/usr/bin/java -Xmx8000000000 -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-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 06:05:28,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 06:05:28,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 06:05:28,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 06:05:28,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 06:05:28,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 06:05:28,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 06:05:28,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 06:05:28,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 06:05:28,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 06:05:28,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 06:05:28,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 06:05:28,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 06:05:28,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 06:05:28,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 06:05:28,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 06:05:28,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 06:05:28,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 06:05:28,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 06:05:28,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 06:05:28,687 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-OGIterative-CovSimpl.epf [2021-08-13 06:05:28,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 06:05:28,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 06:05:28,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 06:05:28,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 06:05:28,718 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 06:05:28,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 06:05:28,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 06:05:28,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 06:05:28,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 06:05:28,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 06:05:28,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 06:05:28,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 06:05:28,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 06:05:28,719 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 06:05:28,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 06:05:28,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 06:05:28,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 06:05:28,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 06:05:28,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 06:05:28,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 06:05:28,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 06:05:28,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 06:05:28,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 06:05:28,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 06:05:28,721 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 06:05:28,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 06:05:29,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 06:05:29,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 06:05:29,015 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 06:05:29,016 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 06:05:29,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-08-13 06:05:29,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84417851/ccd015131c49458d82b4cd0671c657fd/FLAGf54a54ddb [2021-08-13 06:05:29,440 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 06:05:29,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-08-13 06:05:29,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84417851/ccd015131c49458d82b4cd0671c657fd/FLAGf54a54ddb [2021-08-13 06:05:29,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84417851/ccd015131c49458d82b4cd0671c657fd [2021-08-13 06:05:29,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 06:05:29,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 06:05:29,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 06:05:29,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 06:05:29,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 06:05:29,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 06:05:29" (1/1) ... [2021-08-13 06:05:29,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567b7708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:29, skipping insertion in model container [2021-08-13 06:05:29,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 06:05:29" (1/1) ... [2021-08-13 06:05:29,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 06:05:29,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 06:05:29,969 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i[949,962] [2021-08-13 06:05:30,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 06:05:30,129 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 06:05:30,168 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i[949,962] [2021-08-13 06:05:30,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 06:05:30,234 INFO L208 MainTranslator]: Completed translation [2021-08-13 06:05:30,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30 WrapperNode [2021-08-13 06:05:30,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 06:05:30,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 06:05:30,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 06:05:30,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 06:05:30,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 06:05:30,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 06:05:30,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 06:05:30,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 06:05:30,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (1/1) ... [2021-08-13 06:05:30,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 06:05:30,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 06:05:30,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 06:05:30,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 06:05:30,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (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 [2021-08-13 06:05:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 06:05:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 06:05:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 06:05:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 06:05:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 06:05:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 06:05:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 06:05:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 06:05:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 06:05:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 06:05:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 06:05:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 06:05:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 06:05:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 06:05:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 06:05:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 06:05:30,350 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 06:05:30,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 06:05:30,761 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 06:05:30,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:05:30 BoogieIcfgContainer [2021-08-13 06:05:30,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 06:05:30,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 06:05:30,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 06:05:30,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 06:05:30,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 06:05:29" (1/3) ... [2021-08-13 06:05:30,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488d78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 06:05:30, skipping insertion in model container [2021-08-13 06:05:30,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:05:30" (2/3) ... [2021-08-13 06:05:30,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488d78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 06:05:30, skipping insertion in model container [2021-08-13 06:05:30,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:05:30" (3/3) ... [2021-08-13 