/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 15:00:28,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 15:00:28,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 15:00:28,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 15:00:28,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 15:00:28,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 15:00:28,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 15:00:28,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 15:00:28,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 15:00:28,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 15:00:28,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 15:00:28,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 15:00:28,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 15:00:28,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 15:00:28,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 15:00:28,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 15:00:28,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 15:00:28,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 15:00:28,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 15:00:28,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 15:00:28,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 15:00:28,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 15:00:28,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 15:00:28,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 15:00:28,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 15:00:28,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 15:00:28,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 15:00:28,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 15:00:28,563 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-RepeatedSemanticLbe.epf [2021-03-25 15:00:28,583 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 15:00:28,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 15:00:28,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 15:00:28,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 15:00:28,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 15:00:28,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:00:28,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 15:00:28,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 15:00:28,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 15:00:28,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 15:00:28,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 15:00:28,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 15:00:28,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 15:00:28,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 15:00:28,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 15:00:28,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 15:00:28,808 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 15:00:28,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-03-25 15:00:28,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570299ad3/63cca63de76348eb8018f62b9a6a2db9/FLAG4ec1ffc38 [2021-03-25 15:00:29,288 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 15:00:29,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-03-25 15:00:29,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570299ad3/63cca63de76348eb8018f62b9a6a2db9/FLAG4ec1ffc38 [2021-03-25 15:00:29,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570299ad3/63cca63de76348eb8018f62b9a6a2db9 [2021-03-25 15:00:29,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 15:00:29,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 15:00:29,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 15:00:29,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 15:00:29,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 15:00:29,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:00:29" (1/1) ... [2021-03-25 15:00:29,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7ab30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:29, skipping insertion in model container [2021-03-25 15:00:29,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:00:29" (1/1) ... [2021-03-25 15:00:29,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 15:00:29,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 15:00:29,806 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/safe026_tso.oepc.i[950,963] [2021-03-25 15:00:29,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:00:29,943 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 15:00:29,950 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/safe026_tso.oepc.i[950,963] [2021-03-25 15:00:29,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 15:00:30,027 INFO L208 MainTranslator]: Completed translation [2021-03-25 15:00:30,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30 WrapperNode [2021-03-25 15:00:30,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 15:00:30,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 15:00:30,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 15:00:30,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 15:00:30,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 15:00:30,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 15:00:30,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 15:00:30,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 15:00:30,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... [2021-03-25 15:00:30,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 15:00:30,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 15:00:30,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 15:00:30,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 15:00:30,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 15:00:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 15:00:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 15:00:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 15:00:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 15:00:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 15:00:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 15:00:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 15:00:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 15:00:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 15:00:30,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 15:00:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 15:00:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 15:00:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 15:00:30,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 15:00:30,184 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 15:00:30,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 15:00:30,453 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 15:00:30,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:00:30 BoogieIcfgContainer [2021-03-25 15:00:30,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 15:00:30,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 15:00:30,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 15:00:30,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 15:00:30,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 03:00:29" (1/3) ... [2021-03-25 15:00:30,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e03c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:00:30, skipping insertion in model container [2021-03-25 15:00:30,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:00:30" (2/3) ... [2021-03-25 15:00:30,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e03c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:00:30, skipping insertion in model container [2021-03-25 15:00:30,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:00:30" (3/3) ... [2021-03-25 15:00:30,459 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2021-03-25 15:00:30,462 