/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:14:40,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:14:40,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:14:40,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:14:40,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:14:40,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:14:40,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:14:40,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:14:40,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:14:40,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:14:40,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:14:40,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:14:40,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:14:40,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:14:40,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:14:40,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:14:40,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:14:40,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:14:40,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:14:40,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:14:40,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:14:40,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:14:40,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:14:40,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:14:40,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:14:40,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:14:40,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:14:40,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:14:40,571 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:14:40,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:14:40,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:14:40,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:14:40,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:14:40,625 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:14:40,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:14:40,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:14:40,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:14:40,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:14:40,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:14:40,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:14:40,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:14:40,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:14:40,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:14:40,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:14:40,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:14:40,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:14:40,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:14:40,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:14:40,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:14:40,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:14:40,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:14:40,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:14:40,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:14:40,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:14:40,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:14:40,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:14:40,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:14:40,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:14:40,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:14:40,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:14:41,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:14:41,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:14:41,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:14:41,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:14:41,114 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:14:41,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2021-04-29 00:14:41,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dcdc6113/f9dd4a4049df47ea8c8fa887f4c9c793/FLAG6437ba3ca [2021-04-29 00:14:42,042 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:14:42,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2021-04-29 00:14:42,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dcdc6113/f9dd4a4049df47ea8c8fa887f4c9c793/FLAG6437ba3ca [2021-04-29 00:14:42,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dcdc6113/f9dd4a4049df47ea8c8fa887f4c9c793 [2021-04-29 00:14:42,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:14:42,336 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:14:42,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:14:42,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:14:42,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:14:42,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:14:42" (1/1) ... [2021-04-29 00:14:42,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a61ccbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:42, skipping insertion in model container [2021-04-29 00:14:42,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:14:42" (1/1) ... [2021-04-29 00:14:42,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:14:42,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:14:42,568 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/safe020_pso.opt.i[949,962] [2021-04-29 00:14:42,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:14:42,908 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:14:42,926 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/safe020_pso.opt.i[949,962] [2021-04-29 00:14:43,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:14:43,171 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:14:43,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43 WrapperNode [2021-04-29 00:14:43,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:14:43,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:14:43,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:14:43,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:14:43,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:14:43,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:14:43,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:14:43,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:14:43,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (1/1) ... [2021-04-29 00:14:43,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:14:43,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:14:43,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:14:43,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:14:43,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (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 [2021-04-29 00:14:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:14:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:14:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:14:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:14:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:14:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:14:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:14:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:14:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:14:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:14:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:14:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:14:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:14:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:14:43,468 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:14:43,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:14:43,953 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:14:43,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:14:43 BoogieIcfgContainer [2021-04-29 00:14:43,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:14:43,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:14:43,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:14:43,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:14:43,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:14:42" (1/3) ... [2021-04-29 