06:05:30,768 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-08-13 06:05:30,772 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 06:05:30,772 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 06:05:30,773 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 06:05:30,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,810 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,813 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,813 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,813 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,814 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,814 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,814 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,817 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,817 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,820 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,820 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,822 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,822 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,824 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,824 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 06:05:30,825 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 06:05:30,842 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 06:05:30,861 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 06:05:30,861 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 06:05:30,861 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 06:05:30,861 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 06:05:30,861 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 06:05:30,862 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 06:05:30,862 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 06:05:30,862 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 06:05:30,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 98 transitions, 216 flow [2021-08-13 06:05:30,899 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-08-13 06:05:30,900 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 06:05:30,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2021-08-13 06:05:30,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 98 transitions, 216 flow [2021-08-13 06:05:30,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 80 transitions, 172 flow [2021-08-13 06:05:30,926 INFO L129 PetriNetUnfolder]: 1/79 cut-off events. [2021-08-13 06:05:30,926 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 06:05:30,927 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:30,927 INFO L266 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] [2021-08-13 06:05:30,927 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:30,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:30,934 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-08-13 06:05:30,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:30,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201365615] [2021-08-13 06:05:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:31,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:31,217 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:31,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:31,231 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:31,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:31,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:31,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:31,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:31,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201365615] [2021-08-13 06:05:31,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201365615] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:31,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:31,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 06:05:31,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73622683] [2021-08-13 06:05:31,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 06:05:31,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:31,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 06:05:31,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 06:05:31,304 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 06:05:31,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2021-08-13 06:05:31,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:31,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 06:05:31,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:31,673 INFO L129 PetriNetUnfolder]: 321/833 cut-off events. [2021-08-13 06:05:31,673 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 06:05:31,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 833 events. 321/833 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5143 event pairs, 112 based on Foata normal form. 27/830 useless extension candidates. Maximal degree in co-relation 1362. Up to 259 conditions per place. [2021-08-13 06:05:31,685 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 15 selfloop transitions, 8 changer transitions 34/121 dead transitions. [2021-08-13 06:05:31,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 121 transitions, 368 flow [2021-08-13 06:05:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 06:05:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 06:05:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 772 transitions. [2021-08-13 06:05:31,697 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8752834467120182 [2021-08-13 06:05:31,697 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 772 transitions. [2021-08-13 06:05:31,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 772 transitions. [2021-08-13 06:05:31,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:31,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 772 transitions. [2021-08-13 06:05:31,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.77777777777777) internal successors, (772), 9 states have internal predecessors, (772), 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) [2021-08-13 06:05:31,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-08-13 06:05:31,719 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-08-13 06:05:31,720 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 8 predicate places. [2021-08-13 06:05:31,720 INFO L482 AbstractCegarLoop]: Abstraction has has 100 places, 121 transitions, 368 flow [2021-08-13 06:05:31,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2021-08-13 06:05:31,721 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:31,721 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:31,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 06:05:31,721 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1282702817, now seen corresponding path program 1 times [2021-08-13 06:05:31,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:31,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925502879] [2021-08-13 06:05:31,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:31,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:31,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:31,867 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:31,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:31,878 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:31,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:31,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:31,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:31,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:31,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:31,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:31,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925502879] [2021-08-13 06:05:31,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925502879] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:31,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:31,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 06:05:31,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088762312] [2021-08-13 06:05:31,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 06:05:31,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:31,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 06:05:31,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 06:05:31,933 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 06:05:31,933 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 121 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-08-13 06:05:31,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:31,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 06:05:31,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:32,223 INFO L129 PetriNetUnfolder]: 350/997 cut-off events. [2021-08-13 06:05:32,223 INFO L130 PetriNetUnfolder]: For 39/575 co-relation queries the response was YES. [2021-08-13 06:05:32,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 997 events. 