/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 01:01:53,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 01:01:53,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 01:01:53,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 01:01:53,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 01:01:53,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 01:01:53,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 01:01:53,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 01:01:53,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 01:01:53,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 01:01:53,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 01:01:53,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 01:01:53,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 01:01:53,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 01:01:53,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 01:01:53,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 01:01:53,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 01:01:53,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 01:01:53,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 01:01:53,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 01:01:53,287 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.epf [2021-08-13 01:01:53,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 01:01:53,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 01:01:53,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 01:01:53,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 01:01:53,324 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 01:01:53,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 01:01:53,325 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 01:01:53,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 01:01:53,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 01:01:53,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 01:01:53,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 01:01:53,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 01:01:53,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 01:01:53,326 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 01:01:53,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 01:01:53,327 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 01:01:53,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 01:01:53,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 01:01:53,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 01:01:53,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 01:01:53,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 01:01:53,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:01:53,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 01:01:53,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 01:01:53,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 01:01:53,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 01:01:53,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 01:01:53,329 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 01:01:53,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 01:01:53,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 01:01:53,329 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 01:01:53,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 01:01:53,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 01:01:53,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 01:01:53,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 01:01:53,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 01:01:53,701 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 01:01:53,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-08-13 01:01:53,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1a645c4/c61b4e9d602d4ab9966d2bdea0e4cf73/FLAG4687ca2fa [2021-08-13 01:01:54,309 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 01:01:54,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-08-13 01:01:54,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1a645c4/c61b4e9d602d4ab9966d2bdea0e4cf73/FLAG4687ca2fa [2021-08-13 01:01:54,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1a645c4/c61b4e9d602d4ab9966d2bdea0e4cf73 [2021-08-13 01:01:54,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 01:01:54,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 01:01:54,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 01:01:54,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 01:01:54,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 01:01:54,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:01:54" (1/1) ... [2021-08-13 01:01:54,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eef1396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:54, skipping insertion in model container [2021-08-13 01:01:54,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:01:54" (1/1) ... [2021-08-13 01:01:54,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 01:01:54,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 01:01:54,951 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_tso.oepc.i[950,963] [2021-08-13 01:01:55,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:01:55,128 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 01:01:55,138 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_tso.oepc.i[950,963] [2021-08-13 01:01:55,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:01:55,265 INFO L208 MainTranslator]: Completed translation [2021-08-13 01:01:55,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55 WrapperNode [2021-08-13 01:01:55,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 01:01:55,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 01:01:55,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 01:01:55,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 01:01:55,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 01:01:55,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 01:01:55,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 01:01:55,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 01:01:55,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (1/1) ... [2021-08-13 01:01:55,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 01:01:55,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 01:01:55,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 01:01:55,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 01:01:55,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (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 01:01:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 01:01:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 01:01:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 01:01:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 01:01:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 01:01:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 01:01:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 01:01:55,412 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 01:01:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 01:01:55,412 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 01:01:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 01:01:55,412 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 01:01:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 01:01:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 01:01:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 01:01:55,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 01:01:55,414 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 01:01:55,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 01:01:55,751 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 01:01:55,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:01:55 BoogieIcfgContainer [2021-08-13 01:01:55,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 01:01:55,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 01:01:55,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 01:01:55,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 01:01:55,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 01:01:54" (1/3) ... [2021-08-13 01:01:55,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0381b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:01:55, skipping insertion in model container [2021-08-13 01:01:55,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:01:55" (2/3) ... [2021-08-13 01:01:55,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0381b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:01:55, skipping insertion in model container [2021-08-13 