/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:11:27,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:11:27,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:11:27,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:11:27,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:11:27,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:11:27,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:11:27,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:11:27,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:11:27,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:11:27,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:11:27,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:11:27,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:11:27,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:11:27,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:11:27,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:11:27,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:11:27,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:11:27,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:11:27,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:11:27,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:11:27,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:11:27,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:11:27,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:11:27,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 16:11:27,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 16:11:27,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 16:11:27,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 16:11:27,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 16:11:27,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 16:11:27,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:11:27,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:11:27,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:11:27,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:11:27,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:11:27,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:11:27,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:11:27,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:11:27,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:11:27,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:11:27,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:11:27,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 16:11:27,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:11:27,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:11:27,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:11:27,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:11:27,589 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:11:27,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:11:27,589 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:11:27,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:11:27,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:11:27,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:11:27,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:11:27,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:11:27,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:11:27,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:11:27,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:11:27,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:11:27,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:11:27,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:11:27,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:11:27,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:11:27,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:11:27,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:11:27,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:11:27,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:11:27,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:11:27,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:11:27,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:11:27,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:11:27,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:11:27,897 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:11:27,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-06-11 16:11:27,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0568ac3eb/b77afbe8aa784a3993581dfba1d3e0c0/FLAG61be9cc6b [2021-06-11 16:11:28,447 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:11:28,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-06-11 16:11:28,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0568ac3eb/b77afbe8aa784a3993581dfba1d3e0c0/FLAG61be9cc6b [2021-06-11 16:11:28,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0568ac3eb/b77afbe8aa784a3993581dfba1d3e0c0 [2021-06-11 16:11:28,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:11:28,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:11:28,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:11:28,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:11:28,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:11:28,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:11:28" (1/1) ... [2021-06-11 16:11:28,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cccb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:28, skipping insertion in model container [2021-06-11 16:11:28,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:11:28" (1/1) ... [2021-06-11 16:11:28,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:11:28,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:11:29,090 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-06-11 16:11:29,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:11:29,251 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:11:29,264 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-06-11 16:11:29,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:11:29,385 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:11:29,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29 WrapperNode [2021-06-11 16:11:29,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:11:29,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:11:29,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:11:29,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:11:29,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:11:29,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:11:29,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:11:29,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:11:29,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (1/1) ... [2021-06-11 16:11:29,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:11:29,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:11:29,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:11:29,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:11:29,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (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 [2021-06-11 16:11:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:11:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:11:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:11:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:11:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:11:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:11:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:11:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:11:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:11:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:11:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-11 16:11:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-11 16:11:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:11:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:11:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:11:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:11:29,561 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 16:11:29,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:11:29,906 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:11:29,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:11:29 BoogieIcfgContainer [2021-06-11 16:11:29,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:11:29,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:11:29,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:11:29,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:11:29,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:11:28" (1/3) ... [2021-06-11 16:11:29,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797f9354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:11:29, skipping insertion in model container [2021-06-11 16:11:29,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:11:29" (2/3) ... [2021-06-11 16:11:29,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797f9354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:11:29, skipping insertion in model container [2021-06-11 16:11:29,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:11:29" (3/3) ... [2021-06-11 16:11:29,913 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2021-06-11 16:11:29,918 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:11:29,924 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:11:29,925 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:11:29,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,949 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,949 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,950 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,950 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,950 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,950 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,950 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,951 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,951 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,951 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,953 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,953 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,954 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,954 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,954 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,954 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,955 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,955 