350/997 cut-off events. For 39/575 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6865 event pairs, 1 based on Foata normal form. 25/996 useless extension candidates. Maximal degree in co-relation 2217. Up to 317 conditions per place. [2021-08-13 06:05:32,231 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 19 selfloop transitions, 11 changer transitions 111/205 dead transitions. [2021-08-13 06:05:32,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 205 transitions, 986 flow [2021-08-13 06:05:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 06:05:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 06:05:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1107 transitions. [2021-08-13 06:05:32,234 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.868916797488226 [2021-08-13 06:05:32,234 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1107 transitions. [2021-08-13 06:05:32,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1107 transitions. [2021-08-13 06:05:32,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:32,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1107 transitions. [2021-08-13 06:05:32,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 85.15384615384616) internal successors, (1107), 13 states have internal predecessors, (1107), 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) [2021-08-13 06:05:32,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:32,240 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:32,240 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 20 predicate places. [2021-08-13 06:05:32,240 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 205 transitions, 986 flow [2021-08-13 06:05:32,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-08-13 06:05:32,241 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:32,241 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:32,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 06:05:32,241 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:32,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1174288383, now seen corresponding path program 1 times [2021-08-13 06:05:32,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:32,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492239526] [2021-08-13 06:05:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:32,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:32,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:32,312 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:32,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:32,319 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:32,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:32,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:32,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:32,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:32,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:32,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492239526] [2021-08-13 06:05:32,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492239526] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:32,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:32,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 06:05:32,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111334166] [2021-08-13 06:05:32,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 06:05:32,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:32,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 06:05:32,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 06:05:32,373 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 06:05:32,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 205 transitions, 986 flow. Second operand has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-08-13 06:05:32,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:32,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 06:05:32,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:32,640 INFO L129 PetriNetUnfolder]: 413/1255 cut-off events. [2021-08-13 06:05:32,641 INFO L130 PetriNetUnfolder]: For 132/1226 co-relation queries the response was YES. [2021-08-13 06:05:32,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3545 conditions, 1255 events. 413/1255 cut-off events. For 132/1226 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 9667 event pairs, 2 based on Foata normal form. 25/1259 useless extension candidates. Maximal degree in co-relation 3498. Up to 412 conditions per place. [2021-08-13 06:05:32,647 INFO L132 encePairwiseOnDemand]: 89/98 looper letters, 26 selfloop transitions, 9 changer transitions 228/327 dead transitions. [2021-08-13 06:05:32,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 327 transitions, 2244 flow [2021-08-13 06:05:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 06:05:32,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 06:05:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1095 transitions. [2021-08-13 06:05:32,650 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.859497645211931 [2021-08-13 06:05:32,650 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1095 transitions. [2021-08-13 06:05:32,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1095 transitions. [2021-08-13 06:05:32,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:32,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1095 transitions. [2021-08-13 06:05:32,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.23076923076923) internal successors, (1095), 13 states have internal predecessors, (1095), 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) [2021-08-13 06:05:32,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:32,654 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:32,654 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 32 predicate places. [2021-08-13 06:05:32,654 INFO L482 AbstractCegarLoop]: Abstraction has has 124 places, 327 transitions, 2244 flow [2021-08-13 06:05:32,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-08-13 06:05:32,655 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:32,655 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:32,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 06:05:32,655 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:32,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:32,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1108288162, now seen corresponding path program 1 times [2021-08-13 06:05:32,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:32,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818278749] [2021-08-13 06:05:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:32,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:32,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:32,731 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:32,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:32,744 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:32,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:32,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:32,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:32,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:32,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:32,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:32,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818278749] [2021-08-13 06:05:32,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818278749] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:32,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:32,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 06:05:32,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62433128] [2021-08-13 06:05:32,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 06:05:32,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:32,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 06:05:32,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 06:05:32,774 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 06:05:32,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 327 transitions, 2244 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2021-08-13 06:05:32,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:32,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 06:05:32,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:33,090 INFO L129 PetriNetUnfolder]: 490/1481 cut-off events. [2021-08-13 06:05:33,090 INFO L130 PetriNetUnfolder]: For 286/2359 co-relation queries the response was YES. [2021-08-13 06:05:33,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5214 conditions, 1481 events. 