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 15:00:30,465 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 15:00:30,465 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 15:00:30,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,484 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,490 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,490 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 15:00:30,493 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 15:00:30,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 15:00:30,525 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 15:00:30,525 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 15:00:30,525 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 15:00:30,525 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 15:00:30,525 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 15:00:30,526 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 15:00:30,526 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 15:00:30,526 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 15:00:30,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-03-25 15:00:30,554 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-25 15:00:30,554 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:30,557 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 51 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-03-25 15:00:30,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-03-25 15:00:30,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-03-25 15:00:30,560 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:30,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-25 15:00:30,573 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-03-25 15:00:30,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-03-25 15:00:30,597 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-03-25 15:00:30,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:30,598 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 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-03-25 15:00:30,601 INFO L142 LiptonReduction]: Number of co-enabled transitions 804 [2021-03-25 15:00:31,723 INFO L154 LiptonReduction]: Checked pairs total: 784 [2021-03-25 15:00:31,725 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-25 15:00:31,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1167 [2021-03-25 15:00:31,733 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-25 15:00:31,733 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:31,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:31,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:31,733 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:31,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1769401119, now seen corresponding path program 1 times [2021-03-25 15:00:31,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:31,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68446867] [2021-03-25 15:00:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:31,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:31,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:31,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:31,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:31,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68446867] [2021-03-25 15:00:31,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:31,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:00:31,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376432914] [2021-03-25 15:00:31,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:00:31,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:31,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:00:31,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:00:31,918 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 110 [2021-03-25 15:00:31,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:31,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:31,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 110 [2021-03-25 15:00:31,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:31,936 INFO L129 PetriNetUnfolder]: 12/55 cut-off events. [2021-03-25 15:00:31,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:31,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 55 events. 12/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 149 event pairs, 6 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 79. Up to 25 conditions per place. [2021-03-25 15:00:31,937 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 5 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-25 15:00:31,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 73 flow [2021-03-25 15:00:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:00:31,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:00:31,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2021-03-25 15:00:31,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8909090909090909 [2021-03-25 15:00:31,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2021-03-25 15:00:31,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2021-03-25 15:00:31,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:31,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2021-03-25 15:00:31,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:31,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:31,954 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:31,955 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 3 states and 294 transitions. [2021-03-25 15:00:31,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 73 flow [2021-03-25 15:00:31,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 15:00:31,958 INFO L241 Difference]: Finished difference. Result has 31 places, 23 transitions, 67 flow [2021-03-25 15:00:31,959 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2021-03-25 15:00:31,959 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2021-03-25 15:00:31,959 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:31,959 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 23 transitions, 67 flow [2021-03-25 15:00:31,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 23 transitions, 67 flow [2021-03-25 15:00:31,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 67 flow [2021-03-25 15:00:31,963 INFO L129 PetriNetUnfolder]: 3/29 cut-off events. [2021-03-25 15:00:31,963 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 15:00:31,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 29 events. 3/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 39. Up to 10 conditions per place. [2021-03-25 15:00:31,964 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-25 15:00:32,395 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 15:00:32,599 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 15:00:32,662 INFO L154 LiptonReduction]: Checked pairs total: 285 [2021-03-25 15:00:32,662 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 15:00:32,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 704 [2021-03-25 15:00:32,664 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2021-03-25 15:00:32,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:32,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:32,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 15:00:32,665 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:32,666 INFO L82 PathProgramCache]: Analyzing trace with hash -983140600, now seen corresponding path program 1 times [2021-03-25 15:00:32,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:32,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304858238] [2021-03-25 15:00:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:32,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:32,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:32,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:32,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:32,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304858238] [2021-03-25 15:00:32,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:32,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:00:32,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238234625] [2021-03-25 15:00:32,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 15:00:32,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:32,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 15:00:32,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 15:00:32,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 115 [2021-03-25 15:00:32,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:32,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 115 [2021-03-25 15:00:32,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:32,724 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-25 15:00:32,724 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 15:00:32,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 24 events. 