/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/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:23:28,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:23:28,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:23:28,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:23:28,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:23:28,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:23:28,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:23:28,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:23:28,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:23:28,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:23:28,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:23:28,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:23:28,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:23:28,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:23:28,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:23:28,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:23:28,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:23:28,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:23:28,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:23:28,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:23:28,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:23:28,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:23:28,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:23:28,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:23:28,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 16:23:28,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 16:23:28,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 16:23:28,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 16:23:28,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 16:23:28,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 16:23:28,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:23:28,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:23:28,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:23:28,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:23:28,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:23:28,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:23:28,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:23:28,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:23:28,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:23:28,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:23:28,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:23:28,851 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 16:23:28,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:23:28,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:23:28,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:23:28,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:23:28,880 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:23:28,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:23:28,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:23:28,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:23:28,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:23:28,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:23:28,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:23:28,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:23:28,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:23:28,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:23:28,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:23:28,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:23:29,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:23:29,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:23:29,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:23:29,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:23:29,154 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:23:29,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-06-11 16:23:29,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643720371/3ec14e1b381a4046800d961b17adef55/FLAGd44513043 [2021-06-11 16:23:29,609 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:23:29,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-06-11 16:23:29,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643720371/3ec14e1b381a4046800d961b17adef55/FLAGd44513043 [2021-06-11 16:23:29,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643720371/3ec14e1b381a4046800d961b17adef55 [2021-06-11 16:23:29,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:23:29,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:23:29,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:23:29,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:23:29,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:23:29,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:23:29" (1/1) ... [2021-06-11 16:23:29,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ecedd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:29, skipping insertion in model container [2021-06-11 16:23:29,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:23:29" (1/1) ... [2021-06-11 16:23:29,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:23:30,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:23:30,107 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/safe027_tso.oepc.i[950,963] [2021-06-11 16:23:30,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:23:30,259 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:23:30,270 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/safe027_tso.oepc.i[950,963] [2021-06-11 16:23:30,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:23:30,350 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:23:30,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30 WrapperNode [2021-06-11 16:23:30,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:23:30,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:23:30,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:23:30,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:23:30,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:23:30,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:23:30,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:23:30,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:23:30,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... [2021-06-11 16:23:30,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:23:30,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:23:30,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:23:30,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:23:30,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:23:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:23:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:23:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:23:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:23:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:23:30,471 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:23:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:23:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:23:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:23:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:23:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-11 16:23:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-11 16:23:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:23:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:23:30,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:23:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:23:30,473 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 16:23:30,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:23:30,792 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:23:30,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:23:30 BoogieIcfgContainer [2021-06-11 16:23:30,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:23:30,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:23:30,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:23:30,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:23:30,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:23:29" (1/3) ... [2021-06-11 16:23:30,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490f6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:23:30, skipping insertion in model container [2021-06-11 16:23:30,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:23:30" (2/3) ... [2021-06-11 16:23:30,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490f6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:23:30, skipping insertion in model container [2021-06-11 16:23:30,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:23:30" (3/3) ... [2021-06-11 16:23:30,798 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-06-11 16:23:30,801 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:23:30,804 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:23:30,805 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:23:30,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,834 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,837 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,837 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,845 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,845 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,846 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,846 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:23:30,854 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:23:30,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-11 16:23:30,879 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:23:30,879 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:23:30,879 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:23:30,879 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:23:30,879 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:23:30,880 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:23:30,880 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:23:30,880 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:23:30,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-06-11 16:23:30,913 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-06-11 16:23:30,914 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:23:30,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 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. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-06-11 16:23:30,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-06-11 16:23:30,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-06-11 16:23:30,921 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:30,930 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-06-11 16:23:30,934 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-06-11 16:23:30,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-06-11 16:23:30,966 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-06-11 16:23:30,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:23:30,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-06-11 16:23:30,970 INFO L151 LiptonReduction]: Number of co-enabled transitions 1250 [2021-06-11 16:23:31,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:31,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:31,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:31,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:31,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:31,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:31,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:31,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:31,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:32,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:32,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:32,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:32,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:32,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:32,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:32,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:32,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,597 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 16:23:32,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:32,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:32,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:32,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:32,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 16:23:32,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:23:32,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:32,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:32,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:32,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:33,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:33,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:33,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:33,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:33,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:33,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:33,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:33,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:33,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:33,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:33,472 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 16:23:33,667 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 16:23:33,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:33,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:23:33,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:33,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:23:33,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:23:33,742 INFO L163 LiptonReduction]: Checked pairs total: 2091 [2021-06-11 16:23:33,742 INFO L165 LiptonReduction]: Total number of compositions: 52 [2021-06-11 16:23:33,744 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2824 [2021-06-11 16:23:33,751 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-06-11 16:23:33,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:23:33,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:33,752 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:33,752 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:33,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:33,758 INFO L82 PathProgramCache]: Analyzing trace with hash -529701640, now seen corresponding path program 1 times [2021-06-11 16:23:33,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:33,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918852612] [2021-06-11 16:23:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:33,895 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:23:33,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:23:33,908 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 16:23:33,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918852612] [2021-06-11 16:23:33,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:33,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:23:33,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158571811] [2021-06-11 16:23:33,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:23:33,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:33,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:23:33,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:23:33,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 139 [2021-06-11 16:23:33,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 16:23:33,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:33,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 139 [2021-06-11 16:23:33,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:33,945 INFO L129 PetriNetUnfolder]: 14/52 cut-off events. [2021-06-11 16:23:33,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:23:33,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 52 events. 14/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 142 event pairs, 10 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 86. Up to 31 conditions per place. [2021-06-11 16:23:33,946 INFO L132 encePairwiseOnDemand]: 135/139 looper letters, 5 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-06-11 16:23:33,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 22 transitions, 72 flow [2021-06-11 16:23:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:23:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:23:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2021-06-11 16:23:33,954 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8057553956834532 [2021-06-11 16:23:33,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2021-06-11 16:23:33,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2021-06-11 16:23:33,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:33,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2021-06-11 16:23:33,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 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 16:23:33,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 16:23:33,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 16:23:33,965 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 52 flow. Second operand 3 states and 336 transitions. [2021-06-11 16:23:33,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 22 transitions, 72 flow [2021-06-11 16:23:33,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 68 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 16:23:33,968 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 67 flow [2021-06-11 16:23:33,969 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, 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=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2021-06-11 16:23:33,969 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2021-06-11 16:23:33,969 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:33,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 22 transitions, 67 flow [2021-06-11 16:23:33,970 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 22 transitions, 67 flow [2021-06-11 16:23:33,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 22 transitions, 67 flow [2021-06-11 16:23:33,973 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-06-11 16:23:33,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:23:33,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 30 events. 3/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 46 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 45. Up to 10 conditions per place. [2021-06-11 16:23:33,974 INFO L151 LiptonReduction]: Number of co-enabled transitions 200 [2021-06-11 16:23:33,976 INFO L163 LiptonReduction]: Checked pairs total: 120 [2021-06-11 16:23:33,976 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:33,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 16:23:33,976 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 67 flow [2021-06-11 16:23:33,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 16:23:33,977 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:33,977 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:33,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:23:33,977 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:33,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:33,977 INFO L82 PathProgramCache]: Analyzing trace with hash 736797010, now seen corresponding path program 1 times [2021-06-11 16:23:33,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:33,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845371472] [2021-06-11 16:23:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,021 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 16:23:34,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845371472] [2021-06-11 16:23:34,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:23:34,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312496639] [2021-06-11 16:23:34,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:23:34,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:23:34,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:23:34,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 139 [2021-06-11 16:23:34,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:34,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 139 [2021-06-11 16:23:34,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,030 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-06-11 16:23:34,030 INFO L130 PetriNetUnfolder]: For 5/11 co-relation queries the response was YES. [2021-06-11 16:23:34,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 26 events. 