490/1481 cut-off events. For 286/2359 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 12148 event pairs, 0 based on Foata normal form. 29/1493 useless extension candidates. Maximal degree in co-relation 5161. Up to 520 conditions per place. [2021-08-13 06:05:33,098 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 24 selfloop transitions, 15 changer transitions 366/469 dead transitions. [2021-08-13 06:05:33,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 469 transitions, 4190 flow [2021-08-13 06:05:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 06:05:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 06:05:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1099 transitions. [2021-08-13 06:05:33,100 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8626373626373627 [2021-08-13 06:05:33,100 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1099 transitions. [2021-08-13 06:05:33,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1099 transitions. [2021-08-13 06:05:33,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:33,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1099 transitions. [2021-08-13 06:05:33,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.53846153846153) internal successors, (1099), 13 states have internal predecessors, (1099), 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) [2021-08-13 06:05:33,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:33,106 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:33,106 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 44 predicate places. [2021-08-13 06:05:33,106 INFO L482 AbstractCegarLoop]: Abstraction has has 136 places, 469 transitions, 4190 flow [2021-08-13 06:05:33,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2021-08-13 06:05:33,106 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:33,106 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:33,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 06:05:33,107 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:33,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:33,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1110524869, now seen corresponding path program 1 times [2021-08-13 06:05:33,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:33,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771158586] [2021-08-13 06:05:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:33,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:33,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:33,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:33,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:33,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:33,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:33,183 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:33,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:33,193 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:33,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:33,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:33,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:33,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:33,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:33,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:33,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:33,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:33,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771158586] [2021-08-13 06:05:33,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771158586] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:33,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:33,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 06:05:33,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135846208] [2021-08-13 06:05:33,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 06:05:33,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:33,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 06:05:33,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 06:05:33,228 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 98 [2021-08-13 06:05:33,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 469 transitions, 4190 flow. Second operand has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 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) [2021-08-13 06:05:33,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:33,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 98 [2021-08-13 06:05:33,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:33,973 INFO L129 PetriNetUnfolder]: 1765/4473 cut-off events. [2021-08-13 06:05:33,973 INFO L130 PetriNetUnfolder]: For 2284/13786 co-relation queries the response was YES. [2021-08-13 06:05:33,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17744 conditions, 4473 events. 1765/4473 cut-off events. For 2284/13786 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 43407 event pairs, 0 based on Foata normal form. 39/4473 useless extension candidates. Maximal degree in co-relation 17684. Up to 1423 conditions per place. [2021-08-13 06:05:33,997 INFO L132 encePairwiseOnDemand]: 84/98 looper letters, 30 selfloop transitions, 17 changer transitions 1079/1188 dead transitions. [2021-08-13 06:05:33,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 1188 transitions, 13608 flow [2021-08-13 06:05:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 06:05:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 06:05:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1413 transitions. [2021-08-13 06:05:34,001 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8481392557022809 [2021-08-13 06:05:34,001 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1413 transitions. [2021-08-13 06:05:34,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1413 transitions. [2021-08-13 06:05:34,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:34,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1413 transitions. [2021-08-13 06:05:34,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 83.11764705882354) internal successors, (1413), 17 states have internal predecessors, (1413), 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) [2021-08-13 06:05:34,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 98.0) internal successors, (1764), 18 states have internal predecessors, (1764), 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) [2021-08-13 06:05:34,007 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 98.0) internal successors, (1764), 18 states have internal predecessors, (1764), 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) [2021-08-13 06:05:34,007 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 60 predicate places. [2021-08-13 06:05:34,007 INFO L482 AbstractCegarLoop]: Abstraction has has 152 places, 1188 transitions, 13608 flow [2021-08-13 06:05:34,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 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) [2021-08-13 06:05:34,008 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:34,008 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:34,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 06:05:34,008 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:34,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash 483545202, now seen corresponding path program 1 times [2021-08-13 06:05:34,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:34,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952882158] [2021-08-13 