3/24 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 1 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 41. Up to 10 conditions per place. [2021-03-25 15:00:32,725 INFO L132 encePairwiseOnDemand]: 112/115 looper letters, 1 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2021-03-25 15:00:32,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 63 flow [2021-03-25 15:00:32,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 15:00:32,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 15:00:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-25 15:00:32,726 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.881159420289855 [2021-03-25 15:00:32,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-25 15:00:32,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-25 15:00:32,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:32,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-25 15:00:32,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,730 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 3 states and 304 transitions. [2021-03-25 15:00:32,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 63 flow [2021-03-25 15:00:32,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 15:00:32,731 INFO L241 Difference]: Finished difference. Result has 28 places, 18 transitions, 62 flow [2021-03-25 15:00:32,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2021-03-25 15:00:32,731 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2021-03-25 15:00:32,731 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:32,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 18 transitions, 62 flow [2021-03-25 15:00:32,732 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 18 transitions, 62 flow [2021-03-25 15:00:32,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 18 transitions, 62 flow [2021-03-25 15:00:32,734 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-25 15:00:32,734 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 15:00:32,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 1 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-03-25 15:00:32,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-25 15:00:32,738 INFO L154 LiptonReduction]: Checked pairs total: 71 [2021-03-25 15:00:32,738 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:32,738 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 15:00:32,739 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 62 flow [2021-03-25 15:00:32,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,739 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:32,739 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:32,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 15:00:32,740 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:32,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:32,740 INFO L82 PathProgramCache]: Analyzing trace with hash 2137410326, now seen corresponding path program 1 times [2021-03-25 15:00:32,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:32,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708306470] [2021-03-25 15:00:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:32,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:32,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:32,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:32,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:32,781 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 15:00:32,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:00:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:32,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708306470] [2021-03-25 15:00:32,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:32,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:32,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898323059] [2021-03-25 15:00:32,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:00:32,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:32,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:00:32,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:00:32,789 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2021-03-25 15:00:32,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:32,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2021-03-25 15:00:32,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:32,816 INFO L129 PetriNetUnfolder]: 15/67 cut-off events. [2021-03-25 15:00:32,816 INFO L130 PetriNetUnfolder]: For 35/37 co-relation queries the response was YES. [2021-03-25 15:00:32,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 67 events. 15/67 cut-off events. For 35/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 253 event pairs, 3 based on Foata normal form. 10/76 useless extension candidates. Maximal degree in co-relation 151. Up to 27 conditions per place. [2021-03-25 15:00:32,817 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 6 changer transitions 3/24 dead transitions. [2021-03-25 15:00:32,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 109 flow [2021-03-25 15:00:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:00:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:00:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-25 15:00:32,819 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8191304347826087 [2021-03-25 15:00:32,819 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-25 15:00:32,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-25 15:00:32,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:32,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-25 15:00:32,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,821 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) [2021-03-25 15:00:32,822 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) [2021-03-25 15:00:32,822 INFO L185 Difference]: Start difference. First operand has 28 places, 18 transitions, 62 flow. Second operand 5 states and 471 transitions. [2021-03-25 15:00:32,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 109 flow [2021-03-25 15:00:32,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 15:00:32,823 INFO L241 Difference]: Finished difference. Result has 33 places, 20 transitions, 93 flow [2021-03-25 15:00:32,823 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2021-03-25 15:00:32,823 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2021-03-25 15:00:32,823 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:32,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 20 transitions, 93 flow [2021-03-25 15:00:32,823 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 20 transitions, 93 flow [2021-03-25 15:00:32,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 20 transitions, 93 flow [2021-03-25 15:00:32,827 INFO L129 PetriNetUnfolder]: 7/47 cut-off events. [2021-03-25 15:00:32,827 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-03-25 15:00:32,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 47 events. 