02:33:17,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:33:17,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:33:17,475 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i[950,963] [2021-03-11 02:33:17,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:33:17,603 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:33:17,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i[950,963] [2021-03-11 02:33:17,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:33:17,680 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:33:17,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17 WrapperNode [2021-03-11 02:33:17,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:33:17,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:33:17,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:33:17,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:33:17,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:33:17,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:33:17,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:33:17,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:33:17,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:33:17,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:33:17,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:33:17,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:33:17,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (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 [2021-03-11 02:33:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:33:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:33:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:33:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:33:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:33:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:33:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:33:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:33:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:33:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:33:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 02:33:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 02:33:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:33:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:33:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:33:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:33:17,766 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:33:18,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:33:18,065 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:33:18,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:18 BoogieIcfgContainer [2021-03-11 02:33:18,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:33:18,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:33:18,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:33:18,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:33:18,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:33:17" (1/3) ... [2021-03-11 02:33:18,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578a3e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:18, skipping insertion in model container [2021-03-11 02:33:18,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (2/3) ... [2021-03-11 02:33:18,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578a3e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:18, skipping insertion in model container [2021-03-11 02:33:18,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:18" (3/3) ... [2021-03-11 02:33:18,071 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2021-03-11 02:33:18,077 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:33:18,080 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:33:18,080 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:33:18,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,107 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,107 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,110 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,110 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,110 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,110 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,111 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,117 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,117 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,123 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,123 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,124 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:33:18,136 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 02:33:18,156 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:33:18,157 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:33:18,157 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:33:18,157 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:33:18,157 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:33:18,157 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:33:18,157 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:33:18,158 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:33:18,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 02:33:18,205 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-03-11 02:33:18,205 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:18,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-11 02:33:18,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 02:33:18,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-03-11 02:33:18,229 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2021-03-11 02:33:18,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:18,229 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:18,230 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] [2021-03-11 02:33:18,230 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:18,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:18,233 INFO L82 PathProgramCache]: Analyzing trace with hash -898252917, now seen corresponding path program 1 times [2021-03-11 02:33:18,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:18,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060405511] [2021-03-11 02:33:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:18,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:18,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:18,451 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:18,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:18,464 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:18,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:18,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:18,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:18,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:18,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:18,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:18,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:18,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060405511] [2021-03-11 02:33:18,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:18,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:18,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183031096] [2021-03-11 02:33:18,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:18,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:18,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:18,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:18,513 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:18,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 67 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:18,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:18,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:18,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:18,877 INFO L129 PetriNetUnfolder]: 996/2296 cut-off events. [2021-03-11 02:33:18,877 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:18,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3835 conditions, 2296 events. 