/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:41:35,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:41:35,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:41:35,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:41:35,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:41:35,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:41:35,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:41:35,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:41:35,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:41:35,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:41:35,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:41:35,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:41:35,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:41:35,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:41:35,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:41:35,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:41:35,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:41:35,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:41:35,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:41:35,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:41:35,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:41:35,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:41:35,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:41:35,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:41:35,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:41:35,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:41:35,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:41:35,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:41:35,566 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:41:35,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:41:35,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:41:35,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:41:35,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:41:35,593 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:41:35,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:41:35,593 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:41:35,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:41:35,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:41:35,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:41:35,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:41:35,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:41:35,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:41:35,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:41:35,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:41:35,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:41:35,597 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:41:35,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:41:35,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:41:35,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:41:35,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:41:35,821 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:41:35,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-03-26 10:41:35,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ea93d7c/4a444c71d4cb4bcfa0c25dda4d192921/FLAG5bc183494 [2021-03-26 10:41:36,251 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:41:36,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-03-26 10:41:36,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ea93d7c/4a444c71d4cb4bcfa0c25dda4d192921/FLAG5bc183494 [2021-03-26 10:41:36,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ea93d7c/4a444c71d4cb4bcfa0c25dda4d192921 [2021-03-26 10:41:36,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:41:36,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:41:36,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:41:36,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:41:36,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:41:36,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:41:36" (1/1) ... [2021-03-26 10:41:36,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b27e54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:36, skipping insertion in model container [2021-03-26 10:41:36,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:41:36" (1/1) ... [2021-03-26 10:41:36,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:41:36,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:41:36,775 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/safe030_tso.opt.i[949,962] [2021-03-26 10:41:36,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:41:36,920 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:41:36,928 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/safe030_tso.opt.i[949,962] [2021-03-26 10:41:36,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:41:37,013 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:41:37,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37 WrapperNode [2021-03-26 10:41:37,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:41:37,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:41:37,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:41:37,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:41:37,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:41:37,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:41:37,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:41:37,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:41:37,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (1/1) ... [2021-03-26 10:41:37,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:41:37,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:41:37,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:41:37,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:41:37,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (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 [2021-03-26 10:41:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:41:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:41:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:41:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:41:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:41:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:41:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:41:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:41:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:41:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:41:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:41:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:41:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:41:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:41:37,111 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:41:37,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:41:37,388 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:41:37,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:41:37 BoogieIcfgContainer [2021-03-26 10:41:37,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:41:37,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:41:37,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:41:37,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:41:37,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:41:36" (1/3) ... [2021-03-26 10:41:37,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76214019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:41:37, skipping insertion in model container [2021-03-26 10:41:37,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:37" (2/3) ... [2021-03-26 