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,956 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,956 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,956 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,956 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,957 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,957 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,957 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,957 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,957 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,957 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,964 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,964 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,966 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:11:29,969 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:11:29,984 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-11 16:11:30,000 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:11:30,000 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:11:30,000 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:11:30,000 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:11:30,000 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:11:30,000 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:11:30,000 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:11:30,001 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:11:30,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-06-11 16:11:30,046 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-06-11 16:11:30,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:30,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-06-11 16:11:30,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-06-11 16:11:30,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-06-11 16:11:30,054 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:30,065 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions, 146 flow [2021-06-11 16:11:30,068 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 67 transitions, 146 flow [2021-06-11 16:11:30,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions, 146 flow [2021-06-11 16:11:30,088 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-06-11 16:11:30,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:30,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-06-11 16:11:30,091 INFO L151 LiptonReduction]: Number of co-enabled transitions 1250 [2021-06-11 16:11:30,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:30,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:30,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:30,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:30,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:30,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:30,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:30,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:30,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:30,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:30,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:30,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:30,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:30,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:30,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,597 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 16:11:31,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:31,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:31,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:31,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:31,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:31,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:31,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:31,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 16:11:31,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:11:32,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,014 INFO L147 QuantifierPusher]: treesize reduction 31, result has 11.4 percent of original size 4 [2021-06-11 16:11:32,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:32,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:11:32,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:11:32,444 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-11 16:11:32,631 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-11 16:11:32,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:32,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:32,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 16:11:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:11:32,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:32,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:32,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 16:11:32,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 16:11:32,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:11:32,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:11:32,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 16:11:32,730 INFO L163 LiptonReduction]: Checked pairs total: 2055 [2021-06-11 16:11:32,730 INFO L165 LiptonReduction]: Total number of compositions: 50 [2021-06-11 16:11:32,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2679 [2021-06-11 16:11:32,740 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-06-11 16:11:32,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:32,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:32,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:32,741 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:32,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:32,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1819579583, now seen corresponding path program 1 times [2021-06-11 16:11:32,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:32,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929420102] [2021-06-11 16:11:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:32,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:32,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:32,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929420102] [2021-06-11 16:11:32,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:32,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:11:32,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104765972] [2021-06-11 16:11:32,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 16:11:32,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 16:11:32,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 16:11:32,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 135 [2021-06-11 16:11:32,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:32,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:32,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 135 [2021-06-11 16:11:32,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:32,904 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 16:11:32,904 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:32,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 16:11:32,905 INFO L132 encePairwiseOnDemand]: 134/135 looper letters, 0 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2021-06-11 16:11:32,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 52 flow [2021-06-11 16:11:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 16:11:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 16:11:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2021-06-11 16:11:32,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9518518518518518 [2021-06-11 16:11:32,915 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 257 transitions. [2021-06-11 16:11:32,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 257 transitions. [2021-06-11 16:11:32,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:32,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 257 transitions. [2021-06-11 16:11:32,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:32,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:32,924 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:32,926 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 54 flow. Second operand 2 states and 257 transitions. [2021-06-11 16:11:32,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 52 flow [2021-06-11 16:11:32,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 48 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 16:11:32,929 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 48 flow [2021-06-11 16:11:32,930 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-06-11 16:11:32,931 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2021-06-11 16:11:32,931 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:32,931 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 48 flow [2021-06-11 16:11:32,932 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 48 flow [2021-06-11 16:11:32,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 48 flow [2021-06-11 16:11:32,935 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 16:11:32,935 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:32,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 16:11:32,936 INFO L151 LiptonReduction]: Number of co-enabled transitions 178 [2021-06-11 16:11:32,937 INFO L163 LiptonReduction]: Checked pairs total: 172 [2021-06-11 16:11:32,937 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:32,937 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 16:11:32,938 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 48 flow [2021-06-11 16:11:32,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:32,939 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:32,939 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:32,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:11:32,939 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:32,940 INFO L82 PathProgramCache]: Analyzing trace with hash 572392223, now seen corresponding path program 1 times [2021-06-11 16:11:32,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:32,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275511276] [2021-06-11 16:11:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,093 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:11:33,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:11:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275511276] [2021-06-11 16:11:33,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:11:33,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057402961] [2021-06-11 16:11:33,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:11:33,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:11:33,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:11:33,109 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 16:11:33,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 16:11:33,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:33,201 INFO L129 PetriNetUnfolder]: 148/336 cut-off events. [2021-06-11 16:11:33,201 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:33,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 336 events. 