996/2296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 17879 event pairs, 272 based on Foata normal form. 72/2312 useless extension candidates. Maximal degree in co-relation 3803. Up to 621 conditions per place. [2021-03-11 02:33:18,892 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 19 selfloop transitions, 7 changer transitions 43/119 dead transitions. [2021-03-11 02:33:18,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 119 transitions, 388 flow [2021-03-11 02:33:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:18,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 658 transitions. [2021-03-11 02:33:18,906 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8601307189542484 [2021-03-11 02:33:18,906 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 658 transitions. [2021-03-11 02:33:18,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 658 transitions. [2021-03-11 02:33:18,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:18,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 658 transitions. [2021-03-11 02:33:18,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.11111111111111) internal successors, (658), 9 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:18,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:18,921 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:18,922 INFO L185 Difference]: Start difference. First operand has 79 places, 67 transitions, 146 flow. Second operand 9 states and 658 transitions. [2021-03-11 02:33:18,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 119 transitions, 388 flow [2021-03-11 02:33:18,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 119 transitions, 384 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:33:18,929 INFO L241 Difference]: Finished difference. Result has 91 places, 72 transitions, 242 flow [2021-03-11 02:33:18,930 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=242, PETRI_PLACES=91, PETRI_TRANSITIONS=72} [2021-03-11 02:33:18,930 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-03-11 02:33:18,930 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 72 transitions, 242 flow [2021-03-11 02:33:18,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:18,931 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:18,931 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] [2021-03-11 02:33:18,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:33:18,931 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:18,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:18,932 INFO L82 PathProgramCache]: Analyzing trace with hash 96521420, now seen corresponding path program 1 times [2021-03-11 02:33:18,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:18,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439374419] [2021-03-11 02:33:18,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:19,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:19,035 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:19,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:19,044 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:19,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:19,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439374419] [2021-03-11 02:33:19,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:19,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:19,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61918584] [2021-03-11 02:33:19,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:19,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:19,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:19,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:19,080 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:19,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 72 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:19,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:19,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:19,415 INFO L129 PetriNetUnfolder]: 712/1856 cut-off events. [2021-03-11 02:33:19,415 INFO L130 PetriNetUnfolder]: For 3574/4899 co-relation queries the response was YES. [2021-03-11 02:33:19,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5939 conditions, 1856 events. 712/1856 cut-off events. For 3574/4899 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 14314 event pairs, 2 based on Foata normal form. 54/1869 useless extension candidates. Maximal degree in co-relation 5901. Up to 600 conditions per place. [2021-03-11 02:33:19,428 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 25 selfloop transitions, 12 changer transitions 76/163 dead transitions. [2021-03-11 02:33:19,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 163 transitions, 1148 flow [2021-03-11 02:33:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:19,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2021-03-11 02:33:19,445 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8542986425339366 [2021-03-11 02:33:19,445 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2021-03-11 02:33:19,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2021-03-11 02:33:19,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:19,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2021-03-11 02:33:19,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,449 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,449 INFO L185 Difference]: Start difference. First operand has 91 places, 72 transitions, 242 flow. Second operand 13 states and 944 transitions. [2021-03-11 02:33:19,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 163 transitions, 1148 flow [2021-03-11 02:33:19,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 163 transitions, 1056 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 02:33:19,463 INFO L241 Difference]: Finished difference. Result has 107 places, 80 transitions, 388 flow [2021-03-11 02:33:19,463 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=388, PETRI_PLACES=107, PETRI_TRANSITIONS=80} [2021-03-11 02:33:19,464 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2021-03-11 02:33:19,464 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 80 transitions, 388 flow [2021-03-11 02:33:19,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,464 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:19,464 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] [2021-03-11 02:33:19,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:33:19,465 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:19,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1185349420, now seen corresponding path program 1 times [2021-03-11 02:33:19,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:19,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404185623] [2021-03-11 02:33:19,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:19,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:19,543 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:19,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:19,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:19,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404185623] [2021-03-11 02:33:19,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:19,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:19,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813792133] [2021-03-11 02:33:19,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:19,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:19,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:19,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:19,581 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:19,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 80 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:19,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:19,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:19,750 INFO L129 PetriNetUnfolder]: 315/945 cut-off events. [2021-03-11 02:33:19,750 INFO L130 PetriNetUnfolder]: For 5024/6028 co-relation queries the response was YES. [2021-03-11 02:33:19,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3646 conditions, 945 events. 