10:41:37,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76214019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:41:37, skipping insertion in model container [2021-03-26 10:41:37,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:41:37" (3/3) ... [2021-03-26 10:41:37,394 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2021-03-26 10:41:37,398 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:41:37,401 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:41:37,401 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:41:37,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,424 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,424 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,426 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,426 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:37,442 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:41:37,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:41:37,476 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:41:37,477 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:41:37,477 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:41:37,477 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:41:37,477 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:41:37,477 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:41:37,477 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:41:37,477 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:41:37,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 10:41:37,524 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-26 10:41:37,525 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:37,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:41:37,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-03-26 10:41:37,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-03-26 10:41:37,533 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:37,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 10:41:37,544 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-26 10:41:37,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-03-26 10:41:37,571 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-26 10:41:37,572 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:37,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:41:37,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:41:38,946 INFO L154 LiptonReduction]: Checked pairs total: 1207 [2021-03-26 10:41:38,947 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 10:41:38,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1416 [2021-03-26 10:41:38,955 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 10:41:38,955 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:38,955 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:38,955 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:38,955 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:38,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1494745171, now seen corresponding path program 1 times [2021-03-26 10:41:38,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:38,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936702008] [2021-03-26 10:41:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:39,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:39,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:39,098 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:41:39,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:39,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936702008] [2021-03-26 10:41:39,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:39,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:39,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496730952] [2021-03-26 10:41:39,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:41:39,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:39,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:41:39,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:41:39,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 111 [2021-03-26 10:41:39,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:39,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 111 [2021-03-26 10:41:39,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:39,175 INFO L129 PetriNetUnfolder]: 90/214 cut-off events. [2021-03-26 10:41:39,175 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:39,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 214 events. 90/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 995 event pairs, 28 based on Foata normal form. 14/218 useless extension candidates. Maximal degree in co-relation 380. Up to 85 conditions per place. [2021-03-26 10:41:39,177 INFO L132 encePairwiseOnDemand]: 103/111 looper letters, 7 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2021-03-26 10:41:39,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 89 flow [2021-03-26 10:41:39,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:39,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2021-03-26 10:41:39,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8378378378378378 [2021-03-26 10:41:39,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2021-03-26 10:41:39,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2021-03-26 10:41:39,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:39,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2021-03-26 10:41:39,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,196 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 49 flow. Second operand 3 states and 279 transitions. [2021-03-26 10:41:39,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 89 flow [2021-03-26 10:41:39,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:41:39,199 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 100 flow [2021-03-26 10:41:39,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2021-03-26 10:41:39,200 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2021-03-26 10:41:39,201 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:39,201 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 26 transitions, 100 flow [2021-03-26 10:41:39,201 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 26 transitions, 100 flow [2021-03-26 10:41:39,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 100 flow [2021-03-26 10:41:39,214 INFO L129 PetriNetUnfolder]: 90/214 cut-off events. [2021-03-26 10:41:39,214 INFO L130 PetriNetUnfolder]: For 25/33 co-relation queries the response was YES. [2021-03-26 10:41:39,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 214 events. 