/usr/bin/java -Xmx8000000000 -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/weaver/chl-array-int-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:13:24,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:13:24,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:13:24,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:13:24,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:13:24,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:13:24,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:13:24,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:13:24,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:13:24,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:13:24,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:13:24,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:13:24,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:13:24,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:13:24,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:13:24,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:13:24,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:13:24,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:13:24,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:13:24,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:13:24,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:13:24,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:13:24,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:13:24,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:13:24,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:13:24,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:13:24,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:13:24,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:13:24,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:13:24,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:13:24,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:13:24,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:13:24,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:13:24,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:13:24,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:13:24,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:13:24,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:13:24,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:13:24,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:13:24,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:13:24,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:13:24,191 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 [2022-12-06 07:13:24,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:13:24,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:13:24,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:13:24,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:13:24,229 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:13:24,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:13:24,230 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:13:24,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:13:24,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:13:24,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:13:24,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:13:24,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:13:24,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:13:24,231 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:13:24,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:13:24,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:13:24,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:13:24,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:13:24,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:13:24,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:13:24,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:13:24,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:13:24,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:13:24,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:13:24,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:13:24,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:13:24,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:13:24,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:13:24,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:13:24,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:13:24,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:13:24,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:13:24,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:13:24,553 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:13:24,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2022-12-06 07:13:25,522 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:13:25,765 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:13:25,766 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2022-12-06 07:13:25,789 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8cc5093/b2517a7deef148afb38fab0afb82aa55/FLAGcd023b311 [2022-12-06 07:13:25,800 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8cc5093/b2517a7deef148afb38fab0afb82aa55 [2022-12-06 07:13:25,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:13:25,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:13:25,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:13:25,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:13:25,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:13:25,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:13:25" (1/1) ... [2022-12-06 07:13:25,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72775d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:25, skipping insertion in model container [2022-12-06 07:13:25,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:13:25" (1/1) ... [2022-12-06 07:13:25,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:13:25,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:13:25,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-12-06 07:13:25,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:13:26,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:13:26,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-12-06 07:13:26,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:13:26,043 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:13:26,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26 WrapperNode [2022-12-06 07:13:26,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:13:26,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:13:26,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:13:26,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:13:26,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,102 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 13, calls inlined = 21, statements flattened = 277 [2022-12-06 07:13:26,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:13:26,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:13:26,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:13:26,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:13:26,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,126 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:13:26,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:13:26,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:13:26,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:13:26,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (1/1) ... [2022-12-06 07:13:26,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:13:26,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:13:26,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 07:13:26,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 07:13:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:13:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:13:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:13:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 