315/945 cut-off events. For 5024/6028 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6567 event pairs, 40 based on Foata normal form. 75/992 useless extension candidates. Maximal degree in co-relation 3597. Up to 302 conditions per place. [2021-03-11 02:33:19,760 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 17 selfloop transitions, 7 changer transitions 40/128 dead transitions. [2021-03-11 02:33:19,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 128 transitions, 956 flow [2021-03-11 02:33:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2021-03-11 02:33:19,762 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8875816993464052 [2021-03-11 02:33:19,762 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2021-03-11 02:33:19,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2021-03-11 02:33:19,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:19,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2021-03-11 02:33:19,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.44444444444444) internal successors, (679), 9 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,765 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,765 INFO L185 Difference]: Start difference. First operand has 107 places, 80 transitions, 388 flow. Second operand 9 states and 679 transitions. [2021-03-11 02:33:19,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 128 transitions, 956 flow [2021-03-11 02:33:19,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 128 transitions, 922 flow, removed 17 selfloop flow, removed 0 redundant places. [2021-03-11 02:33:19,776 INFO L241 Difference]: Finished difference. Result has 113 places, 86 transitions, 501 flow [2021-03-11 02:33:19,776 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=501, PETRI_PLACES=113, PETRI_TRANSITIONS=86} [2021-03-11 02:33:19,776 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 34 predicate places. [2021-03-11 02:33:19,776 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 86 transitions, 501 flow [2021-03-11 02:33:19,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,776 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:19,776 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] [2021-03-11 02:33:19,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:33:19,777 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:19,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:19,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2023888595, now seen corresponding path program 1 times [2021-03-11 02:33:19,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:19,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295352277] [2021-03-11 02:33:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:19,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:19,855 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:19,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:19,863 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:19,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:19,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:19,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295352277] [2021-03-11 02:33:19,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:19,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:19,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59769340] [2021-03-11 02:33:19,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:19,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:19,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:19,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:19,893 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:19,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 86 transitions, 501 flow. Second operand has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:19,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:19,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:20,098 INFO L129 PetriNetUnfolder]: 222/746 cut-off events. [2021-03-11 02:33:20,098 INFO L130 PetriNetUnfolder]: For 4991/6813 co-relation queries the response was YES. [2021-03-11 02:33:20,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 746 events. 222/746 cut-off events. For 4991/6813 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4824 event pairs, 25 based on Foata normal form. 32/760 useless extension candidates. Maximal degree in co-relation 3176. Up to 195 conditions per place. [2021-03-11 02:33:20,105 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 33 selfloop transitions, 17 changer transitions 49/149 dead transitions. [2021-03-11 02:33:20,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 149 transitions, 1407 flow [2021-03-11 02:33:20,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 923 transitions. [2021-03-11 02:33:20,107 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8352941176470589 [2021-03-11 02:33:20,107 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 923 transitions. [2021-03-11 02:33:20,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 923 transitions. [2021-03-11 02:33:20,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:20,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 923 transitions. [2021-03-11 02:33:20,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.0) internal successors, (923), 13 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,111 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,111 INFO L185 Difference]: Start difference. First operand has 113 places, 86 transitions, 501 flow. Second operand 13 states and 923 transitions. [2021-03-11 02:33:20,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 149 transitions, 1407 flow [2021-03-11 02:33:20,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 149 transitions, 1326 flow, removed 36 selfloop flow, removed 10 redundant places. [2021-03-11 02:33:20,121 INFO L241 Difference]: Finished difference. Result has 121 places, 92 transitions, 606 flow [2021-03-11 02:33:20,121 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=606, PETRI_PLACES=121, PETRI_TRANSITIONS=92} [2021-03-11 02:33:20,121 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 42 predicate places. [2021-03-11 02:33:20,121 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 92 transitions, 606 flow [2021-03-11 02:33:20,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,122 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:20,122 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] [2021-03-11 02:33:20,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:33:20,122 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:20,122 INFO L82 PathProgramCache]: Analyzing trace with hash -19459011, now seen corresponding path program 1 times [2021-03-11 02:33:20,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:20,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718450837] [2021-03-11 02:33:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:20,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:20,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:20,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718450837] [2021-03-11 02:33:20,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:20,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:20,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411940071] [2021-03-11 02:33:20,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:20,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:20,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:20,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:20,186 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:20,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 92 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:20,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:20,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:20,327 INFO L129 PetriNetUnfolder]: 137/625 cut-off events. [2021-03-11 02:33:20,327 INFO L130 PetriNetUnfolder]: For 5196/6357 co-relation queries the response was YES. [2021-03-11 02:33:20,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2658 conditions, 625 events. 137/625 cut-off events. For 5196/6357 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4210 event pairs, 20 based on Foata normal form. 46/653 useless extension candidates. Maximal degree in co-relation 2596. Up to 154 conditions per place. [2021-03-11 02:33:20,333 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 20 selfloop transitions, 8 changer transitions 20/116 dead transitions. [2021-03-11 02:33:20,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 116 transitions, 1014 flow [2021-03-11 02:33:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 673 transitions. [2021-03-11 02:33:20,334 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8797385620915033 [2021-03-11 02:33:20,335 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 673 transitions. [2021-03-11 02:33:20,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 673 transitions. [2021-03-11 02:33:20,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:20,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 673 transitions. [2021-03-11 02:33:20,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.77777777777777) internal successors, (673), 9 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,338 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,338 INFO L185 Difference]: Start difference. First operand has 121 places, 92 transitions, 606 flow. Second operand 9 states and 673 transitions. [2021-03-11 02:33:20,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 116 transitions, 1014 flow [2021-03-11 02:33:20,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 116 transitions, 934 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-03-11 02:33:20,350 INFO L241 Difference]: Finished difference. Result has 123 places, 