7/47 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 145 event pairs, 3 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 112. Up to 16 conditions per place. [2021-03-25 15:00:32,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-25 15:00:32,829 INFO L154 LiptonReduction]: Checked pairs total: 77 [2021-03-25 15:00:32,829 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:32,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 15:00:32,829 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 93 flow [2021-03-25 15:00:32,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:32,830 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:32,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 15:00:32,830 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:32,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:32,830 INFO L82 PathProgramCache]: Analyzing trace with hash 2138332886, now seen corresponding path program 2 times [2021-03-25 15:00:32,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:32,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067686770] [2021-03-25 15:00:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:32,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:32,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:32,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:32,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067686770] [2021-03-25 15:00:32,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:32,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 15:00:32,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068218123] [2021-03-25 15:00:32,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:32,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:32,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:32,887 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-25 15:00:32,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:32,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-25 15:00:32,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:32,929 INFO L129 PetriNetUnfolder]: 87/185 cut-off events. [2021-03-25 15:00:32,930 INFO L130 PetriNetUnfolder]: For 570/620 co-relation queries the response was YES. [2021-03-25 15:00:32,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 185 events. 87/185 cut-off events. For 570/620 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 865 event pairs, 31 based on Foata normal form. 29/197 useless extension candidates. Maximal degree in co-relation 478. Up to 121 conditions per place. [2021-03-25 15:00:32,932 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 6 changer transitions 5/30 dead transitions. [2021-03-25 15:00:32,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 145 flow [2021-03-25 15:00:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:00:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:00:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-03-25 15:00:32,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7878260869565218 [2021-03-25 15:00:32,934 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-03-25 15:00:32,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-03-25 15:00:32,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:32,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-03-25 15:00:32,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,937 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) [2021-03-25 15:00:32,937 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) [2021-03-25 15:00:32,937 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 93 flow. Second operand 5 states and 453 transitions. [2021-03-25 15:00:32,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 145 flow [2021-03-25 15:00:32,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 137 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 15:00:32,940 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 131 flow [2021-03-25 15:00:32,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-03-25 15:00:32,940 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-25 15:00:32,940 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:32,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 131 flow [2021-03-25 15:00:32,940 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 131 flow [2021-03-25 15:00:32,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 131 flow [2021-03-25 15:00:32,954 INFO L129 PetriNetUnfolder]: 62/151 cut-off events. [2021-03-25 15:00:32,956 INFO L130 PetriNetUnfolder]: For 349/390 co-relation queries the response was YES. [2021-03-25 15:00:32,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 151 events. 62/151 cut-off events. For 349/390 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 716 event pairs, 32 based on Foata normal form. 3/133 useless extension candidates. Maximal degree in co-relation 477. Up to 86 conditions per place. [2021-03-25 15:00:32,959 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-25 15:00:32,961 INFO L154 LiptonReduction]: Checked pairs total: 45 [2021-03-25 15:00:32,961 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:32,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 15:00:32,964 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 131 flow [2021-03-25 15:00:32,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:32,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:32,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:32,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 15:00:32,964 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:32,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:32,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1586005307, now seen corresponding path program 1 times [2021-03-25 15:00:32,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:32,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296698605] [2021-03-25 15:00:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:33,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:33,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,015 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 15:00:33,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 15:00:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:33,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296698605] [2021-03-25 15:00:33,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:33,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:33,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971337751] [2021-03-25 15:00:33,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:33,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:33,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:33,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:33,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 115 [2021-03-25 15:00:33,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 131 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) [2021-03-25 15:00:33,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:33,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 115 [2021-03-25 15:00:33,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:33,053 INFO L129 PetriNetUnfolder]: 57/189 cut-off events. [2021-03-25 15:00:33,053 INFO L130 PetriNetUnfolder]: For 640/716 co-relation queries the response was YES. [2021-03-25 15:00:33,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 189 events. 