07:13:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 07:13:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:13:26,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:13:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:13:26,203 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 07:13:26,282 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:13:26,283 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:13:26,643 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:13:26,652 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:13:26,652 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-06 07:13:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:13:26 BoogieIcfgContainer [2022-12-06 07:13:26,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:13:26,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:13:26,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:13:26,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:13:26,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:13:25" (1/3) ... [2022-12-06 07:13:26,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed1af19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:13:26, skipping insertion in model container [2022-12-06 07:13:26,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:13:26" (2/3) ... [2022-12-06 07:13:26,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed1af19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:13:26, skipping insertion in model container [2022-12-06 07:13:26,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:13:26" (3/3) ... [2022-12-06 07:13:26,664 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2022-12-06 07:13:26,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:13:26,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:13:26,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:13:26,762 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 07:13:26,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 312 transitions, 648 flow [2022-12-06 07:13:26,910 INFO L130 PetriNetUnfolder]: 28/309 cut-off events. [2022-12-06 07:13:26,911 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 07:13:26,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 309 events. 28/309 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 508 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 239. Up to 3 conditions per place. [2022-12-06 07:13:26,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 312 transitions, 648 flow [2022-12-06 07:13:26,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 299 transitions, 616 flow [2022-12-06 07:13:26,926 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:26,942 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 299 transitions, 616 flow [2022-12-06 07:13:26,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 299 transitions, 616 flow [2022-12-06 07:13:27,004 INFO L130 PetriNetUnfolder]: 28/299 cut-off events. [2022-12-06 07:13:27,004 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 07:13:27,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 299 events. 28/299 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 508 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 239. Up to 3 conditions per place. [2022-12-06 07:13:27,081 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 299 transitions, 616 flow [2022-12-06 07:13:27,081 INFO L188 LiptonReduction]: Number of co-enabled transitions 14784 [2022-12-06 07:13:36,227 INFO L203 LiptonReduction]: Total number of compositions: 263 [2022-12-06 07:13:36,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:13:36,246 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27377927, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:13:36,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 07:13:36,252 INFO L130 PetriNetUnfolder]: 8/35 cut-off events. [2022-12-06 07:13:36,253 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 07:13:36,253 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:36,253 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:36,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:36,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:36,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1970597914, now seen corresponding path program 1 times [2022-12-06 07:13:36,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:36,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917252057] [2022-12-06 07:13:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:36,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:36,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:36,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917252057] [2022-12-06 07:13:36,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917252057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:36,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:36,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:13:36,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945798908] [2022-12-06 07:13:36,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:36,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:13:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:36,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:13:36,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 07:13:36,858 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-06 07:13:36,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:36,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:36,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-06 07:13:36,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:37,377 INFO L130 PetriNetUnfolder]: 2196/3223 cut-off events. [2022-12-06 07:13:37,378 INFO L131 PetriNetUnfolder]: For 225/225 co-relation queries the response was YES. [2022-12-06 07:13:37,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6642 conditions, 3223 events. 2196/3223 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 14585 event pairs, 842 based on Foata normal form. 2/2391 useless extension candidates. Maximal degree in co-relation 1869. Up to 851 conditions per place. [2022-12-06 07:13:37,396 INFO L137 encePairwiseOnDemand]: 28/36 looper letters, 130 selfloop transitions, 8 changer transitions 12/152 dead transitions. [2022-12-06 07:13:37,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 152 transitions, 694 flow [2022-12-06 07:13:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 07:13:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 07:13:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2022-12-06 07:13:37,408 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 07:13:37,409 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 90 flow. Second operand 8 states and 168 transitions. [2022-12-06 07:13:37,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 152 transitions, 694 flow [2022-12-06 07:13:37,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 152 transitions, 634 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 07:13:37,419 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 136 flow [2022-12-06 07:13:37,420 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2022-12-06 07:13:37,423 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2022-12-06 07:13:37,423 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:37,423 INFO L89 Accepts]: Start accepts. Operand has 43 places, 43 transitions, 136 flow [2022-12-06 07:13:37,426 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:37,426 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:37,427 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 43 transitions, 136 flow [2022-12-06 07:13:37,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 136 flow [2022-12-06 07:13:37,442 INFO L130 PetriNetUnfolder]: 19/114 cut-off events. [2022-12-06 07:13:37,442 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:13:37,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 114 events. 19/114 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 443 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 98. Up to 11 conditions per place. [2022-12-06 07:13:37,443 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 43 transitions, 136 flow [2022-12-06 07:13:37,443 INFO L188 LiptonReduction]: Number of co-enabled transitions 442 [2022-12-06 07:13:43,674 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:13:43,675 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6252 [2022-12-06 07:13:43,676 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 136 flow [2022-12-06 07:13:43,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:43,677 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:43,677 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:43,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:13:43,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1922003293, now seen corresponding path program 1 times [2022-12-06 07:13:43,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:43,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918352705] [2022-12-06 07:13:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:43,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:44,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:44,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918352705] [2022-12-06 07:13:44,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918352705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:44,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:44,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 07:13:44,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134972397] [2022-12-06 07:13:44,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:44,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 07:13:44,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 07:13:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-06 07:13:44,024 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 38 [2022-12-06 07:13:44,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 136 flow. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:44,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:44,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 38 [2022-12-06 07:13:44,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:44,598 INFO L130 PetriNetUnfolder]: 2774/4047 cut-off events. [2022-12-06 07:13:44,598 INFO L131 PetriNetUnfolder]: For 423/423 co-relation queries the response was YES. [2022-12-06 07:13:44,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8651 conditions, 4047 events. 2774/4047 cut-off events. For 423/423 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 19077 event pairs, 952 based on Foata normal form. 1/3025 useless extension candidates. Maximal degree in co-relation 6218. Up to 2193 conditions per place. [2022-12-06 07:13:44,611 INFO L137 encePairwiseOnDemand]: 26/38 looper letters, 73 selfloop transitions, 12 changer transitions 52/139 dead transitions. [2022-12-06 07:13:44,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 139 transitions, 652 flow [2022-12-06 07:13:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 07:13:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 07:13:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 157 transitions. [2022-12-06 07:13:44,615 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4131578947368421 [2022-12-06 07:13:44,615 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 136 flow. Second operand 10 states and 157 transitions. [2022-12-06 07:13:44,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 139 transitions, 652 flow [2022-12-06 07:13:44,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 139 transitions, 640 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-06 07:13:44,619 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 214 flow [2022-12-06 07:13:44,619 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=214, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2022-12-06 07:13:44,620 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 18 predicate places. [2022-12-06 07:13:44,620 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:44,620 INFO L89 Accepts]: Start accepts. Operand has 56 places, 50 transitions, 214 flow [2022-12-06 07:13:44,622 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:44,622 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:44,622 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 50 transitions, 214 flow [2022-12-06 07:13:44,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 214 flow [2022-12-06 07:13:44,648 INFO L130 PetriNetUnfolder]: 52/199 cut-off events. [2022-12-06 07:13:44,648 INFO L131 PetriNetUnfolder]: For 93/109 co-relation queries the response was YES. [2022-12-06 07:13:44,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 199 events. 52/199 cut-off events. For 93/109 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 931 event pairs, 3 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 335. Up to 31 conditions per place. [2022-12-06 07:13:44,650 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 50 transitions, 214 flow [2022-12-06 07:13:44,650 INFO L188 LiptonReduction]: Number of co-enabled transitions 460 [2022-12-06 07:13:44,909 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:13:44,910 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 290 [2022-12-06 07:13:44,910 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 208 flow [2022-12-06 07:13:44,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:44,910 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:44,910 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:44,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:13:44,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:44,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:44,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2043718843, now seen corresponding path program 1 times [2022-12-06 07:13:44,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:44,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504170638] [2022-12-06 07:13:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:44,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:45,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:45,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504170638] [2022-12-06 07:13:45,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504170638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:45,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:45,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 07:13:45,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123173982] [2022-12-06 07:13:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:45,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 07:13:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 07:13:45,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:13:45,111 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 39 [2022-12-06 07:13:45,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:45,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:45,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 39 [2022-12-06 07:13:45,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:45,632 INFO L130 PetriNetUnfolder]: 2912/4254 cut-off events. [2022-12-06 07:13:45,632 INFO L131 PetriNetUnfolder]: For 4641/4641 co-relation queries the response was YES. [2022-12-06 07:13:45,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11520 conditions, 4254 events. 