90/214 cut-off events. For 25/33 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1007 event pairs, 34 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 467. Up to 85 conditions per place. [2021-03-26 10:41:39,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 172 [2021-03-26 10:41:39,627 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-03-26 10:41:39,786 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-03-26 10:41:39,851 INFO L154 LiptonReduction]: Checked pairs total: 204 [2021-03-26 10:41:39,851 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:41:39,851 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 650 [2021-03-26 10:41:39,852 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 94 flow [2021-03-26 10:41:39,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,852 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:39,852 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:39,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:41:39,852 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:39,853 INFO L82 PathProgramCache]: Analyzing trace with hash -59456381, now seen corresponding path program 1 times [2021-03-26 10:41:39,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:39,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440981449] [2021-03-26 10:41:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:39,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:39,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:39,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:39,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:39,936 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:41:39,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:39,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440981449] [2021-03-26 10:41:39,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:39,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:39,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637208408] [2021-03-26 10:41:39,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:39,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:39,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:39,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:39,945 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 114 [2021-03-26 10:41:39,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:39,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 114 [2021-03-26 10:41:39,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:39,986 INFO L129 PetriNetUnfolder]: 75/184 cut-off events. [2021-03-26 10:41:39,986 INFO L130 PetriNetUnfolder]: For 43/112 co-relation queries the response was YES. [2021-03-26 10:41:39,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 184 events. 75/184 cut-off events. For 43/112 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 831 event pairs, 8 based on Foata normal form. 6/187 useless extension candidates. Maximal degree in co-relation 548. Up to 78 conditions per place. [2021-03-26 10:41:39,991 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 12 selfloop transitions, 11 changer transitions 0/32 dead transitions. [2021-03-26 10:41:39,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 186 flow [2021-03-26 10:41:39,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2021-03-26 10:41:39,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8245614035087719 [2021-03-26 10:41:39,996 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 376 transitions. [2021-03-26 10:41:39,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 376 transitions. [2021-03-26 10:41:39,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:39,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 376 transitions. [2021-03-26 10:41:39,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,002 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,002 INFO L185 Difference]: Start difference. First operand has 28 places, 23 transitions, 94 flow. Second operand 4 states and 376 transitions. [2021-03-26 10:41:40,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 186 flow [2021-03-26 10:41:40,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:40,005 INFO L241 Difference]: Finished difference. Result has 32 places, 30 transitions, 164 flow [2021-03-26 10:41:40,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2021-03-26 10:41:40,006 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2021-03-26 10:41:40,006 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 30 transitions, 164 flow [2021-03-26 10:41:40,007 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 164 flow [2021-03-26 10:41:40,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 164 flow [2021-03-26 10:41:40,021 INFO L129 PetriNetUnfolder]: 75/184 cut-off events. [2021-03-26 10:41:40,022 INFO L130 PetriNetUnfolder]: For 120/145 co-relation queries the response was YES. [2021-03-26 10:41:40,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 184 events. 75/184 cut-off events. For 120/145 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 856 event pairs, 12 based on Foata normal form. 1/179 useless extension candidates. Maximal degree in co-relation 511. Up to 78 conditions per place. [2021-03-26 10:41:40,024 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-26 10:41:40,027 INFO L154 LiptonReduction]: Checked pairs total: 80 [2021-03-26 10:41:40,027 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:40,028 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 10:41:40,029 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 164 flow [2021-03-26 10:41:40,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,029 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:41:40,030 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash 893337386, now seen corresponding path program 1 times [2021-03-26 10:41:40,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102618805] [2021-03-26 10:41:40,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,096 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:41:40,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102618805] [2021-03-26 10:41:40,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:40,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174053928] [2021-03-26 10:41:40,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:40,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:40,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:40,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 114 [2021-03-26 10:41:40,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 114 [2021-03-26 10:41:40,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,146 INFO L129 PetriNetUnfolder]: 64/164 cut-off events. [2021-03-26 10:41:40,146 INFO L130 PetriNetUnfolder]: For 144/231 co-relation queries the response was YES. [2021-03-26 10:41:40,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 164 events. 64/164 cut-off events. For 144/231 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 713 event pairs, 2 based on Foata normal form. 3/165 useless extension candidates. Maximal degree in co-relation 580. Up to 72 conditions per place. [2021-03-26 10:41:40,147 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 16 selfloop transitions, 16 changer transitions 0/41 dead transitions. [2021-03-26 10:41:40,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 302 flow [2021-03-26 10:41:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2021-03-26 10:41:40,150 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8245614035087719 [2021-03-26 10:41:40,150 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 376 transitions. [2021-03-26 10:41:40,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 376 transitions. [2021-03-26 10:41:40,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 376 transitions. [2021-03-26 10:41:40,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,152 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,153 INFO L185 Difference]: Start difference. First operand has 32 places, 30 transitions, 164 flow. Second operand 4 states and 376 transitions. [2021-03-26 10:41:40,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 302 flow [2021-03-26 10:41:40,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:41:40,155 INFO L241 Difference]: Finished difference. Result has 38 places, 39 transitions, 306 flow [2021-03-26 10:41:40,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2021-03-26 10:41:40,155 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 8 predicate places. [2021-03-26 10:41:40,155 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 39 transitions, 306 flow [2021-03-26 10:41:40,156 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 39 transitions, 306 flow [2021-03-26 10:41:40,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 39 transitions, 306 flow [2021-03-26 10:41:40,172 INFO L129 PetriNetUnfolder]: 64/164 cut-off events. [2021-03-26 10:41:40,172 INFO L130 PetriNetUnfolder]: For 358/404 co-relation queries the response was YES. [2021-03-26 10:41:40,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 164 events. 64/164 cut-off events. For 358/404 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 721 event pairs, 4 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 617. Up to 72 conditions per place. [2021-03-26 10:41:40,175 INFO L142 LiptonReduction]: Number of co-enabled transitions 206 [2021-03-26 10:41:40,181 INFO L154 LiptonReduction]: Checked pairs total: 100 [2021-03-26 10:41:40,181 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:40,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 10:41:40,182 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 306 flow [2021-03-26 10:41:40,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:41:40,182 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1923654629, now seen corresponding path program 1 times [2021-03-26 10:41:40,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771243893] [2021-03-26 10:41:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,225 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:41:40,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771243893] [2021-03-26 10:41:40,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:40,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205626683] [2021-03-26 10:41:40,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:40,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:40,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:40,234 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 114 [2021-03-26 10:41:40,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 114 [2021-03-26 10:41:40,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,261 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-03-26 10:41:40,261 INFO L130 PetriNetUnfolder]: For 342/442 co-relation queries the response was YES. [2021-03-26 10:41:40,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 151 events. 57/151 cut-off events. For 342/442 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 641 event pairs, 2 based on Foata normal form. 12/162 useless extension candidates. Maximal degree in co-relation 683. Up to 67 conditions per place. [2021-03-26 10:41:40,262 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 18 selfloop transitions, 22 changer transitions 0/49 dead transitions. [2021-03-26 10:41:40,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 480 flow [2021-03-26 10:41:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2021-03-26 10:41:40,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8245614035087719 [2021-03-26 10:41:40,263 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 376 transitions. [2021-03-26 10:41:40,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 376 transitions. [2021-03-26 10:41:40,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 376 transitions. [2021-03-26 10:41:40,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,265 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,265 INFO L185 Difference]: Start difference. First operand has 38 places, 39 transitions, 306 flow. Second operand 4 states and 376 transitions. [2021-03-26 10:41:40,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 480 flow [2021-03-26 10:41:40,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:41:40,270 INFO L241 Difference]: Finished difference. Result has 44 places, 47 transitions, 484 flow [2021-03-26 10:41:40,270 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=484, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2021-03-26 10:41:40,270 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2021-03-26 10:41:40,271 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 47 transitions, 484 flow [2021-03-26 10:41:40,271 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 47 transitions, 484 flow [2021-03-26 10:41:40,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 47 transitions, 484 flow [2021-03-26 10:41:40,281 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-03-26 10:41:40,283 INFO L130 PetriNetUnfolder]: For 711/763 co-relation queries the response was YES. [2021-03-26 10:41:40,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 151 events. 57/151 cut-off events. For 711/763 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 638 event pairs, 2 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 716. Up to 67 conditions per place. [2021-03-26 10:41:40,285 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 10:41:40,290 INFO L154 LiptonReduction]: Checked pairs total: 166 [2021-03-26 10:41:40,290 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:40,290 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 10:41:40,292 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 484 flow [2021-03-26 10:41:40,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:41:40,292 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1926692910, now seen corresponding path program 1 times [2021-03-26 10:41:40,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318257668] [2021-03-26 10:41:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:40,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318257668] [2021-03-26 10:41:40,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:40,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6546744] [2021-03-26 10:41:40,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:41:40,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:41:40,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:41:40,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 114 [2021-03-26 10:41:40,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 114 [2021-03-26 10:41:40,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,354 INFO L129 PetriNetUnfolder]: 54/162 cut-off events. [2021-03-26 10:41:40,354 INFO L130 PetriNetUnfolder]: For 738/790 co-relation queries the response was YES. [2021-03-26 10:41:40,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 162 events. 54/162 cut-off events. For 738/790 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 758 event pairs, 1 based on Foata normal form. 5/165 useless extension candidates. Maximal degree in co-relation 792. Up to 74 conditions per place. [2021-03-26 10:41:40,355 INFO L132 encePairwiseOnDemand]: 111/114 looper letters, 5 selfloop transitions, 8 changer transitions 2/47 dead transitions. [2021-03-26 10:41:40,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 47 transitions, 512 flow [2021-03-26 10:41:40,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2021-03-26 10:41:40,356 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2021-03-26 10:41:40,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2021-03-26 10:41:40,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2021-03-26 10:41:40,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2021-03-26 10:41:40,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,358 INFO L185 Difference]: Start difference. First operand has 44 places, 47 transitions, 484 flow. Second operand 3 states and 300 transitions. [2021-03-26 10:41:40,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 47 transitions, 512 flow [2021-03-26 10:41:40,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:41:40,362 INFO L241 Difference]: Finished difference. Result has 47 places, 45 transitions, 488 flow [2021-03-26 10:41:40,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2021-03-26 10:41:40,363 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 17 predicate places. [2021-03-26 10:41:40,363 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,363 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 45 transitions, 488 flow [2021-03-26 10:41:40,363 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 45 transitions, 488 flow [2021-03-26 10:41:40,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 45 transitions, 488 flow [2021-03-26 10:41:40,372 INFO L129 PetriNetUnfolder]: 51/156 cut-off events. [2021-03-26 10:41:40,372 INFO L130 PetriNetUnfolder]: For 834/887 co-relation queries the response was YES. [2021-03-26 10:41:40,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 156 events. 51/156 cut-off events. For 834/887 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 724 event pairs, 2 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 752. Up to 70 conditions per place. [2021-03-26 10:41:40,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 220 [2021-03-26 10:41:40,378 INFO L154 LiptonReduction]: Checked pairs total: 138 [2021-03-26 10:41:40,378 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:40,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 10:41:40,380 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 488 flow [2021-03-26 10:41:40,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,380 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:41:40,380 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,381 INFO L82 PathProgramCache]: Analyzing trace with hash -844051935, now seen corresponding path program 1 times [2021-03-26 10:41:40,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525208437] [2021-03-26 10:41:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,432 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:41:40,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:41:40,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525208437] [2021-03-26 10:41:40,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:40,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827738336] [2021-03-26 10:41:40,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:40,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:40,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2021-03-26 10:41:40,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 488 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2021-03-26 10:41:40,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,482 INFO L129 PetriNetUnfolder]: 125/328 cut-off events. [2021-03-26 10:41:40,483 INFO L130 PetriNetUnfolder]: For 1311/1398 co-relation queries the response was YES. [2021-03-26 10:41:40,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 328 events. 125/328 cut-off events. For 1311/1398 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2022 event pairs, 28 based on Foata normal form. 35/348 useless extension candidates. Maximal degree in co-relation 1178. Up to 164 conditions per place. [2021-03-26 10:41:40,485 INFO L132 encePairwiseOnDemand]: 108/114 looper letters, 8 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2021-03-26 10:41:40,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 540 flow [2021-03-26 10:41:40,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2021-03-26 10:41:40,486 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7771929824561403 [2021-03-26 10:41:40,486 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2021-03-26 10:41:40,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2021-03-26 10:41:40,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2021-03-26 10:41:40,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,489 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,489 INFO L185 Difference]: Start difference. First operand has 47 places, 45 transitions, 488 flow. Second operand 5 states and 443 transitions. [2021-03-26 10:41:40,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 540 flow [2021-03-26 10:41:40,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 530 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:40,493 INFO L241 Difference]: Finished difference. Result has 53 places, 52 transitions, 538 flow [2021-03-26 10:41:40,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=538, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2021-03-26 10:41:40,493 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 23 predicate places. [2021-03-26 10:41:40,493 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 52 transitions, 538 flow [2021-03-26 10:41:40,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 52 transitions, 538 flow [2021-03-26 10:41:40,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 52 transitions, 538 flow [2021-03-26 10:41:40,514 INFO L129 PetriNetUnfolder]: 126/329 cut-off events. [2021-03-26 10:41:40,514 INFO L130 PetriNetUnfolder]: For 1160/1222 co-relation queries the response was YES. [2021-03-26 10:41:40,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 329 events. 126/329 cut-off events. For 1160/1222 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2034 event pairs, 27 based on Foata normal form. 16/333 useless extension candidates. Maximal degree in co-relation 1357. Up to 184 conditions per place. [2021-03-26 10:41:40,517 INFO L142 LiptonReduction]: Number of co-enabled transitions 368 [2021-03-26 10:41:40,525 INFO L154 LiptonReduction]: Checked pairs total: 34 [2021-03-26 10:41:40,526 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:41:40,526 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 10:41:40,528 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 532 flow [2021-03-26 10:41:40,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,528 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,528 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:41:40,528 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1361662799, now seen corresponding path program 1 times [2021-03-26 10:41:40,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235389549] [2021-03-26 10:41:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:40,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,560 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:41:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:40,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235389549] [2021-03-26 10:41:40,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:40,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956629190] [2021-03-26 10:41:40,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:40,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:40,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:40,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 114 [2021-03-26 10:41:40,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 532 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 114 [2021-03-26 10:41:40,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,608 INFO L129 PetriNetUnfolder]: 135/341 cut-off events. [2021-03-26 10:41:40,608 INFO L130 PetriNetUnfolder]: For 1321/1407 co-relation queries the response was YES. [2021-03-26 10:41:40,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1537 conditions, 341 events. 135/341 cut-off events. For 1321/1407 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2028 event pairs, 40 based on Foata normal form. 24/344 useless extension candidates. Maximal degree in co-relation 1507. Up to 216 conditions per place. [2021-03-26 10:41:40,610 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 14 selfloop transitions, 24 changer transitions 3/53 dead transitions. [2021-03-26 10:41:40,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 660 flow [2021-03-26 10:41:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2021-03-26 10:41:40,611 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8223684210526315 [2021-03-26 10:41:40,611 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2021-03-26 10:41:40,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2021-03-26 10:41:40,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2021-03-26 10:41:40,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,614 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,614 INFO L185 Difference]: Start difference. First operand has 53 places, 51 transitions, 532 flow. Second operand 4 states and 375 transitions. [2021-03-26 10:41:40,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 660 flow [2021-03-26 10:41:40,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 654 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:40,619 INFO L241 Difference]: Finished difference. Result has 55 places, 48 transitions, 622 flow [2021-03-26 10:41:40,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=622, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2021-03-26 10:41:40,620 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 25 predicate places. [2021-03-26 10:41:40,620 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,620 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 48 transitions, 622 flow [2021-03-26 10:41:40,620 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 48 transitions, 622 flow [2021-03-26 10:41:40,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 48 transitions, 622 flow [2021-03-26 10:41:40,642 INFO L129 PetriNetUnfolder]: 130/332 cut-off events. [2021-03-26 10:41:40,642 INFO L130 PetriNetUnfolder]: For 1466/1536 co-relation queries the response was YES. [2021-03-26 10:41:40,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 332 events. 130/332 cut-off events. For 1466/1536 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2041 event pairs, 40 based on Foata normal form. 3/320 useless extension candidates. Maximal degree in co-relation 1449. Up to 212 conditions per place. [2021-03-26 10:41:40,645 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-26 10:41:40,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:41:40,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:40,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 10:41:40,648 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 622 flow [2021-03-26 10:41:40,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:41:40,650 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1137926189, now seen corresponding path program 1 times [2021-03-26 10:41:40,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554615046] [2021-03-26 10:41:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:40,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,682 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:41:40,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554615046] [2021-03-26 10:41:40,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:40,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390321454] [2021-03-26 10:41:40,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:40,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:40,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:40,691 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 114 [2021-03-26 10:41:40,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 622 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 114 [2021-03-26 10:41:40,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,731 INFO L129 PetriNetUnfolder]: 168/415 cut-off events. [2021-03-26 10:41:40,732 INFO L130 PetriNetUnfolder]: For 1762/1884 co-relation queries the response was YES. [2021-03-26 10:41:40,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 415 events. 168/415 cut-off events. For 1762/1884 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 2682 event pairs, 60 based on Foata normal form. 22/403 useless extension candidates. Maximal degree in co-relation 1790. Up to 295 conditions per place. [2021-03-26 10:41:40,734 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 11 selfloop transitions, 23 changer transitions 7/53 dead transitions. [2021-03-26 10:41:40,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 786 flow [2021-03-26 10:41:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2021-03-26 10:41:40,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8223684210526315 [2021-03-26 10:41:40,735 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2021-03-26 10:41:40,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2021-03-26 10:41:40,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2021-03-26 10:41:40,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,738 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,738 INFO L185 Difference]: Start difference. First operand has 55 places, 48 transitions, 622 flow. Second operand 4 states and 375 transitions. [2021-03-26 10:41:40,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 786 flow [2021-03-26 10:41:40,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 53 transitions, 784 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-26 10:41:40,744 INFO L241 Difference]: Finished difference. Result has 59 places, 44 transitions, 609 flow [2021-03-26 10:41:40,744 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2021-03-26 10:41:40,744 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 29 predicate places. [2021-03-26 10:41:40,744 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 44 transitions, 609 flow [2021-03-26 10:41:40,745 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 44 transitions, 609 flow [2021-03-26 10:41:40,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 44 transitions, 609 flow [2021-03-26 10:41:40,802 INFO L129 PetriNetUnfolder]: 161/402 cut-off events. [2021-03-26 10:41:40,802 INFO L130 PetriNetUnfolder]: For 1875/1987 co-relation queries the response was YES. [2021-03-26 10:41:40,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1676 conditions, 402 events. 161/402 cut-off events. For 1875/1987 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 2586 event pairs, 62 based on Foata normal form. 6/377 useless extension candidates. Maximal degree in co-relation 1642. Up to 293 conditions per place. [2021-03-26 10:41:40,806 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-26 10:41:40,809 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:41:40,809 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:40,809 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-26 10:41:40,809 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 609 flow [2021-03-26 10:41:40,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:40,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:41:40,810 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,810 INFO L82 PathProgramCache]: Analyzing trace with hash 994232821, now seen corresponding path program 1 times [2021-03-26 10:41:40,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670000073] [2021-03-26 10:41:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,862 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:41:40,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:41:40,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670000073] [2021-03-26 10:41:40,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:40,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101466928] [2021-03-26 10:41:40,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:41:40,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:41:40,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:41:40,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2021-03-26 10:41:40,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 609 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2021-03-26 10:41:40,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,923 INFO L129 PetriNetUnfolder]: 128/364 cut-off events. [2021-03-26 10:41:40,923 INFO L130 PetriNetUnfolder]: For 1658/1917 co-relation queries the response was YES. [2021-03-26 10:41:40,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1693 conditions, 364 events. 128/364 cut-off events. For 1658/1917 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2493 event pairs, 10 based on Foata normal form. 82/435 useless extension candidates. Maximal degree in co-relation 1657. Up to 281 conditions per place. [2021-03-26 10:41:40,925 INFO L132 encePairwiseOnDemand]: 108/114 looper letters, 5 selfloop transitions, 7 changer transitions 19/54 dead transitions. [2021-03-26 10:41:40,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 705 flow [2021-03-26 10:41:40,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:41:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:41:40,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2021-03-26 10:41:40,927 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7763157894736842 [2021-03-26 10:41:40,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 531 transitions. [2021-03-26 10:41:40,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 531 transitions. [2021-03-26 10:41:40,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 531 transitions. [2021-03-26 10:41:40,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,929 INFO L185 Difference]: Start difference. First operand has 59 places, 44 transitions, 609 flow. Second operand 6 states and 531 transitions. [2021-03-26 10:41:40,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 705 flow [2021-03-26 10:41:40,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 664 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:40,935 INFO L241 Difference]: Finished difference. Result has 65 places, 35 transitions, 498 flow [2021-03-26 10:41:40,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=498, PETRI_PLACES=65, PETRI_TRANSITIONS=35} [2021-03-26 10:41:40,935 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 35 predicate places. [2021-03-26 10:41:40,935 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,935 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 35 transitions, 498 flow [2021-03-26 10:41:40,935 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 35 transitions, 498 flow [2021-03-26 10:41:40,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 35 transitions, 498 flow [2021-03-26 10:41:40,942 INFO L129 PetriNetUnfolder]: 24/90 cut-off events. [2021-03-26 10:41:40,942 INFO L130 PetriNetUnfolder]: For 555/632 co-relation queries the response was YES. [2021-03-26 10:41:40,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 90 events. 24/90 cut-off events. For 555/632 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 338 event pairs, 3 based on Foata normal form. 6/93 useless extension candidates. Maximal degree in co-relation 505. Up to 61 conditions per place. [2021-03-26 10:41:40,943 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-26 10:41:40,999 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-26 10:41:40,999 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:41:40,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 10:41:41,000 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 34 transitions, 496 flow [2021-03-26 10:41:41,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:41,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:41,000 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:41,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:41:41,000 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash 444466006, now seen corresponding path program 1 times [2021-03-26 10:41:41,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:41,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946277334] [2021-03-26 10:41:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:41,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:41,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:41,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:41,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:41,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:41,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:41,042 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:41:41,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:41:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:41,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946277334] [2021-03-26 10:41:41,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:41,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:41:41,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685183682] [2021-03-26 10:41:41,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:41:41,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:41,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:41:41,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:41:41,048 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 115 [2021-03-26 10:41:41,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 34 transitions, 496 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:41,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:41,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 115 [2021-03-26 10:41:41,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:41,066 INFO L129 PetriNetUnfolder]: 15/60 cut-off events. [2021-03-26 10:41:41,066 INFO L130 PetriNetUnfolder]: For 498/649 co-relation queries the response was YES. [2021-03-26 10:41:41,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 60 events. 15/60 cut-off events. For 498/649 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 190 event pairs, 0 based on Foata normal form. 39/96 useless extension candidates. Maximal degree in co-relation 397. Up to 37 conditions per place. [2021-03-26 10:41:41,067 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2021-03-26 10:41:41,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 33 transitions, 490 flow [2021-03-26 10:41:41,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 436 transitions. [2021-03-26 10:41:41,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7582608695652174 [2021-03-26 10:41:41,068 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 436 transitions. [2021-03-26 10:41:41,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 436 transitions. [2021-03-26 10:41:41,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:41,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 436 transitions. [2021-03-26 10:41:41,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:41,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:41,070 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:41,070 INFO L185 Difference]: Start difference. First operand has 62 places, 34 transitions, 496 flow. Second operand 5 states and 436 transitions. [2021-03-26 10:41:41,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 33 transitions, 490 flow [2021-03-26 10:41:41,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 33 transitions, 355 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-03-26 10:41:41,072 INFO L241 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2021-03-26 10:41:41,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2021-03-26 10:41:41,073 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2021-03-26 10:41:41,073 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:41,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 0 transitions, 0 flow [2021-03-26 10:41:41,073 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 0 transitions, 0 flow [2021-03-26 10:41:41,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:41:41,074 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:41:41,074 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:41,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:41:41,074 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:41:41,074 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:41:41,074 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:41,074 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:41:41,074 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:41:41,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:41,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:41:41,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:41:41 BasicIcfg [2021-03-26 10:41:41,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:41:41,078 INFO L168 Benchmark]: Toolchain (without parser) took 4467.78 ms. Allocated memory was 255.9 MB in the beginning and 425.7 MB in the end (delta: 169.9 MB). Free memory was 234.7 MB in the beginning and 313.8 MB in the end (delta: -79.1 MB). Peak memory consumption was 90.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:41,078 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:41:41,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.01 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 234.3 MB in the beginning and 317.0 MB in the end (delta: -82.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:41,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.31 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 315.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:41,078 INFO L168 Benchmark]: Boogie Preprocessor took 12.89 ms. Allocated memory is still 354.4 MB. Free memory was 315.3 MB in the beginning and 313.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:41,078 INFO L168 Benchmark]: RCFGBuilder took 318.97 ms. Allocated memory is still 354.4 MB. Free memory was 313.8 MB in the beginning and 292.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:41,079 INFO L168 Benchmark]: TraceAbstraction took 3686.95 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 291.8 MB in the beginning and 313.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:41,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 405.01 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 234.3 MB in the beginning and 317.0 MB in the end (delta: -82.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 40.31 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 315.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.89 ms. Allocated memory is still 354.4 MB. Free memory was 315.3 MB in the beginning and 313.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 318.97 ms. Allocated memory is still 354.4 MB. Free memory was 313.8 MB in the beginning and 292.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3686.95 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 291.8 MB in the beginning and 313.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1402.7ms, 67 PlacesBefore, 30 PlacesAfterwards, 58 TransitionsBefore, 20 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 1207 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 760, positive: 718, positive conditional: 718, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 760, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 760, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 628, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 628, positive: 586, positive conditional: 0, positive unconditional: 586, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 760, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 628, unknown conditional: 0, unknown unconditional: 628] , Statistics on independence cache: Total cache size (in pairs): 628, Positive cache size: 598, Positive conditional cache size: 0, Positive unconditional cache size: 598, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 649.8ms, 31 PlacesBefore, 28 PlacesAfterwards, 26 TransitionsBefore, 23 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, positive: 157, positive conditional: 157, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 170, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 48, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 170, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 48, unknown conditional: 0, unknown unconditional: 48] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.4ms, 32 PlacesBefore, 32 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 80 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, positive: 71, positive conditional: 71, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.2ms, 38 PlacesBefore, 38 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 100 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 100, positive: 94, positive conditional: 94, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 100, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 100, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 32 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4ms, 44 PlacesBefore, 44 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 166 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 166, positive: 157, positive conditional: 157, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 166, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 166, positive: 157, positive conditional: 0, positive unconditional: 157, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 63 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 47 PlacesBefore, 47 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138, positive: 130, positive conditional: 130, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 138, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 138, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 138, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 56 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.8ms, 53 PlacesBefore, 53 PlacesAfterwards, 52 TransitionsBefore, 51 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, positive: 34, positive conditional: 20, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 20, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 34, positive conditional: 20, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.0ms, 55 PlacesBefore, 55 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.9ms, 59 PlacesBefore, 59 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.8ms, 65 PlacesBefore, 62 PlacesAfterwards, 35 TransitionsBefore, 34 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4ms, 51 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 676, Positive cache size: 642, Positive conditional cache size: 0, Positive unconditional cache size: 642, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3602.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 497.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1474.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 83 SDtfs, 23 SDslu, 40 SDs, 0 SdLazy, 116 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 78.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=622occurred in iteration=7, InterpolantAutomatonStates: 42, 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: 16.1ms SsaConstructionTime, 143.3ms SatisfiabilityAnalysisTime, 399.7ms InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...