91 transitions, 606 flow [2021-03-11 02:33:20,350 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=606, PETRI_PLACES=123, PETRI_TRANSITIONS=91} [2021-03-11 02:33:20,350 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-03-11 02:33:20,350 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 91 transitions, 606 flow [2021-03-11 02:33:20,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,350 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:20,351 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] [2021-03-11 02:33:20,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:33:20,351 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:20,351 INFO L82 PathProgramCache]: Analyzing trace with hash 327710936, now seen corresponding path program 1 times [2021-03-11 02:33:20,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:20,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38514583] [2021-03-11 02:33:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:20,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,414 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:20,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:20,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:20,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38514583] [2021-03-11 02:33:20,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:20,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:20,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590782698] [2021-03-11 02:33:20,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:20,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:20,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:20,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:20,441 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:20,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 91 transitions, 606 flow. Second operand has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:20,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:20,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:20,572 INFO L129 PetriNetUnfolder]: 161/660 cut-off events. [2021-03-11 02:33:20,572 INFO L130 PetriNetUnfolder]: For 6877/8139 co-relation queries the response was YES. [2021-03-11 02:33:20,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3181 conditions, 660 events. 161/660 cut-off events. For 6877/8139 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4565 event pairs, 64 based on Foata normal form. 41/683 useless extension candidates. Maximal degree in co-relation 3114. Up to 157 conditions per place. [2021-03-11 02:33:20,577 INFO L132 encePairwiseOnDemand]: 76/85 looper letters, 13 selfloop transitions, 7 changer transitions 27/112 dead transitions. [2021-03-11 02:33:20,577 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 112 transitions, 989 flow [2021-03-11 02:33:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 02:33:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 02:33:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 517 transitions. [2021-03-11 02:33:20,578 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8689075630252101 [2021-03-11 02:33:20,578 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 517 transitions. [2021-03-11 02:33:20,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 517 transitions. [2021-03-11 02:33:20,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:20,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 517 transitions. [2021-03-11 02:33:20,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 85.0) internal successors, (680), 8 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,581 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 85.0) internal successors, (680), 8 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,581 INFO L185 Difference]: Start difference. First operand has 123 places, 91 transitions, 606 flow. Second operand 7 states and 517 transitions. [2021-03-11 02:33:20,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 112 transitions, 989 flow [2021-03-11 02:33:20,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 112 transitions, 935 flow, removed 23 selfloop flow, removed 13 redundant places. [2021-03-11 02:33:20,594 INFO L241 Difference]: Finished difference. Result has 114 places, 84 transitions, 512 flow [2021-03-11 02:33:20,594 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=512, PETRI_PLACES=114, PETRI_TRANSITIONS=84} [2021-03-11 02:33:20,594 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 35 predicate places. [2021-03-11 02:33:20,594 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 84 transitions, 512 flow [2021-03-11 02:33:20,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,595 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:20,595 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] [2021-03-11 02:33:20,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:33:20,595 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:20,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:20,595 INFO L82 PathProgramCache]: Analyzing trace with hash -2146456244, now seen corresponding path program 2 times [2021-03-11 02:33:20,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:20,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146379725] [2021-03-11 02:33:20,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:20,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,638 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:20,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:20,647 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:20,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:20,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:20,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146379725] [2021-03-11 02:33:20,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:20,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:20,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737938841] [2021-03-11 02:33:20,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:20,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:20,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:20,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:20,673 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:20,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 84 transitions, 512 flow. Second operand has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:20,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:20,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:20,836 INFO L129 PetriNetUnfolder]: 106/479 cut-off events. [2021-03-11 02:33:20,837 INFO L130 PetriNetUnfolder]: For 3928/4428 co-relation queries the response was YES. [2021-03-11 02:33:20,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 479 events. 106/479 cut-off events. For 3928/4428 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2943 event pairs, 9 based on Foata normal form. 18/492 useless extension candidates. Maximal degree in co-relation 2120. Up to 92 conditions per place. [2021-03-11 02:33:20,841 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 27 selfloop transitions, 16 changer transitions 32/125 dead transitions. [2021-03-11 02:33:20,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 1237 flow [2021-03-11 02:33:20,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2021-03-11 02:33:20,843 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8190045248868778 [2021-03-11 02:33:20,843 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 905 transitions. [2021-03-11 02:33:20,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 905 transitions. [2021-03-11 02:33:20,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:20,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 905 transitions. [2021-03-11 02:33:20,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.61538461538461) internal successors, (905), 13 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,846 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,846 INFO L185 Difference]: Start difference. First operand has 114 places, 84 transitions, 512 flow. Second operand 13 states and 905 transitions. [2021-03-11 02:33:20,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 1237 flow [2021-03-11 02:33:20,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 125 transitions, 1159 flow, removed 15 selfloop flow, removed 7 redundant places. [2021-03-11 02:33:20,858 INFO L241 Difference]: Finished difference. Result has 128 places, 86 transitions, 590 flow [2021-03-11 02:33:20,858 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=590, PETRI_PLACES=128, PETRI_TRANSITIONS=86} [2021-03-11 02:33:20,858 