01:01:55,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:01:55" (3/3) ... [2021-08-13 01:01:55,758 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-08-13 01:01:55,763 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 01:01:55,763 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 01:01:55,764 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 01:01:55,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,802 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,805 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,806 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,806 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,806 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,817 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,818 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:01:55,832 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 01:01:55,854 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 01:01:55,882 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 01:01:55,882 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 01:01:55,882 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 01:01:55,882 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 01:01:55,883 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 01:01:55,883 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 01:01:55,883 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 01:01:55,883 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 01:01:55,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 98 transitions, 216 flow [2021-08-13 01:01:55,965 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-08-13 01:01:55,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:01:55,976 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 01:01:55,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 98 transitions, 216 flow [2021-08-13 01:01:55,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 80 transitions, 172 flow [2021-08-13 01:01:56,007 INFO L129 PetriNetUnfolder]: 1/79 cut-off events. [2021-08-13 01:01:56,007 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:01:56,008 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:01:56,009 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 01:01:56,009 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:01:56,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:01:56,014 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-08-13 01:01:56,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:01:56,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415696145] [2021-08-13 01:01:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:01:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:01:56,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:56,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:56,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:56,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:01:56,458 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:01:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:01:56,479 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:01:56,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:01:56,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:56,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:56,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:56,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:56,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:56,539 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 01:01:56,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:01:56,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415696145] [2021-08-13 01:01:56,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415696145] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:01:56,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:01:56,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:01:56,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753101604] [2021-08-13 01:01:56,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:01:56,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:01:56,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:01:56,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:01:56,568 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 01:01:56,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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 01:01:56,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:01:56,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 01:01:56,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:01:56,937 INFO L129 PetriNetUnfolder]: 268/675 cut-off events. [2021-08-13 01:01:56,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:01:56,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 675 events. 268/675 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3788 event pairs, 88 based on Foata normal form. 27/675 useless extension candidates. Maximal degree in co-relation 1116. Up to 187 conditions per place. [2021-08-13 01:01:56,947 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 19 selfloop transitions, 5 changer transitions 41/129 dead transitions. [2021-08-13 01:01:56,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 400 flow [2021-08-13 01:01:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:01:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:01:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1098 transitions. [2021-08-13 01:01:56,969 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8618524332810047 [2021-08-13 01:01:56,970 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1098 transitions. [2021-08-13 01:01:56,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1098 transitions. [2021-08-13 01:01:56,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:01:56,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1098 transitions. [2021-08-13 01:01:56,982 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 01:01:57,005 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 01:01:57,006 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 01:01:57,007 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 12 predicate places. [2021-08-13 01:01:57,007 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 129 transitions, 400 flow [2021-08-13 01:01:57,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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 01:01:57,008 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:01:57,008 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] [2021-08-13 01:01:57,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 01:01:57,008 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:01:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:01:57,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1282702817, now seen corresponding path program 1 times [2021-08-13 01:01:57,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:01:57,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159256882] [2021-08-13 01:01:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:01:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:01:57,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:57,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:01:57,163 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:01:57,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:01:57,178 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:01:57,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:01:57,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:57,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:57,224 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 01:01:57,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:01:57,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159256882] [2021-08-13 01:01:57,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159256882] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:01:57,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:01:57,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:01:57,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646837888] [2021-08-13 01:01:57,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:01:57,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:01:57,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:01:57,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:01:57,229 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 01:01:57,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 129 transitions, 400 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 01:01:57,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:01:57,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 01:01:57,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:01:57,590 INFO L129 PetriNetUnfolder]: 330/948 cut-off events. [2021-08-13 01:01:57,590 INFO L130 PetriNetUnfolder]: For 39/575 co-relation queries the response was YES. [2021-08-13 01:01:57,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 948 events. 