148/336 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1848 event pairs, 66 based on Foata normal form. 15/327 useless extension candidates. Maximal degree in co-relation 592. Up to 189 conditions per place. [2021-06-11 16:11:33,205 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 7 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2021-06-11 16:11:33,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 88 flow [2021-06-11 16:11:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:11:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:11:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2021-06-11 16:11:33,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2021-06-11 16:11:33,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2021-06-11 16:11:33,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2021-06-11 16:11:33,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:33,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2021-06-11 16:11:33,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,216 INFO L185 Difference]: Start difference. First operand has 29 places, 20 transitions, 48 flow. Second operand 3 states and 321 transitions. [2021-06-11 16:11:33,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 88 flow [2021-06-11 16:11:33,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 88 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:11:33,217 INFO L241 Difference]: Finished difference. Result has 33 places, 26 transitions, 102 flow [2021-06-11 16:11:33,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2021-06-11 16:11:33,218 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2021-06-11 16:11:33,218 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:33,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 102 flow [2021-06-11 16:11:33,219 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 102 flow [2021-06-11 16:11:33,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 102 flow [2021-06-11 16:11:33,243 INFO L129 PetriNetUnfolder]: 148/333 cut-off events. [2021-06-11 16:11:33,243 INFO L130 PetriNetUnfolder]: For 31/41 co-relation queries the response was YES. [2021-06-11 16:11:33,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 333 events. 148/333 cut-off events. For 31/41 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1833 event pairs, 66 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 697. Up to 189 conditions per place. [2021-06-11 16:11:33,249 INFO L151 LiptonReduction]: Number of co-enabled transitions 216 [2021-06-11 16:11:33,253 INFO L163 LiptonReduction]: Checked pairs total: 16 [2021-06-11 16:11:33,253 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:33,254 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-06-11 16:11:33,258 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 102 flow [2021-06-11 16:11:33,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:33,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:33,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:11:33,258 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:33,259 INFO L82 PathProgramCache]: Analyzing trace with hash 702786869, now seen corresponding path program 1 times [2021-06-11 16:11:33,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:33,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112420778] [2021-06-11 16:11:33,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,319 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:11:33,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:11:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112420778] [2021-06-11 16:11:33,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:33,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164150035] [2021-06-11 16:11:33,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:11:33,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:11:33,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:11:33,330 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 16:11:33,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 16:11:33,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:33,367 INFO L129 PetriNetUnfolder]: 105/258 cut-off events. [2021-06-11 16:11:33,367 INFO L130 PetriNetUnfolder]: For 74/360 co-relation queries the response was YES. [2021-06-11 16:11:33,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 258 events. 105/258 cut-off events. For 74/360 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1263 event pairs, 2 based on Foata normal form. 3/249 useless extension candidates. Maximal degree in co-relation 726. Up to 142 conditions per place. [2021-06-11 16:11:33,369 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 14 selfloop transitions, 11 changer transitions 0/37 dead transitions. [2021-06-11 16:11:33,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 208 flow [2021-06-11 16:11:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:11:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:11:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2021-06-11 16:11:33,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2021-06-11 16:11:33,371 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2021-06-11 16:11:33,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2021-06-11 16:11:33,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:33,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2021-06-11 16:11:33,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,374 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,374 INFO L185 Difference]: Start difference. First operand has 33 places, 26 transitions, 102 flow. Second operand 4 states and 429 transitions. [2021-06-11 16:11:33,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 208 flow [2021-06-11 16:11:33,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:11:33,377 INFO L241 Difference]: Finished difference. Result has 37 places, 34 transitions, 178 flow [2021-06-11 16:11:33,377 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2021-06-11 16:11:33,377 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2021-06-11 16:11:33,377 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:33,377 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 34 transitions, 178 flow [2021-06-11 16:11:33,378 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 34 transitions, 178 flow [2021-06-11 16:11:33,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 34 transitions, 178 flow [2021-06-11 16:11:33,394 INFO L129 PetriNetUnfolder]: 105/251 cut-off events. [2021-06-11 16:11:33,394 INFO L130 PetriNetUnfolder]: For 186/276 co-relation queries the response was YES. [2021-06-11 16:11:33,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 251 events. 105/251 cut-off events. For 186/276 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1271 event pairs, 23 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 657. Up to 142 conditions per place. [2021-06-11 16:11:33,397 INFO L151 LiptonReduction]: Number of co-enabled transitions 268 [2021-06-11 16:11:33,402 INFO L163 LiptonReduction]: Checked pairs total: 24 [2021-06-11 16:11:33,402 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:33,402 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 16:11:33,403 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 178 flow [2021-06-11 16:11:33,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,403 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:33,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:33,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:11:33,403 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:33,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:33,404 INFO L82 PathProgramCache]: Analyzing trace with hash 564273576, now seen corresponding path program 1 times [2021-06-11 16:11:33,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:33,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939255080] [2021-06-11 16:11:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,444 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:11:33,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:11:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939255080] [2021-06-11 16:11:33,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:33,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815845750] [2021-06-11 16:11:33,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:11:33,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:11:33,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:11:33,456 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 16:11:33,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,457 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,457 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 16:11:33,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:33,502 INFO L129 PetriNetUnfolder]: 89/227 cut-off events. [2021-06-11 16:11:33,502 INFO L130 PetriNetUnfolder]: For 233/728 co-relation queries the response was YES. [2021-06-11 16:11:33,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 227 events. 89/227 cut-off events. For 233/728 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1078 event pairs, 19 based on Foata normal form. 19/239 useless extension candidates. Maximal degree in co-relation 756. Up to 119 conditions per place. [2021-06-11 16:11:33,504 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 19 selfloop transitions, 14 changer transitions 0/45 dead transitions. [2021-06-11 16:11:33,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 318 flow [2021-06-11 16:11:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:11:33,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:11:33,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2021-06-11 16:11:33,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2021-06-11 16:11:33,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2021-06-11 16:11:33,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2021-06-11 16:11:33,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:33,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2021-06-11 16:11:33,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,509 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,509 INFO L185 Difference]: Start difference. First operand has 37 places, 34 transitions, 178 flow. Second operand 4 states and 426 transitions. [2021-06-11 16:11:33,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 318 flow [2021-06-11 16:11:33,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 318 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:11:33,513 INFO L241 Difference]: Finished difference. Result has 43 places, 41 transitions, 302 flow [2021-06-11 16:11:33,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2021-06-11 16:11:33,514 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2021-06-11 16:11:33,514 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:33,514 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 41 transitions, 302 flow [2021-06-11 16:11:33,515 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 41 transitions, 302 flow [2021-06-11 16:11:33,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 41 transitions, 302 flow [2021-06-11 16:11:33,533 INFO L129 PetriNetUnfolder]: 89/224 cut-off events. [2021-06-11 16:11:33,533 INFO L130 PetriNetUnfolder]: For 483/659 co-relation queries the response was YES. [2021-06-11 16:11:33,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 224 events. 89/224 cut-off events. For 483/659 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1109 event pairs, 16 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 765. Up to 119 conditions per place. [2021-06-11 16:11:33,536 INFO L151 LiptonReduction]: Number of co-enabled transitions 316 [2021-06-11 16:11:33,542 INFO L163 LiptonReduction]: Checked pairs total: 31 [2021-06-11 16:11:33,542 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:33,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-06-11 16:11:33,549 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 302 flow [2021-06-11 16:11:33,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:33,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:33,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:11:33,549 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash 313083180, now seen corresponding path program 1 times [2021-06-11 16:11:33,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:33,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169856009] [2021-06-11 16:11:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,609 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:11:33,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:11:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169856009] [2021-06-11 16:11:33,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:33,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453614615] [2021-06-11 16:11:33,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:11:33,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:11:33,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:11:33,622 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 16:11:33,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 16:11:33,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:33,661 INFO L129 PetriNetUnfolder]: 80/211 cut-off events. [2021-06-11 16:11:33,661 INFO L130 PetriNetUnfolder]: For 489/863 co-relation queries the response was YES. [2021-06-11 16:11:33,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 211 events. 80/211 cut-off events. For 489/863 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1006 event pairs, 2 based on Foata normal form. 9/212 useless extension candidates. Maximal degree in co-relation 860. Up to 106 conditions per place. [2021-06-11 16:11:33,663 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 19 selfloop transitions, 18 changer transitions 0/49 dead transitions. [2021-06-11 16:11:33,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 452 flow [2021-06-11 16:11:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:11:33,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:11:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2021-06-11 16:11:33,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2021-06-11 16:11:33,666 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2021-06-11 16:11:33,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2021-06-11 16:11:33,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:33,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2021-06-11 16:11:33,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,669 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,669 INFO L185 Difference]: Start difference. First operand has 43 places, 41 transitions, 302 flow. Second operand 4 states and 426 transitions. [2021-06-11 16:11:33,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 452 flow [2021-06-11 16:11:33,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:11:33,674 INFO L241 Difference]: Finished difference. Result has 48 places, 46 transitions, 438 flow [2021-06-11 16:11:33,674 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=438, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2021-06-11 16:11:33,674 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2021-06-11 16:11:33,674 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:33,674 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 46 transitions, 438 flow [2021-06-11 16:11:33,675 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 46 transitions, 438 flow [2021-06-11 16:11:33,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 46 transitions, 438 flow [2021-06-11 16:11:33,693 INFO L129 PetriNetUnfolder]: 80/202 cut-off events. [2021-06-11 16:11:33,693 INFO L130 PetriNetUnfolder]: For 702/823 co-relation queries the response was YES. [2021-06-11 16:11:33,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 202 events. 80/202 cut-off events. For 702/823 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 955 event pairs, 9 based on Foata normal form. 1/194 useless extension candidates. Maximal degree in co-relation 861. Up to 106 conditions per place. [2021-06-11 16:11:33,695 INFO L151 LiptonReduction]: Number of co-enabled transitions 350 [2021-06-11 16:11:33,703 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 16:11:33,703 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:33,703 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 16:11:33,704 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 438 flow [2021-06-11 16:11:33,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:33,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:33,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:11:33,705 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1082993236, now seen corresponding path program 1 times [2021-06-11 16:11:33,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:33,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995064321] [2021-06-11 16:11:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,761 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:11:33,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:11:33,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995064321] [2021-06-11 16:11:33,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:11:33,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684777240] [2021-06-11 16:11:33,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:11:33,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:11:33,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:11:33,773 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 16:11:33,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 438 flow. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 16:11:33,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:33,851 INFO L129 PetriNetUnfolder]: 80/244 cut-off events. [2021-06-11 16:11:33,851 INFO L130 PetriNetUnfolder]: For 954/1456 co-relation queries the response was YES. [2021-06-11 16:11:33,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 244 events. 80/244 cut-off events. For 954/1456 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1376 event pairs, 1 based on Foata normal form. 21/258 useless extension candidates. Maximal degree in co-relation 1162. Up to 114 conditions per place. [2021-06-11 16:11:33,853 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 20 selfloop transitions, 19 changer transitions 31/82 dead transitions. [2021-06-11 16:11:33,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 82 transitions, 1002 flow [2021-06-11 16:11:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:11:33,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:11:33,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2021-06-11 16:11:33,855 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.794074074074074 [2021-06-11 16:11:33,855 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2021-06-11 16:11:33,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2021-06-11 16:11:33,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:33,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2021-06-11 16:11:33,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,859 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,859 INFO L185 Difference]: Start difference. First operand has 48 places, 46 transitions, 438 flow. Second operand 5 states and 536 transitions. [2021-06-11 16:11:33,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 82 transitions, 1002 flow [2021-06-11 16:11:33,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 82 transitions, 996 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:11:33,864 INFO L241 Difference]: Finished difference. Result has 53 places, 46 transitions, 486 flow [2021-06-11 16:11:33,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=486, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2021-06-11 16:11:33,865 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 20 predicate places. [2021-06-11 16:11:33,865 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:33,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 46 transitions, 486 flow [2021-06-11 16:11:33,865 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 46 transitions, 486 flow [2021-06-11 16:11:33,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 46 transitions, 486 flow [2021-06-11 16:11:33,879 INFO L129 PetriNetUnfolder]: 41/134 cut-off events. [2021-06-11 16:11:33,879 INFO L130 PetriNetUnfolder]: For 621/724 co-relation queries the response was YES. [2021-06-11 16:11:33,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 134 events. 41/134 cut-off events. For 621/724 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 622 event pairs, 4 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 631. Up to 65 conditions per place. [2021-06-11 16:11:33,881 INFO L151 LiptonReduction]: Number of co-enabled transitions 348 [2021-06-11 16:11:33,887 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 16:11:33,887 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:33,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-06-11 16:11:33,888 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 486 flow [2021-06-11 16:11:33,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:33,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:33,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:11:33,889 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:33,889 INFO L82 PathProgramCache]: Analyzing trace with hash 223694974, now seen corresponding path program 1 times [2021-06-11 16:11:33,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:33,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437443413] [2021-06-11 16:11:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:33,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437443413] [2021-06-11 16:11:33,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:33,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019827575] [2021-06-11 16:11:33,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:11:33,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:11:33,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:11:33,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 135 [2021-06-11 16:11:33,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 135 [2021-06-11 16:11:33,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:33,939 INFO L129 PetriNetUnfolder]: 35/140 cut-off events. [2021-06-11 16:11:33,939 INFO L130 PetriNetUnfolder]: For 789/940 co-relation queries the response was YES. [2021-06-11 16:11:33,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 140 events. 35/140 cut-off events. For 789/940 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 688 event pairs, 4 based on Foata normal form. 8/142 useless extension candidates. Maximal degree in co-relation 681. Up to 63 conditions per place. [2021-06-11 16:11:33,940 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 8 selfloop transitions, 8 changer transitions 5/47 dead transitions. [2021-06-11 16:11:33,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 534 flow [2021-06-11 16:11:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:11:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:11:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-06-11 16:11:33,942 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2021-06-11 16:11:33,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-06-11 16:11:33,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-06-11 16:11:33,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:33,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-06-11 16:11:33,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,944 INFO L185 Difference]: Start difference. First operand has 53 places, 46 transitions, 486 flow. Second operand 3 states and 344 transitions. [2021-06-11 16:11:33,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 534 flow [2021-06-11 16:11:33,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 493 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-06-11 16:11:33,948 INFO L241 Difference]: Finished difference. Result has 53 places, 41 transitions, 405 flow [2021-06-11 16:11:33,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2021-06-11 16:11:33,948 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 20 predicate places. [2021-06-11 16:11:33,948 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:33,948 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 41 transitions, 405 flow [2021-06-11 16:11:33,949 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 41 transitions, 405 flow [2021-06-11 16:11:33,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 41 transitions, 405 flow [2021-06-11 16:11:33,961 INFO L129 PetriNetUnfolder]: 29/124 cut-off events. [2021-06-11 16:11:33,961 INFO L130 PetriNetUnfolder]: For 560/623 co-relation queries the response was YES. [2021-06-11 16:11:33,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 124 events. 29/124 cut-off events. For 560/623 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 596 event pairs, 4 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 524. Up to 57 conditions per place. [2021-06-11 16:11:33,963 INFO L151 LiptonReduction]: Number of co-enabled transitions 300 [2021-06-11 16:11:33,967 INFO L163 LiptonReduction]: Checked pairs total: 31 [2021-06-11 16:11:33,967 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:33,967 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 16:11:33,967 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 405 flow [2021-06-11 16:11:33,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:33,968 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:33,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:11:33,968 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:33,968 INFO L82 PathProgramCache]: Analyzing trace with hash -788244257, now seen corresponding path program 1 times [2021-06-11 16:11:33,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:33,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013193427] [2021-06-11 16:11:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:33,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:33,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:33,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013193427] [2021-06-11 16:11:33,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:33,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:33,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015298034] [2021-06-11 16:11:33,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:11:33,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:33,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:11:33,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:11:33,998 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 135 [2021-06-11 16:11:33,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 405 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:33,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:33,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 135 [2021-06-11 16:11:33,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:34,026 INFO L129 PetriNetUnfolder]: 28/147 cut-off events. [2021-06-11 16:11:34,026 INFO L130 PetriNetUnfolder]: For 853/936 co-relation queries the response was YES. [2021-06-11 16:11:34,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 147 events. 28/147 cut-off events. For 853/936 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 807 event pairs, 6 based on Foata normal form. 7/149 useless extension candidates. Maximal degree in co-relation 683. Up to 63 conditions per place. [2021-06-11 16:11:34,027 INFO L132 encePairwiseOnDemand]: 130/135 looper letters, 7 selfloop transitions, 6 changer transitions 11/46 dead transitions. [2021-06-11 16:11:34,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 46 transitions, 498 flow [2021-06-11 16:11:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:11:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:11:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2021-06-11 16:11:34,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8277777777777777 [2021-06-11 16:11:34,029 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 447 transitions. [2021-06-11 16:11:34,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 447 transitions. [2021-06-11 16:11:34,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:34,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 447 transitions. [2021-06-11 16:11:34,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,032 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,032 INFO L185 Difference]: Start difference. First operand has 53 places, 41 transitions, 405 flow. Second operand 4 states and 447 transitions. [2021-06-11 16:11:34,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 46 transitions, 498 flow [2021-06-11 16:11:34,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 46 transitions, 473 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 16:11:34,036 INFO L241 Difference]: Finished difference. Result has 55 places, 35 transitions, 321 flow [2021-06-11 16:11:34,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=321, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2021-06-11 16:11:34,036 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2021-06-11 16:11:34,036 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:34,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 35 transitions, 321 flow [2021-06-11 16:11:34,036 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 35 transitions, 321 flow [2021-06-11 16:11:34,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 35 transitions, 321 flow [2021-06-11 16:11:34,044 INFO L129 PetriNetUnfolder]: 12/80 cut-off events. [2021-06-11 16:11:34,044 INFO L130 PetriNetUnfolder]: For 329/330 co-relation queries the response was YES. [2021-06-11 16:11:34,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 80 events. 12/80 cut-off events. For 329/330 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 338 event pairs, 2 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 342. Up to 31 conditions per place. [2021-06-11 16:11:34,045 INFO L151 LiptonReduction]: Number of co-enabled transitions 196 [2021-06-11 16:11:34,048 INFO L163 LiptonReduction]: Checked pairs total: 25 [2021-06-11 16:11:34,048 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:34,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 16:11:34,049 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 321 flow [2021-06-11 16:11:34,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,049 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:34,049 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:34,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:11:34,049 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:34,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:34,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2080694793, now seen corresponding path program 1 times [2021-06-11 16:11:34,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:34,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010009143] [2021-06-11 16:11:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:34,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:11:34,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:34,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010009143] [2021-06-11 16:11:34,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:34,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:34,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033697924] [2021-06-11 16:11:34,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:11:34,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:34,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:11:34,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:11:34,073 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 135 [2021-06-11 16:11:34,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:34,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 135 [2021-06-11 16:11:34,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:34,089 INFO L129 PetriNetUnfolder]: 9/75 cut-off events. [2021-06-11 16:11:34,089 INFO L130 PetriNetUnfolder]: For 369/370 co-relation queries the response was YES. [2021-06-11 16:11:34,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 75 events. 9/75 cut-off events. For 369/370 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 291 event pairs, 2 based on Foata normal form. 3/77 useless extension candidates. Maximal degree in co-relation 338. Up to 27 conditions per place. [2021-06-11 16:11:34,089 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 6 selfloop transitions, 5 changer transitions 3/35 dead transitions. [2021-06-11 16:11:34,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 35 transitions, 347 flow [2021-06-11 16:11:34,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:11:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:11:34,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-06-11 16:11:34,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2021-06-11 16:11:34,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-06-11 16:11:34,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-06-11 16:11:34,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:34,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-06-11 16:11:34,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,093 INFO L185 Difference]: Start difference. First operand has 55 places, 35 transitions, 321 flow. Second operand 3 states and 344 transitions. [2021-06-11 16:11:34,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 35 transitions, 347 flow [2021-06-11 16:11:34,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 35 transitions, 291 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 16:11:34,096 INFO L241 Difference]: Finished difference. Result has 51 places, 32 transitions, 246 flow [2021-06-11 16:11:34,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2021-06-11 16:11:34,096 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2021-06-11 16:11:34,096 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:34,097 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 32 transitions, 246 flow [2021-06-11 16:11:34,097 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 32 transitions, 246 flow [2021-06-11 16:11:34,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 32 transitions, 246 flow [2021-06-11 16:11:34,103 INFO L129 PetriNetUnfolder]: 8/67 cut-off events. [2021-06-11 16:11:34,103 INFO L130 PetriNetUnfolder]: For 230/231 co-relation queries the response was YES. [2021-06-11 16:11:34,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 67 events. 8/67 cut-off events. For 230/231 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 223 event pairs, 2 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 243. Up to 24 conditions per place. [2021-06-11 16:11:34,104 INFO L151 LiptonReduction]: Number of co-enabled transitions 172 [2021-06-11 16:11:34,106 INFO L163 LiptonReduction]: Checked pairs total: 22 [2021-06-11 16:11:34,106 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:34,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 16:11:34,107 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 246 flow [2021-06-11 16:11:34,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:34,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:34,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 16:11:34,107 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:34,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1094058835, now seen corresponding path program 2 times [2021-06-11 16:11:34,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:34,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700782733] [2021-06-11 16:11:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:34,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:11:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:34,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700782733] [2021-06-11 16:11:34,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:34,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:11:34,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410882300] [2021-06-11 16:11:34,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:11:34,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:34,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:11:34,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:11:34,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 16:11:34,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 246 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) [2021-06-11 16:11:34,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:34,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 16:11:34,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:34,210 INFO L129 PetriNetUnfolder]: 290/555 cut-off events. [2021-06-11 16:11:34,210 INFO L130 PetriNetUnfolder]: For 1770/1908 co-relation queries the response was YES. [2021-06-11 16:11:34,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 555 events. 290/555 cut-off events. For 1770/1908 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 3286 event pairs, 135 based on Foata normal form. 26/518 useless extension candidates. Maximal degree in co-relation 1408. Up to 373 conditions per place. [2021-06-11 16:11:34,213 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 10 selfloop transitions, 10 changer transitions 0/45 dead transitions. [2021-06-11 16:11:34,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 312 flow [2021-06-11 16:11:34,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:11:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:11:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 537 transitions. [2021-06-11 16:11:34,216 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7955555555555556 [2021-06-11 16:11:34,216 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 537 transitions. [2021-06-11 16:11:34,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 537 transitions. [2021-06-11 16:11:34,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:34,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 537 transitions. [2021-06-11 16:11:34,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,219 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,219 INFO L185 Difference]: Start difference. First operand has 51 places, 32 transitions, 246 flow. Second operand 5 states and 537 transitions. [2021-06-11 16:11:34,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 312 flow [2021-06-11 16:11:34,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 287 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 16:11:34,223 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 296 flow [2021-06-11 16:11:34,223 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=296, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-06-11 16:11:34,223 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2021-06-11 16:11:34,223 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:34,223 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 41 transitions, 296 flow [2021-06-11 16:11:34,223 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 41 transitions, 296 flow [2021-06-11 16:11:34,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 296 flow [2021-06-11 16:11:34,261 INFO L129 PetriNetUnfolder]: 320/610 cut-off events. [2021-06-11 16:11:34,261 INFO L130 PetriNetUnfolder]: For 1416/1678 co-relation queries the response was YES. [2021-06-11 16:11:34,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 610 events. 320/610 cut-off events. For 1416/1678 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 3591 event pairs, 147 based on Foata normal form. 4/540 useless extension candidates. Maximal degree in co-relation 1967. Up to 514 conditions per place. [2021-06-11 16:11:34,267 INFO L151 LiptonReduction]: Number of co-enabled transitions 316 [2021-06-11 16:11:34,270 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:11:34,270 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:34,270 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-06-11 16:11:34,270 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 296 flow [2021-06-11 16:11:34,271 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) [2021-06-11 16:11:34,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:34,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:34,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 16:11:34,271 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:34,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:34,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1030963638, now seen corresponding path program 1 times [2021-06-11 16:11:34,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:34,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406934725] [2021-06-11 16:11:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:34,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:11:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:34,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406934725] [2021-06-11 16:11:34,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:34,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:11:34,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916529073] [2021-06-11 16:11:34,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:11:34,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:34,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:11:34,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:11:34,306 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 16:11:34,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 296 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) [2021-06-11 16:11:34,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:34,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 16:11:34,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:34,398 INFO L129 PetriNetUnfolder]: 267/541 cut-off events. [2021-06-11 16:11:34,399 INFO L130 PetriNetUnfolder]: For 2160/3614 co-relation queries the response was YES. [2021-06-11 16:11:34,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 541 events. 267/541 cut-off events. For 2160/3614 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 3303 event pairs, 37 based on Foata normal form. 147/636 useless extension candidates. Maximal degree in co-relation 2179. Up to 469 conditions per place. [2021-06-11 16:11:34,402 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 9 selfloop transitions, 19 changer transitions 1/54 dead transitions. [2021-06-11 16:11:34,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 430 flow [2021-06-11 16:11:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:11:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:11:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 752 transitions. [2021-06-11 16:11:34,404 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7957671957671958 [2021-06-11 16:11:34,404 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 752 transitions. [2021-06-11 16:11:34,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 752 transitions. [2021-06-11 16:11:34,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:34,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 752 transitions. [2021-06-11 16:11:34,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,408 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,408 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 296 flow. Second operand 7 states and 752 transitions. [2021-06-11 16:11:34,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 430 flow [2021-06-11 16:11:34,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:11:34,412 INFO L241 Difference]: Finished difference. Result has 63 places, 50 transitions, 423 flow [2021-06-11 16:11:34,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2021-06-11 16:11:34,412 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2021-06-11 16:11:34,413 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:34,413 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 50 transitions, 423 flow [2021-06-11 16:11:34,413 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 50 transitions, 423 flow [2021-06-11 16:11:34,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 423 flow [2021-06-11 16:11:34,456 INFO L129 PetriNetUnfolder]: 265/569 cut-off events. [2021-06-11 16:11:34,456 INFO L130 PetriNetUnfolder]: For 2383/3362 co-relation queries the response was YES. [2021-06-11 16:11:34,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2691 conditions, 569 events. 265/569 cut-off events. For 2383/3362 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 3740 event pairs, 39 based on Foata normal form. 9/524 useless extension candidates. Maximal degree in co-relation 2664. Up to 495 conditions per place. [2021-06-11 16:11:34,463 INFO L151 LiptonReduction]: Number of co-enabled transitions 448 [2021-06-11 16:11:34,467 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:11:34,467 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:34,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-06-11 16:11:34,468 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 423 flow [2021-06-11 16:11:34,468 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) [2021-06-11 16:11:34,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:34,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:34,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 16:11:34,469 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:34,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:34,469 INFO L82 PathProgramCache]: Analyzing trace with hash 366469035, now seen corresponding path program 1 times [2021-06-11 16:11:34,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:34,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004469261] [2021-06-11 16:11:34,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:34,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:11:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:34,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004469261] [2021-06-11 16:11:34,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:34,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:11:34,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206739933] [2021-06-11 16:11:34,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:11:34,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:34,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:11:34,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:11:34,514 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 16:11:34,515 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 423 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) [2021-06-11 16:11:34,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:34,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 16:11:34,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:34,651 INFO L129 PetriNetUnfolder]: 219/485 cut-off events. [2021-06-11 16:11:34,651 INFO L130 PetriNetUnfolder]: For 3039/6225 co-relation queries the response was YES. [2021-06-11 16:11:34,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2700 conditions, 485 events. 219/485 cut-off events. For 3039/6225 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 3131 event pairs, 5 based on Foata normal form. 248/685 useless extension candidates. Maximal degree in co-relation 2671. Up to 430 conditions per place. [2021-06-11 16:11:34,654 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 4 selfloop transitions, 24 changer transitions 14/63 dead transitions. [2021-06-11 16:11:34,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 619 flow [2021-06-11 16:11:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 16:11:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 16:11:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 967 transitions. [2021-06-11 16:11:34,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7958847736625514 [2021-06-11 16:11:34,657 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 967 transitions. [2021-06-11 16:11:34,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 967 transitions. [2021-06-11 16:11:34,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:34,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 967 transitions. [2021-06-11 16:11:34,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 107.44444444444444) internal successors, (967), 9 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,662 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,662 INFO L185 Difference]: Start difference. First operand has 63 places, 50 transitions, 423 flow. Second operand 9 states and 967 transitions. [2021-06-11 16:11:34,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 619 flow [2021-06-11 16:11:34,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 63 transitions, 574 flow, removed 17 selfloop flow, removed 2 redundant places. [2021-06-11 16:11:34,670 INFO L241 Difference]: Finished difference. Result has 72 places, 49 transitions, 448 flow [2021-06-11 16:11:34,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=448, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2021-06-11 16:11:34,671 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 39 predicate places. [2021-06-11 16:11:34,671 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:34,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 49 transitions, 448 flow [2021-06-11 16:11:34,671 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 49 transitions, 448 flow [2021-06-11 16:11:34,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 49 transitions, 448 flow [2021-06-11 16:11:34,694 INFO L129 PetriNetUnfolder]: 92/267 cut-off events. [2021-06-11 16:11:34,694 INFO L130 PetriNetUnfolder]: For 1278/1428 co-relation queries the response was YES. [2021-06-11 16:11:34,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 267 events. 92/267 cut-off events. For 1278/1428 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 1749 event pairs, 2 based on Foata normal form. 8/249 useless extension candidates. Maximal degree in co-relation 1242. Up to 119 conditions per place. [2021-06-11 16:11:34,697 INFO L151 LiptonReduction]: Number of co-enabled transitions 368 [2021-06-11 16:11:34,702 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:11:34,702 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:34,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 16:11:34,704 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 448 flow [2021-06-11 16:11:34,705 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) [2021-06-11 16:11:34,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:11:34,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:11:34,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 16:11:34,705 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:11:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:11:34,705 INFO L82 PathProgramCache]: Analyzing trace with hash 389454382, now seen corresponding path program 1 times [2021-06-11 16:11:34,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:11:34,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808960627] [2021-06-11 16:11:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:11:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:11:34,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:11:34,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:11:34,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:11:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:11:34,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808960627] [2021-06-11 16:11:34,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:11:34,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 16:11:34,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201383860] [2021-06-11 16:11:34,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 16:11:34,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:11:34,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 16:11:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-11 16:11:34,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 16:11:34,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 448 flow. Second operand has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:11:34,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 16:11:34,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:11:34,873 INFO L129 PetriNetUnfolder]: 74/219 cut-off events. [2021-06-11 16:11:34,873 INFO L130 PetriNetUnfolder]: For 1605/2703 co-relation queries the response was YES. [2021-06-11 16:11:34,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 219 events. 74/219 cut-off events. For 1605/2703 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1345 event pairs, 0 based on Foata normal form. 169/360 useless extension candidates. Maximal degree in co-relation 1202. Up to 97 conditions per place. [2021-06-11 16:11:34,874 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2021-06-11 16:11:34,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 51 transitions, 514 flow [2021-06-11 16:11:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 16:11:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 16:11:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1164 transitions. [2021-06-11 16:11:34,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7838383838383839 [2021-06-11 16:11:34,877 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1164 transitions. [2021-06-11 16:11:34,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1164 transitions. [2021-06-11 16:11:34,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:11:34,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1164 transitions. [2021-06-11 16:11:34,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 105.81818181818181) internal successors, (1164), 11 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,883 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,883 INFO L185 Difference]: Start difference. First operand has 71 places, 49 transitions, 448 flow. Second operand 11 states and 1164 transitions. [2021-06-11 16:11:34,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 51 transitions, 514 flow [2021-06-11 16:11:34,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 51 transitions, 418 flow, removed 17 selfloop flow, removed 13 redundant places. [2021-06-11 16:11:34,888 INFO L241 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2021-06-11 16:11:34,888 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2021-06-11 16:11:34,888 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 34 predicate places. [2021-06-11 16:11:34,889 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:11:34,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 0 transitions, 0 flow [2021-06-11 16:11:34,889 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 0 transitions, 0 flow [2021-06-11 16:11:34,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:11:34,889 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:11:34,889 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:11:34,889 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. [2021-06-11 16:11:34,889 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:11:34,889 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:11:34,889 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:11:34,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:11:34,890 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:11:34,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:11:34,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 16:11:34,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:11:34 BasicIcfg [2021-06-11 16:11:34,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:11:34,894 INFO L168 Benchmark]: Toolchain (without parser) took 5970.59 ms. Allocated memory was 385.9 MB in the beginning and 463.5 MB in the end (delta: 77.6 MB). Free memory was 347.6 MB in the beginning and 362.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 64.9 MB. Max. memory is 16.0 GB. [2021-06-11 16:11:34,894 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 385.9 MB. Free memory is still 365.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:11:34,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.03 ms. Allocated memory is still 385.9 MB. Free memory was 347.5 MB in the beginning and 347.3 MB in the end (delta: 171.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-11 16:11:34,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.10 ms. Allocated memory is still 385.9 MB. Free memory was 347.3 MB in the beginning and 345.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:11:34,895 INFO L168 Benchmark]: Boogie Preprocessor took 32.00 ms. Allocated memory is still 385.9 MB. Free memory was 345.2 MB in the beginning and 344.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:11:34,895 INFO L168 Benchmark]: RCFGBuilder took 428.39 ms. Allocated memory is still 385.9 MB. Free memory was 344.1 MB in the beginning and 319.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 16:11:34,895 INFO L168 Benchmark]: TraceAbstraction took 4984.14 ms. Allocated memory was 385.9 MB in the beginning and 463.5 MB in the end (delta: 77.6 MB). Free memory was 317.9 MB in the beginning and 362.3 MB in the end (delta: -44.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.0 GB. [2021-06-11 16:11:34,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 385.9 MB. Free memory is still 365.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 462.03 ms. Allocated memory is still 385.9 MB. Free memory was 347.5 MB in the beginning and 347.3 MB in the end (delta: 171.0 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 59.10 ms. Allocated memory is still 385.9 MB. Free memory was 347.3 MB in the beginning and 345.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.00 ms. Allocated memory is still 385.9 MB. Free memory was 345.2 MB in the beginning and 344.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 428.39 ms. Allocated memory is still 385.9 MB. Free memory was 344.1 MB in the beginning and 319.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4984.14 ms. Allocated memory was 385.9 MB in the beginning and 463.5 MB in the end (delta: 77.6 MB). Free memory was 317.9 MB in the beginning and 362.3 MB in the end (delta: -44.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2661.8ms, 79 PlacesBefore, 33 PlacesAfterwards, 67 TransitionsBefore, 21 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 2055 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1314, positive: 1235, positive conditional: 1235, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1314, positive: 1235, positive conditional: 0, positive unconditional: 1235, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1314, positive: 1235, positive conditional: 0, positive unconditional: 1235, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 892, positive: 859, positive conditional: 0, positive unconditional: 859, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 892, positive: 833, positive conditional: 0, positive unconditional: 833, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 214, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1314, positive: 376, positive conditional: 0, positive unconditional: 376, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 892, unknown conditional: 0, unknown unconditional: 892] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 859, Positive conditional cache size: 0, Positive unconditional cache size: 859, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7ms, 30 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 178 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 172 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 91, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 91, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 91, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 91, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 860, Positive conditional cache size: 0, Positive unconditional cache size: 860, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.7ms, 33 PlacesBefore, 33 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 860, Positive conditional cache size: 0, Positive unconditional cache size: 860, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.3ms, 37 PlacesBefore, 37 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 895, Positive cache size: 862, Positive conditional cache size: 0, Positive unconditional cache size: 862, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.3ms, 43 PlacesBefore, 43 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 31 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 897, Positive cache size: 864, Positive conditional cache size: 0, Positive unconditional cache size: 864, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.0ms, 48 PlacesBefore, 48 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.7ms, 53 PlacesBefore, 53 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.1ms, 53 PlacesBefore, 53 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 31 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8ms, 55 PlacesBefore, 55 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 51 PlacesBefore, 51 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.6ms, 55 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.6ms, 63 PlacesBefore, 63 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.0ms, 72 PlacesBefore, 71 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 67 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4894.7ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 970.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2736.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 75 SDtfs, 52 SDslu, 41 SDs, 0 SdLazy, 219 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 214.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 186.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=6, InterpolantAutomatonStates: 64, 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: 24.6ms SsaConstructionTime, 180.3ms SatisfiabilityAnalysisTime, 469.4ms InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...