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 49 predicate places. [2021-03-11 02:33:20,858 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 86 transitions, 590 flow [2021-03-11 02:33:20,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,858 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:20,858 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] [2021-03-11 02:33:20,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:33:20,859 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:20,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:20,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1765410205, now seen corresponding path program 1 times [2021-03-11 02:33:20,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:20,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860569706] [2021-03-11 02:33:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:20,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,907 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:20,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:20,913 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:20,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:20,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:20,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860569706] [2021-03-11 02:33:20,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:20,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:20,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967308019] [2021-03-11 02:33:20,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:20,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:20,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:20,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:20,939 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:20,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 86 transitions, 590 flow. Second operand has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:20,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:20,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:21,096 INFO L129 PetriNetUnfolder]: 71/457 cut-off events. [2021-03-11 02:33:21,097 INFO L130 PetriNetUnfolder]: For 4545/4993 co-relation queries the response was YES. [2021-03-11 02:33:21,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2057 conditions, 457 events. 71/457 cut-off events. For 4545/4993 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2972 event pairs, 3 based on Foata normal form. 22/473 useless extension candidates. Maximal degree in co-relation 1985. Up to 73 conditions per place. [2021-03-11 02:33:21,100 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 29 selfloop transitions, 16 changer transitions 26/121 dead transitions. [2021-03-11 02:33:21,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 121 transitions, 1284 flow [2021-03-11 02:33:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 899 transitions. [2021-03-11 02:33:21,102 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8135746606334842 [2021-03-11 02:33:21,102 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 899 transitions. [2021-03-11 02:33:21,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 899 transitions. [2021-03-11 02:33:21,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:21,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 899 transitions. [2021-03-11 02:33:21,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.15384615384616) internal successors, (899), 13 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,106 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,106 INFO L185 Difference]: Start difference. First operand has 128 places, 86 transitions, 590 flow. Second operand 13 states and 899 transitions. [2021-03-11 02:33:21,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 121 transitions, 1284 flow [2021-03-11 02:33:21,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 121 transitions, 1154 flow, removed 49 selfloop flow, removed 11 redundant places. [2021-03-11 02:33:21,114 INFO L241 Difference]: Finished difference. Result has 132 places, 85 transitions, 636 flow [2021-03-11 02:33:21,115 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=636, PETRI_PLACES=132, PETRI_TRANSITIONS=85} [2021-03-11 02:33:21,115 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 53 predicate places. [2021-03-11 02:33:21,115 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 85 transitions, 636 flow [2021-03-11 02:33:21,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,115 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:21,115 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] [2021-03-11 02:33:21,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:33:21,116 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:21,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:21,116 INFO L82 PathProgramCache]: Analyzing trace with hash -473505393, now seen corresponding path program 1 times [2021-03-11 02:33:21,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:21,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345300671] [2021-03-11 02:33:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:21,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,151 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:21,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:21,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:21,167 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:21,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:21,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345300671] [2021-03-11 02:33:21,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:21,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:21,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029237950] [2021-03-11 02:33:21,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:21,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:21,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:21,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:21,176 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:21,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 85 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:21,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:21,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:21,569 INFO L129 PetriNetUnfolder]: 2176/4165 cut-off events. [2021-03-11 02:33:21,570 INFO L130 PetriNetUnfolder]: For 9308/9578 co-relation queries the response was YES. [2021-03-11 02:33:21,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9904 conditions, 4165 events. 2176/4165 cut-off events. For 9308/9578 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 34958 event pairs, 113 based on Foata normal form. 4/3735 useless extension candidates. Maximal degree in co-relation 9832. Up to 1421 conditions per place. [2021-03-11 02:33:21,607 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 29 selfloop transitions, 20 changer transitions 0/122 dead transitions. [2021-03-11 02:33:21,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 122 transitions, 808 flow [2021-03-11 02:33:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:33:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:33:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 751 transitions. [2021-03-11 02:33:21,609 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8835294117647059 [2021-03-11 02:33:21,609 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 751 transitions. [2021-03-11 02:33:21,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 751 transitions. [2021-03-11 02:33:21,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:21,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 751 transitions. [2021-03-11 02:33:21,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,612 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,612 INFO L185 Difference]: Start difference. First operand has 132 places, 85 transitions, 636 flow. Second operand 10 states and 751 transitions. [2021-03-11 02:33:21,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 122 transitions, 808 flow [2021-03-11 02:33:21,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 122 transitions, 743 flow, removed 18 selfloop flow, removed 12 redundant places. [2021-03-11 02:33:21,626 INFO L241 Difference]: Finished difference. Result has 126 places, 103 transitions, 714 flow [2021-03-11 02:33:21,626 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=714, PETRI_PLACES=126, PETRI_TRANSITIONS=103} [2021-03-11 02:33:21,626 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 47 predicate places. [2021-03-11 02:33:21,626 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 103 transitions, 714 flow [2021-03-11 02:33:21,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,627 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:21,627 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] [2021-03-11 02:33:21,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 02:33:21,627 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:21,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:21,627 INFO L82 PathProgramCache]: Analyzing trace with hash 890967367, now seen corresponding path program 1 times [2021-03-11 02:33:21,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:21,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211470618] [2021-03-11 02:33:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:21,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,659 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:21,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:21,678 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:21,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:21,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211470618] [2021-03-11 02:33:21,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:21,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:21,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139536260] [2021-03-11 02:33:21,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:21,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:21,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:21,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:21,686 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:21,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 103 transitions, 714 flow. Second operand has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:21,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:21,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:22,164 INFO L129 PetriNetUnfolder]: 2430/4729 cut-off events. [2021-03-11 02:33:22,164 INFO L130 PetriNetUnfolder]: For 17134/21430 co-relation queries the response was YES. [2021-03-11 02:33:22,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18975 conditions, 4729 events. 2430/4729 cut-off events. For 17134/21430 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 41901 event pairs, 37 based on Foata normal form. 440/4830 useless extension candidates. Maximal degree in co-relation 18906. Up to 2631 conditions per place. [2021-03-11 02:33:22,210 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 34 selfloop transitions, 38 changer transitions 0/145 dead transitions. [2021-03-11 02:33:22,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 145 transitions, 1138 flow [2021-03-11 02:33:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 978 transitions. [2021-03-11 02:33:22,212 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8850678733031674 [2021-03-11 02:33:22,212 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 978 transitions. [2021-03-11 02:33:22,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 978 transitions. [2021-03-11 02:33:22,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:22,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 978 transitions. [2021-03-11 02:33:22,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.23076923076923) internal successors, (978), 13 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,216 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,216 INFO L185 Difference]: Start difference. First operand has 126 places, 103 transitions, 714 flow. Second operand 13 states and 978 transitions. [2021-03-11 02:33:22,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 145 transitions, 1138 flow [2021-03-11 02:33:22,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 145 transitions, 1092 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-03-11 02:33:22,240 INFO L241 Difference]: Finished difference. Result has 138 places, 123 transitions, 961 flow [2021-03-11 02:33:22,240 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=961, PETRI_PLACES=138, PETRI_TRANSITIONS=123} [2021-03-11 02:33:22,240 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 59 predicate places. [2021-03-11 02:33:22,241 INFO L480 AbstractCegarLoop]: Abstraction has has 138 places, 123 transitions, 961 flow [2021-03-11 02:33:22,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,241 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:22,241 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] [2021-03-11 02:33:22,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 02:33:22,241 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:22,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1307484186, now seen corresponding path program 1 times [2021-03-11 02:33:22,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:22,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600557283] [2021-03-11 02:33:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:22,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:22,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:22,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:22,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:22,275 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:22,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:22,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:22,296 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:22,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:22,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:22,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:22,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600557283] [2021-03-11 02:33:22,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:22,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:22,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868109932] [2021-03-11 02:33:22,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:22,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:22,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:22,306 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:22,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 123 transitions, 961 flow. Second operand has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:22,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:22,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:23,016 INFO L129 PetriNetUnfolder]: 2493/4915 cut-off events. [2021-03-11 02:33:23,016 INFO L130 PetriNetUnfolder]: For 47266/57908 co-relation queries the response was YES. [2021-03-11 02:33:23,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27689 conditions, 4915 events. 2493/4915 cut-off events. For 47266/57908 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 44533 event pairs, 5 based on Foata normal form. 651/5186 useless extension candidates. Maximal degree in co-relation 27617. Up to 2697 conditions per place. [2021-03-11 02:33:23,060 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 28 selfloop transitions, 58 changer transitions 12/171 dead transitions. [2021-03-11 02:33:23,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 171 transitions, 1663 flow [2021-03-11 02:33:23,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 02:33:23,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 02:33:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1205 transitions. [2021-03-11 02:33:23,063 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8860294117647058 [2021-03-11 02:33:23,063 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1205 transitions. [2021-03-11 02:33:23,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1205 transitions. [2021-03-11 02:33:23,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:23,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1205 transitions. [2021-03-11 02:33:23,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.3125) internal successors, (1205), 16 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,070 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,070 INFO L185 Difference]: Start difference. First operand has 138 places, 123 transitions, 961 flow. Second operand 16 states and 1205 transitions. [2021-03-11 02:33:23,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 171 transitions, 1663 flow [2021-03-11 02:33:23,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 171 transitions, 1554 flow, removed 45 selfloop flow, removed 4 redundant places. [2021-03-11 02:33:23,221 INFO L241 Difference]: Finished difference. Result has 153 places, 149 transitions, 1321 flow [2021-03-11 02:33:23,221 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1321, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2021-03-11 02:33:23,221 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 74 predicate places. [2021-03-11 02:33:23,221 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 1321 flow [2021-03-11 02:33:23,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,222 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:23,222 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] [2021-03-11 02:33:23,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 02:33:23,222 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:23,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:23,223 INFO L82 PathProgramCache]: Analyzing trace with hash -623106855, now seen corresponding path program 1 times [2021-03-11 02:33:23,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:23,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54525791] [2021-03-11 02:33:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:23,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:23,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:23,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:23,261 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:23,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:23,273 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:23,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:23,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:23,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:23,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:23,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54525791] [2021-03-11 02:33:23,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:23,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:23,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361681194] [2021-03-11 02:33:23,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:23,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:23,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:23,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:23,307 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:23,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 1321 flow. Second operand has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:23,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:23,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:23,872 INFO L129 PetriNetUnfolder]: 1694/4670 cut-off events. [2021-03-11 02:33:23,872 INFO L130 PetriNetUnfolder]: For 36281/37683 co-relation queries the response was YES. [2021-03-11 02:33:23,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21343 conditions, 4670 events. 1694/4670 cut-off events. For 36281/37683 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 50757 event pairs, 2 based on Foata normal form. 24/4422 useless extension candidates. Maximal degree in co-relation 21263. Up to 1570 conditions per place. [2021-03-11 02:33:23,900 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 32 selfloop transitions, 19 changer transitions 8/173 dead transitions. [2021-03-11 02:33:23,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 173 transitions, 1684 flow [2021-03-11 02:33:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:23,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 630 transitions. [2021-03-11 02:33:23,902 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2021-03-11 02:33:23,902 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 630 transitions. [2021-03-11 02:33:23,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 630 transitions. [2021-03-11 02:33:23,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:23,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 630 transitions. [2021-03-11 02:33:23,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,905 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,905 INFO L185 Difference]: Start difference. First operand has 153 places, 149 transitions, 1321 flow. Second operand 9 states and 630 transitions. [2021-03-11 02:33:23,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 173 transitions, 1684 flow [2021-03-11 02:33:24,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 173 transitions, 1359 flow, removed 120 selfloop flow, removed 14 redundant places. [2021-03-11 02:33:24,441 INFO L241 Difference]: Finished difference. Result has 154 places, 153 transitions, 1149 flow [2021-03-11 02:33:24,442 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1149, PETRI_PLACES=154, PETRI_TRANSITIONS=153} [2021-03-11 02:33:24,442 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 75 predicate places. [2021-03-11 02:33:24,442 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 153 transitions, 1149 flow [2021-03-11 02:33:24,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 66.875) internal successors, (535), 8 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:24,442 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:24,442 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] [2021-03-11 02:33:24,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 02:33:24,442 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:24,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:24,443 INFO L82 PathProgramCache]: Analyzing trace with hash -573941373, now seen corresponding path program 2 times [2021-03-11 02:33:24,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:24,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876928351] [2021-03-11 02:33:24,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:24,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:24,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,475 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:24,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:24,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:24,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:24,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:24,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:24,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876928351] [2021-03-11 02:33:24,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:24,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 02:33:24,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908286570] [2021-03-11 02:33:24,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 02:33:24,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:24,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 02:33:24,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-11 02:33:24,501 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:24,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 153 transitions, 1149 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:24,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:24,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:24,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:25,363 INFO L129 PetriNetUnfolder]: 2729/5643 cut-off events. [2021-03-11 02:33:25,363 INFO L130 PetriNetUnfolder]: For 12068/17398 co-relation queries the response was YES. [2021-03-11 02:33:25,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20615 conditions, 5643 events. 2729/5643 cut-off events. For 12068/17398 co-relation queries the response was YES. Maximal size of possible extension queue 897. Compared 55322 event pairs, 2 based on Foata normal form. 695/5886 useless extension candidates. Maximal degree in co-relation 20573. Up to 832 conditions per place. [2021-03-11 02:33:25,387 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 4 selfloop transitions, 19 changer transitions 110/188 dead transitions. [2021-03-11 02:33:25,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 188 transitions, 1610 flow [2021-03-11 02:33:25,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:33:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:33:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1412 transitions. [2021-03-11 02:33:25,389 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8743034055727554 [2021-03-11 02:33:25,389 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1412 transitions. [2021-03-11 02:33:25,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1412 transitions. [2021-03-11 02:33:25,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:25,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1412 transitions. [2021-03-11 02:33:25,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 74.3157894736842) internal successors, (1412), 19 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 85.0) internal successors, (1700), 20 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,392 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 85.0) internal successors, (1700), 20 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,392 INFO L185 Difference]: Start difference. First operand has 154 places, 153 transitions, 1149 flow. Second operand 19 states and 1412 transitions. [2021-03-11 02:33:25,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 188 transitions, 1610 flow [2021-03-11 02:33:25,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 188 transitions, 1542 flow, removed 16 selfloop flow, removed 10 redundant places. [2021-03-11 02:33:25,568 INFO L241 Difference]: Finished difference. Result has 165 places, 78 transitions, 442 flow [2021-03-11 02:33:25,568 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=442, PETRI_PLACES=165, PETRI_TRANSITIONS=78} [2021-03-11 02:33:25,568 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 86 predicate places. [2021-03-11 02:33:25,568 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 78 transitions, 442 flow [2021-03-11 02:33:25,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,569 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:25,569 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] [2021-03-11 02:33:25,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 02:33:25,569 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:25,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1402755260, now seen corresponding path program 1 times [2021-03-11 02:33:25,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:25,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988395987] [2021-03-11 02:33:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:25,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:25,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:25,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:25,605 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:25,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:25,614 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:25,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:25,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:25,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:25,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:25,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988395987] [2021-03-11 02:33:25,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:25,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:25,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416732585] [2021-03-11 02:33:25,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:25,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:25,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:25,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:25,645 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:25,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 78 transitions, 442 flow. Second operand has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:25,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:25,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:25,701 INFO L129 PetriNetUnfolder]: 28/161 cut-off events. [2021-03-11 02:33:25,701 INFO L130 PetriNetUnfolder]: For 410/452 co-relation queries the response was YES. [2021-03-11 02:33:25,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 161 events. 28/161 cut-off events. For 410/452 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 559 event pairs, 0 based on Foata normal form. 1/157 useless extension candidates. Maximal degree in co-relation 431. Up to 22 conditions per place. [2021-03-11 02:33:25,703 INFO L132 encePairwiseOnDemand]: 76/85 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2021-03-11 02:33:25,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 79 transitions, 519 flow [2021-03-11 02:33:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:33:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:33:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 540 transitions. [2021-03-11 02:33:25,704 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-11 02:33:25,704 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 540 transitions. [2021-03-11 02:33:25,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 540 transitions. [2021-03-11 02:33:25,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:25,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 540 transitions. [2021-03-11 02:33:25,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,706 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,706 INFO L185 Difference]: Start difference. First operand has 165 places, 78 transitions, 442 flow. Second operand 8 states and 540 transitions. [2021-03-11 02:33:25,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 79 transitions, 519 flow [2021-03-11 02:33:25,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 79 transitions, 267 flow, removed 28 selfloop flow, removed 52 redundant places. [2021-03-11 02:33:25,709 INFO L241 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2021-03-11 02:33:25,709 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2021-03-11 02:33:25,709 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-03-11 02:33:25,709 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2021-03-11 02:33:25,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 02:33:25,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:33:25 BasicIcfg [2021-03-11 02:33:25,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:33:25,713 INFO L168 Benchmark]: Toolchain (without parser) took 8368.24 ms. Allocated memory was 255.9 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 234.7 MB in the beginning and 941.9 MB in the end (delta: -707.2 MB). Peak memory consumption was 315.3 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:25,714 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:33:25,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.56 ms. Allocated memory was 255.9 MB in the beginning and 346.0 MB in the end (delta: 90.2 MB). Free memory was 234.1 MB in the beginning and 309.3 MB in the end (delta: -75.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:25,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.94 ms. Allocated memory is still 346.0 MB. Free memory was 309.3 MB in the beginning and 307.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:25,714 INFO L168 Benchmark]: Boogie Preprocessor took 13.05 ms. Allocated memory is still 346.0 MB. Free memory was 307.3 MB in the beginning and 305.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:33:25,714 INFO L168 Benchmark]: RCFGBuilder took 344.18 ms. Allocated memory is still 346.0 MB. Free memory was 305.9 MB in the beginning and 320.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:25,715 INFO L168 Benchmark]: TraceAbstraction took 7645.69 ms. Allocated memory was 346.0 MB in the beginning and 1.3 GB in the end (delta: 933.2 MB). Free memory was 320.1 MB in the beginning and 941.9 MB in the end (delta: -621.8 MB). Peak memory consumption was 310.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:25,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 333.56 ms. Allocated memory was 255.9 MB in the beginning and 346.0 MB in the end (delta: 90.2 MB). Free memory was 234.1 MB in the beginning and 309.3 MB in the end (delta: -75.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.94 ms. Allocated memory is still 346.0 MB. Free memory was 309.3 MB in the beginning and 307.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.05 ms. Allocated memory is still 346.0 MB. Free memory was 307.3 MB in the beginning and 305.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 344.18 ms. Allocated memory is still 346.0 MB. Free memory was 305.9 MB in the beginning and 320.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7645.69 ms. Allocated memory was 346.0 MB in the beginning and 1.3 GB in the end (delta: 933.2 MB). Free memory was 320.1 MB in the beginning and 941.9 MB in the end (delta: -621.8 MB). Peak memory consumption was 310.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 7556.7ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 6104.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 254 SDtfs, 555 SDslu, 818 SDs, 0 SdLazy, 771 SolverSat, 206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 434.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1377.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred in iteration=11, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.7ms SsaConstructionTime, 187.1ms SatisfiabilityAnalysisTime, 996.2ms InterpolantComputationTime, 699 NumberOfCodeBlocks, 699 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 685 ConstructedInterpolants, 0 QuantifiedInterpolants, 2885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...