330/948 cut-off events. For 39/575 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 6423 event pairs, 1 based on Foata normal form. 22/947 useless extension candidates. Maximal degree in co-relation 2136. Up to 222 conditions per place. [2021-08-13 01:01:57,596 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 19 selfloop transitions, 14 changer transitions 155/252 dead transitions. [2021-08-13 01:01:57,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 252 transitions, 1268 flow [2021-08-13 01:01:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:01:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:01:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1107 transitions. [2021-08-13 01:01:57,600 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.868916797488226 [2021-08-13 01:01:57,600 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1107 transitions. [2021-08-13 01:01:57,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1107 transitions. [2021-08-13 01:01:57,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:01:57,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1107 transitions. [2021-08-13 01:01:57,604 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 01:01:57,606 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 01:01:57,607 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 01:01:57,608 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 24 predicate places. [2021-08-13 01:01:57,608 INFO L482 AbstractCegarLoop]: Abstraction has has 116 places, 252 transitions, 1268 flow [2021-08-13 01:01:57,608 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 01:01:57,608 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:01:57,608 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 01:01:57,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 01:01:57,609 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:01:57,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:01:57,609 INFO L82 PathProgramCache]: Analyzing trace with hash 591383262, now seen corresponding path program 1 times [2021-08-13 01:01:57,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:01:57,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316886919] [2021-08-13 01:01:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:01:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:01:57,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:57,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:01:57,690 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:01:57,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:01:57,699 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:01:57,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:01:57,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:57,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:57,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:57,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:57,731 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 01:01:57,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:01:57,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316886919] [2021-08-13 01:01:57,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316886919] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:01:57,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:01:57,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:01:57,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526822231] [2021-08-13 01:01:57,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:01:57,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:01:57,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:01:57,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:01:57,734 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 01:01:57,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 252 transitions, 1268 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 01:01:57,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:01:57,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 01:01:57,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:01:58,162 INFO L129 PetriNetUnfolder]: 490/1520 cut-off events. [2021-08-13 01:01:58,162 INFO L130 PetriNetUnfolder]: For 150/1595 co-relation queries the response was YES. [2021-08-13 01:01:58,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4323 conditions, 1520 events. 490/1520 cut-off events. For 150/1595 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 12730 event pairs, 2 based on Foata normal form. 23/1526 useless extension candidates. Maximal degree in co-relation 4276. Up to 304 conditions per place. [2021-08-13 01:01:58,173 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 24 selfloop transitions, 15 changer transitions 366/469 dead transitions. [2021-08-13 01:01:58,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 469 transitions, 3380 flow [2021-08-13 01:01:58,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:01:58,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:01:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1099 transitions. [2021-08-13 01:01:58,177 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8626373626373627 [2021-08-13 01:01:58,177 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1099 transitions. [2021-08-13 01:01:58,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1099 transitions. [2021-08-13 01:01:58,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:01:58,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1099 transitions. [2021-08-13 01:01:58,180 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 01:01:58,182 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 01:01:58,183 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 01:01:58,183 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 36 predicate places. [2021-08-13 01:01:58,183 INFO L482 AbstractCegarLoop]: Abstraction has has 128 places, 469 transitions, 3380 flow [2021-08-13 01:01:58,184 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 01:01:58,184 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:01:58,184 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 01:01:58,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 01:01:58,184 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:01:58,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:01:58,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1147038059, now seen corresponding path program 1 times [2021-08-13 01:01:58,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:01:58,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033025815] [2021-08-13 01:01:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:01:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:01:58,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:58,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:01:58,282 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:01:58,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:01:58,292 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:01:58,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:01:58,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:58,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:58,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:58,323 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 01:01:58,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:01:58,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033025815] [2021-08-13 01:01:58,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033025815] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:01:58,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:01:58,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:01:58,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659355395] [2021-08-13 01:01:58,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:01:58,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:01:58,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:01:58,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:01:58,328 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-08-13 01:01:58,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 469 transitions, 3380 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 01:01:58,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:01:58,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-08-13 01:01:58,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:01:58,760 INFO L129 PetriNetUnfolder]: 495/1612 cut-off events. [2021-08-13 01:01:58,760 INFO L130 PetriNetUnfolder]: For 383/3430 co-relation queries the response was YES. [2021-08-13 01:01:58,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5577 conditions, 1612 events. 