2/26 cut-off events. For 5/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 43. Up to 8 conditions per place. [2021-06-11 16:23:34,031 INFO L132 encePairwiseOnDemand]: 136/139 looper letters, 1 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-06-11 16:23:34,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:23:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:23:34,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-06-11 16:23:34,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8657074340527577 [2021-06-11 16:23:34,033 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-06-11 16:23:34,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-06-11 16:23:34,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-06-11 16:23:34,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:34,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 16:23:34,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 16:23:34,035 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 67 flow. Second operand 3 states and 361 transitions. [2021-06-11 16:23:34,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 22 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:23:34,036 INFO L241 Difference]: Finished difference. Result has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2021-06-11 16:23:34,037 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2021-06-11 16:23:34,037 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,037 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,037 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,040 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-06-11 16:23:34,040 INFO L130 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2021-06-11 16:23:34,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 26 events. 2/26 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 43. Up to 8 conditions per place. [2021-06-11 16:23:34,040 INFO L151 LiptonReduction]: Number of co-enabled transitions 200 [2021-06-11 16:23:34,041 INFO L163 LiptonReduction]: Checked pairs total: 120 [2021-06-11 16:23:34,041 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 16:23:34,042 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 75 flow [2021-06-11 16:23:34,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:34,043 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,043 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:23:34,043 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,043 INFO L82 PathProgramCache]: Analyzing trace with hash 759117641, now seen corresponding path program 1 times [2021-06-11 16:23:34,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475957839] [2021-06-11 16:23:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,098 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:23:34,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:23:34,111 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 16:23:34,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475957839] [2021-06-11 16:23:34,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:23:34,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871430258] [2021-06-11 16:23:34,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:23:34,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:23:34,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:23:34,115 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2021-06-11 16:23:34,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 16:23:34,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2021-06-11 16:23:34,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,174 INFO L129 PetriNetUnfolder]: 38/99 cut-off events. [2021-06-11 16:23:34,175 INFO L130 PetriNetUnfolder]: For 76/231 co-relation queries the response was YES. [2021-06-11 16:23:34,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 99 events. 38/99 cut-off events. For 76/231 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 344 event pairs, 4 based on Foata normal form. 7/100 useless extension candidates. Maximal degree in co-relation 224. Up to 43 conditions per place. [2021-06-11 16:23:34,177 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 10 selfloop transitions, 13 changer transitions 0/36 dead transitions. [2021-06-11 16:23:34,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 171 flow [2021-06-11 16:23:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:23:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:23:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 543 transitions. [2021-06-11 16:23:34,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.781294964028777 [2021-06-11 16:23:34,180 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 543 transitions. [2021-06-11 16:23:34,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 543 transitions. [2021-06-11 16:23:34,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 543 transitions. [2021-06-11 16:23:34,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 16:23:34,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 16:23:34,184 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 16:23:34,184 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 75 flow. Second operand 5 states and 543 transitions. [2021-06-11 16:23:34,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 171 flow [2021-06-11 16:23:34,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 161 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:23:34,186 INFO L241 Difference]: Finished difference. Result has 39 places, 32 transitions, 166 flow [2021-06-11 16:23:34,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=166, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2021-06-11 16:23:34,186 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2021-06-11 16:23:34,187 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 32 transitions, 166 flow [2021-06-11 16:23:34,187 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 32 transitions, 166 flow [2021-06-11 16:23:34,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 32 transitions, 166 flow [2021-06-11 16:23:34,201 INFO L129 PetriNetUnfolder]: 23/87 cut-off events. [2021-06-11 16:23:34,201 INFO L130 PetriNetUnfolder]: For 103/191 co-relation queries the response was YES. [2021-06-11 16:23:34,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 87 events. 23/87 cut-off events. For 103/191 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 338 event pairs, 8 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 236. Up to 42 conditions per place. [2021-06-11 16:23:34,203 INFO L151 LiptonReduction]: Number of co-enabled transitions 308 [2021-06-11 16:23:34,206 INFO L163 LiptonReduction]: Checked pairs total: 66 [2021-06-11 16:23:34,206 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 16:23:34,207 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 166 flow [2021-06-11 16:23:34,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 16:23:34,208 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,208 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:23:34,208 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1535819350, now seen corresponding path program 1 times [2021-06-11 16:23:34,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540320296] [2021-06-11 16:23:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,261 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 16:23:34,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540320296] [2021-06-11 16:23:34,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:23:34,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823392468] [2021-06-11 16:23:34,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:23:34,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:23:34,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:23:34,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 139 [2021-06-11 16:23:34,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 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 16:23:34,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 139 [2021-06-11 16:23:34,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,278 INFO L129 PetriNetUnfolder]: 27/83 cut-off events. [2021-06-11 16:23:34,279 INFO L130 PetriNetUnfolder]: For 212/344 co-relation queries the response was YES. [2021-06-11 16:23:34,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 83 events. 