57/189 cut-off events. For 640/716 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1107 event pairs, 27 based on Foata normal form. 19/191 useless extension candidates. Maximal degree in co-relation 621. Up to 110 conditions per place. [2021-03-25 15:00:33,054 INFO L132 encePairwiseOnDemand]: 108/115 looper letters, 9 selfloop transitions, 10 changer transitions 0/33 dead transitions. [2021-03-25 15:00:33,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 216 flow [2021-03-25 15:00:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 15:00:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 15:00:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2021-03-25 15:00:33,056 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7947826086956522 [2021-03-25 15:00:33,056 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2021-03-25 15:00:33,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2021-03-25 15:00:33,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:33,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2021-03-25 15:00:33,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,058 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) [2021-03-25 15:00:33,058 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) [2021-03-25 15:00:33,058 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 131 flow. Second operand 5 states and 457 transitions. [2021-03-25 15:00:33,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 216 flow [2021-03-25 15:00:33,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 15:00:33,062 INFO L241 Difference]: Finished difference. Result has 44 places, 31 transitions, 204 flow [2021-03-25 15:00:33,062 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2021-03-25 15:00:33,062 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-25 15:00:33,062 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:33,062 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 31 transitions, 204 flow [2021-03-25 15:00:33,063 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 31 transitions, 204 flow [2021-03-25 15:00:33,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 31 transitions, 204 flow [2021-03-25 15:00:33,075 INFO L129 PetriNetUnfolder]: 60/185 cut-off events. [2021-03-25 15:00:33,075 INFO L130 PetriNetUnfolder]: For 403/452 co-relation queries the response was YES. [2021-03-25 15:00:33,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 185 events. 60/185 cut-off events. For 403/452 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1055 event pairs, 35 based on Foata normal form. 9/179 useless extension candidates. Maximal degree in co-relation 610. Up to 116 conditions per place. [2021-03-25 15:00:33,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-25 15:00:33,078 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 15:00:33,078 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:33,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 15:00:33,079 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 204 flow [2021-03-25 15:00:33,080 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) [2021-03-25 15:00:33,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:33,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:33,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 15:00:33,080 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:33,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1177565061, now seen corresponding path program 1 times [2021-03-25 15:00:33,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:33,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233698373] [2021-03-25 15:00:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:33,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,132 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 15:00:33,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 15:00:33,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:33,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233698373] [2021-03-25 15:00:33,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:33,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:33,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401583898] [2021-03-25 15:00:33,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 15:00:33,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:33,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 15:00:33,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 15:00:33,141 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-25 15:00:33,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:33,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-25 15:00:33,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:33,201 INFO L129 PetriNetUnfolder]: 56/176 cut-off events. [2021-03-25 15:00:33,201 INFO L130 PetriNetUnfolder]: For 686/902 co-relation queries the response was YES. [2021-03-25 15:00:33,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 176 events. 56/176 cut-off events. For 686/902 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 975 event pairs, 4 based on Foata normal form. 80/244 useless extension candidates. Maximal degree in co-relation 658. Up to 108 conditions per place. [2021-03-25 15:00:33,202 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 5 selfloop transitions, 12 changer transitions 5/41 dead transitions. [2021-03-25 15:00:33,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 41 transitions, 298 flow [2021-03-25 15:00:33,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 15:00:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 15:00:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 632 transitions. [2021-03-25 15:00:33,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7850931677018633 [2021-03-25 15:00:33,204 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 632 transitions. [2021-03-25 15:00:33,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 632 transitions. [2021-03-25 15:00:33,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:33,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 632 transitions. [2021-03-25 15:00:33,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,206 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,207 INFO L185 Difference]: Start difference. First operand has 44 places, 31 transitions, 204 flow. Second operand 7 states and 632 transitions. [2021-03-25 15:00:33,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 41 transitions, 298 flow [2021-03-25 15:00:33,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 15:00:33,210 INFO L241 Difference]: Finished difference. Result has 53 places, 36 transitions, 275 flow [2021-03-25 15:00:33,210 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=275, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2021-03-25 15:00:33,210 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2021-03-25 15:00:33,210 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:33,210 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 36 transitions, 275 flow [2021-03-25 15:00:33,210 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 36 transitions, 275 flow [2021-03-25 15:00:33,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 36 transitions, 275 flow [2021-03-25 15:00:33,219 INFO L129 PetriNetUnfolder]: 35/147 cut-off events. [2021-03-25 15:00:33,219 INFO L130 PetriNetUnfolder]: For 648/762 co-relation queries the response was YES. [2021-03-25 15:00:33,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 147 events. 35/147 cut-off events. For 648/762 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 860 event pairs, 4 based on Foata normal form. 10/150 useless extension candidates. Maximal degree in co-relation 626. Up to 89 conditions per place. [2021-03-25 15:00:33,221 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-25 15:00:33,223 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 15:00:33,223 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:33,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 15:00:33,224 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 275 flow [2021-03-25 15:00:33,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:33,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:33,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 15:00:33,225 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:33,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2065085374, now seen corresponding path program 1 times [2021-03-25 15:00:33,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:33,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212811270] [2021-03-25 15:00:33,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:33,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,268 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 15:00:33,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 15:00:33,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:33,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212811270] [2021-03-25 15:00:33,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:33,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 15:00:33,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635613823] [2021-03-25 15:00:33,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 15:00:33,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:33,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 15:00:33,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 15:00:33,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 115 [2021-03-25 15:00:33,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:33,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 115 [2021-03-25 15:00:33,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:33,342 INFO L129 PetriNetUnfolder]: 33/143 cut-off events. [2021-03-25 15:00:33,342 INFO L130 PetriNetUnfolder]: For 929/1205 co-relation queries the response was YES. [2021-03-25 15:00:33,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 143 events. 33/143 cut-off events. For 929/1205 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 830 event pairs, 0 based on Foata normal form. 107/242 useless extension candidates. Maximal degree in co-relation 693. Up to 87 conditions per place. [2021-03-25 15:00:33,343 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 2 selfloop transitions, 10 changer transitions 18/40 dead transitions. [2021-03-25 15:00:33,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 40 transitions, 347 flow [2021-03-25 15:00:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 15:00:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 15:00:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 806 transitions. [2021-03-25 15:00:33,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.778743961352657 [2021-03-25 15:00:33,345 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 806 transitions. [2021-03-25 15:00:33,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 806 transitions. [2021-03-25 15:00:33,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:33,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 806 transitions. [2021-03-25 15:00:33,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.55555555555556) internal successors, (806), 9 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,348 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,348 INFO L185 Difference]: Start difference. First operand has 53 places, 36 transitions, 275 flow. Second operand 9 states and 806 transitions. [2021-03-25 15:00:33,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 40 transitions, 347 flow [2021-03-25 15:00:33,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 40 transitions, 320 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-25 15:00:33,351 INFO L241 Difference]: Finished difference. Result has 62 places, 22 transitions, 179 flow [2021-03-25 15:00:33,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=179, PETRI_PLACES=62, PETRI_TRANSITIONS=22} [2021-03-25 15:00:33,351 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 31 predicate places. [2021-03-25 15:00:33,351 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:33,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 22 transitions, 179 flow [2021-03-25 15:00:33,352 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 22 transitions, 179 flow [2021-03-25 15:00:33,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 22 transitions, 179 flow [2021-03-25 15:00:33,356 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-25 15:00:33,356 INFO L130 PetriNetUnfolder]: For 93/94 co-relation queries the response was YES. [2021-03-25 15:00:33,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 29 events. 6/29 cut-off events. For 93/94 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 114. Up to 11 conditions per place. [2021-03-25 15:00:33,357 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-25 15:00:33,613 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-25 15:00:33,613 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 15:00:33,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 15:00:33,614 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 19 transitions, 197 flow [2021-03-25 15:00:33,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 15:00:33,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 15:00:33,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 15:00:33,615 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 15:00:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 15:00:33,615 INFO L82 PathProgramCache]: Analyzing trace with hash 299252431, now seen corresponding path program 1 times [2021-03-25 15:00:33,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 15:00:33,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012361032] [2021-03-25 15:00:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 15:00:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 15:00:33,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 15:00:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 15:00:33,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 15:00:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 15:00:33,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012361032] [2021-03-25 15:00:33,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 15:00:33,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 15:00:33,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917511031] [2021-03-25 15:00:33,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 15:00:33,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 15:00:33,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 15:00:33,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 15:00:33,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 122 [2021-03-25 15:00:33,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 19 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 15:00:33,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 122 [2021-03-25 15:00:33,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 15:00:33,682 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-25 15:00:33,682 INFO L130 PetriNetUnfolder]: For 239/255 co-relation queries the response was YES. [2021-03-25 15:00:33,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 29 events. 6/29 cut-off events. For 239/255 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 3/30 useless extension candidates. Maximal degree in co-relation 145. Up to 11 conditions per place. [2021-03-25 15:00:33,683 INFO L132 encePairwiseOnDemand]: 117/122 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-25 15:00:33,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 18 transitions, 179 flow [2021-03-25 15:00:33,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 15:00:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 15:00:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2021-03-25 15:00:33,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8155737704918032 [2021-03-25 15:00:33,684 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2021-03-25 15:00:33,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2021-03-25 15:00:33,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 15:00:33,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2021-03-25 15:00:33,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,686 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,686 INFO L185 Difference]: Start difference. First operand has 50 places, 19 transitions, 197 flow. Second operand 4 states and 398 transitions. [2021-03-25 15:00:33,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 18 transitions, 179 flow [2021-03-25 15:00:33,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 18 transitions, 84 flow, removed 15 selfloop flow, removed 20 redundant places. [2021-03-25 15:00:33,687 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-25 15:00:33,687 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-25 15:00:33,687 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-25 15:00:33,687 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 15:00:33,687 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-25 15:00:33,687 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-25 15:00:33,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 15:00:33,687 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 15:00:33,688 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 15:00:33,688 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. [2021-03-25 15:00:33,688 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 15:00:33,688 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 15:00:33,688 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 15:00:33,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 15:00:33,690 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 15:00:33,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 15:00:33,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 15:00:33,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 03:00:33 BasicIcfg [2021-03-25 15:00:33,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 15:00:33,694 INFO L168 Benchmark]: Toolchain (without parser) took 4074.00 ms. Allocated memory was 390.1 MB in the beginning and 503.3 MB in the end (delta: 113.2 MB). Free memory was 353.5 MB in the beginning and 441.9 MB in the end (delta: -88.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:33,694 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 390.1 MB. Free memory was 371.7 MB in the beginning and 371.7 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 15:00:33,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.01 ms. Allocated memory is still 390.1 MB. Free memory was 353.3 MB in the beginning and 351.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:33,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.13 ms. Allocated memory is still 390.1 MB. Free memory was 351.2 MB in the beginning and 350.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 15:00:33,695 INFO L168 Benchmark]: Boogie Preprocessor took 25.47 ms. Allocated memory is still 390.1 MB. Free memory was 350.2 MB in the beginning and 348.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:33,695 INFO L168 Benchmark]: RCFGBuilder took 355.69 ms. Allocated memory is still 390.1 MB. Free memory was 348.1 MB in the beginning and 324.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-25 15:00:33,695 INFO L168 Benchmark]: TraceAbstraction took 3238.07 ms. Allocated memory was 390.1 MB in the beginning and 503.3 MB in the end (delta: 113.2 MB). Free memory was 324.0 MB in the beginning and 441.9 MB in the end (delta: -118.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 15:00:33,696 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 390.1 MB. Free memory was 371.7 MB in the beginning and 371.7 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 400.01 ms. Allocated memory is still 390.1 MB. Free memory was 353.3 MB in the beginning and 351.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 43.13 ms. Allocated memory is still 390.1 MB. Free memory was 351.2 MB in the beginning and 350.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.47 ms. Allocated memory is still 390.1 MB. Free memory was 350.2 MB in the beginning and 348.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 355.69 ms. Allocated memory is still 390.1 MB. Free memory was 348.1 MB in the beginning and 324.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3238.07 ms. Allocated memory was 390.1 MB in the beginning and 503.3 MB in the end (delta: 113.2 MB). Free memory was 324.0 MB in the beginning and 441.9 MB in the end (delta: -118.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1152.1ms, 67 PlacesBefore, 31 PlacesAfterwards, 58 TransitionsBefore, 21 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 784 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 618, positive: 594, positive conditional: 0, positive unconditional: 594, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 506, positive: 488, positive conditional: 0, positive unconditional: 488, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 506, positive: 488, positive conditional: 0, positive unconditional: 488, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 506, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 618, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 506, unknown conditional: 0, unknown unconditional: 506] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 702.8ms, 31 PlacesBefore, 26 PlacesAfterwards, 23 TransitionsBefore, 18 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 285 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 144, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7ms, 28 PlacesBefore, 28 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 71 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4ms, 33 PlacesBefore, 33 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 77 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: 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: 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: 50, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9ms, 38 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: 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: 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: 36, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.8ms, 44 PlacesBefore, 44 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: 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: 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): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4ms, 53 PlacesBefore, 53 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: 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: 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): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.6ms, 62 PlacesBefore, 50 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 4 FixpointIterations, 2 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 24, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 32 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: 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: 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: 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): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 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: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3169.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 358.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1204.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 118 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 82.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=6, InterpolantAutomatonStates: 41, 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: 16.5ms SsaConstructionTime, 117.5ms SatisfiabilityAnalysisTime, 291.9ms InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...