06:05:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:34,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:34,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:34,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:34,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:34,064 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:34,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:34,076 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:34,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:34,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:34,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:34,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:34,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:34,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:34,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:34,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:34,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952882158] [2021-08-13 06:05:34,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952882158] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:34,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:34,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 06:05:34,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899775760] [2021-08-13 06:05:34,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 06:05:34,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:34,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 06:05:34,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 06:05:34,106 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 06:05:34,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 1188 transitions, 13608 flow. Second operand has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 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) [2021-08-13 06:05:34,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:34,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 06:05:34,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:35,046 INFO L129 PetriNetUnfolder]: 1840/4845 cut-off events. [2021-08-13 06:05:35,046 INFO L130 PetriNetUnfolder]: For 3824/36165 co-relation queries the response was YES. [2021-08-13 06:05:35,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21828 conditions, 4845 events. 1840/4845 cut-off events. For 3824/36165 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 49066 event pairs, 0 based on Foata normal form. 99/4905 useless extension candidates. Maximal degree in co-relation 21762. Up to 1575 conditions per place. [2021-08-13 06:05:35,069 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 35 selfloop transitions, 14 changer transitions 1229/1342 dead transitions. [2021-08-13 06:05:35,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 1342 transitions, 18006 flow [2021-08-13 06:05:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 06:05:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 06:05:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1098 transitions. [2021-08-13 06:05:35,071 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8618524332810047 [2021-08-13 06:05:35,071 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1098 transitions. [2021-08-13 06:05:35,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1098 transitions. [2021-08-13 06:05:35,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:35,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1098 transitions. [2021-08-13 06:05:35,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.46153846153847) internal successors, (1098), 13 states have internal predecessors, (1098), 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) [2021-08-13 06:05:35,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:35,075 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:35,075 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 72 predicate places. [2021-08-13 06:05:35,075 INFO L482 AbstractCegarLoop]: Abstraction has has 164 places, 1342 transitions, 18006 flow [2021-08-13 06:05:35,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 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) [2021-08-13 06:05:35,076 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:35,076 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:35,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 06:05:35,076 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:35,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1967609980, now seen corresponding path program 1 times [2021-08-13 06:05:35,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:35,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820894549] [2021-08-13 06:05:35,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:35,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:35,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:35,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:35,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:35,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:35,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:35,130 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 06:05:35,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 06:05:35,138 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:35,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:35,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:35,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:35,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:35,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:35,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:35,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:35,164 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:35,164 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820894549] [2021-08-13 06:05:35,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820894549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:35,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:35,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 06:05:35,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831202865] [2021-08-13 06:05:35,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 06:05:35,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:35,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 06:05:35,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 06:05:35,167 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 06:05:35,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 1342 transitions, 18006 flow. Second operand has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 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) [2021-08-13 06:05:35,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:35,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 06:05:35,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:36,413 INFO L129 PetriNetUnfolder]: 2225/6226 cut-off events. [2021-08-13 06:05:36,413 INFO L130 PetriNetUnfolder]: For 6153/70683 co-relation queries the response was YES. [2021-08-13 06:05:36,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30776 conditions, 6226 events. 2225/6226 cut-off events. For 6153/70683 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 69139 event pairs, 5 based on Foata normal form. 124/6307 useless extension candidates. Maximal degree in co-relation 30704. Up to 1924 conditions per place. [2021-08-13 06:05:36,444 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 25 selfloop transitions, 12 changer transitions 1565/1666 dead transitions. [2021-08-13 06:05:36,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 1666 transitions, 25740 flow [2021-08-13 06:05:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 06:05:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 06:05:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1433 transitions. [2021-08-13 06:05:36,449 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8601440576230492 [2021-08-13 06:05:36,449 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1433 transitions. [2021-08-13 06:05:36,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1433 transitions. [2021-08-13 06:05:36,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:36,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1433 transitions. [2021-08-13 06:05:36,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 84.29411764705883) internal successors, (1433), 17 states