00:14:43,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c779179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:14:43, skipping insertion in model container [2021-04-29 00:14:43,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:14:43" (2/3) ... [2021-04-29 00:14:43,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c779179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:14:43, skipping insertion in model container [2021-04-29 00:14:43,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:14:43" (3/3) ... [2021-04-29 00:14:43,966 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2021-04-29 00:14:43,974 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:14:43,979 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:14:43,981 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:14:44,020 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,021 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,021 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,022 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,022 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,025 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,025 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,028 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,028 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,043 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:14:44,046 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:14:44,074 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:14:44,113 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:14:44,114 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:14:44,114 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:14:44,115 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:14:44,115 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:14:44,115 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:14:44,115 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:14:44,115 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:14:44,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:14:44,210 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-04-29 00:14:44,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:14:44,219 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 47 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. [2021-04-29 00:14:44,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:14:44,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-04-29 00:14:44,235 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:44,252 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:14:44,255 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:14:44,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-04-29 00:14:44,281 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:14:44,281 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:14:44,282 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. [2021-04-29 00:14:44,285 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:14:48,763 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:14:48,907 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:14:49,327 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:14:49,503 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:14:49,804 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:14:49,962 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:14:50,472 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:14:50,657 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:14:50,842 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:14:51,049 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:14:51,267 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:14:51,512 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:14:51,734 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:14:51,942 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:14:52,161 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:14:52,361 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:14:52,565 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:14:52,764 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:14:52,972 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:14:53,188 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:14:53,406 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:14:53,641 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:14:53,929 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:14:54,228 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:14:54,514 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:14:54,794 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:14:55,178 INFO L158 LiptonReduction]: Checked pairs total: 6237 [2021-04-29 00:14:55,178 INFO L160 LiptonReduction]: Total number of compositions: 94 [2021-04-29 00:14:55,182 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10949 [2021-04-29 00:14:55,203 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 00:14:55,204 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:14:55,204 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:55,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:55,205 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:55,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:55,215 INFO L82 PathProgramCache]: Analyzing trace with hash 300360819, now seen corresponding path program 1 times [2021-04-29 00:14:55,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:55,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392940970] [2021-04-29 00:14:55,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:55,514 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:14:55,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:14:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:55,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392940970] [2021-04-29 00:14:55,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:55,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:14:55,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035151477] [2021-04-29 00:14:55,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:14:55,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:55,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:14:55,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:14:55,566 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:14:55,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:55,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:14:55,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:55,728 INFO L129 PetriNetUnfolder]: 84/344 cut-off events. [2021-04-29 00:14:55,728 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:14:55,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 344 events. 84/344 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2561 event pairs, 43 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 492. Up to 127 conditions per place. [2021-04-29 00:14:55,732 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 4 selfloop transitions, 5 changer transitions 38/77 dead transitions. [2021-04-29 00:14:55,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 77 transitions, 227 flow [2021-04-29 00:14:55,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:14:55,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:14:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2021-04-29 00:14:55,753 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7145708582834331 [2021-04-29 00:14:55,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2021-04-29 00:14:55,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2021-04-29 00:14:55,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:55,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2021-04-29 00:14:55,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,779 INFO L185 Difference]: Start difference. First operand has 79 places, 69 transitions, 147 flow. Second operand 3 states and 358 transitions. [2021-04-29 00:14:55,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 77 transitions, 227 flow [2021-04-29 00:14:55,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 77 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:14:55,791 INFO L241 Difference]: Finished difference. Result has 79 places, 39 transitions, 107 flow [2021-04-29 00:14:55,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=79, PETRI_TRANSITIONS=39} [2021-04-29 00:14:55,798 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2021-04-29 00:14:55,798 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:55,800 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 39 transitions, 107 flow [2021-04-29 00:14:55,801 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 39 transitions, 107 flow [2021-04-29 00:14:55,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 107 flow [2021-04-29 00:14:55,812 INFO L129 PetriNetUnfolder]: 11/86 cut-off events. [2021-04-29 00:14:55,813 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:14:55,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 86 events. 11/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 410 event pairs, 7 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 125. Up to 26 conditions per place. [2021-04-29 00:14:55,816 INFO L146 LiptonReduction]: Number of co-enabled transitions 794 [2021-04-29 00:14:55,827 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:14:55,828 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:55,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-04-29 00:14:55,830 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 107 flow [2021-04-29 00:14:55,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,831 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:55,831 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:55,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:14:55,831 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:55,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1508629814, now seen corresponding path program 1 times [2021-04-29 00:14:55,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:55,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115902129] [2021-04-29 00:14:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:55,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:55,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:55,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115902129] [2021-04-29 00:14:55,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:55,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:14:55,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893786346] [2021-04-29 00:14:55,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:14:55,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:55,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:14:55,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:14:55,950 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 167 [2021-04-29 00:14:55,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:55,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 167 [2021-04-29 00:14:55,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:55,972 INFO L129 PetriNetUnfolder]: 8/78 cut-off events. [2021-04-29 00:14:55,972 INFO L130 PetriNetUnfolder]: For 13/16 co-relation queries the response was YES. [2021-04-29 00:14:55,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 78 events. 8/78 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 357 event pairs, 4 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 120. Up to 21 conditions per place. [2021-04-29 00:14:55,977 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 1 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2021-04-29 00:14:55,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 115 flow [2021-04-29 00:14:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:14:55,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:14:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-04-29 00:14:55,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445109780439122 [2021-04-29 00:14:55,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-04-29 00:14:55,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-04-29 00:14:55,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:55,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-04-29 00:14:55,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:55,995 INFO L185 Difference]: Start difference. First operand has 46 places, 39 transitions, 107 flow. Second operand 3 states and 373 transitions. [2021-04-29 00:14:55,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 115 flow [2021-04-29 00:14:55,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:14:55,997 INFO L241 Difference]: Finished difference. Result has 48 places, 38 transitions, 111 flow [2021-04-29 00:14:55,998 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2021-04-29 00:14:55,998 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -31 predicate places. [2021-04-29 00:14:55,998 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:55,999 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 38 transitions, 111 flow [2021-04-29 00:14:56,000 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 38 transitions, 111 flow [2021-04-29 00:14:56,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 111 flow [2021-04-29 00:14:56,016 INFO L129 PetriNetUnfolder]: 8/83 cut-off events. [2021-04-29 00:14:56,016 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-04-29 00:14:56,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 83 events. 8/83 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 406 event pairs, 4 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 122. Up to 21 conditions per place. [2021-04-29 00:14:56,019 INFO L146 LiptonReduction]: Number of co-enabled transitions 746 [2021-04-29 00:14:56,030 INFO L158 LiptonReduction]: Checked pairs total: 193 [2021-04-29 00:14:56,030 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:56,032 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 00:14:56,035 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 111 flow [2021-04-29 00:14:56,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:56,036 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:56,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:14:56,041 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:56,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:56,042 INFO L82 PathProgramCache]: Analyzing trace with hash 721249491, now seen corresponding path program 1 times [2021-04-29 00:14:56,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:56,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316118340] [2021-04-29 00:14:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:56,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:56,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316118340] [2021-04-29 00:14:56,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:56,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:14:56,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524332125] [2021-04-29 00:14:56,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:14:56,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:56,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:14:56,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:14:56,191 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 167 [2021-04-29 00:14:56,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:56,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 167 [2021-04-29 00:14:56,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:56,208 INFO L129 PetriNetUnfolder]: 6/70 cut-off events. [2021-04-29 00:14:56,208 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-04-29 00:14:56,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 70 events. 6/70 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 297 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 116. Up to 18 conditions per place. [2021-04-29 00:14:56,209 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 3 selfloop transitions, 4 changer transitions 1/40 dead transitions. [2021-04-29 00:14:56,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 133 flow [2021-04-29 00:14:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:14:56,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:14:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2021-04-29 00:14:56,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7864271457085829 [2021-04-29 00:14:56,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2021-04-29 00:14:56,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2021-04-29 00:14:56,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:56,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2021-04-29 00:14:56,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,216 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 111 flow. Second operand 3 states and 394 transitions. [2021-04-29 00:14:56,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 133 flow [2021-04-29 00:14:56,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:14:56,218 INFO L241 Difference]: Finished difference. Result has 48 places, 39 transitions, 129 flow [2021-04-29 00:14:56,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2021-04-29 00:14:56,219 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -31 predicate places. [2021-04-29 00:14:56,219 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:56,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 39 transitions, 129 flow [2021-04-29 00:14:56,220 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 39 transitions, 129 flow [2021-04-29 00:14:56,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 39 transitions, 129 flow [2021-04-29 00:14:56,229 INFO L129 PetriNetUnfolder]: 6/75 cut-off events. [2021-04-29 00:14:56,229 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-29 00:14:56,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 75 events. 6/75 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 338 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 121. Up to 18 conditions per place. [2021-04-29 00:14:56,232 INFO L146 LiptonReduction]: Number of co-enabled transitions 760 [2021-04-29 00:14:56,241 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:14:56,241 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:56,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:14:56,243 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 129 flow [2021-04-29 00:14:56,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,244 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:56,244 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:56,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:14:56,244 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:56,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:56,245 INFO L82 PathProgramCache]: Analyzing trace with hash 883887786, now seen corresponding path program 1 times [2021-04-29 00:14:56,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:56,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189419142] [2021-04-29 00:14:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:56,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,303 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:14:56,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:14:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:56,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189419142] [2021-04-29 00:14:56,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:56,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:14:56,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749818327] [2021-04-29 00:14:56,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:14:56,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:56,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:14:56,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:14:56,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-29 00:14:56,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:56,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-29 00:14:56,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:56,377 INFO L129 PetriNetUnfolder]: 33/156 cut-off events. [2021-04-29 00:14:56,377 INFO L130 PetriNetUnfolder]: For 71/102 co-relation queries the response was YES. [2021-04-29 00:14:56,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 156 events. 33/156 cut-off events. For 71/102 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 853 event pairs, 1 based on Foata normal form. 12/112 useless extension candidates. Maximal degree in co-relation 333. Up to 38 conditions per place. [2021-04-29 00:14:56,380 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 11 selfloop transitions, 18 changer transitions 0/56 dead transitions. [2021-04-29 00:14:56,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 56 transitions, 282 flow [2021-04-29 00:14:56,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:14:56,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:14:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-04-29 00:14:56,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6491017964071857 [2021-04-29 00:14:56,383 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-04-29 00:14:56,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-04-29 00:14:56,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:56,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-04-29 00:14:56,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,390 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,390 INFO L185 Difference]: Start difference. First operand has 47 places, 39 transitions, 129 flow. Second operand 5 states and 542 transitions. [2021-04-29 00:14:56,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 56 transitions, 282 flow [2021-04-29 00:14:56,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:14:56,394 INFO L241 Difference]: Finished difference. Result has 54 places, 52 transitions, 283 flow [2021-04-29 00:14:56,394 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2021-04-29 00:14:56,394 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -25 predicate places. [2021-04-29 00:14:56,394 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:56,394 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 52 transitions, 283 flow [2021-04-29 00:14:56,395 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 52 transitions, 283 flow [2021-04-29 00:14:56,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 52 transitions, 283 flow [2021-04-29 00:14:56,413 INFO L129 PetriNetUnfolder]: 24/144 cut-off events. [2021-04-29 00:14:56,414 INFO L130 PetriNetUnfolder]: For 105/119 co-relation queries the response was YES. [2021-04-29 00:14:56,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 144 events. 24/144 cut-off events. For 105/119 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 830 event pairs, 4 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 357. Up to 39 conditions per place. [2021-04-29 00:14:56,419 INFO L146 LiptonReduction]: Number of co-enabled transitions 1138 [2021-04-29 00:14:56,427 INFO L158 LiptonReduction]: Checked pairs total: 33 [2021-04-29 00:14:56,427 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:56,427 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 00:14:56,429 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 283 flow [2021-04-29 00:14:56,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:56,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:56,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:14:56,430 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:56,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:56,431 INFO L82 PathProgramCache]: Analyzing trace with hash 882965226, now seen corresponding path program 2 times [2021-04-29 00:14:56,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:56,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813180581] [2021-04-29 00:14:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:56,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,487 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:14:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:14:56,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:56,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813180581] [2021-04-29 00:14:56,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:56,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:14:56,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040179270] [2021-04-29 00:14:56,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:14:56,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:56,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:14:56,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:14:56,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-29 00:14:56,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 283 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:56,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-29 00:14:56,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:56,560 INFO L129 PetriNetUnfolder]: 23/159 cut-off events. [2021-04-29 00:14:56,560 INFO L130 PetriNetUnfolder]: For 276/335 co-relation queries the response was YES. [2021-04-29 00:14:56,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 159 events. 23/159 cut-off events. For 276/335 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 995 event pairs, 1 based on Foata normal form. 14/109 useless extension candidates. Maximal degree in co-relation 427. Up to 35 conditions per place. [2021-04-29 00:14:56,562 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 7 selfloop transitions, 9 changer transitions 17/59 dead transitions. [2021-04-29 00:14:56,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 409 flow [2021-04-29 00:14:56,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:14:56,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:14:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-04-29 00:14:56,566 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.644311377245509 [2021-04-29 00:14:56,566 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-04-29 00:14:56,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-04-29 00:14:56,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:56,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-04-29 00:14:56,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,573 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,573 INFO L185 Difference]: Start difference. First operand has 54 places, 52 transitions, 283 flow. Second operand 5 states and 538 transitions. [2021-04-29 00:14:56,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 409 flow [2021-04-29 00:14:56,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 407 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-29 00:14:56,580 INFO L241 Difference]: Finished difference. Result has 60 places, 40 transitions, 212 flow [2021-04-29 00:14:56,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2021-04-29 00:14:56,581 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -19 predicate places. [2021-04-29 00:14:56,581 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:56,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 40 transitions, 212 flow [2021-04-29 00:14:56,581 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 40 transitions, 212 flow [2021-04-29 00:14:56,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 40 transitions, 212 flow [2021-04-29 00:14:56,592 INFO L129 PetriNetUnfolder]: 7/73 cut-off events. [2021-04-29 00:14:56,592 INFO L130 PetriNetUnfolder]: For 100/105 co-relation queries the response was YES. [2021-04-29 00:14:56,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 73 events. 7/73 cut-off events. For 100/105 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 323 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 191. Up to 19 conditions per place. [2021-04-29 00:14:56,595 INFO L146 LiptonReduction]: Number of co-enabled transitions 732 [2021-04-29 00:14:56,600 INFO L158 LiptonReduction]: Checked pairs total: 21 [2021-04-29 00:14:56,601 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:56,601 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-29 00:14:56,608 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 212 flow [2021-04-29 00:14:56,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:56,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:56,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:14:56,610 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:56,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1905649158, now seen corresponding path program 1 times [2021-04-29 00:14:56,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:56,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536518754] [2021-04-29 00:14:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:56,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:14:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:56,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536518754] [2021-04-29 00:14:56,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:56,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:14:56,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444597995] [2021-04-29 00:14:56,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:14:56,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:56,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:14:56,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:14:56,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:14:56,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:56,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:14:56,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:57,694 INFO L129 PetriNetUnfolder]: 4618/7364 cut-off events. [2021-04-29 00:14:57,695 INFO L130 PetriNetUnfolder]: For 5544/6163 co-relation queries the response was YES. [2021-04-29 00:14:57,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15585 conditions, 7364 events. 4618/7364 cut-off events. For 5544/6163 co-relation queries the response was YES. Maximal size of possible extension queue 1551. Compared 58648 event pairs, 2131 based on Foata normal form. 99/2015 useless extension candidates. Maximal degree in co-relation 15563. Up to 4834 conditions per place. [2021-04-29 00:14:57,756 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 29 selfloop transitions, 27 changer transitions 0/75 dead transitions. [2021-04-29 00:14:57,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 75 transitions, 394 flow [2021-04-29 00:14:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:14:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:14:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-29 00:14:57,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6838323353293413 [2021-04-29 00:14:57,760 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-29 00:14:57,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-29 00:14:57,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:57,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-29 00:14:57,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:57,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:57,772 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:57,772 INFO L185 Difference]: Start difference. First operand has 59 places, 40 transitions, 212 flow. Second operand 5 states and 571 transitions. [2021-04-29 00:14:57,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 75 transitions, 394 flow [2021-04-29 00:14:57,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 333 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-04-29 00:14:57,782 INFO L241 Difference]: Finished difference. Result has 57 places, 65 transitions, 354 flow [2021-04-29 00:14:57,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=57, PETRI_TRANSITIONS=65} [2021-04-29 00:14:57,782 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -22 predicate places. [2021-04-29 00:14:57,782 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:57,783 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 65 transitions, 354 flow [2021-04-29 00:14:57,783 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 65 transitions, 354 flow [2021-04-29 00:14:57,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions, 354 flow [2021-04-29 00:14:58,505 INFO L129 PetriNetUnfolder]: 4020/6549 cut-off events. [2021-04-29 00:14:58,506 INFO L130 PetriNetUnfolder]: For 2181/4722 co-relation queries the response was YES. [2021-04-29 00:14:58,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18714 conditions, 6549 events. 4020/6549 cut-off events. For 2181/4722 co-relation queries the response was YES. Maximal size of possible extension queue 1431. Compared 54481 event pairs, 1980 based on Foata normal form. 2/1815 useless extension candidates. Maximal degree in co-relation 18698. Up to 6197 conditions per place. [2021-04-29 00:14:58,618 INFO L146 LiptonReduction]: Number of co-enabled transitions 876 [2021-04-29 00:14:58,636 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:14:58,636 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:58,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 855 [2021-04-29 00:14:58,643 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 65 transitions, 354 flow [2021-04-29 00:14:58,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:58,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:58,644 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:14:58,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:14:58,646 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:58,646 INFO L82 PathProgramCache]: Analyzing trace with hash -2127930386, now seen corresponding path program 1 times [2021-04-29 00:14:58,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:58,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225541889] [2021-04-29 00:14:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:58,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:58,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:58,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:58,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:58,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:58,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:14:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:58,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225541889] [2021-04-29 00:14:58,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:58,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:14:58,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178169709] [2021-04-29 00:14:58,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:14:58,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:58,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:14:58,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:14:58,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:14:58,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 65 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:58,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:58,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:14:58,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:14:59,837 INFO L129 PetriNetUnfolder]: 4390/7784 cut-off events. [2021-04-29 00:14:59,838 INFO L130 PetriNetUnfolder]: For 4305/15150 co-relation queries the response was YES. [2021-04-29 00:14:59,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29714 conditions, 7784 events. 4390/7784 cut-off events. For 4305/15150 co-relation queries the response was YES. Maximal size of possible extension queue 2061. Compared 71606 event pairs, 460 based on Foata normal form. 144/2532 useless extension candidates. Maximal degree in co-relation 29696. Up to 7202 conditions per place. [2021-04-29 00:14:59,906 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 21 selfloop transitions, 52 changer transitions 9/101 dead transitions. [2021-04-29 00:14:59,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 101 transitions, 713 flow [2021-04-29 00:14:59,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:14:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:14:59,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-29 00:14:59,910 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6852010265183918 [2021-04-29 00:14:59,910 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-29 00:14:59,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-29 00:14:59,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:14:59,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-29 00:14:59,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:59,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:59,918 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:59,918 INFO L185 Difference]: Start difference. First operand has 57 places, 65 transitions, 354 flow. Second operand 7 states and 801 transitions. [2021-04-29 00:14:59,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 101 transitions, 713 flow [2021-04-29 00:14:59,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 101 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:14:59,968 INFO L241 Difference]: Finished difference. Result has 66 places, 90 transitions, 693 flow [2021-04-29 00:14:59,969 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=693, PETRI_PLACES=66, PETRI_TRANSITIONS=90} [2021-04-29 00:14:59,969 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -13 predicate places. [2021-04-29 00:14:59,969 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:59,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 90 transitions, 693 flow [2021-04-29 00:14:59,970 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 90 transitions, 693 flow [2021-04-29 00:14:59,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 90 transitions, 693 flow [2021-04-29 00:15:00,565 INFO L129 PetriNetUnfolder]: 2602/5199 cut-off events. [2021-04-29 00:15:00,565 INFO L130 PetriNetUnfolder]: For 8637/19689 co-relation queries the response was YES. [2021-04-29 00:15:00,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21930 conditions, 5199 events. 2602/5199 cut-off events. For 8637/19689 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 51997 event pairs, 459 based on Foata normal form. 6/1448 useless extension candidates. Maximal degree in co-relation 21909. Up to 4766 conditions per place. [2021-04-29 00:15:00,642 INFO L146 LiptonReduction]: Number of co-enabled transitions 1022 [2021-04-29 00:15:00,667 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:15:00,667 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:15:00,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 698 [2021-04-29 00:15:00,668 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 90 transitions, 693 flow [2021-04-29 00:15:00,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:00,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:15:00,669 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:15:00,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:15:00,669 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:15:00,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:15:00,670 INFO L82 PathProgramCache]: Analyzing trace with hash -606371153, now seen corresponding path program 1 times [2021-04-29 00:15:00,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:15:00,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034679423] [2021-04-29 00:15:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:15:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:15:00,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:15:00,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:15:00,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:00,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:15:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:15:00,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034679423] [2021-04-29 00:15:00,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:15:00,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:15:00,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811219041] [2021-04-29 00:15:00,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:15:00,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:15:00,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:15:00,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:15:00,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 167 [2021-04-29 00:15:00,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 90 transitions, 693 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 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) [2021-04-29 00:15:00,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:15:00,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 167 [2021-04-29 00:15:00,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:15:01,622 INFO L129 PetriNetUnfolder]: 3628/7200 cut-off events. [2021-04-29 00:15:01,622 INFO L130 PetriNetUnfolder]: For 13914/27814 co-relation queries the response was YES. [2021-04-29 00:15:01,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30027 conditions, 7200 events. 3628/7200 cut-off events. For 13914/27814 co-relation queries the response was YES. Maximal size of possible extension queue 2046. Compared 73323 event pairs, 648 based on Foata normal form. 80/2016 useless extension candidates. Maximal degree in co-relation 30004. Up to 6692 conditions per place. [2021-04-29 00:15:01,655 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 5 selfloop transitions, 3 changer transitions 47/92 dead transitions. [2021-04-29 00:15:01,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 723 flow [2021-04-29 00:15:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:15:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:15:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2021-04-29 00:15:01,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.688622754491018 [2021-04-29 00:15:01,658 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 460 transitions. [2021-04-29 00:15:01,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 460 transitions. [2021-04-29 00:15:01,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:15:01,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 460 transitions. [2021-04-29 00:15:01,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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) [2021-04-29 00:15:01,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:01,662 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:01,662 INFO L185 Difference]: Start difference. First operand has 66 places, 90 transitions, 693 flow. Second operand 4 states and 460 transitions. [2021-04-29 00:15:01,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 723 flow [2021-04-29 00:15:01,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 92 transitions, 594 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-29 00:15:01,963 INFO L241 Difference]: Finished difference. Result has 68 places, 45 transitions, 276 flow [2021-04-29 00:15:01,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2021-04-29 00:15:01,964 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -11 predicate places. [2021-04-29 00:15:01,964 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:15:01,964 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 45 transitions, 276 flow [2021-04-29 00:15:01,965 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 45 transitions, 276 flow [2021-04-29 00:15:01,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 45 transitions, 276 flow [2021-04-29 00:15:02,043 INFO L129 PetriNetUnfolder]: 343/851 cut-off events. [2021-04-29 00:15:02,044 INFO L130 PetriNetUnfolder]: For 1306/1448 co-relation queries the response was YES. [2021-04-29 00:15:02,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3075 conditions, 851 events. 343/851 cut-off events. For 1306/1448 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 6989 event pairs, 82 based on Foata normal form. 2/404 useless extension candidates. Maximal degree in co-relation 3053. Up to 592 conditions per place. [2021-04-29 00:15:02,058 INFO L146 LiptonReduction]: Number of co-enabled transitions 414 [2021-04-29 00:15:02,065 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:15:02,066 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:15:02,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-04-29 00:15:02,067 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 276 flow [2021-04-29 00:15:02,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 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) [2021-04-29 00:15:02,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:15:02,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:15:02,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:15:02,068 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:15:02,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:15:02,069 INFO L82 PathProgramCache]: Analyzing trace with hash 983933328, now seen corresponding path program 1 times [2021-04-29 00:15:02,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:15:02,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7168723] [2021-04-29 00:15:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:15:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:15:02,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:02,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:15:02,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:15:02,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:02,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:15:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:15:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:15:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:15:02,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7168723] [2021-04-29 00:15:02,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:15:02,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:15:02,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613008567] [2021-04-29 00:15:02,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:15:02,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:15:02,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:15:02,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:15:02,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:15:02,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:02,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:15:02,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:15:02,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:15:02,394 INFO L129 PetriNetUnfolder]: 655/1367 cut-off events. [2021-04-29 00:15:02,395 INFO L130 PetriNetUnfolder]: For 1561/2921 co-relation queries the response was YES. [2021-04-29 00:15:02,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 1367 events. 655/1367 cut-off events. For 1561/2921 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 10903 event pairs, 1 based on Foata normal form. 44/705 useless extension candidates. Maximal degree in co-relation 5507. Up to 883 conditions per place. [2021-04-29 00:15:02,402 INFO L132 encePairwiseOnDemand]: 155/167 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2021-04-29 00:15:02,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 392 flow [2021-04-29 00:15:02,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:15:02,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:15:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-04-29 00:15:02,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.649272882805817 [2021-04-29 00:15:02,406 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-04-29 00:15:02,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-04-29 00:15:02,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:15:02,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-04-29 00:15:02,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:02,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:02,414 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:02,415 INFO L185 Difference]: Start difference. First operand has 56 places, 45 transitions, 276 flow. Second operand 7 states and 759 transitions. [2021-04-29 00:15:02,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 392 flow [2021-04-29 00:15:02,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 356 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-04-29 00:15:02,419 INFO L241 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-04-29 00:15:02,419 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-04-29 00:15:02,420 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -23 predicate places. [2021-04-29 00:15:02,420 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:15:02,420 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 0 transitions, 0 flow [2021-04-29 00:15:02,420 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 0 transitions, 0 flow [2021-04-29 00:15:02,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:15:02,421 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:15:02,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:15:02,421 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. [2021-04-29 00:15:02,421 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:15:02,421 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:15:02,421 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:15:02,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-29 00:15:02,422 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:15:02,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:02,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:15:02,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:15:02 BasicIcfg [2021-04-29 00:15:02,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:15:02,429 INFO L168 Benchmark]: Toolchain (without parser) took 20142.02 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 275.9 MB in the beginning and 221.4 MB in the end (delta: 54.5 MB). Peak memory consumption was 279.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:15:02,430 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory was 270.4 MB in the beginning and 270.3 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:15:02,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 836.58 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 274.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:15:02,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.80 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:15:02,431 INFO L168 Benchmark]: Boogie Preprocessor took 60.67 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 270.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:15:02,431 INFO L168 Benchmark]: RCFGBuilder took 620.65 ms. Allocated memory is still 302.0 MB. Free memory was 270.2 MB in the beginning and 248.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:15:02,432 INFO L168 Benchmark]: TraceAbstraction took 18470.93 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 248.2 MB in the beginning and 221.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 252.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:15:02,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory was 270.4 MB in the beginning and 270.3 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 836.58 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 274.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 96.80 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.67 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 270.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 620.65 ms. Allocated memory is still 302.0 MB. Free memory was 270.2 MB in the beginning and 248.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 18470.93 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 248.2 MB in the beginning and 221.4 MB in the end (delta: 26.8 MB). Peak memory consumption was 252.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10923.0ms, 67 PlacesBefore, 79 PlacesAfterwards, 58 TransitionsBefore, 69 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2177, positive: 1983, positive conditional: 1983, positive unconditional: 0, negative: 194, negative conditional: 194, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 991, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 991, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 991, positive: 901, positive conditional: 0, positive unconditional: 901, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 489, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 363, negative conditional: 0, negative unconditional: 363, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2177, positive: 1057, positive conditional: 1057, positive unconditional: 0, negative: 129, negative conditional: 129, negative unconditional: 0, unknown: 991, unknown conditional: 991, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 972, Positive cache size: 907, Positive conditional cache size: 907, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.1ms, 79 PlacesBefore, 46 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 9, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 40, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 981, Positive cache size: 915, Positive conditional cache size: 915, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.2ms, 48 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 746 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 193 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 3, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 3, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 989, Positive cache size: 922, Positive conditional cache size: 922, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.4ms, 48 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 9, positive unconditional: 7, 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: 17, positive: 16, positive conditional: 9, positive unconditional: 7, 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: 17, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 50, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1006, Positive cache size: 938, Positive conditional cache size: 938, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.3ms, 54 PlacesBefore, 54 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1006, Positive cache size: 938, Positive conditional cache size: 938, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.5ms, 60 PlacesBefore, 59 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 2, 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: 2, positive: 2, positive conditional: 2, 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: 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 853.5ms, 57 PlacesBefore, 57 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 876 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 696.9ms, 66 PlacesBefore, 66 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 1022 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.0ms, 68 PlacesBefore, 56 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 414 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 56 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, 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: 12.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 18318.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4234.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11075.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 64 SDslu, 25 SDs, 0 SdLazy, 308 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 352.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 131.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=7, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.4ms SsaConstructionTime, 253.4ms SatisfiabilityAnalysisTime, 635.1ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...