27/83 cut-off events. For 212/344 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 301 event pairs, 5 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 248. Up to 41 conditions per place. [2021-06-11 16:23:34,280 INFO L132 encePairwiseOnDemand]: 136/139 looper letters, 1 selfloop transitions, 6 changer transitions 0/32 dead transitions. [2021-06-11 16:23:34,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 180 flow [2021-06-11 16:23:34,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:23:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:23:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2021-06-11 16:23:34,281 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8729016786570744 [2021-06-11 16:23:34,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2021-06-11 16:23:34,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2021-06-11 16:23:34,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2021-06-11 16:23:34,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 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 16:23:34,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 16:23:34,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 16:23:34,283 INFO L185 Difference]: Start difference. First operand has 39 places, 32 transitions, 166 flow. Second operand 3 states and 364 transitions. [2021-06-11 16:23:34,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 180 flow [2021-06-11 16:23:34,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:23:34,285 INFO L241 Difference]: Finished difference. Result has 41 places, 32 transitions, 179 flow [2021-06-11 16:23:34,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2021-06-11 16:23:34,285 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2021-06-11 16:23:34,285 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,286 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 32 transitions, 179 flow [2021-06-11 16:23:34,286 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 32 transitions, 179 flow [2021-06-11 16:23:34,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 179 flow [2021-06-11 16:23:34,296 INFO L129 PetriNetUnfolder]: 25/86 cut-off events. [2021-06-11 16:23:34,296 INFO L130 PetriNetUnfolder]: For 150/270 co-relation queries the response was YES. [2021-06-11 16:23:34,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 86 events. 25/86 cut-off events. For 150/270 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 322 event pairs, 10 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 246. Up to 42 conditions per place. [2021-06-11 16:23:34,298 INFO L151 LiptonReduction]: Number of co-enabled transitions 308 [2021-06-11 16:23:34,302 INFO L163 LiptonReduction]: Checked pairs total: 66 [2021-06-11 16:23:34,302 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-06-11 16:23:34,309 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 179 flow [2021-06-11 16:23:34,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 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 16:23:34,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:23:34,310 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1855056910, now seen corresponding path program 1 times [2021-06-11 16:23:34,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377929403] [2021-06-11 16:23:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,352 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 16:23:34,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377929403] [2021-06-11 16:23:34,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:23:34,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161635302] [2021-06-11 16:23:34,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:23:34,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:23:34,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:23:34,354 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2021-06-11 16:23:34,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:34,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2021-06-11 16:23:34,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,372 INFO L129 PetriNetUnfolder]: 25/87 cut-off events. [2021-06-11 16:23:34,372 INFO L130 PetriNetUnfolder]: For 276/527 co-relation queries the response was YES. [2021-06-11 16:23:34,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 87 events. 25/87 cut-off events. For 276/527 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 333 event pairs, 3 based on Foata normal form. 10/95 useless extension candidates. Maximal degree in co-relation 267. Up to 38 conditions per place. [2021-06-11 16:23:34,373 INFO L132 encePairwiseOnDemand]: 135/139 looper letters, 4 selfloop transitions, 5 changer transitions 8/34 dead transitions. [2021-06-11 16:23:34,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 217 flow [2021-06-11 16:23:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:23:34,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:23:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2021-06-11 16:23:34,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8309352517985612 [2021-06-11 16:23:34,374 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2021-06-11 16:23:34,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2021-06-11 16:23:34,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2021-06-11 16:23:34,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 16:23:34,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 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 16:23:34,377 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 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 16:23:34,377 INFO L185 Difference]: Start difference. First operand has 41 places, 32 transitions, 179 flow. Second operand 4 states and 462 transitions. [2021-06-11 16:23:34,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 217 flow [2021-06-11 16:23:34,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 205 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:23:34,380 INFO L241 Difference]: Finished difference. Result has 44 places, 24 transitions, 136 flow [2021-06-11 16:23:34,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=44, PETRI_TRANSITIONS=24} [2021-06-11 16:23:34,381 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2021-06-11 16:23:34,381 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 24 transitions, 136 flow [2021-06-11 16:23:34,381 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 24 transitions, 136 flow [2021-06-11 16:23:34,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 24 transitions, 136 flow [2021-06-11 16:23:34,384 INFO L129 PetriNetUnfolder]: 8/42 cut-off events. [2021-06-11 16:23:34,385 INFO L130 PetriNetUnfolder]: For 99/126 co-relation queries the response was YES. [2021-06-11 16:23:34,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 42 events. 8/42 cut-off events. For 99/126 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 102 event pairs, 5 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 126. Up to 19 conditions per place. [2021-06-11 16:23:34,385 INFO L151 LiptonReduction]: Number of co-enabled transitions 206 [2021-06-11 16:23:34,386 INFO L163 LiptonReduction]: Checked pairs total: 42 [2021-06-11 16:23:34,387 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 16:23:34,387 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 24 transitions, 136 flow [2021-06-11 16:23:34,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:34,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:23:34,388 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1052792444, now seen corresponding path program 1 times [2021-06-11 16:23:34,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109930329] [2021-06-11 16:23:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,411 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 16:23:34,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109930329] [2021-06-11 16:23:34,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:23:34,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120843095] [2021-06-11 16:23:34,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:23:34,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:23:34,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:23:34,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2021-06-11 16:23:34,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 24 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 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 16:23:34,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2021-06-11 16:23:34,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,439 INFO L129 PetriNetUnfolder]: 14/63 cut-off events. [2021-06-11 16:23:34,439 INFO L130 PetriNetUnfolder]: For 382/425 co-relation queries the response was YES. [2021-06-11 16:23:34,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 63 events. 14/63 cut-off events. For 382/425 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 203 event pairs, 6 based on Foata normal form. 7/65 useless extension candidates. Maximal degree in co-relation 208. Up to 28 conditions per place. [2021-06-11 16:23:34,440 INFO L132 encePairwiseOnDemand]: 135/139 looper letters, 4 selfloop transitions, 5 changer transitions 3/29 dead transitions. [2021-06-11 16:23:34,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 29 transitions, 197 flow [2021-06-11 16:23:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:23:34,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:23:34,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2021-06-11 16:23:34,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8237410071942446 [2021-06-11 16:23:34,441 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2021-06-11 16:23:34,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2021-06-11 16:23:34,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2021-06-11 16:23:34,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 0 states have call successors, (0), 0 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 16:23:34,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 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 16:23:34,444 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 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 16:23:34,444 INFO L185 Difference]: Start difference. First operand has 44 places, 24 transitions, 136 flow. Second operand 4 states and 458 transitions. [2021-06-11 16:23:34,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 29 transitions, 197 flow [2021-06-11 16:23:34,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 169 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-06-11 16:23:34,446 INFO L241 Difference]: Finished difference. Result has 43 places, 24 transitions, 131 flow [2021-06-11 16:23:34,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2021-06-11 16:23:34,446 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2021-06-11 16:23:34,446 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,446 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 24 transitions, 131 flow [2021-06-11 16:23:34,447 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 24 transitions, 131 flow [2021-06-11 16:23:34,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 24 transitions, 131 flow [2021-06-11 16:23:34,450 INFO L129 PetriNetUnfolder]: 8/39 cut-off events. [2021-06-11 16:23:34,450 INFO L130 PetriNetUnfolder]: For 80/85 co-relation queries the response was YES. [2021-06-11 16:23:34,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 39 events. 