have internal predecessors, (1433), 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) [2021-08-13 06:05:36,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 98.0) internal successors, (1764), 18 states have internal predecessors, (1764), 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) [2021-08-13 06:05:36,454 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 98.0) internal successors, (1764), 18 states have internal predecessors, (1764), 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) [2021-08-13 06:05:36,455 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 88 predicate places. [2021-08-13 06:05:36,455 INFO L482 AbstractCegarLoop]: Abstraction has has 180 places, 1666 transitions, 25740 flow [2021-08-13 06:05:36,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 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) [2021-08-13 06:05:36,455 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:36,455 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:36,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 06:05:36,455 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:36,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:36,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1871802338, now seen corresponding path program 2 times [2021-08-13 06:05:36,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:36,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523314411] [2021-08-13 06:05:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:36,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:36,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:36,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:36,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:36,504 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 06:05:36,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 06:05:36,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:36,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 06:05:36,525 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 06:05:36,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:36,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:36,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:36,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:36,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523314411] [2021-08-13 06:05:36,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523314411] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:36,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:36,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 06:05:36,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905588908] [2021-08-13 06:05:36,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 06:05:36,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:36,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 06:05:36,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 06:05:36,535 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 06:05:36,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 1666 transitions, 25740 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2021-08-13 06:05:36,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:36,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 06:05:36,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:41,437 INFO L129 PetriNetUnfolder]: 10631/24601 cut-off events. [2021-08-13 06:05:41,437 INFO L130 PetriNetUnfolder]: For 14304/26941 co-relation queries the response was YES. [2021-08-13 06:05:41,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87440 conditions, 24601 events. 10631/24601 cut-off events. For 14304/26941 co-relation queries the response was YES. Maximal size of possible extension queue 2036. Compared 299302 event pairs, 734 based on Foata normal form. 115/22735 useless extension candidates. Maximal degree in co-relation 87365. Up to 6918 conditions per place. [2021-08-13 06:05:41,614 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 29 selfloop transitions, 20 changer transitions 1033/1443 dead transitions. [2021-08-13 06:05:41,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 1443 transitions, 21752 flow [2021-08-13 06:05:41,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 06:05:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 06:05:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 881 transitions. [2021-08-13 06:05:41,616 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8989795918367347 [2021-08-13 06:05:41,616 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 881 transitions. [2021-08-13 06:05:41,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 881 transitions. [2021-08-13 06:05:41,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:41,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 881 transitions. [2021-08-13 06:05:41,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.1) internal successors, (881), 10 states have internal predecessors, (881), 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) [2021-08-13 06:05:41,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-08-13 06:05:41,619 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-08-13 06:05:41,620 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 97 predicate places. [2021-08-13 06:05:41,620 INFO L482 AbstractCegarLoop]: Abstraction has has 189 places, 1443 transitions, 21752 flow [2021-08-13 06:05:41,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2021-08-13 06:05:41,620 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:41,620 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:41,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 06:05:41,620 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:41,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:41,621 INFO L82 PathProgramCache]: Analyzing trace with hash 487039738, now seen corresponding path program 1 times [2021-08-13 06:05:41,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:41,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448024233] [2021-08-13 06:05:41,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:41,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:41,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:41,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:41,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:41,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:41,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:41,668 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 06:05:41,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 06:05:41,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:41,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 06:05:41,685 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 06:05:41,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:41,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:41,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:41,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:41,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448024233] [2021-08-13 06:05:41,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448024233] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:41,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:41,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 06:05:41,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11382136] [2021-08-13 06:05:41,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 06:05:41,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:41,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 06:05:41,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 06:05:41,697 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 06:05:41,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 1443 transitions, 21752 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2021-08-13 06:05:41,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:41,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 06:05:41,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:45,349 INFO L129 PetriNetUnfolder]: 7939/17197 cut-off events. [2021-08-13 06:05:45,349 INFO L130 PetriNetUnfolder]: For 8961/24153 co-relation queries the response was YES. [2021-08-13 06:05:45,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60659 conditions, 17197 events. 7939/17197 cut-off events. For 8961/24153 co-relation queries the response was YES. Maximal size of possible extension queue 1919. Compared 192253 event pairs, 103 based on Foata normal form. 1170/16952 useless extension candidates. Maximal degree in co-relation 60581. Up to 5784 conditions per place. [2021-08-13 06:05:45,455 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 52 selfloop transitions, 54 changer transitions 628/906 dead transitions. [2021-08-13 06:05:45,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 906 transitions, 12688 flow [2021-08-13 06:05:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 06:05:45,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 06:05:45,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1147 transitions. [2021-08-13 06:05:45,458 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9003139717425431 [2021-08-13 06:05:45,458 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1147 transitions. [2021-08-13 06:05:45,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1147 transitions. [2021-08-13 06:05:45,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:45,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1147 transitions. [2021-08-13 06:05:45,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 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) [2021-08-13 06:05:45,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:45,462 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-08-13 06:05:45,462 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 106 predicate places. [2021-08-13 06:05:45,462 INFO L482 AbstractCegarLoop]: Abstraction has has 198 places, 906 transitions, 12688 flow [2021-08-13 06:05:45,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2021-08-13 06:05:45,462 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:45,462 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:45,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 06:05:45,463 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:45,463 INFO L82 PathProgramCache]: Analyzing trace with hash -961165325, now seen corresponding path program 1 times [2021-08-13 06:05:45,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:45,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640818465] [2021-08-13 06:05:45,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:45,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:45,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:45,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:45,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:45,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:45,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:45,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:45,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:45,507 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 06:05:45,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 06:05:45,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:45,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 06:05:45,527 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 06:05:45,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:45,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:45,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:45,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:45,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640818465] [2021-08-13 06:05:45,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640818465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:45,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:45,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 06:05:45,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226291173] [2021-08-13 06:05:45,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 06:05:45,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:45,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 06:05:45,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 06:05:45,538 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 06:05:45,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 906 transitions, 12688 flow. Second operand has 8 states, 8 states have (on average 84.125) internal successors, (673), 8 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) [2021-08-13 06:05:45,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:45,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 06:05:45,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:48,017 INFO L129 PetriNetUnfolder]: 6829/14996 cut-off events. [2021-08-13 06:05:48,017 INFO L130 PetriNetUnfolder]: For 5950/28009 co-relation queries the response was YES. [2021-08-13 06:05:48,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53923 conditions, 14996 events. 6829/14996 cut-off events. For 5950/28009 co-relation queries the response was YES. Maximal size of possible extension queue 2026. Compared 169599 event pairs, 0 based on Foata normal form. 1716/15511 useless extension candidates. Maximal degree in co-relation 53842. Up to 5330 conditions per place. [2021-08-13 06:05:48,098 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 33 selfloop transitions, 106 changer transitions 346/575 dead transitions. [2021-08-13 06:05:48,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 575 transitions, 6988 flow [2021-08-13 06:05:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 06:05:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 06:05:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1413 transitions. [2021-08-13 06:05:48,100 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9011479591836735 [2021-08-13 06:05:48,100 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1413 transitions. [2021-08-13 06:05:48,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1413 transitions. [2021-08-13 06:05:48,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:48,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1413 transitions. [2021-08-13 06:05:48,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 88.3125) internal successors, (1413), 16 states have internal predecessors, (1413), 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) [2021-08-13 06:05:48,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 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) [2021-08-13 06:05:48,104 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 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) [2021-08-13 06:05:48,104 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 115 predicate places. [2021-08-13 06:05:48,104 INFO L482 AbstractCegarLoop]: Abstraction has has 207 places, 575 transitions, 6988 flow [2021-08-13 06:05:48,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.125) internal successors, (673), 8 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) [2021-08-13 06:05:48,105 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:48,105 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:48,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 06:05:48,105 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:48,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:48,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1352426648, now seen corresponding path program 1 times [2021-08-13 06:05:48,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:48,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28373637] [2021-08-13 06:05:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:48,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:48,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:48,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:48,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:48,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:48,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:48,131 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 06:05:48,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 06:05:48,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:48,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:48,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:48,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:48,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:48,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:48,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:48,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28373637] [2021-08-13 06:05:48,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28373637] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:48,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:48,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 06:05:48,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455548828] [2021-08-13 06:05:48,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 06:05:48,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:48,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 06:05:48,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 06:05:48,157 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 06:05:48,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 575 transitions, 6988 flow. Second operand has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 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) [2021-08-13 06:05:48,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:48,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 06:05:48,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:50,231 INFO L129 PetriNetUnfolder]: 10166/21432 cut-off events. [2021-08-13 06:05:50,231 INFO L130 PetriNetUnfolder]: For 9789/27394 co-relation queries the response was YES. [2021-08-13 06:05:50,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79545 conditions, 21432 events. 10166/21432 cut-off events. For 9789/27394 co-relation queries the response was YES. Maximal size of possible extension queue 2866. Compared 248002 event pairs, 0 based on Foata normal form. 84/19789 useless extension candidates. Maximal degree in co-relation 79460. Up to 7980 conditions per place. [2021-08-13 06:05:50,334 INFO L132 encePairwiseOnDemand]: 92/98 looper letters, 23 selfloop transitions, 5 changer transitions 475/703 dead transitions. [2021-08-13 06:05:50,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 703 transitions, 9780 flow [2021-08-13 06:05:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 06:05:50,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 06:05:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 611 transitions. [2021-08-13 06:05:50,335 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.89067055393586 [2021-08-13 06:05:50,336 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 611 transitions. [2021-08-13 06:05:50,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 611 transitions. [2021-08-13 06:05:50,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:50,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 611 transitions. [2021-08-13 06:05:50,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.28571428571429) internal successors, (611), 7 states have internal predecessors, (611), 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) [2021-08-13 06:05:50,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-08-13 06:05:50,337 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-08-13 06:05:50,338 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 121 predicate places. [2021-08-13 06:05:50,338 INFO L482 AbstractCegarLoop]: Abstraction has has 213 places, 703 transitions, 9780 flow [2021-08-13 06:05:50,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 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) [2021-08-13 06:05:50,338 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 06:05:50,338 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 06:05:50,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 06:05:50,338 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 06:05:50,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 06:05:50,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1289055664, now seen corresponding path program 2 times [2021-08-13 06:05:50,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 06:05:50,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186348309] [2021-08-13 06:05:50,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 06:05:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 06:05:50,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:50,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:50,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:50,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:50,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 06:05:50,378 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 06:05:50,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 06:05:50,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 06:05:50,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 06:05:50,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 06:05:50,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 06:05:50,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 06:05:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 06:05:50,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 06:05:50,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186348309] [2021-08-13 06:05:50,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186348309] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 06:05:50,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 06:05:50,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 06:05:50,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619163858] [2021-08-13 06:05:50,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 06:05:50,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 06:05:50,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 06:05:50,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-13 06:05:50,410 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 06:05:50,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 703 transitions, 9780 flow. Second operand has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 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) [2021-08-13 06:05:50,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 06:05:50,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 06:05:50,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 06:05:53,451 INFO L129 PetriNetUnfolder]: 9901/21027 cut-off events. [2021-08-13 06:05:53,451 INFO L130 PetriNetUnfolder]: For 9403/48302 co-relation queries the response was YES. [2021-08-13 06:05:53,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88548 conditions, 21027 events. 9901/21027 cut-off events. For 9403/48302 co-relation queries the response was YES. Maximal size of possible extension queue 2960. Compared 248761 event pairs, 0 based on Foata normal form. 2433/21836 useless extension candidates. Maximal degree in co-relation 88460. Up to 7770 conditions per place. [2021-08-13 06:05:53,575 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 0 selfloop transitions, 0 changer transitions 439/439 dead transitions. [2021-08-13 06:05:53,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 439 transitions, 5304 flow [2021-08-13 06:05:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 06:05:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 06:05:53,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1659 transitions. [2021-08-13 06:05:53,577 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8909774436090225 [2021-08-13 06:05:53,577 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1659 transitions. [2021-08-13 06:05:53,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1659 transitions. [2021-08-13 06:05:53,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 06:05:53,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1659 transitions. [2021-08-13 06:05:53,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 87.3157894736842) internal successors, (1659), 19 states have internal predecessors, (1659), 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) [2021-08-13 06:05:53,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 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) [2021-08-13 06:05:53,582 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 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) [2021-08-13 06:05:53,582 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 107 predicate places. [2021-08-13 06:05:53,582 INFO L482 AbstractCegarLoop]: Abstraction has has 199 places, 439 transitions, 5304 flow [2021-08-13 06:05:53,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 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) [2021-08-13 06:05:53,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown