/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:33:16,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:33:16,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:33:16,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 02:33:16,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:33:16,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:33:16,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:33:16,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:33:16,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:33:16,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:33:16,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:33:16,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:33:16,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:33:16,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:33:16,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:33:16,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:33:16,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:33:16,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:33:16,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:33:16,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:33:16,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-03-11 02:33:16,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:33:16,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:33:16,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:33:16,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:33:16,591 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:33:16,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:33:16,591 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:33:16,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:33:16,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:33:16,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:33:16,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:33:16,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:33:16,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:33:16,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:33:16,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:33:16,595 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:33:16,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:33:16,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:33:16,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:33:16,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:33:16,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:33:16,909 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:33:16,911 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:33:16,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-03-11 02:33:16,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d24e6ba7/64b4b95cb6244b138021ad1d2094f2af/FLAG25aa5d300 [2021-03-11 02:33:17,445 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:33:17,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-03-11 02:33:17,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d24e6ba7/64b4b95cb6244b138021ad1d2094f2af/FLAG25aa5d300 [2021-03-11 02:33:17,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d24e6ba7/64b4b95cb6244b138021ad1d2094f2af [2021-03-11 02:33:17,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:33:17,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:33:17,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:33:17,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:33:17,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:33:17,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e6abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17, skipping insertion in model container [2021-03-11 02:33:17,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:33:17,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:33:17,655 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-03-11 02:33:17,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:33:17,799 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:33:17,808 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-03-11 02:33:17,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:33:17,920 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:33:17,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17 WrapperNode [2021-03-11 02:33:17,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:33:17,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:33:17,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:33:17,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:33:17,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:33:17,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:33:17,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:33:17,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:33:17,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:17,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:18,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:18,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:18,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:18,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:18,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... [2021-03-11 02:33:18,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:33:18,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:33:18,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:33:18,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:33:18,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:33:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:33:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:33:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:33:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:33:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:33:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:33:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:33:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:33:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:33:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:33:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 02:33:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 02:33:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:33:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:33:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:33:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:33:18,073 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:33:18,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:33:18,407 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:33:18,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:18 BoogieIcfgContainer [2021-03-11 02:33:18,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:33:18,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:33:18,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:33:18,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:33:18,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:33:17" (1/3) ... [2021-03-11 02:33:18,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4c6022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:18, skipping insertion in model container [2021-03-11 02:33:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:33:17" (2/3) ... [2021-03-11 02:33:18,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4c6022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:18, skipping insertion in model container [2021-03-11 02:33:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:18" (3/3) ... [2021-03-11 02:33:18,415 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2021-03-11 02:33:18,423 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:33:18,427 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:33:18,427 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:33:18,458 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,471 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,471 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,472 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,472 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,481 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,481 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:33:18,491 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:33:18,507 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 02:33:18,535 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:33:18,536 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:33:18,536 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:33:18,536 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:33:18,536 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:33:18,536 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:33:18,536 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:33:18,537 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:33:18,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 02:33:18,609 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-03-11 02:33:18,609 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:18,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-11 02:33:18,615 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 02:33:18,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-03-11 02:33:18,637 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2021-03-11 02:33:18,637 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:18,638 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:18,638 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:18,638 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:18,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:18,643 INFO L82 PathProgramCache]: Analyzing trace with hash -898252917, now seen corresponding path program 1 times [2021-03-11 02:33:18,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:18,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459791878] [2021-03-11 02:33:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:18,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:18,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,001 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:19,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:19,021 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:19,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:19,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:19,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459791878] [2021-03-11 02:33:19,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:19,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:19,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682617580] [2021-03-11 02:33:19,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:19,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:19,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:19,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:19,106 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:19,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 67 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:19,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:19,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:19,499 INFO L129 PetriNetUnfolder]: 996/2296 cut-off events. [2021-03-11 02:33:19,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:33:19,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3835 conditions, 2296 events. 996/2296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 17879 event pairs, 272 based on Foata normal form. 72/2312 useless extension candidates. Maximal degree in co-relation 3803. Up to 621 conditions per place. [2021-03-11 02:33:19,518 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 19 selfloop transitions, 7 changer transitions 43/119 dead transitions. [2021-03-11 02:33:19,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 119 transitions, 388 flow [2021-03-11 02:33:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 658 transitions. [2021-03-11 02:33:19,531 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8601307189542484 [2021-03-11 02:33:19,531 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 658 transitions. [2021-03-11 02:33:19,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 658 transitions. [2021-03-11 02:33:19,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:19,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 658 transitions. [2021-03-11 02:33:19,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.11111111111111) internal successors, (658), 9 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,546 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,547 INFO L185 Difference]: Start difference. First operand has 79 places, 67 transitions, 146 flow. Second operand 9 states and 658 transitions. [2021-03-11 02:33:19,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 119 transitions, 388 flow [2021-03-11 02:33:19,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 119 transitions, 384 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:33:19,554 INFO L241 Difference]: Finished difference. Result has 91 places, 72 transitions, 242 flow [2021-03-11 02:33:19,556 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=242, PETRI_PLACES=91, PETRI_TRANSITIONS=72} [2021-03-11 02:33:19,556 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-03-11 02:33:19,556 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 72 transitions, 242 flow [2021-03-11 02:33:19,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,557 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:19,557 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:19,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:33:19,557 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:19,558 INFO L82 PathProgramCache]: Analyzing trace with hash 96521420, now seen corresponding path program 1 times [2021-03-11 02:33:19,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:19,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538826656] [2021-03-11 02:33:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:19,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:19,626 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:19,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:19,638 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:19,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:19,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:19,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:19,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:19,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538826656] [2021-03-11 02:33:19,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:19,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:19,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538364914] [2021-03-11 02:33:19,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:19,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:19,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:19,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:19,711 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:19,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 72 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:19,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:19,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:19,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:20,140 INFO L129 PetriNetUnfolder]: 712/1856 cut-off events. [2021-03-11 02:33:20,140 INFO L130 PetriNetUnfolder]: For 3574/4899 co-relation queries the response was YES. [2021-03-11 02:33:20,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5939 conditions, 1856 events. 712/1856 cut-off events. For 3574/4899 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 14314 event pairs, 2 based on Foata normal form. 54/1869 useless extension candidates. Maximal degree in co-relation 5901. Up to 600 conditions per place. [2021-03-11 02:33:20,157 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 25 selfloop transitions, 12 changer transitions 76/163 dead transitions. [2021-03-11 02:33:20,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 163 transitions, 1148 flow [2021-03-11 02:33:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2021-03-11 02:33:20,161 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8542986425339366 [2021-03-11 02:33:20,161 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2021-03-11 02:33:20,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2021-03-11 02:33:20,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:20,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2021-03-11 02:33:20,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,168 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,168 INFO L185 Difference]: Start difference. First operand has 91 places, 72 transitions, 242 flow. Second operand 13 states and 944 transitions. [2021-03-11 02:33:20,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 163 transitions, 1148 flow [2021-03-11 02:33:20,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 163 transitions, 1056 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 02:33:20,188 INFO L241 Difference]: Finished difference. Result has 107 places, 80 transitions, 388 flow [2021-03-11 02:33:20,188 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=388, PETRI_PLACES=107, PETRI_TRANSITIONS=80} [2021-03-11 02:33:20,188 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2021-03-11 02:33:20,188 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 80 transitions, 388 flow [2021-03-11 02:33:20,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,189 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:20,189 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:20,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:33:20,189 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:20,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1185349420, now seen corresponding path program 1 times [2021-03-11 02:33:20,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:20,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897800584] [2021-03-11 02:33:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:20,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,284 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:20,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:20,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:20,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897800584] [2021-03-11 02:33:20,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:20,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:20,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033641321] [2021-03-11 02:33:20,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:20,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:20,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:20,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:20,330 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:20,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 80 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:20,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:20,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:20,556 INFO L129 PetriNetUnfolder]: 315/945 cut-off events. [2021-03-11 02:33:20,556 INFO L130 PetriNetUnfolder]: For 5024/6028 co-relation queries the response was YES. [2021-03-11 02:33:20,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3646 conditions, 945 events. 315/945 cut-off events. For 5024/6028 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6567 event pairs, 40 based on Foata normal form. 75/992 useless extension candidates. Maximal degree in co-relation 3597. Up to 302 conditions per place. [2021-03-11 02:33:20,566 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 17 selfloop transitions, 7 changer transitions 40/128 dead transitions. [2021-03-11 02:33:20,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 128 transitions, 956 flow [2021-03-11 02:33:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2021-03-11 02:33:20,568 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8875816993464052 [2021-03-11 02:33:20,568 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2021-03-11 02:33:20,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2021-03-11 02:33:20,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:20,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2021-03-11 02:33:20,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.44444444444444) internal successors, (679), 9 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,572 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,572 INFO L185 Difference]: Start difference. First operand has 107 places, 80 transitions, 388 flow. Second operand 9 states and 679 transitions. [2021-03-11 02:33:20,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 128 transitions, 956 flow [2021-03-11 02:33:20,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 128 transitions, 922 flow, removed 17 selfloop flow, removed 0 redundant places. [2021-03-11 02:33:20,587 INFO L241 Difference]: Finished difference. Result has 113 places, 86 transitions, 501 flow [2021-03-11 02:33:20,587 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=501, PETRI_PLACES=113, PETRI_TRANSITIONS=86} [2021-03-11 02:33:20,588 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 34 predicate places. [2021-03-11 02:33:20,588 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 86 transitions, 501 flow [2021-03-11 02:33:20,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,588 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:20,588 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:20,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:33:20,588 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:20,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:20,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2023888595, now seen corresponding path program 1 times [2021-03-11 02:33:20,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:20,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014927049] [2021-03-11 02:33:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:20,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:20,693 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:20,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:20,703 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:20,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:20,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:20,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:20,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:20,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014927049] [2021-03-11 02:33:20,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:20,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:20,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833715021] [2021-03-11 02:33:20,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:20,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:20,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:20,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:20,746 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:20,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 86 transitions, 501 flow. Second operand has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:20,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:20,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:20,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:21,063 INFO L129 PetriNetUnfolder]: 222/746 cut-off events. [2021-03-11 02:33:21,063 INFO L130 PetriNetUnfolder]: For 4991/6813 co-relation queries the response was YES. [2021-03-11 02:33:21,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 746 events. 222/746 cut-off events. For 4991/6813 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4824 event pairs, 25 based on Foata normal form. 32/760 useless extension candidates. Maximal degree in co-relation 3176. Up to 195 conditions per place. [2021-03-11 02:33:21,073 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 33 selfloop transitions, 17 changer transitions 49/149 dead transitions. [2021-03-11 02:33:21,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 149 transitions, 1407 flow [2021-03-11 02:33:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 923 transitions. [2021-03-11 02:33:21,077 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8352941176470589 [2021-03-11 02:33:21,077 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 923 transitions. [2021-03-11 02:33:21,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 923 transitions. [2021-03-11 02:33:21,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:21,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 923 transitions. [2021-03-11 02:33:21,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.0) internal successors, (923), 13 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,084 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,084 INFO L185 Difference]: Start difference. First operand has 113 places, 86 transitions, 501 flow. Second operand 13 states and 923 transitions. [2021-03-11 02:33:21,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 149 transitions, 1407 flow [2021-03-11 02:33:21,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 149 transitions, 1326 flow, removed 36 selfloop flow, removed 10 redundant places. [2021-03-11 02:33:21,101 INFO L241 Difference]: Finished difference. Result has 121 places, 92 transitions, 606 flow [2021-03-11 02:33:21,101 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=606, PETRI_PLACES=121, PETRI_TRANSITIONS=92} [2021-03-11 02:33:21,101 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 42 predicate places. [2021-03-11 02:33:21,101 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 92 transitions, 606 flow [2021-03-11 02:33:21,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,102 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:21,102 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:21,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:33:21,102 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:21,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:21,103 INFO L82 PathProgramCache]: Analyzing trace with hash -19459011, now seen corresponding path program 1 times [2021-03-11 02:33:21,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:21,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970954444] [2021-03-11 02:33:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:21,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,155 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:21,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:21,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:21,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970954444] [2021-03-11 02:33:21,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:21,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:21,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278504940] [2021-03-11 02:33:21,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:21,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:21,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:21,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:21,192 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:21,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 92 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:21,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:21,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:21,386 INFO L129 PetriNetUnfolder]: 137/625 cut-off events. [2021-03-11 02:33:21,386 INFO L130 PetriNetUnfolder]: For 5196/6357 co-relation queries the response was YES. [2021-03-11 02:33:21,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2658 conditions, 625 events. 137/625 cut-off events. For 5196/6357 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4210 event pairs, 20 based on Foata normal form. 46/653 useless extension candidates. Maximal degree in co-relation 2596. Up to 154 conditions per place. [2021-03-11 02:33:21,393 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 20 selfloop transitions, 8 changer transitions 20/116 dead transitions. [2021-03-11 02:33:21,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 116 transitions, 1014 flow [2021-03-11 02:33:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 673 transitions. [2021-03-11 02:33:21,395 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8797385620915033 [2021-03-11 02:33:21,395 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 673 transitions. [2021-03-11 02:33:21,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 673 transitions. [2021-03-11 02:33:21,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:21,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 673 transitions. [2021-03-11 02:33:21,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.77777777777777) internal successors, (673), 9 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,400 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,400 INFO L185 Difference]: Start difference. First operand has 121 places, 92 transitions, 606 flow. Second operand 9 states and 673 transitions. [2021-03-11 02:33:21,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 116 transitions, 1014 flow [2021-03-11 02:33:21,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 116 transitions, 934 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-03-11 02:33:21,416 INFO L241 Difference]: Finished difference. Result has 123 places, 91 transitions, 606 flow [2021-03-11 02:33:21,416 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=606, PETRI_PLACES=123, PETRI_TRANSITIONS=91} [2021-03-11 02:33:21,416 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-03-11 02:33:21,416 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 91 transitions, 606 flow [2021-03-11 02:33:21,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,417 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:21,417 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:21,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:33:21,417 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:21,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:21,418 INFO L82 PathProgramCache]: Analyzing trace with hash 327710936, now seen corresponding path program 1 times [2021-03-11 02:33:21,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:21,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918157075] [2021-03-11 02:33:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:21,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,505 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:21,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:21,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:21,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918157075] [2021-03-11 02:33:21,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:21,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:21,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804704125] [2021-03-11 02:33:21,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:21,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:21,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:21,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:21,542 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:21,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 91 transitions, 606 flow. Second operand has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:21,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:21,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:21,688 INFO L129 PetriNetUnfolder]: 161/660 cut-off events. [2021-03-11 02:33:21,688 INFO L130 PetriNetUnfolder]: For 6877/8139 co-relation queries the response was YES. [2021-03-11 02:33:21,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3181 conditions, 660 events. 161/660 cut-off events. For 6877/8139 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4565 event pairs, 64 based on Foata normal form. 41/683 useless extension candidates. Maximal degree in co-relation 3114. Up to 157 conditions per place. [2021-03-11 02:33:21,695 INFO L132 encePairwiseOnDemand]: 76/85 looper letters, 13 selfloop transitions, 7 changer transitions 27/112 dead transitions. [2021-03-11 02:33:21,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 112 transitions, 989 flow [2021-03-11 02:33:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 02:33:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 02:33:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 517 transitions. [2021-03-11 02:33:21,697 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8689075630252101 [2021-03-11 02:33:21,697 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 517 transitions. [2021-03-11 02:33:21,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 517 transitions. [2021-03-11 02:33:21,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:21,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 517 transitions. [2021-03-11 02:33:21,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 85.0) internal successors, (680), 8 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,700 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 85.0) internal successors, (680), 8 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,700 INFO L185 Difference]: Start difference. First operand has 123 places, 91 transitions, 606 flow. Second operand 7 states and 517 transitions. [2021-03-11 02:33:21,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 112 transitions, 989 flow [2021-03-11 02:33:21,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 112 transitions, 935 flow, removed 23 selfloop flow, removed 13 redundant places. [2021-03-11 02:33:21,715 INFO L241 Difference]: Finished difference. Result has 114 places, 84 transitions, 512 flow [2021-03-11 02:33:21,715 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=512, PETRI_PLACES=114, PETRI_TRANSITIONS=84} [2021-03-11 02:33:21,716 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 35 predicate places. [2021-03-11 02:33:21,716 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 84 transitions, 512 flow [2021-03-11 02:33:21,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,716 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:21,716 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:21,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:33:21,716 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:21,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:21,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2146456244, now seen corresponding path program 2 times [2021-03-11 02:33:21,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:21,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947928189] [2021-03-11 02:33:21,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:21,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:21,788 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:21,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:21,799 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:21,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:21,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:21,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:21,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:21,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947928189] [2021-03-11 02:33:21,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:21,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:21,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388259607] [2021-03-11 02:33:21,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:21,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:21,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:21,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:21,835 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:21,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 84 transitions, 512 flow. Second operand has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:21,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:21,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:21,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:22,050 INFO L129 PetriNetUnfolder]: 106/479 cut-off events. [2021-03-11 02:33:22,051 INFO L130 PetriNetUnfolder]: For 3928/4428 co-relation queries the response was YES. [2021-03-11 02:33:22,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 479 events. 106/479 cut-off events. For 3928/4428 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2943 event pairs, 9 based on Foata normal form. 18/492 useless extension candidates. Maximal degree in co-relation 2120. Up to 92 conditions per place. [2021-03-11 02:33:22,055 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 27 selfloop transitions, 16 changer transitions 32/125 dead transitions. [2021-03-11 02:33:22,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 1237 flow [2021-03-11 02:33:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:22,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2021-03-11 02:33:22,058 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8190045248868778 [2021-03-11 02:33:22,058 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 905 transitions. [2021-03-11 02:33:22,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 905 transitions. [2021-03-11 02:33:22,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:22,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 905 transitions. [2021-03-11 02:33:22,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.61538461538461) internal successors, (905), 13 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,063 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,063 INFO L185 Difference]: Start difference. First operand has 114 places, 84 transitions, 512 flow. Second operand 13 states and 905 transitions. [2021-03-11 02:33:22,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 1237 flow [2021-03-11 02:33:22,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 125 transitions, 1159 flow, removed 15 selfloop flow, removed 7 redundant places. [2021-03-11 02:33:22,075 INFO L241 Difference]: Finished difference. Result has 128 places, 86 transitions, 590 flow [2021-03-11 02:33:22,075 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=590, PETRI_PLACES=128, PETRI_TRANSITIONS=86} [2021-03-11 02:33:22,075 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 49 predicate places. [2021-03-11 02:33:22,075 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 86 transitions, 590 flow [2021-03-11 02:33:22,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,076 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:22,076 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:22,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:33:22,076 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:22,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1765410205, now seen corresponding path program 1 times [2021-03-11 02:33:22,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:22,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351048731] [2021-03-11 02:33:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:22,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:22,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:22,131 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:22,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:22,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:22,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:22,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:22,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351048731] [2021-03-11 02:33:22,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:22,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:22,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707425725] [2021-03-11 02:33:22,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:22,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:22,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:22,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:22,163 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-03-11 02:33:22,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 86 transitions, 590 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:22,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-03-11 02:33:22,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:22,301 INFO L129 PetriNetUnfolder]: 66/433 cut-off events. [2021-03-11 02:33:22,301 INFO L130 PetriNetUnfolder]: For 4291/4560 co-relation queries the response was YES. [2021-03-11 02:33:22,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 433 events. 66/433 cut-off events. For 4291/4560 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2770 event pairs, 15 based on Foata normal form. 15/442 useless extension candidates. Maximal degree in co-relation 1850. Up to 73 conditions per place. [2021-03-11 02:33:22,306 INFO L132 encePairwiseOnDemand]: 79/85 looper letters, 16 selfloop transitions, 6 changer transitions 16/104 dead transitions. [2021-03-11 02:33:22,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 104 transitions, 907 flow [2021-03-11 02:33:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:33:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:33:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 667 transitions. [2021-03-11 02:33:22,308 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8718954248366013 [2021-03-11 02:33:22,308 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 667 transitions. [2021-03-11 02:33:22,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 667 transitions. [2021-03-11 02:33:22,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:22,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 667 transitions. [2021-03-11 02:33:22,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.11111111111111) internal successors, (667), 9 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,311 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,312 INFO L185 Difference]: Start difference. First operand has 128 places, 86 transitions, 590 flow. Second operand 9 states and 667 transitions. [2021-03-11 02:33:22,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 104 transitions, 907 flow [2021-03-11 02:33:22,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 104 transitions, 816 flow, removed 34 selfloop flow, removed 11 redundant places. [2021-03-11 02:33:22,322 INFO L241 Difference]: Finished difference. Result has 123 places, 83 transitions, 546 flow [2021-03-11 02:33:22,323 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=546, PETRI_PLACES=123, PETRI_TRANSITIONS=83} [2021-03-11 02:33:22,323 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-03-11 02:33:22,323 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 83 transitions, 546 flow [2021-03-11 02:33:22,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,323 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:22,324 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:22,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:33:22,324 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:22,324 INFO L82 PathProgramCache]: Analyzing trace with hash -473505393, now seen corresponding path program 1 times [2021-03-11 02:33:22,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:22,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823674292] [2021-03-11 02:33:22,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:22,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:22,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:22,366 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:22,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:22,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:22,389 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:22,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:22,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:22,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:22,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:22,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823674292] [2021-03-11 02:33:22,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:22,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:33:22,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536771174] [2021-03-11 02:33:22,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:33:22,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:22,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:33:22,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:33:22,400 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:22,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 83 transitions, 546 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:22,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:22,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:22,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:22,987 INFO L129 PetriNetUnfolder]: 2558/4805 cut-off events. [2021-03-11 02:33:22,987 INFO L130 PetriNetUnfolder]: For 7782/8063 co-relation queries the response was YES. [2021-03-11 02:33:23,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10859 conditions, 4805 events. 2558/4805 cut-off events. For 7782/8063 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 40785 event pairs, 128 based on Foata normal form. 34/4307 useless extension candidates. Maximal degree in co-relation 10793. Up to 1666 conditions per place. [2021-03-11 02:33:23,030 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 29 selfloop transitions, 20 changer transitions 0/120 dead transitions. [2021-03-11 02:33:23,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 120 transitions, 718 flow [2021-03-11 02:33:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:33:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:33:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 751 transitions. [2021-03-11 02:33:23,032 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8835294117647059 [2021-03-11 02:33:23,032 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 751 transitions. [2021-03-11 02:33:23,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 751 transitions. [2021-03-11 02:33:23,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:23,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 751 transitions. [2021-03-11 02:33:23,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,036 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,036 INFO L185 Difference]: Start difference. First operand has 123 places, 83 transitions, 546 flow. Second operand 10 states and 751 transitions. [2021-03-11 02:33:23,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 120 transitions, 718 flow [2021-03-11 02:33:23,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 120 transitions, 659 flow, removed 14 selfloop flow, removed 10 redundant places. [2021-03-11 02:33:23,051 INFO L241 Difference]: Finished difference. Result has 122 places, 101 transitions, 630 flow [2021-03-11 02:33:23,052 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=630, PETRI_PLACES=122, PETRI_TRANSITIONS=101} [2021-03-11 02:33:23,052 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 43 predicate places. [2021-03-11 02:33:23,052 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 101 transitions, 630 flow [2021-03-11 02:33:23,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,052 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:23,053 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:23,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 02:33:23,053 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:23,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:23,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1019627589, now seen corresponding path program 1 times [2021-03-11 02:33:23,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:23,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510536891] [2021-03-11 02:33:23,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:23,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:23,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:23,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:23,095 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:23,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:23,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:23,117 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:23,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:23,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:23,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510536891] [2021-03-11 02:33:23,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:23,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:23,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271076271] [2021-03-11 02:33:23,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:23,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:23,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:23,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:23,128 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:23,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 101 transitions, 630 flow. Second operand has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:23,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:23,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:23,878 INFO L129 PetriNetUnfolder]: 2880/5525 cut-off events. [2021-03-11 02:33:23,878 INFO L130 PetriNetUnfolder]: For 19400/23846 co-relation queries the response was YES. [2021-03-11 02:33:23,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22107 conditions, 5525 events. 2880/5525 cut-off events. For 19400/23846 co-relation queries the response was YES. Maximal size of possible extension queue 787. Compared 49183 event pairs, 41 based on Foata normal form. 518/5614 useless extension candidates. Maximal degree in co-relation 22042. Up to 3127 conditions per place. [2021-03-11 02:33:23,937 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 34 selfloop transitions, 38 changer transitions 0/143 dead transitions. [2021-03-11 02:33:23,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 143 transitions, 1054 flow [2021-03-11 02:33:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:33:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:33:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 978 transitions. [2021-03-11 02:33:23,940 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8850678733031674 [2021-03-11 02:33:23,940 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 978 transitions. [2021-03-11 02:33:23,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 978 transitions. [2021-03-11 02:33:23,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:23,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 978 transitions. [2021-03-11 02:33:23,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.23076923076923) internal successors, (978), 13 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,947 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,947 INFO L185 Difference]: Start difference. First operand has 122 places, 101 transitions, 630 flow. Second operand 13 states and 978 transitions. [2021-03-11 02:33:23,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 143 transitions, 1054 flow [2021-03-11 02:33:23,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 143 transitions, 1008 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-03-11 02:33:23,975 INFO L241 Difference]: Finished difference. Result has 134 places, 121 transitions, 877 flow [2021-03-11 02:33:23,976 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=877, PETRI_PLACES=134, PETRI_TRANSITIONS=121} [2021-03-11 02:33:23,976 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 55 predicate places. [2021-03-11 02:33:23,976 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 121 transitions, 877 flow [2021-03-11 02:33:23,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:23,977 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:23,977 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:23,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 02:33:23,977 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1263866104, now seen corresponding path program 1 times [2021-03-11 02:33:23,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:23,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342093174] [2021-03-11 02:33:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:24,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:24,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:24,037 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:24,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:24,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:24,062 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:24,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:24,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:24,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:24,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342093174] [2021-03-11 02:33:24,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:24,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:24,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952657681] [2021-03-11 02:33:24,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:24,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:24,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:24,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:24,080 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:24,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 121 transitions, 877 flow. Second operand has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:24,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:24,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:24,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:24,994 INFO L129 PetriNetUnfolder]: 2856/5570 cut-off events. [2021-03-11 02:33:24,994 INFO L130 PetriNetUnfolder]: For 52800/65828 co-relation queries the response was YES. [2021-03-11 02:33:25,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31518 conditions, 5570 events. 2856/5570 cut-off events. For 52800/65828 co-relation queries the response was YES. Maximal size of possible extension queue 812. Compared 51073 event pairs, 6 based on Foata normal form. 718/5871 useless extension candidates. Maximal degree in co-relation 31450. Up to 3096 conditions per place. [2021-03-11 02:33:25,049 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 28 selfloop transitions, 58 changer transitions 12/169 dead transitions. [2021-03-11 02:33:25,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 169 transitions, 1579 flow [2021-03-11 02:33:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 02:33:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 02:33:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1205 transitions. [2021-03-11 02:33:25,052 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8860294117647058 [2021-03-11 02:33:25,052 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1205 transitions. [2021-03-11 02:33:25,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1205 transitions. [2021-03-11 02:33:25,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:25,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1205 transitions. [2021-03-11 02:33:25,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.3125) internal successors, (1205), 16 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,062 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,062 INFO L185 Difference]: Start difference. First operand has 134 places, 121 transitions, 877 flow. Second operand 16 states and 1205 transitions. [2021-03-11 02:33:25,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 169 transitions, 1579 flow [2021-03-11 02:33:25,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 169 transitions, 1470 flow, removed 45 selfloop flow, removed 4 redundant places. [2021-03-11 02:33:25,236 INFO L241 Difference]: Finished difference. Result has 149 places, 147 transitions, 1237 flow [2021-03-11 02:33:25,237 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1237, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2021-03-11 02:33:25,237 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 70 predicate places. [2021-03-11 02:33:25,237 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 1237 flow [2021-03-11 02:33:25,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,237 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:25,237 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:25,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 02:33:25,238 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1799608265, now seen corresponding path program 1 times [2021-03-11 02:33:25,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:25,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279549550] [2021-03-11 02:33:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:25,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:25,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:25,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:25,298 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:25,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:25,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:25,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:25,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:25,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:25,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279549550] [2021-03-11 02:33:25,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:25,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:33:25,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820583475] [2021-03-11 02:33:25,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:33:25,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:25,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:33:25,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:33:25,335 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:25,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 1237 flow. Second operand has 7 states, 7 states have (on average 71.57142857142857) internal successors, (501), 7 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:25,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:25,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:25,869 INFO L129 PetriNetUnfolder]: 1883/5140 cut-off events. [2021-03-11 02:33:25,869 INFO L130 PetriNetUnfolder]: For 39354/40901 co-relation queries the response was YES. [2021-03-11 02:33:25,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23484 conditions, 5140 events. 1883/5140 cut-off events. For 39354/40901 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 56943 event pairs, 8 based on Foata normal form. 15/4866 useless extension candidates. Maximal degree in co-relation 23410. Up to 1752 conditions per place. [2021-03-11 02:33:25,907 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 15 selfloop transitions, 9 changer transitions 5/157 dead transitions. [2021-03-11 02:33:25,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 157 transitions, 1346 flow [2021-03-11 02:33:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:33:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:33:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 583 transitions. [2021-03-11 02:33:25,911 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8573529411764705 [2021-03-11 02:33:25,911 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 583 transitions. [2021-03-11 02:33:25,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 583 transitions. [2021-03-11 02:33:25,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:25,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 583 transitions. [2021-03-11 02:33:25,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,918 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:25,918 INFO L185 Difference]: Start difference. First operand has 149 places, 147 transitions, 1237 flow. Second operand 8 states and 583 transitions. [2021-03-11 02:33:25,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 157 transitions, 1346 flow [2021-03-11 02:33:26,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 157 transitions, 1021 flow, removed 120 selfloop flow, removed 14 redundant places. [2021-03-11 02:33:26,465 INFO L241 Difference]: Finished difference. Result has 147 places, 148 transitions, 948 flow [2021-03-11 02:33:26,465 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=948, PETRI_PLACES=147, PETRI_TRANSITIONS=148} [2021-03-11 02:33:26,465 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 68 predicate places. [2021-03-11 02:33:26,465 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 148 transitions, 948 flow [2021-03-11 02:33:26,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.57142857142857) internal successors, (501), 7 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:26,466 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:26,466 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:26,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 02:33:26,466 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:26,466 INFO L82 PathProgramCache]: Analyzing trace with hash 69840537, now seen corresponding path program 2 times [2021-03-11 02:33:26,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:26,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816902359] [2021-03-11 02:33:26,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:26,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:26,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:26,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:26,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:26,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:26,507 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:33:26,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:33:26,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:33:26,532 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:33:26,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:26,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:26,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816902359] [2021-03-11 02:33:26,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:26,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 02:33:26,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52638710] [2021-03-11 02:33:26,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 02:33:26,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:26,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 02:33:26,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-11 02:33:26,546 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2021-03-11 02:33:26,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 148 transitions, 948 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:26,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:26,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2021-03-11 02:33:26,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:27,421 INFO L129 PetriNetUnfolder]: 3035/6248 cut-off events. [2021-03-11 02:33:27,421 INFO L130 PetriNetUnfolder]: For 12686/18021 co-relation queries the response was YES. [2021-03-11 02:33:27,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22720 conditions, 6248 events. 3035/6248 cut-off events. For 12686/18021 co-relation queries the response was YES. Maximal size of possible extension queue 1005. Compared 62050 event pairs, 3 based on Foata normal form. 754/6513 useless extension candidates. Maximal degree in co-relation 22681. Up to 936 conditions per place. [2021-03-11 02:33:27,455 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 4 selfloop transitions, 19 changer transitions 105/183 dead transitions. [2021-03-11 02:33:27,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 183 transitions, 1409 flow [2021-03-11 02:33:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:33:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:33:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1412 transitions. [2021-03-11 02:33:27,458 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8743034055727554 [2021-03-11 02:33:27,458 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1412 transitions. [2021-03-11 02:33:27,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1412 transitions. [2021-03-11 02:33:27,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:27,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1412 transitions. [2021-03-11 02:33:27,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 74.3157894736842) internal successors, (1412), 19 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 85.0) internal successors, (1700), 20 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,463 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 85.0) internal successors, (1700), 20 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,463 INFO L185 Difference]: Start difference. First operand has 147 places, 148 transitions, 948 flow. Second operand 19 states and 1412 transitions. [2021-03-11 02:33:27,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 183 transitions, 1409 flow [2021-03-11 02:33:27,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 183 transitions, 1363 flow, removed 13 selfloop flow, removed 10 redundant places. [2021-03-11 02:33:27,669 INFO L241 Difference]: Finished difference. Result has 158 places, 78 transitions, 408 flow [2021-03-11 02:33:27,669 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=408, PETRI_PLACES=158, PETRI_TRANSITIONS=78} [2021-03-11 02:33:27,670 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 79 predicate places. [2021-03-11 02:33:27,670 INFO L480 AbstractCegarLoop]: Abstraction has has 158 places, 78 transitions, 408 flow [2021-03-11 02:33:27,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,670 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:33:27,670 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:33:27,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 02:33:27,671 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:33:27,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:33:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash -340892316, now seen corresponding path program 1 times [2021-03-11 02:33:27,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:33:27,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127222410] [2021-03-11 02:33:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:33:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:33:27,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:27,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:27,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:27,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:27,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:33:27,708 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:33:27,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:33:27,719 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:33:27,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:33:27,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:27,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:27,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:27,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:33:27,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:33:27,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:33:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:33:27,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127222410] [2021-03-11 02:33:27,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:33:27,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:33:27,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937808271] [2021-03-11 02:33:27,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:33:27,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:33:27,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:33:27,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:33:27,755 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2021-03-11 02:33:27,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 78 transitions, 408 flow. Second operand has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:33:27,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2021-03-11 02:33:27,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:33:27,817 INFO L129 PetriNetUnfolder]: 28/161 cut-off events. [2021-03-11 02:33:27,817 INFO L130 PetriNetUnfolder]: For 302/334 co-relation queries the response was YES. [2021-03-11 02:33:27,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 161 events. 28/161 cut-off events. For 302/334 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 558 event pairs, 0 based on Foata normal form. 1/157 useless extension candidates. Maximal degree in co-relation 411. Up to 22 conditions per place. [2021-03-11 02:33:27,818 INFO L132 encePairwiseOnDemand]: 76/85 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2021-03-11 02:33:27,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 79 transitions, 479 flow [2021-03-11 02:33:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:33:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:33:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 540 transitions. [2021-03-11 02:33:27,819 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-11 02:33:27,819 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 540 transitions. [2021-03-11 02:33:27,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 540 transitions. [2021-03-11 02:33:27,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:33:27,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 540 transitions. [2021-03-11 02:33:27,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,822 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,822 INFO L185 Difference]: Start difference. First operand has 158 places, 78 transitions, 408 flow. Second operand 8 states and 540 transitions. [2021-03-11 02:33:27,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 79 transitions, 479 flow [2021-03-11 02:33:27,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 79 transitions, 267 flow, removed 28 selfloop flow, removed 45 redundant places. [2021-03-11 02:33:27,824 INFO L241 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2021-03-11 02:33:27,824 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2021-03-11 02:33:27,824 INFO L335 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-03-11 02:33:27,824 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2021-03-11 02:33:27,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:33:27,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 02:33:27,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:33:27 BasicIcfg [2021-03-11 02:33:27,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:33:27,830 INFO L168 Benchmark]: Toolchain (without parser) took 10348.34 ms. Allocated memory was 354.4 MB in the beginning and 702.5 MB in the end (delta: 348.1 MB). Free memory was 317.7 MB in the beginning and 298.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 371.5 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:27,830 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.9 MB in the beginning and 335.8 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:33:27,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.46 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 317.9 MB in the end (delta: -812.2 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:27,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.21 ms. Allocated memory is still 354.4 MB. Free memory was 317.9 MB in the beginning and 315.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:27,830 INFO L168 Benchmark]: Boogie Preprocessor took 32.89 ms. Allocated memory is still 354.4 MB. Free memory was 315.8 MB in the beginning and 314.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:27,830 INFO L168 Benchmark]: RCFGBuilder took 399.99 ms. Allocated memory is still 354.4 MB. Free memory was 314.0 MB in the beginning and 289.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:27,831 INFO L168 Benchmark]: TraceAbstraction took 9418.39 ms. Allocated memory was 354.4 MB in the beginning and 702.5 MB in the end (delta: 348.1 MB). Free memory was 288.5 MB in the beginning and 298.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 342.6 MB. Max. memory is 16.0 GB. [2021-03-11 02:33:27,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.9 MB in the beginning and 335.8 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 433.46 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 317.9 MB in the end (delta: -812.2 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.21 ms. Allocated memory is still 354.4 MB. Free memory was 317.9 MB in the beginning and 315.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.89 ms. Allocated memory is still 354.4 MB. Free memory was 315.8 MB in the beginning and 314.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 399.99 ms. Allocated memory is still 354.4 MB. Free memory was 314.0 MB in the beginning and 289.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9418.39 ms. Allocated memory was 354.4 MB in the beginning and 702.5 MB in the end (delta: 348.1 MB). Free memory was 288.5 MB in the beginning and 298.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 342.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 9294.8ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7341.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 88.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 229 SDtfs, 515 SDslu, 714 SDs, 0 SdLazy, 743 SolverSat, 195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 546.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1687.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1237occurred in iteration=11, InterpolantAutomatonStates: 156, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 45.3ms SsaConstructionTime, 283.9ms SatisfiabilityAnalysisTime, 1300.6ms InterpolantComputationTime, 699 NumberOfCodeBlocks, 699 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 685 ConstructedInterpolants, 0 QuantifiedInterpolants, 2587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...