8/39 cut-off events. For 80/85 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 5 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 123. Up to 18 conditions per place. [2021-06-11 16:23:34,451 INFO L151 LiptonReduction]: Number of co-enabled transitions 130 [2021-06-11 16:23:34,452 INFO L163 LiptonReduction]: Checked pairs total: 30 [2021-06-11 16:23:34,453 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 16:23:34,454 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 24 transitions, 131 flow [2021-06-11 16:23:34,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 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 16:23:34,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,454 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:23:34,454 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1872337968, now seen corresponding path program 1 times [2021-06-11 16:23:34,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568476585] [2021-06-11 16:23:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:23:34,505 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 16:23:34,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568476585] [2021-06-11 16:23:34,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:23:34,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491743351] [2021-06-11 16:23:34,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:23:34,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:23:34,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:23:34,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 139 [2021-06-11 16:23:34,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 24 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 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 16:23:34,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 139 [2021-06-11 16:23:34,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,571 INFO L129 PetriNetUnfolder]: 174/314 cut-off events. [2021-06-11 16:23:34,571 INFO L130 PetriNetUnfolder]: For 1766/1957 co-relation queries the response was YES. [2021-06-11 16:23:34,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 314 events. 174/314 cut-off events. For 1766/1957 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1453 event pairs, 95 based on Foata normal form. 31/305 useless extension candidates. Maximal degree in co-relation 900. Up to 211 conditions per place. [2021-06-11 16:23:34,573 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 10 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2021-06-11 16:23:34,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 197 flow [2021-06-11 16:23:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:23:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:23:34,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 557 transitions. [2021-06-11 16:23:34,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8014388489208633 [2021-06-11 16:23:34,586 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 557 transitions. [2021-06-11 16:23:34,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 557 transitions. [2021-06-11 16:23:34,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 557 transitions. [2021-06-11 16:23:34,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 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 16:23:34,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 16:23:34,588 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 16:23:34,588 INFO L185 Difference]: Start difference. First operand has 43 places, 24 transitions, 131 flow. Second operand 5 states and 557 transitions. [2021-06-11 16:23:34,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 197 flow [2021-06-11 16:23:34,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 177 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-06-11 16:23:34,590 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 186 flow [2021-06-11 16:23:34,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-06-11 16:23:34,590 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2021-06-11 16:23:34,590 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 186 flow [2021-06-11 16:23:34,590 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 186 flow [2021-06-11 16:23:34,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 33 transitions, 186 flow [2021-06-11 16:23:34,605 INFO L129 PetriNetUnfolder]: 159/285 cut-off events. [2021-06-11 16:23:34,605 INFO L130 PetriNetUnfolder]: For 823/897 co-relation queries the response was YES. [2021-06-11 16:23:34,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 285 events. 159/285 cut-off events. For 823/897 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1268 event pairs, 84 based on Foata normal form. 1/258 useless extension candidates. Maximal degree in co-relation 985. Up to 218 conditions per place. [2021-06-11 16:23:34,607 INFO L151 LiptonReduction]: Number of co-enabled transitions 214 [2021-06-11 16:23:34,610 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:23:34,610 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,610 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 16:23:34,610 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 186 flow [2021-06-11 16:23:34,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 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 16:23:34,610 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:23:34,611 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1335019315, now seen corresponding path program 1 times [2021-06-11 16:23:34,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001629083] [2021-06-11 16:23:34,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:23:34,639 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 16:23:34,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001629083] [2021-06-11 16:23:34,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:23:34,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864425464] [2021-06-11 16:23:34,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:23:34,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:23:34,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:23:34,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 139 [2021-06-11 16:23:34,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 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 16:23:34,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 139 [2021-06-11 16:23:34,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,695 INFO L129 PetriNetUnfolder]: 148/297 cut-off events. [2021-06-11 16:23:34,695 INFO L130 PetriNetUnfolder]: For 1698/2626 co-relation queries the response was YES. [2021-06-11 16:23:34,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 297 events. 148/297 cut-off events. For 1698/2626 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1434 event pairs, 31 based on Foata normal form. 102/371 useless extension candidates. Maximal degree in co-relation 1220. Up to 236 conditions per place. [2021-06-11 16:23:34,697 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 10 selfloop transitions, 19 changer transitions 0/46 dead transitions. [2021-06-11 16:23:34,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 320 flow [2021-06-11 16:23:34,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:23:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:23:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 780 transitions. [2021-06-11 16:23:34,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8016443987667009 [2021-06-11 16:23:34,700 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 780 transitions. [2021-06-11 16:23:34,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 780 transitions. [2021-06-11 16:23:34,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 780 transitions. [2021-06-11 16:23:34,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 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 16:23:34,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 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 16:23:34,703 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 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 16:23:34,703 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 186 flow. Second operand 7 states and 780 transitions. [2021-06-11 16:23:34,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 320 flow [2021-06-11 16:23:34,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:23:34,705 INFO L241 Difference]: Finished difference. Result has 53 places, 42 transitions, 315 flow [2021-06-11 16:23:34,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=315, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2021-06-11 16:23:34,705 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 20 predicate places. [2021-06-11 16:23:34,705 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 42 transitions, 315 flow [2021-06-11 16:23:34,706 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 42 transitions, 315 flow [2021-06-11 16:23:34,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 42 transitions, 315 flow [2021-06-11 16:23:34,723 INFO L129 PetriNetUnfolder]: 133/265 cut-off events. [2021-06-11 16:23:34,723 INFO L130 PetriNetUnfolder]: For 1387/1625 co-relation queries the response was YES. [2021-06-11 16:23:34,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1310 conditions, 265 events. 133/265 cut-off events. For 1387/1625 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1383 event pairs, 29 based on Foata normal form. 7/254 useless extension candidates. Maximal degree in co-relation 1291. Up to 207 conditions per place. [2021-06-11 16:23:34,725 INFO L151 LiptonReduction]: Number of co-enabled transitions 294 [2021-06-11 16:23:34,728 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:23:34,728 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 16:23:34,728 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 315 flow [2021-06-11 16:23:34,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 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 16:23:34,729 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,729 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:34,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:23:34,729 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,729 INFO L82 PathProgramCache]: Analyzing trace with hash -852097724, now seen corresponding path program 1 times [2021-06-11 16:23:34,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70366458] [2021-06-11 16:23:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:23:34,759 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 16:23:34,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70366458] [2021-06-11 16:23:34,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:23:34,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207098603] [2021-06-11 16:23:34,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:23:34,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:23:34,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:23:34,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 139 [2021-06-11 16:23:34,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 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 16:23:34,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 139 [2021-06-11 16:23:34,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,845 INFO L129 PetriNetUnfolder]: 121/265 cut-off events. [2021-06-11 16:23:34,845 INFO L130 PetriNetUnfolder]: For 2617/4571 co-relation queries the response was YES. [2021-06-11 16:23:34,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 265 events. 121/265 cut-off events. For 2617/4571 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1317 event pairs, 6 based on Foata normal form. 157/396 useless extension candidates. Maximal degree in co-relation 1467. Up to 225 conditions per place. [2021-06-11 16:23:34,847 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 6 selfloop transitions, 28 changer transitions 4/55 dead transitions. [2021-06-11 16:23:34,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 517 flow [2021-06-11 16:23:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 16:23:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 16:23:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1003 transitions. [2021-06-11 16:23:34,849 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8017585931254996 [2021-06-11 16:23:34,849 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1003 transitions. [2021-06-11 16:23:34,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1003 transitions. [2021-06-11 16:23:34,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1003 transitions. [2021-06-11 16:23:34,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.44444444444444) internal successors, (1003), 9 states have internal predecessors, (1003), 0 states have call successors, (0), 0 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 16:23:34,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 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 16:23:34,853 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 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 16:23:34,853 INFO L185 Difference]: Start difference. First operand has 53 places, 42 transitions, 315 flow. Second operand 9 states and 1003 transitions. [2021-06-11 16:23:34,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 517 flow [2021-06-11 16:23:34,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 55 transitions, 467 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-06-11 16:23:34,856 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 443 flow [2021-06-11 16:23:34,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=443, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-06-11 16:23:34,857 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2021-06-11 16:23:34,857 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 443 flow [2021-06-11 16:23:34,857 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 443 flow [2021-06-11 16:23:34,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 443 flow [2021-06-11 16:23:34,871 INFO L129 PetriNetUnfolder]: 98/221 cut-off events. [2021-06-11 16:23:34,871 INFO L130 PetriNetUnfolder]: For 1633/1748 co-relation queries the response was YES. [2021-06-11 16:23:34,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 221 events. 98/221 cut-off events. For 1633/1748 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1145 event pairs, 5 based on Foata normal form. 4/211 useless extension candidates. Maximal degree in co-relation 1147. Up to 136 conditions per place. [2021-06-11 16:23:34,873 INFO L151 LiptonReduction]: Number of co-enabled transitions 326 [2021-06-11 16:23:34,876 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:23:34,876 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 16:23:34,877 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 443 flow [2021-06-11 16:23:34,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 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 16:23:34,877 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,877 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 16:23:34,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 16:23:34,878 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1762684655, now seen corresponding path program 1 times [2021-06-11 16:23:34,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402277646] [2021-06-11 16:23:34,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:34,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:34,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:34,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:34,896 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:23:34,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:23:34,902 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 16:23:34,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402277646] [2021-06-11 16:23:34,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:34,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:23:34,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694761676] [2021-06-11 16:23:34,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:23:34,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:34,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:23:34,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:23:34,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2021-06-11 16:23:34,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 443 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 16:23:34,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:34,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2021-06-11 16:23:34,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:34,950 INFO L129 PetriNetUnfolder]: 173/383 cut-off events. [2021-06-11 16:23:34,950 INFO L130 PetriNetUnfolder]: For 3289/3690 co-relation queries the response was YES. [2021-06-11 16:23:34,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2035 conditions, 383 events. 173/383 cut-off events. For 3289/3690 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 2217 event pairs, 4 based on Foata normal form. 13/358 useless extension candidates. Maximal degree in co-relation 2011. Up to 241 conditions per place. [2021-06-11 16:23:34,953 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 5 selfloop transitions, 10 changer transitions 0/56 dead transitions. [2021-06-11 16:23:34,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 56 transitions, 504 flow [2021-06-11 16:23:34,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:23:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:23:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2021-06-11 16:23:34,954 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7683453237410072 [2021-06-11 16:23:34,954 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2021-06-11 16:23:34,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2021-06-11 16:23:34,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:34,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2021-06-11 16:23:34,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 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 16:23:34,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 16:23:34,956 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 16:23:34,956 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 443 flow. Second operand 5 states and 534 transitions. [2021-06-11 16:23:34,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 56 transitions, 504 flow [2021-06-11 16:23:34,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 407 flow, removed 34 selfloop flow, removed 4 redundant places. [2021-06-11 16:23:34,966 INFO L241 Difference]: Finished difference. Result has 63 places, 56 transitions, 419 flow [2021-06-11 16:23:34,966 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=419, PETRI_PLACES=63, PETRI_TRANSITIONS=56} [2021-06-11 16:23:34,966 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2021-06-11 16:23:34,966 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:34,966 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 56 transitions, 419 flow [2021-06-11 16:23:34,966 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 56 transitions, 419 flow [2021-06-11 16:23:34,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 56 transitions, 419 flow [2021-06-11 16:23:34,987 INFO L129 PetriNetUnfolder]: 155/340 cut-off events. [2021-06-11 16:23:34,987 INFO L130 PetriNetUnfolder]: For 1449/1499 co-relation queries the response was YES. [2021-06-11 16:23:34,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 340 events. 155/340 cut-off events. For 1449/1499 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 1954 event pairs, 3 based on Foata normal form. 4/315 useless extension candidates. Maximal degree in co-relation 1267. Up to 98 conditions per place. [2021-06-11 16:23:34,990 INFO L151 LiptonReduction]: Number of co-enabled transitions 434 [2021-06-11 16:23:34,993 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:23:34,994 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:34,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-06-11 16:23:34,994 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 56 transitions, 419 flow [2021-06-11 16:23:34,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 16:23:34,994 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:34,994 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 16:23:34,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 16:23:34,995 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:34,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:34,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1384692089, now seen corresponding path program 2 times [2021-06-11 16:23:34,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:34,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767934847] [2021-06-11 16:23:34,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:35,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:35,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:35,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:35,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:35,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:23:35,032 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 16:23:35,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767934847] [2021-06-11 16:23:35,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:35,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 16:23:35,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25315215] [2021-06-11 16:23:35,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 16:23:35,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:35,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 16:23:35,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-11 16:23:35,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 139 [2021-06-11 16:23:35,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 56 transitions, 419 flow. Second operand has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 0 states have call successors, (0), 0 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 16:23:35,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:35,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 139 [2021-06-11 16:23:35,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:35,141 INFO L129 PetriNetUnfolder]: 165/369 cut-off events. [2021-06-11 16:23:35,141 INFO L130 PetriNetUnfolder]: For 2046/2997 co-relation queries the response was YES. [2021-06-11 16:23:35,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 369 events. 165/369 cut-off events. For 2046/2997 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 2135 event pairs, 0 based on Foata normal form. 214/546 useless extension candidates. Maximal degree in co-relation 1632. Up to 110 conditions per place. [2021-06-11 16:23:35,143 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 2 selfloop transitions, 33 changer transitions 4/61 dead transitions. [2021-06-11 16:23:35,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 61 transitions, 553 flow [2021-06-11 16:23:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 16:23:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 16:23:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1218 transitions. [2021-06-11 16:23:35,146 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7965990843688685 [2021-06-11 16:23:35,146 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1218 transitions. [2021-06-11 16:23:35,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1218 transitions. [2021-06-11 16:23:35,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:35,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1218 transitions. [2021-06-11 16:23:35,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 110.72727272727273) internal successors, (1218), 11 states have internal predecessors, (1218), 0 states have call successors, (0), 0 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 16:23:35,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 0 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 16:23:35,150 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 0 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 16:23:35,150 INFO L185 Difference]: Start difference. First operand has 63 places, 56 transitions, 419 flow. Second operand 11 states and 1218 transitions. [2021-06-11 16:23:35,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 61 transitions, 553 flow [2021-06-11 16:23:35,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 61 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:23:35,156 INFO L241 Difference]: Finished difference. Result has 76 places, 57 transitions, 513 flow [2021-06-11 16:23:35,156 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=513, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2021-06-11 16:23:35,156 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 43 predicate places. [2021-06-11 16:23:35,156 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:35,156 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 57 transitions, 513 flow [2021-06-11 16:23:35,156 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 57 transitions, 513 flow [2021-06-11 16:23:35,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 57 transitions, 513 flow [2021-06-11 16:23:35,175 INFO L129 PetriNetUnfolder]: 142/319 cut-off events. [2021-06-11 16:23:35,175 INFO L130 PetriNetUnfolder]: For 1357/1470 co-relation queries the response was YES. [2021-06-11 16:23:35,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1442 conditions, 319 events. 142/319 cut-off events. For 1357/1470 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2017 event pairs, 0 based on Foata normal form. 4/294 useless extension candidates. Maximal degree in co-relation 1412. Up to 100 conditions per place. [2021-06-11 16:23:35,178 INFO L151 LiptonReduction]: Number of co-enabled transitions 434 [2021-06-11 16:23:35,182 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:23:35,182 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:35,183 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-06-11 16:23:35,183 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 57 transitions, 513 flow [2021-06-11 16:23:35,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 0 states have call successors, (0), 0 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 16:23:35,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:23:35,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:23:35,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 16:23:35,184 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:23:35,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:23:35,184 INFO L82 PathProgramCache]: Analyzing trace with hash -147390048, now seen corresponding path program 1 times [2021-06-11 16:23:35,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:23:35,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140978072] [2021-06-11 16:23:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:23:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:23:35,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:23:35,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:35,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:23:35,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:23:35,205 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 16:23:35,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140978072] [2021-06-11 16:23:35,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:23:35,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:23:35,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151796079] [2021-06-11 16:23:35,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:23:35,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:23:35,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:23:35,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:23:35,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2021-06-11 16:23:35,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 57 transitions, 513 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:35,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:23:35,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2021-06-11 16:23:35,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:23:35,259 INFO L129 PetriNetUnfolder]: 210/462 cut-off events. [2021-06-11 16:23:35,259 INFO L130 PetriNetUnfolder]: For 2075/2314 co-relation queries the response was YES. [2021-06-11 16:23:35,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 462 events. 210/462 cut-off events. For 2075/2314 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 2938 event pairs, 0 based on Foata normal form. 9/422 useless extension candidates. Maximal degree in co-relation 2054. Up to 150 conditions per place. [2021-06-11 16:23:35,262 INFO L132 encePairwiseOnDemand]: 136/139 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2021-06-11 16:23:35,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 58 transitions, 517 flow [2021-06-11 16:23:35,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:23:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:23:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-06-11 16:23:35,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8255395683453237 [2021-06-11 16:23:35,263 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-06-11 16:23:35,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-06-11 16:23:35,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:23:35,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-06-11 16:23:35,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:35,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 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 16:23:35,265 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 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 16:23:35,265 INFO L185 Difference]: Start difference. First operand has 75 places, 57 transitions, 513 flow. Second operand 4 states and 459 transitions. [2021-06-11 16:23:35,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 58 transitions, 517 flow [2021-06-11 16:23:35,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 58 transitions, 364 flow, removed 23 selfloop flow, removed 17 redundant places. [2021-06-11 16:23:35,272 INFO L241 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2021-06-11 16:23:35,272 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2021-06-11 16:23:35,273 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2021-06-11 16:23:35,273 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:23:35,273 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 0 transitions, 0 flow [2021-06-11 16:23:35,273 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 0 transitions, 0 flow [2021-06-11 16:23:35,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:23:35,273 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:23:35,273 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:23:35,273 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 16:23:35,273 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:23:35,273 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:23:35,273 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:23:35,274 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:23:35,275 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:23:35,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:23:35,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 16:23:35,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:23:35 BasicIcfg [2021-06-11 16:23:35,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:23:35,278 INFO L168 Benchmark]: Toolchain (without parser) took 5336.19 ms. Allocated memory was 383.8 MB in the beginning and 465.6 MB in the end (delta: 81.8 MB). Free memory was 346.3 MB in the beginning and 429.5 MB in the end (delta: -83.2 MB). Peak memory consumption was 726.4 kB. Max. memory is 16.0 GB. [2021-06-11 16:23:35,278 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 383.8 MB. Free memory was 364.3 MB in the beginning and 364.2 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:23:35,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.10 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 346.2 MB in the end (delta: 13.9 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:23:35,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.66 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 344.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:23:35,280 INFO L168 Benchmark]: Boogie Preprocessor took 26.90 ms. Allocated memory is still 383.8 MB. Free memory was 344.1 MB in the beginning and 342.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:23:35,281 INFO L168 Benchmark]: RCFGBuilder took 368.86 ms. Allocated memory is still 383.8 MB. Free memory was 342.0 MB in the beginning and 317.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:23:35,281 INFO L168 Benchmark]: TraceAbstraction took 4483.37 ms. Allocated memory was 383.8 MB in the beginning and 465.6 MB in the end (delta: 81.8 MB). Free memory was 316.8 MB in the beginning and 429.5 MB in the end (delta: -112.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:23:35,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 383.8 MB. Free memory was 364.3 MB in the beginning and 364.2 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 392.10 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 346.2 MB in the end (delta: 13.9 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 43.66 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 344.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.90 ms. Allocated memory is still 383.8 MB. Free memory was 344.1 MB in the beginning and 342.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 368.86 ms. Allocated memory is still 383.8 MB. Free memory was 342.0 MB in the beginning and 317.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4483.37 ms. Allocated memory was 383.8 MB in the beginning and 465.6 MB in the end (delta: 81.8 MB). Free memory was 316.8 MB in the beginning and 429.5 MB in the end (delta: -112.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2808.3ms, 81 PlacesBefore, 33 PlacesAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 52 TotalNumberOfCompositions, 2091 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1288, positive: 1208, positive conditional: 1208, positive unconditional: 0, negative: 80, negative conditional: 80, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1288, positive: 1208, positive conditional: 0, positive unconditional: 1208, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1288, positive: 1208, positive conditional: 0, positive unconditional: 1208, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 974, positive: 935, positive conditional: 0, positive unconditional: 935, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 974, positive: 911, positive conditional: 0, positive unconditional: 911, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 204, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1288, positive: 273, positive conditional: 0, positive unconditional: 273, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 974, unknown conditional: 0, unknown unconditional: 974] , Statistics on independence cache: Total cache size (in pairs): 974, Positive cache size: 935, Positive conditional cache size: 0, Positive unconditional cache size: 935, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7ms, 32 PlacesBefore, 32 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 120 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 38, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 937, Positive conditional cache size: 0, Positive unconditional cache size: 937, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3ms, 34 PlacesBefore, 34 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 120 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 937, Positive conditional cache size: 0, Positive unconditional cache size: 937, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.4ms, 39 PlacesBefore, 39 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 66 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 22, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 978, Positive cache size: 939, Positive conditional cache size: 0, Positive unconditional cache size: 939, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3ms, 41 PlacesBefore, 41 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 66 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 978, Positive cache size: 939, Positive conditional cache size: 0, Positive unconditional cache size: 939, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 44 PlacesBefore, 44 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9ms, 43 PlacesBefore, 43 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 30 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.3ms, 45 PlacesBefore, 45 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 214 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): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.3ms, 53 PlacesBefore, 53 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 294 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): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4ms, 61 PlacesBefore, 61 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 326 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): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.1ms, 63 PlacesBefore, 63 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 434 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): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.0ms, 76 PlacesBefore, 75 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 434 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): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 60 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): 980, Positive cache size: 941, Positive conditional cache size: 0, Positive unconditional cache size: 941, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, 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, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4399.1ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 719.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2868.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 52 SDtfs, 41 SDslu, 29 SDs, 0 SdLazy, 212 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 150.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 166.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=513occurred in iteration=11, InterpolantAutomatonStates: 63, 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: 22.8ms SsaConstructionTime, 121.1ms SatisfiabilityAnalysisTime, 343.6ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...