495/1612 cut-off events. For 383/3430 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 14157 event pairs, 0 based on Foata normal form. 41/1636 useless extension candidates. Maximal degree in co-relation 5524. Up to 404 conditions per place. [2021-08-13 01:01:58,770 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 31 selfloop transitions, 12 changer transitions 416/523 dead transitions. [2021-08-13 01:01:58,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 523 transitions, 4730 flow [2021-08-13 01:01:58,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:01:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:01:58,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1098 transitions. [2021-08-13 01:01:58,774 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8618524332810047 [2021-08-13 01:01:58,774 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1098 transitions. [2021-08-13 01:01:58,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1098 transitions. [2021-08-13 01:01:58,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:01:58,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1098 transitions. [2021-08-13 01:01:58,777 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 01:01:58,779 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 01:01:58,780 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 01:01:58,780 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 48 predicate places. [2021-08-13 01:01:58,780 INFO L482 AbstractCegarLoop]: Abstraction has has 140 places, 523 transitions, 4730 flow [2021-08-13 01:01:58,780 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 01:01:58,781 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:01:58,781 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] [2021-08-13 01:01:58,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 01:01:58,781 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:01:58,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:01:58,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1469561983, now seen corresponding path program 1 times [2021-08-13 01:01:58,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:01:58,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853400950] [2021-08-13 01:01:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:01:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:01:58,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:58,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:01:58,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:01:58,833 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:01:58,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:01:58,843 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:01:58,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:01:58,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:58,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:01:58,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:01:58,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:01:58,880 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 01:01:58,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:01:58,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853400950] [2021-08-13 01:01:58,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853400950] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:01:58,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:01:58,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:01:58,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927186317] [2021-08-13 01:01:58,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:01:58,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:01:58,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:01:58,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:01:58,883 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 98 [2021-08-13 01:01:58,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 523 transitions, 4730 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 01:01:58,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:01:58,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 98 [2021-08-13 01:01:58,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:01:59,948 INFO L129 PetriNetUnfolder]: 1840/5004 cut-off events. [2021-08-13 01:01:59,948 INFO L130 PetriNetUnfolder]: For 2365/22055 co-relation queries the response was YES. [2021-08-13 01:01:59,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19239 conditions, 5004 events. 1840/5004 cut-off events. For 2365/22055 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 51879 event pairs, 0 based on Foata normal form. 40/5005 useless extension candidates. Maximal degree in co-relation 19179. Up to 1087 conditions per place. [2021-08-13 01:01:59,982 INFO L132 encePairwiseOnDemand]: 84/98 looper letters, 35 selfloop transitions, 16 changer transitions 1229/1342 dead transitions. [2021-08-13 01:01:59,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 1342 transitions, 15456 flow [2021-08-13 01:01:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 01:01:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 01:01:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1413 transitions. [2021-08-13 01:01:59,986 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8481392557022809 [2021-08-13 01:01:59,986 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1413 transitions. [2021-08-13 01:01:59,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1413 transitions. [2021-08-13 01:01:59,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:01:59,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1413 transitions. [2021-08-13 01:01:59,990 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 01:01:59,993 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 01:01:59,994 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 01:01:59,994 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 64 predicate places. [2021-08-13 01:01:59,994 INFO L482 AbstractCegarLoop]: Abstraction has has 156 places, 1342 transitions, 15456 flow [2021-08-13 01:01:59,995 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 01:01:59,995 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:01:59,995 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 01:01:59,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 01:01:59,995 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:01:59,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:01:59,996 INFO L82 PathProgramCache]: Analyzing trace with hash 433802718, now seen corresponding path program 1 times [2021-08-13 01:01:59,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:01:59,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672251164] [2021-08-13 01:01:59,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:02:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:02:00,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:00,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:00,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:00,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:00,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:00,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:00,043 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:02:00,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:02:00,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:00,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:00,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:00,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:00,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:00,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:00,073 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 01:02:00,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:02:00,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672251164] [2021-08-13 01:02:00,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672251164] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:02:00,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:02:00,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:02:00,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302358449] [2021-08-13 01:02:00,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:02:00,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:02:00,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:02:00,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:02:00,077 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 01:02:00,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 1342 transitions, 15456 flow. Second operand has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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 01:02:00,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:02:00,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 01:02:00,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:02:01,498 INFO L129 PetriNetUnfolder]: 2240/6334 cut-off events. [2021-08-13 01:02:01,498 INFO L130 PetriNetUnfolder]: For 6499/55662 co-relation queries the response was YES. [2021-08-13 01:02:01,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26830 conditions, 6334 events. 2240/6334 cut-off events. For 6499/55662 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 70739 event pairs, 5 based on Foata normal form. 95/6386 useless extension candidates. Maximal degree in co-relation 26766. Up to 1316 conditions per place. [2021-08-13 01:02:01,542 INFO L132 encePairwiseOnDemand]: 89/98 looper letters, 17 selfloop transitions, 10 changer transitions 1477/1578 dead transitions. [2021-08-13 01:02:01,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 1578 transitions, 20622 flow [2021-08-13 01:02:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:02:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:02:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2021-08-13 01:02:01,546 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8877551020408163 [2021-08-13 01:02:01,546 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1131 transitions. [2021-08-13 01:02:01,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1131 transitions. [2021-08-13 01:02:01,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:02:01,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1131 transitions. [2021-08-13 01:02:01,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.0) internal successors, (1131), 13 states have internal predecessors, (1131), 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 01:02:01,551 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 01:02:01,552 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 01:02:01,552 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 76 predicate places. [2021-08-13 01:02:01,552 INFO L482 AbstractCegarLoop]: Abstraction has has 168 places, 1578 transitions, 20622 flow [2021-08-13 01:02:01,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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 01:02:01,553 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:02:01,553 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 01:02:01,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 01:02:01,553 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:02:01,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:02:01,554 INFO L82 PathProgramCache]: Analyzing trace with hash 87463804, now seen corresponding path program 2 times [2021-08-13 01:02:01,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:02:01,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385578541] [2021-08-13 01:02:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:02:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:02:01,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:01,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:01,632 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:02:01,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:02:01,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:01,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:02:01,659 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:02:01,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:01,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:01,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:01,669 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 01:02:01,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:02:01,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385578541] [2021-08-13 01:02:01,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385578541] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:02:01,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:02:01,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:02:01,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143498467] [2021-08-13 01:02:01,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:02:01,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:02:01,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:02:01,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:02:01,671 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 01:02:01,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 1578 transitions, 20622 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 01:02:01,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:02:01,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 01:02:01,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:02:06,797 INFO L129 PetriNetUnfolder]: 10596/24495 cut-off events. [2021-08-13 01:02:06,797 INFO L130 PetriNetUnfolder]: For 11740/21606 co-relation queries the response was YES. [2021-08-13 01:02:06,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79019 conditions, 24495 events. 10596/24495 cut-off events. For 11740/21606 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 297641 event pairs, 718 based on Foata normal form. 115/22664 useless extension candidates. Maximal degree in co-relation 78952. Up to 6837 conditions per place. [2021-08-13 01:02:06,975 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 29 selfloop transitions, 20 changer transitions 948/1361 dead transitions. [2021-08-13 01:02:06,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1361 transitions, 17376 flow [2021-08-13 01:02:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:02:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:02:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 881 transitions. [2021-08-13 01:02:06,978 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8989795918367347 [2021-08-13 01:02:06,979 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 881 transitions. [2021-08-13 01:02:06,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 881 transitions. [2021-08-13 01:02:06,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:02:06,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 881 transitions. [2021-08-13 01:02:06,981 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 01:02:06,983 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 01:02:06,984 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 01:02:06,984 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 85 predicate places. [2021-08-13 01:02:06,984 INFO L482 AbstractCegarLoop]: Abstraction has has 177 places, 1361 transitions, 17376 flow [2021-08-13 01:02:06,984 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 01:02:06,984 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:02:06,984 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 01:02:06,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 01:02:06,985 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:02:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:02:06,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2015559968, now seen corresponding path program 1 times [2021-08-13 01:02:06,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:02:06,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126082598] [2021-08-13 01:02:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:02:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:02:07,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:07,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:07,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:07,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:07,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:07,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:07,030 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:02:07,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:02:07,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:07,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:02:07,056 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:02:07,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:07,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:07,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:07,065 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 01:02:07,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:02:07,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126082598] [2021-08-13 01:02:07,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126082598] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:02:07,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:02:07,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:02:07,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512597329] [2021-08-13 01:02:07,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:02:07,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:02:07,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:02:07,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:02:07,069 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 01:02:07,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 1361 transitions, 17376 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 01:02:07,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:02:07,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 01:02:07,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:02:10,698 INFO L129 PetriNetUnfolder]: 7933/17571 cut-off events. [2021-08-13 01:02:10,698 INFO L130 PetriNetUnfolder]: For 7668/21114 co-relation queries the response was YES. [2021-08-13 01:02:10,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57820 conditions, 17571 events. 7933/17571 cut-off events. For 7668/21114 co-relation queries the response was YES. Maximal size of possible extension queue 1958. Compared 199306 event pairs, 102 based on Foata normal form. 1170/17328 useless extension candidates. Maximal degree in co-relation 57750. Up to 5783 conditions per place. [2021-08-13 01:02:10,801 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 52 selfloop transitions, 54 changer transitions 592/860 dead transitions. [2021-08-13 01:02:10,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 860 transitions, 10286 flow [2021-08-13 01:02:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:02:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:02:10,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1147 transitions. [2021-08-13 01:02:10,804 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9003139717425431 [2021-08-13 01:02:10,804 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1147 transitions. [2021-08-13 01:02:10,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1147 transitions. [2021-08-13 01:02:10,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:02:10,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1147 transitions. [2021-08-13 01:02:10,807 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 01:02:10,809 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 01:02:10,809 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 01:02:10,810 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 94 predicate places. [2021-08-13 01:02:10,810 INFO L482 AbstractCegarLoop]: Abstraction has has 186 places, 860 transitions, 10286 flow [2021-08-13 01:02:10,810 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 01:02:10,810 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:02:10,810 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 01:02:10,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 01:02:10,810 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:02:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:02:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1762287219, now seen corresponding path program 1 times [2021-08-13 01:02:10,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:02:10,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145029676] [2021-08-13 01:02:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:02:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:02:10,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:10,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:10,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:10,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:10,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:10,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:10,855 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:02:10,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:02:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:02:10,883 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:02:10,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:10,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:10,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:10,898 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 01:02:10,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:02:10,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145029676] [2021-08-13 01:02:10,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145029676] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:02:10,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:02:10,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:02:10,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006720940] [2021-08-13 01:02:10,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:02:10,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:02:10,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:02:10,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:02:10,900 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 01:02:10,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 860 transitions, 10286 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 01:02:10,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:02:10,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 01:02:10,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:02:13,341 INFO L129 PetriNetUnfolder]: 6827/15144 cut-off events. [2021-08-13 01:02:13,342 INFO L130 PetriNetUnfolder]: For 5486/25838 co-relation queries the response was YES. [2021-08-13 01:02:13,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53270 conditions, 15144 events. 6827/15144 cut-off events. For 5486/25838 co-relation queries the response was YES. Maximal size of possible extension queue 2048. Compared 172890 event pairs, 0 based on Foata normal form. 1716/15659 useless extension candidates. Maximal degree in co-relation 53197. Up to 5328 conditions per place. [2021-08-13 01:02:13,410 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 33 selfloop transitions, 106 changer transitions 327/556 dead transitions. [2021-08-13 01:02:13,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 556 transitions, 5936 flow [2021-08-13 01:02:13,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 01:02:13,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 01:02:13,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1413 transitions. [2021-08-13 01:02:13,413 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9011479591836735 [2021-08-13 01:02:13,413 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1413 transitions. [2021-08-13 01:02:13,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1413 transitions. [2021-08-13 01:02:13,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:02:13,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1413 transitions. [2021-08-13 01:02:13,416 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 01:02:13,419 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 01:02:13,420 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 01:02:13,420 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 103 predicate places. [2021-08-13 01:02:13,420 INFO L482 AbstractCegarLoop]: Abstraction has has 195 places, 556 transitions, 5936 flow [2021-08-13 01:02:13,420 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 01:02:13,420 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:02:13,421 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 01:02:13,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 01:02:13,421 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:02:13,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:02:13,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1103562258, now seen corresponding path program 1 times [2021-08-13 01:02:13,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:02:13,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102245036] [2021-08-13 01:02:13,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:02:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:02:13,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:13,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:13,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:13,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:13,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:13,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:13,467 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:02:13,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:02:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:13,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:13,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:13,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:13,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:13,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:13,509 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 01:02:13,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:02:13,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102245036] [2021-08-13 01:02:13,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102245036] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:02:13,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:02:13,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:02:13,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829187230] [2021-08-13 01:02:13,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:02:13,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:02:13,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:02:13,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:02:13,512 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 01:02:13,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 556 transitions, 5936 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 01:02:13,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:02:13,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 01:02:13,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:02:15,746 INFO L129 PetriNetUnfolder]: 10164/21799 cut-off events. [2021-08-13 01:02:15,746 INFO L130 PetriNetUnfolder]: For 9179/23512 co-relation queries the response was YES. [2021-08-13 01:02:15,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78763 conditions, 21799 events. 10164/21799 cut-off events. For 9179/23512 co-relation queries the response was YES. Maximal size of possible extension queue 2908. Compared 255968 event pairs, 0 based on Foata normal form. 84/20156 useless extension candidates. Maximal degree in co-relation 78686. Up to 7975 conditions per place. [2021-08-13 01:02:15,851 INFO L132 encePairwiseOnDemand]: 92/98 looper letters, 23 selfloop transitions, 5 changer transitions 452/680 dead transitions. [2021-08-13 01:02:15,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 680 transitions, 8360 flow [2021-08-13 01:02:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 01:02:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 01:02:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 611 transitions. [2021-08-13 01:02:15,853 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.89067055393586 [2021-08-13 01:02:15,853 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 611 transitions. [2021-08-13 01:02:15,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 611 transitions. [2021-08-13 01:02:15,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:02:15,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 611 transitions. [2021-08-13 01:02:15,855 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 01:02:15,856 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 01:02:15,856 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 01:02:15,857 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 109 predicate places. [2021-08-13 01:02:15,857 INFO L482 AbstractCegarLoop]: Abstraction has has 201 places, 680 transitions, 8360 flow [2021-08-13 01:02:15,857 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 01:02:15,857 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:02:15,857 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 01:02:15,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 01:02:15,858 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:02:15,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:02:15,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1499584494, now seen corresponding path program 2 times [2021-08-13 01:02:15,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:02:15,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000064727] [2021-08-13 01:02:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:02:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:02:15,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:15,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:15,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:15,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:15,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:15,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:15,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:15,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:15,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:15,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:02:16,003 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:02:16,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:02:16,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:02:16,035 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:02:16,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:02:16,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:02:16,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:02:16,046 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 01:02:16,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:02:16,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000064727] [2021-08-13 01:02:16,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000064727] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:02:16,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:02:16,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 01:02:16,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706504929] [2021-08-13 01:02:16,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 01:02:16,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:02:16,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 01:02:16,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-13 01:02:16,049 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-08-13 01:02:16,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 680 transitions, 8360 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 01:02:16,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:02:16,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-08-13 01:02:16,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:02:19,169 INFO L129 PetriNetUnfolder]: 9901/20819 cut-off events. [2021-08-13 01:02:19,169 INFO L130 PetriNetUnfolder]: For 9638/45309 co-relation queries the response was YES. [2021-08-13 01:02:19,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88049 conditions, 20819 events. 9901/20819 cut-off events. For 9638/45309 co-relation queries the response was YES. Maximal size of possible extension queue 2921. Compared 244080 event pairs, 0 based on Foata normal form. 2433/21628 useless extension candidates. Maximal degree in co-relation 87969. Up to 7770 conditions per place. [2021-08-13 01:02:19,265 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 0 selfloop transitions, 0 changer transitions 428/428 dead transitions. [2021-08-13 01:02:19,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 428 transitions, 4720 flow [2021-08-13 01:02:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 01:02:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 01:02:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1659 transitions. [2021-08-13 01:02:19,267 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8909774436090225 [2021-08-13 01:02:19,268 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1659 transitions. [2021-08-13 01:02:19,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1659 transitions. [2021-08-13 01:02:19,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:02:19,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1659 transitions. [2021-08-13 01:02:19,271 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 01:02:19,274 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 01:02:19,274 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 01:02:19,274 INFO L348 CegarLoopForPetriNet]: 92 programPoint places, 98 predicate places. [2021-08-13 01:02:19,274 INFO L482 AbstractCegarLoop]: Abstraction has has 190 places, 428 transitions, 4720 flow [2021-08-13 01:02:19,275 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 01:02:19,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown