/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_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:33:27,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:33:27,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:33:27,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 02:33:27,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:33:27,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:33:27,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:33:27,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:33:27,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:33:27,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:33:27,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:33:27,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:33:27,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:33:27,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:33:27,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:33:27,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:33:27,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:33:27,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:33:27,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:33:27,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:33:27,394 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 02:33:27,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:33:27,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:33:27,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:33:27,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:33:27,412 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:33:27,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:33:27,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:33:27,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:33:27,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:33:27,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:33:27,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:33:27,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:33:27,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:33:27,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:33:27,415 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:33:27,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:33:27,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:33:27,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:33:27,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:33:27,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:33:27,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:33:27,659 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:33:27,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-03-11 02:33:27,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a6bc05f/4a96c51c3ba84d46bb13e6097e0a0a4b/FLAGf3f9efe60 [2021-03-11 02:33:28,132 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:33:28,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-03-11 02:33:28,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a6bc05f/4a96c51c3ba84d46bb13e6097e0a0a4b/FLAGf3f9efe60 [2021-03-11 02:33:28,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a6bc05f/4a96c51c3ba84d46bb13e6097e0a0a4b [2021-03-11 02:33:28,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:33:28,159 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:33:28,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:33:28,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:33:28,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:33:28,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682dd76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28, skipping insertion in model container [2021-03-11 02:33:28,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:33:28,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:33:28,337 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_tso.oepc.i[950,963] [2021-03-11 02:33:28,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:33:28,504 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:33:28,513 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_tso.oepc.i[950,963] [2021-03-11 02:33:28,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:33:28,581 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:33:28,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28 WrapperNode [2021-03-11 02:33:28,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:33:28,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:33:28,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:33:28,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:33:28,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:33:28,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:33:28,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:33:28,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:33:28,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (1/1) ... [2021-03-11 02:33:28,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:33:28,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:33:28,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:33:28,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:33:28,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (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 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:33:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:33:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:33:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:33:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:33:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 02:33:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 02:33:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:33:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:33:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:33:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:33:28,709 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 02:33:29,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:33:29,043 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:33:29,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:29 BoogieIcfgContainer [2021-03-11 02:33:29,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:33:29,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:33:29,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:33:29,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:33:29,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:33:28" (1/3) ... [2021-03-11 02:33:29,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56354fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:29, skipping insertion in model container [2021-03-11 02:33:29,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:28" (2/3) ... [2021-03-11 02:33:29,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56354fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:29, skipping insertion in model container [2021-03-11 02:33:29,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:29" (3/3) ... [2021-03-11 02:33:29,048 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2021-03-11 02:33:29,052 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:33:29,055 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:33:29,055 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:33:29,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,083 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,083 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,083 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,083 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,083 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,085 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,085 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,094 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,096 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,096 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,100 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,100 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,100 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,100 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:29,104 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:33:29,115 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 02:33:29,127 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:33:29,127 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:33:29,127 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:33:29,127 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:33:29,127 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:33:29,127 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:33:29,128 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:33:29,128 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:33:29,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 02:33:29,159 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-03-11 02:33:29,159 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:29,161 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 02:33:29,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 02:33:29,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-03-11 02:33:29,174 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2021-03-11 02:33:29,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:29,174 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:29,175 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 02:33:29,175 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:29,178 INFO L82 PathProgramCache]: Analyzing trace with hash -898252917, now seen corresponding path program 1 times [2021-03-11 02:33:29,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:29,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515163384] [2021-03-11 02:33:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:29,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:29,410 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:29,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:29,423 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:29,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:29,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:29,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:29,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:29,455 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 02:33:29,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515163384] [2021-03-11 02:33:29,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:29,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:29,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857755485] [2021-03-11 02:33:29,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:29,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:29,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:29,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:29,489 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:29,491 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 02:33:29,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:29,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:29,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:29,855 INFO L129 PetriNetUnfolder]: 996/2296 cut-off events. [2021-03-11 02:33:29,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:29,861 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 02:33:29,867 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 19 selfloop transitions, 7 changer transitions 43/119 dead transitions. [2021-03-11 02:33:29,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 119 transitions, 388 flow [2021-03-11 02:33:29,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:29,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 658 transitions. [2021-03-11 02:33:29,876 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8601307189542484 [2021-03-11 02:33:29,876 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 658 transitions. [2021-03-11 02:33:29,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 658 transitions. [2021-03-11 02:33:29,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:29,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 658 transitions. [2021-03-11 02:33:29,882 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 02:33:29,886 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 02:33:29,887 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 02:33:29,888 INFO L185 Difference]: Start difference. First operand has 79 places, 67 transitions, 146 flow. Second operand 9 states and 658 transitions. [2021-03-11 02:33:29,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 119 transitions, 388 flow [2021-03-11 02:33:29,890 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 02:33:29,892 INFO L241 Difference]: Finished difference. Result has 91 places, 72 transitions, 242 flow [2021-03-11 02:33:29,894 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 02:33:29,894 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-03-11 02:33:29,894 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 72 transitions, 242 flow [2021-03-11 02:33:29,894 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 02:33:29,894 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:29,895 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 02:33:29,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:33:29,895 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:29,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:29,895 INFO L82 PathProgramCache]: Analyzing trace with hash 96521420, now seen corresponding path program 1 times [2021-03-11 02:33:29,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:29,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628347582] [2021-03-11 02:33:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:29,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:29,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:29,935 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:29,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:29,942 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:29,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:29,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:29,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:29,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:29,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:29,968 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 02:33:29,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628347582] [2021-03-11 02:33:29,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:29,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:29,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814799927] [2021-03-11 02:33:29,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:29,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:29,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:29,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:29,971 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:29,971 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 02:33:29,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:29,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:29,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:30,310 INFO L129 PetriNetUnfolder]: 712/1856 cut-off events. [2021-03-11 02:33:30,311 INFO L130 PetriNetUnfolder]: For 3574/4899 co-relation queries the response was YES. [2021-03-11 02:33:30,318 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 02:33:30,341 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 25 selfloop transitions, 12 changer transitions 76/163 dead transitions. [2021-03-11 02:33:30,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 163 transitions, 1148 flow [2021-03-11 02:33:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2021-03-11 02:33:30,344 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8542986425339366 [2021-03-11 02:33:30,344 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2021-03-11 02:33:30,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2021-03-11 02:33:30,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:30,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2021-03-11 02:33:30,346 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 02:33:30,347 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 02:33:30,348 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 02:33:30,348 INFO L185 Difference]: Start difference. First operand has 91 places, 72 transitions, 242 flow. Second operand 13 states and 944 transitions. [2021-03-11 02:33:30,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 163 transitions, 1148 flow [2021-03-11 02:33:30,362 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 02:33:30,365 INFO L241 Difference]: Finished difference. Result has 107 places, 80 transitions, 388 flow [2021-03-11 02:33:30,365 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 02:33:30,366 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2021-03-11 02:33:30,366 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 80 transitions, 388 flow [2021-03-11 02:33:30,366 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 02:33:30,366 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:30,366 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 02:33:30,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:33:30,367 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:30,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:30,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1185349420, now seen corresponding path program 1 times [2021-03-11 02:33:30,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:30,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438534449] [2021-03-11 02:33:30,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:30,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:30,442 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:30,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:30,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:30,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:30,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:30,472 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 02:33:30,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438534449] [2021-03-11 02:33:30,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:30,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:30,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46462506] [2021-03-11 02:33:30,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:30,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:30,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:30,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:30,479 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:30,479 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 02:33:30,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:30,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:30,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:30,656 INFO L129 PetriNetUnfolder]: 315/945 cut-off events. [2021-03-11 02:33:30,656 INFO L130 PetriNetUnfolder]: For 5024/6028 co-relation queries the response was YES. [2021-03-11 02:33:30,659 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 02:33:30,662 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 17 selfloop transitions, 7 changer transitions 40/128 dead transitions. [2021-03-11 02:33:30,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 128 transitions, 956 flow [2021-03-11 02:33:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:30,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:30,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2021-03-11 02:33:30,663 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8875816993464052 [2021-03-11 02:33:30,663 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2021-03-11 02:33:30,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2021-03-11 02:33:30,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:30,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2021-03-11 02:33:30,665 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 02:33:30,666 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 02:33:30,666 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 02:33:30,667 INFO L185 Difference]: Start difference. First operand has 107 places, 80 transitions, 388 flow. Second operand 9 states and 679 transitions. [2021-03-11 02:33:30,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 128 transitions, 956 flow [2021-03-11 02:33:30,673 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 02:33:30,675 INFO L241 Difference]: Finished difference. Result has 113 places, 86 transitions, 501 flow [2021-03-11 02:33:30,675 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 02:33:30,675 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 34 predicate places. [2021-03-11 02:33:30,675 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 86 transitions, 501 flow [2021-03-11 02:33:30,675 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 02:33:30,675 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:30,676 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 02:33:30,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:33:30,676 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:30,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:30,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2023888595, now seen corresponding path program 1 times [2021-03-11 02:33:30,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:30,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377558175] [2021-03-11 02:33:30,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:30,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:30,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:30,727 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:30,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:30,734 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:30,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:30,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:30,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:30,758 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 02:33:30,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377558175] [2021-03-11 02:33:30,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:30,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:30,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031528387] [2021-03-11 02:33:30,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:30,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:30,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:30,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:30,760 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:30,760 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 02:33:30,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:30,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:30,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:30,948 INFO L129 PetriNetUnfolder]: 222/746 cut-off events. [2021-03-11 02:33:30,949 INFO L130 PetriNetUnfolder]: For 4991/6813 co-relation queries the response was YES. [2021-03-11 02:33:30,951 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 02:33:30,963 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 33 selfloop transitions, 17 changer transitions 49/149 dead transitions. [2021-03-11 02:33:30,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 149 transitions, 1407 flow [2021-03-11 02:33:30,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 923 transitions. [2021-03-11 02:33:30,966 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8352941176470589 [2021-03-11 02:33:30,966 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 923 transitions. [2021-03-11 02:33:30,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 923 transitions. [2021-03-11 02:33:30,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:30,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 923 transitions. [2021-03-11 02:33:30,968 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 02:33:30,969 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 02:33:30,969 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 02:33:30,969 INFO L185 Difference]: Start difference. First operand has 113 places, 86 transitions, 501 flow. Second operand 13 states and 923 transitions. [2021-03-11 02:33:30,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 149 transitions, 1407 flow [2021-03-11 02:33:30,976 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 02:33:30,977 INFO L241 Difference]: Finished difference. Result has 121 places, 92 transitions, 606 flow [2021-03-11 02:33:30,977 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 02:33:30,978 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 42 predicate places. [2021-03-11 02:33:30,978 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 92 transitions, 606 flow [2021-03-11 02:33:30,978 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 02:33:30,978 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:30,978 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 02:33:30,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:33:30,978 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:30,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:30,979 INFO L82 PathProgramCache]: Analyzing trace with hash -19459011, now seen corresponding path program 1 times [2021-03-11 02:33:30,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:30,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880928691] [2021-03-11 02:33:30,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:31,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:31,008 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:31,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:31,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,031 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 02:33:31,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880928691] [2021-03-11 02:33:31,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:31,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:31,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080132938] [2021-03-11 02:33:31,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:31,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:31,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:31,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:31,037 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:31,039 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 02:33:31,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:31,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:31,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:31,170 INFO L129 PetriNetUnfolder]: 137/625 cut-off events. [2021-03-11 02:33:31,171 INFO L130 PetriNetUnfolder]: For 5196/6357 co-relation queries the response was YES. [2021-03-11 02:33:31,173 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 02:33:31,175 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 20 selfloop transitions, 8 changer transitions 20/116 dead transitions. [2021-03-11 02:33:31,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 116 transitions, 1014 flow [2021-03-11 02:33:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 673 transitions. [2021-03-11 02:33:31,177 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8797385620915033 [2021-03-11 02:33:31,177 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 673 transitions. [2021-03-11 02:33:31,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 673 transitions. [2021-03-11 02:33:31,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:31,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 673 transitions. [2021-03-11 02:33:31,179 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 02:33:31,181 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 02:33:31,181 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 02:33:31,181 INFO L185 Difference]: Start difference. First operand has 121 places, 92 transitions, 606 flow. Second operand 9 states and 673 transitions. [2021-03-11 02:33:31,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 116 transitions, 1014 flow [2021-03-11 02:33:31,189 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 02:33:31,190 INFO L241 Difference]: Finished difference. Result has 123 places, 91 transitions, 606 flow [2021-03-11 02:33:31,191 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 02:33:31,191 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-03-11 02:33:31,191 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 91 transitions, 606 flow [2021-03-11 02:33:31,191 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 02:33:31,191 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:31,191 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 02:33:31,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:33:31,192 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:31,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:31,192 INFO L82 PathProgramCache]: Analyzing trace with hash 327710936, now seen corresponding path program 1 times [2021-03-11 02:33:31,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:31,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714978008] [2021-03-11 02:33:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:31,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:31,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:31,263 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:31,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:31,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,291 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 02:33:31,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714978008] [2021-03-11 02:33:31,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:31,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:31,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976024728] [2021-03-11 02:33:31,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:31,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:31,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:31,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:31,293 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:31,294 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 02:33:31,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:31,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:31,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:31,406 INFO L129 PetriNetUnfolder]: 161/660 cut-off events. [2021-03-11 02:33:31,407 INFO L130 PetriNetUnfolder]: For 6877/8139 co-relation queries the response was YES. [2021-03-11 02:33:31,409 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 02:33:31,411 INFO L132 encePairwiseOnDemand]: 76/85 looper letters, 13 selfloop transitions, 7 changer transitions 27/112 dead transitions. [2021-03-11 02:33:31,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 112 transitions, 989 flow [2021-03-11 02:33:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 02:33:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 02:33:31,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 517 transitions. [2021-03-11 02:33:31,413 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8689075630252101 [2021-03-11 02:33:31,413 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 517 transitions. [2021-03-11 02:33:31,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 517 transitions. [2021-03-11 02:33:31,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:31,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 517 transitions. [2021-03-11 02:33:31,414 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 02:33:31,415 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 02:33:31,415 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 02:33:31,415 INFO L185 Difference]: Start difference. First operand has 123 places, 91 transitions, 606 flow. Second operand 7 states and 517 transitions. [2021-03-11 02:33:31,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 112 transitions, 989 flow [2021-03-11 02:33:31,423 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 02:33:31,427 INFO L241 Difference]: Finished difference. Result has 114 places, 84 transitions, 512 flow [2021-03-11 02:33:31,427 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 02:33:31,427 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 35 predicate places. [2021-03-11 02:33:31,427 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 84 transitions, 512 flow [2021-03-11 02:33:31,428 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 02:33:31,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:31,428 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 02:33:31,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:33:31,428 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:31,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2146456244, now seen corresponding path program 2 times [2021-03-11 02:33:31,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:31,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560250064] [2021-03-11 02:33:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:31,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:31,472 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:31,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:31,481 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:31,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:31,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,507 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 02:33:31,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560250064] [2021-03-11 02:33:31,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:31,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:31,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369851441] [2021-03-11 02:33:31,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:31,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:31,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:31,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:31,509 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:31,510 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 02:33:31,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:31,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:31,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:31,673 INFO L129 PetriNetUnfolder]: 106/479 cut-off events. [2021-03-11 02:33:31,673 INFO L130 PetriNetUnfolder]: For 3928/4428 co-relation queries the response was YES. [2021-03-11 02:33:31,675 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 02:33:31,677 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 27 selfloop transitions, 16 changer transitions 32/125 dead transitions. [2021-03-11 02:33:31,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 1237 flow [2021-03-11 02:33:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2021-03-11 02:33:31,678 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8190045248868778 [2021-03-11 02:33:31,678 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 905 transitions. [2021-03-11 02:33:31,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 905 transitions. [2021-03-11 02:33:31,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:31,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 905 transitions. [2021-03-11 02:33:31,680 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 02:33:31,682 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 02:33:31,682 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 02:33:31,682 INFO L185 Difference]: Start difference. First operand has 114 places, 84 transitions, 512 flow. Second operand 13 states and 905 transitions. [2021-03-11 02:33:31,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 1237 flow [2021-03-11 02:33:31,690 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 02:33:31,692 INFO L241 Difference]: Finished difference. Result has 128 places, 86 transitions, 590 flow [2021-03-11 02:33:31,692 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 02:33:31,692 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 49 predicate places. [2021-03-11 02:33:31,692 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 86 transitions, 590 flow [2021-03-11 02:33:31,692 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 02:33:31,692 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:31,692 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 02:33:31,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:33:31,692 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:31,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1765410205, now seen corresponding path program 1 times [2021-03-11 02:33:31,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:31,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305785296] [2021-03-11 02:33:31,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:31,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:31,738 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:31,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:31,745 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:31,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:31,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:31,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:31,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:31,770 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 02:33:31,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305785296] [2021-03-11 02:33:31,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:31,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:31,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094212145] [2021-03-11 02:33:31,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:31,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:31,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:31,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:31,772 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:31,772 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 02:33:31,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:31,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:31,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:32,002 INFO L129 PetriNetUnfolder]: 71/457 cut-off events. [2021-03-11 02:33:32,002 INFO L130 PetriNetUnfolder]: For 4545/4993 co-relation queries the response was YES. [2021-03-11 02:33:32,004 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 02:33:32,006 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 29 selfloop transitions, 16 changer transitions 26/121 dead transitions. [2021-03-11 02:33:32,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 121 transitions, 1284 flow [2021-03-11 02:33:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 899 transitions. [2021-03-11 02:33:32,008 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8135746606334842 [2021-03-11 02:33:32,008 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 899 transitions. [2021-03-11 02:33:32,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 899 transitions. [2021-03-11 02:33:32,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:32,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 899 transitions. [2021-03-11 02:33:32,010 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 02:33:32,011 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 02:33:32,011 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 02:33:32,011 INFO L185 Difference]: Start difference. First operand has 128 places, 86 transitions, 590 flow. Second operand 13 states and 899 transitions. [2021-03-11 02:33:32,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 121 transitions, 1284 flow [2021-03-11 02:33:32,017 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 02:33:32,019 INFO L241 Difference]: Finished difference. Result has 132 places, 85 transitions, 636 flow [2021-03-11 02:33:32,019 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 02:33:32,019 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 53 predicate places. [2021-03-11 02:33:32,019 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 85 transitions, 636 flow [2021-03-11 02:33:32,020 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 02:33:32,020 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:32,020 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 02:33:32,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:33:32,020 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:32,020 INFO L82 PathProgramCache]: Analyzing trace with hash -473505393, now seen corresponding path program 1 times [2021-03-11 02:33:32,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:32,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659194114] [2021-03-11 02:33:32,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:32,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:32,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:32,059 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:32,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:32,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:32,078 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:32,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:32,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:32,086 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 02:33:32,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659194114] [2021-03-11 02:33:32,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:32,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:32,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573780349] [2021-03-11 02:33:32,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:32,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:32,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:32,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:32,088 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:32,089 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 02:33:32,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:32,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:32,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:32,517 INFO L129 PetriNetUnfolder]: 2176/4165 cut-off events. [2021-03-11 02:33:32,517 INFO L130 PetriNetUnfolder]: For 9308/9578 co-relation queries the response was YES. [2021-03-11 02:33:32,537 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 02:33:32,548 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 29 selfloop transitions, 20 changer transitions 0/122 dead transitions. [2021-03-11 02:33:32,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 122 transitions, 808 flow [2021-03-11 02:33:32,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:33:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:33:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 751 transitions. [2021-03-11 02:33:32,550 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8835294117647059 [2021-03-11 02:33:32,550 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 751 transitions. [2021-03-11 02:33:32,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 751 transitions. [2021-03-11 02:33:32,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:32,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 751 transitions. [2021-03-11 02:33:32,551 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 02:33:32,552 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 02:33:32,553 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 02:33:32,553 INFO L185 Difference]: Start difference. First operand has 132 places, 85 transitions, 636 flow. Second operand 10 states and 751 transitions. [2021-03-11 02:33:32,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 122 transitions, 808 flow [2021-03-11 02:33:32,564 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 02:33:32,565 INFO L241 Difference]: Finished difference. Result has 126 places, 103 transitions, 714 flow [2021-03-11 02:33:32,566 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 02:33:32,566 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 47 predicate places. [2021-03-11 02:33:32,566 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 103 transitions, 714 flow [2021-03-11 02:33:32,566 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 02:33:32,566 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:32,566 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 02:33:32,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 02:33:32,566 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:32,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:32,567 INFO L82 PathProgramCache]: Analyzing trace with hash 890967367, now seen corresponding path program 1 times [2021-03-11 02:33:32,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:32,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119456459] [2021-03-11 02:33:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:32,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:32,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:32,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:32,598 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:32,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:32,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:32,616 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:32,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:32,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:32,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:32,623 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 02:33:32,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119456459] [2021-03-11 02:33:32,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:32,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:32,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287481310] [2021-03-11 02:33:32,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:32,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:32,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:32,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:32,625 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:32,625 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 02:33:32,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:32,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:32,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:33,127 INFO L129 PetriNetUnfolder]: 2430/4729 cut-off events. [2021-03-11 02:33:33,127 INFO L130 PetriNetUnfolder]: For 17134/21430 co-relation queries the response was YES. [2021-03-11 02:33:33,149 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 02:33:33,164 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 34 selfloop transitions, 38 changer transitions 0/145 dead transitions. [2021-03-11 02:33:33,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 145 transitions, 1138 flow [2021-03-11 02:33:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 978 transitions. [2021-03-11 02:33:33,167 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8850678733031674 [2021-03-11 02:33:33,167 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 978 transitions. [2021-03-11 02:33:33,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 978 transitions. [2021-03-11 02:33:33,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:33,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 978 transitions. [2021-03-11 02:33:33,170 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 02:33:33,171 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 02:33:33,171 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 02:33:33,171 INFO L185 Difference]: Start difference. First operand has 126 places, 103 transitions, 714 flow. Second operand 13 states and 978 transitions. [2021-03-11 02:33:33,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 145 transitions, 1138 flow [2021-03-11 02:33:33,191 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 02:33:33,193 INFO L241 Difference]: Finished difference. Result has 138 places, 123 transitions, 961 flow [2021-03-11 02:33:33,193 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 02:33:33,194 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 59 predicate places. [2021-03-11 02:33:33,194 INFO L480 AbstractCegarLoop]: Abstraction has has 138 places, 123 transitions, 961 flow [2021-03-11 02:33:33,194 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 02:33:33,194 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:33,194 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 02:33:33,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 02:33:33,194 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:33,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:33,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1307484186, now seen corresponding path program 1 times [2021-03-11 02:33:33,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:33,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627153110] [2021-03-11 02:33:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:33,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:33,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:33,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:33,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:33,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:33,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:33,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:33,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:33,243 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:33,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:33,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:33,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:33,264 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:33,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:33,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:33,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:33,272 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 02:33:33,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627153110] [2021-03-11 02:33:33,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:33,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:33,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531161714] [2021-03-11 02:33:33,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:33,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:33,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:33,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:33,273 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:33,274 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 02:33:33,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:33,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:33,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:33,879 INFO L129 PetriNetUnfolder]: 2493/4915 cut-off events. [2021-03-11 02:33:33,879 INFO L130 PetriNetUnfolder]: For 47266/57908 co-relation queries the response was YES. [2021-03-11 02:33:33,901 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 02:33:33,912 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 28 selfloop transitions, 58 changer transitions 12/171 dead transitions. [2021-03-11 02:33:33,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 171 transitions, 1663 flow [2021-03-11 02:33:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 02:33:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 02:33:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1205 transitions. [2021-03-11 02:33:33,917 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8860294117647058 [2021-03-11 02:33:33,917 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1205 transitions. [2021-03-11 02:33:33,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1205 transitions. [2021-03-11 02:33:33,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:33,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1205 transitions. [2021-03-11 02:33:33,918 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 02:33:33,920 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 02:33:33,920 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 02:33:33,920 INFO L185 Difference]: Start difference. First operand has 138 places, 123 transitions, 961 flow. Second operand 16 states and 1205 transitions. [2021-03-11 02:33:33,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 171 transitions, 1663 flow [2021-03-11 02:33:34,058 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 02:33:34,060 INFO L241 Difference]: Finished difference. Result has 153 places, 149 transitions, 1321 flow [2021-03-11 02:33:34,060 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 02:33:34,060 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 74 predicate places. [2021-03-11 02:33:34,060 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 1321 flow [2021-03-11 02:33:34,061 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 02:33:34,061 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:34,061 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 02:33:34,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 02:33:34,061 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:34,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:34,061 INFO L82 PathProgramCache]: Analyzing trace with hash -623106855, now seen corresponding path program 1 times [2021-03-11 02:33:34,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:34,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636828364] [2021-03-11 02:33:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:34,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:34,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:34,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:34,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:34,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:34,084 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:34,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:34,092 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:34,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:34,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:34,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:34,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:34,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:34,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:34,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:34,119 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 02:33:34,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636828364] [2021-03-11 02:33:34,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:34,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:34,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768338991] [2021-03-11 02:33:34,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:34,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:34,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:34,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:34,120 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:34,121 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 02:33:34,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:34,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:34,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:34,594 INFO L129 PetriNetUnfolder]: 1694/4670 cut-off events. [2021-03-11 02:33:34,594 INFO L130 PetriNetUnfolder]: For 36281/37683 co-relation queries the response was YES. [2021-03-11 02:33:34,612 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 02:33:34,617 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 32 selfloop transitions, 19 changer transitions 8/173 dead transitions. [2021-03-11 02:33:34,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 173 transitions, 1684 flow [2021-03-11 02:33:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:34,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 630 transitions. [2021-03-11 02:33:34,620 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2021-03-11 02:33:34,620 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 630 transitions. [2021-03-11 02:33:34,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 630 transitions. [2021-03-11 02:33:34,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:34,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 630 transitions. [2021-03-11 02:33:34,623 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 02:33:34,624 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 02:33:34,624 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 02:33:34,625 INFO L185 Difference]: Start difference. First operand has 153 places, 149 transitions, 1321 flow. Second operand 9 states and 630 transitions. [2021-03-11 02:33:34,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 173 transitions, 1684 flow [2021-03-11 02:33:35,183 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 02:33:35,186 INFO L241 Difference]: Finished difference. Result has 154 places, 153 transitions, 1149 flow [2021-03-11 02:33:35,186 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 02:33:35,186 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 75 predicate places. [2021-03-11 02:33:35,186 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 153 transitions, 1149 flow [2021-03-11 02:33:35,186 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 02:33:35,186 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:35,186 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 02:33:35,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 02:33:35,186 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:35,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:35,187 INFO L82 PathProgramCache]: Analyzing trace with hash -573941373, now seen corresponding path program 2 times [2021-03-11 02:33:35,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:35,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16400900] [2021-03-11 02:33:35,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:35,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:35,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:35,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:35,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:35,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:35,215 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:35,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:35,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:35,233 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:35,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:35,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:35,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:35,240 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 02:33:35,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16400900] [2021-03-11 02:33:35,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:35,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 02:33:35,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880783601] [2021-03-11 02:33:35,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 02:33:35,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:35,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 02:33:35,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-11 02:33:35,241 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:35,242 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 02:33:35,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:35,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:35,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:35,963 INFO L129 PetriNetUnfolder]: 2729/5643 cut-off events. [2021-03-11 02:33:35,964 INFO L130 PetriNetUnfolder]: For 12068/17398 co-relation queries the response was YES. [2021-03-11 02:33:35,985 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 02:33:35,989 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 4 selfloop transitions, 19 changer transitions 110/188 dead transitions. [2021-03-11 02:33:35,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 188 transitions, 1610 flow [2021-03-11 02:33:35,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:33:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:33:35,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1412 transitions. [2021-03-11 02:33:35,992 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8743034055727554 [2021-03-11 02:33:35,992 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1412 transitions. [2021-03-11 02:33:35,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1412 transitions. [2021-03-11 02:33:35,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:35,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1412 transitions. [2021-03-11 02:33:35,994 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 02:33:35,995 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 02:33:35,996 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 02:33:35,996 INFO L185 Difference]: Start difference. First operand has 154 places, 153 transitions, 1149 flow. Second operand 19 states and 1412 transitions. [2021-03-11 02:33:35,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 188 transitions, 1610 flow [2021-03-11 02:33:36,171 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 02:33:36,173 INFO L241 Difference]: Finished difference. Result has 165 places, 78 transitions, 442 flow [2021-03-11 02:33:36,173 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 02:33:36,173 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 86 predicate places. [2021-03-11 02:33:36,173 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 78 transitions, 442 flow [2021-03-11 02:33:36,173 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 02:33:36,173 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:36,173 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 02:33:36,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 02:33:36,174 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:36,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1402755260, now seen corresponding path program 1 times [2021-03-11 02:33:36,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:36,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213252598] [2021-03-11 02:33:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:36,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:36,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:36,198 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:36,205 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:36,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:36,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:36,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:36,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:36,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:36,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:36,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:36,228 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 02:33:36,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213252598] [2021-03-11 02:33:36,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:36,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:36,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771737535] [2021-03-11 02:33:36,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:36,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:36,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:36,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:36,230 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:36,231 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 02:33:36,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:36,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:36,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:36,279 INFO L129 PetriNetUnfolder]: 28/161 cut-off events. [2021-03-11 02:33:36,279 INFO L130 PetriNetUnfolder]: For 410/452 co-relation queries the response was YES. [2021-03-11 02:33:36,280 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 02:33:36,280 INFO L132 encePairwiseOnDemand]: 76/85 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2021-03-11 02:33:36,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 79 transitions, 519 flow [2021-03-11 02:33:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:33:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:33:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 540 transitions. [2021-03-11 02:33:36,281 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-11 02:33:36,281 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 540 transitions. [2021-03-11 02:33:36,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 540 transitions. [2021-03-11 02:33:36,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:36,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 540 transitions. [2021-03-11 02:33:36,282 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 02:33:36,282 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 02:33:36,283 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 02:33:36,283 INFO L185 Difference]: Start difference. First operand has 165 places, 78 transitions, 442 flow. Second operand 8 states and 540 transitions. [2021-03-11 02:33:36,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 79 transitions, 519 flow [2021-03-11 02:33:36,284 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 02:33:36,284 INFO L241 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2021-03-11 02:33:36,285 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 02:33:36,285 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-03-11 02:33:36,285 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2021-03-11 02:33:36,285 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 02:33:36,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 02:33:36,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:33:36 BasicIcfg [2021-03-11 02:33:36,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:33:36,289 INFO L168 Benchmark]: Toolchain (without parser) took 8131.45 ms. Allocated memory was 255.9 MB in the beginning and 706.7 MB in the end (delta: 450.9 MB). Free memory was 236.0 MB in the beginning and 409.3 MB in the end (delta: -173.3 MB). Peak memory consumption was 279.7 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:36,289 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 255.9 MB. Free memory is still 238.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:33:36,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.02 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 235.3 MB in the beginning and 315.0 MB in the end (delta: -79.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:36,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 352.3 MB. Free memory was 315.0 MB in the beginning and 313.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:36,289 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 ms. Allocated memory is still 352.3 MB. Free memory was 313.3 MB in the beginning and 311.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:36,289 INFO L168 Benchmark]: RCFGBuilder took 392.63 ms. Allocated memory is still 352.3 MB. Free memory was 311.7 MB in the beginning and 325.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:36,289 INFO L168 Benchmark]: TraceAbstraction took 7243.49 ms. Allocated memory was 352.3 MB in the beginning and 706.7 MB in the end (delta: 354.4 MB). Free memory was 325.2 MB in the beginning and 409.3 MB in the end (delta: -84.0 MB). Peak memory consumption was 272.5 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:36,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 255.9 MB. Free memory is still 238.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 420.02 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 235.3 MB in the beginning and 315.0 MB in the end (delta: -79.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 352.3 MB. Free memory was 315.0 MB in the beginning and 313.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.00 ms. Allocated memory is still 352.3 MB. Free memory was 313.3 MB in the beginning and 311.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 392.63 ms. Allocated memory is still 352.3 MB. Free memory was 311.7 MB in the beginning and 325.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7243.49 ms. Allocated memory was 352.3 MB in the beginning and 706.7 MB in the end (delta: 354.4 MB). Free memory was 325.2 MB in the beginning and 409.3 MB in the end (delta: -84.0 MB). Peak memory consumption was 272.5 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: 10.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 7160.4ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5830.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 36.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 254 SDtfs, 555 SDslu, 818 SDs, 0 SdLazy, 771 SolverSat, 206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 464.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1452.6ms 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: 28.3ms SsaConstructionTime, 158.3ms SatisfiabilityAnalysisTime, 934.1ms 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...