2912/4254 cut-off events. For 4641/4641 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 20103 event pairs, 1473 based on Foata normal form. 1/3452 useless extension candidates. Maximal degree in co-relation 10569. Up to 2004 conditions per place. [2022-12-06 07:13:45,650 INFO L137 encePairwiseOnDemand]: 31/39 looper letters, 116 selfloop transitions, 8 changer transitions 5/131 dead transitions. [2022-12-06 07:13:45,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 131 transitions, 763 flow [2022-12-06 07:13:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:13:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:13:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2022-12-06 07:13:45,652 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2022-12-06 07:13:45,652 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 208 flow. Second operand 5 states and 126 transitions. [2022-12-06 07:13:45,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 131 transitions, 763 flow [2022-12-06 07:13:45,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 131 transitions, 692 flow, removed 30 selfloop flow, removed 6 redundant places. [2022-12-06 07:13:45,676 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 243 flow [2022-12-06 07:13:45,676 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=243, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2022-12-06 07:13:45,677 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2022-12-06 07:13:45,677 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:45,677 INFO L89 Accepts]: Start accepts. Operand has 53 places, 54 transitions, 243 flow [2022-12-06 07:13:45,678 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:45,678 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:45,678 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 54 transitions, 243 flow [2022-12-06 07:13:45,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 54 transitions, 243 flow [2022-12-06 07:13:45,694 INFO L130 PetriNetUnfolder]: 67/271 cut-off events. [2022-12-06 07:13:45,694 INFO L131 PetriNetUnfolder]: For 90/102 co-relation queries the response was YES. [2022-12-06 07:13:45,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 271 events. 67/271 cut-off events. For 90/102 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1451 event pairs, 4 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 356. Up to 39 conditions per place. [2022-12-06 07:13:45,696 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 54 transitions, 243 flow [2022-12-06 07:13:45,696 INFO L188 LiptonReduction]: Number of co-enabled transitions 522 [2022-12-06 07:13:45,698 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:13:45,699 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-06 07:13:45,699 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 243 flow [2022-12-06 07:13:45,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:45,699 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:45,699 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:45,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 07:13:45,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash -465349558, now seen corresponding path program 1 times [2022-12-06 07:13:45,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:45,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147922158] [2022-12-06 07:13:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:45,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147922158] [2022-12-06 07:13:45,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147922158] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:13:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045094630] [2022-12-06 07:13:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:45,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:13:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:13:45,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:13:45,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 07:13:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:45,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-06 07:13:45,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:13:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:46,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:13:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:46,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045094630] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 07:13:46,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 07:13:46,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2022-12-06 07:13:46,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308559091] [2022-12-06 07:13:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:46,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 07:13:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:46,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 07:13:46,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-06 07:13:46,127 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-06 07:13:46,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:46,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:46,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-06 07:13:46,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:46,860 INFO L130 PetriNetUnfolder]: 3733/5430 cut-off events. [2022-12-06 07:13:46,860 INFO L131 PetriNetUnfolder]: For 3774/3774 co-relation queries the response was YES. [2022-12-06 07:13:46,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13780 conditions, 5430 events. 3733/5430 cut-off events. For 3774/3774 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 26663 event pairs, 1091 based on Foata normal form. 0/4098 useless extension candidates. Maximal degree in co-relation 10553. Up to 1396 conditions per place. [2022-12-06 07:13:46,880 INFO L137 encePairwiseOnDemand]: 30/39 looper letters, 150 selfloop transitions, 14 changer transitions 8/173 dead transitions. [2022-12-06 07:13:46,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 173 transitions, 956 flow [2022-12-06 07:13:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 07:13:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 07:13:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2022-12-06 07:13:46,882 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2022-12-06 07:13:46,882 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 243 flow. Second operand 9 states and 171 transitions. [2022-12-06 07:13:46,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 173 transitions, 956 flow [2022-12-06 07:13:46,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 173 transitions, 952 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:13:46,888 INFO L231 Difference]: Finished difference. Result has 62 places, 63 transitions, 315 flow [2022-12-06 07:13:46,888 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=315, PETRI_PLACES=62, PETRI_TRANSITIONS=63} [2022-12-06 07:13:46,889 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 24 predicate places. [2022-12-06 07:13:46,890 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:46,890 INFO L89 Accepts]: Start accepts. Operand has 62 places, 63 transitions, 315 flow [2022-12-06 07:13:46,891 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:46,891 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:46,891 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 63 transitions, 315 flow [2022-12-06 07:13:46,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 63 transitions, 315 flow [2022-12-06 07:13:46,908 INFO L130 PetriNetUnfolder]: 65/289 cut-off events. [2022-12-06 07:13:46,908 INFO L131 PetriNetUnfolder]: For 122/134 co-relation queries the response was YES. [2022-12-06 07:13:46,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 289 events. 65/289 cut-off events. For 122/134 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1624 event pairs, 4 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 397. Up to 39 conditions per place. [2022-12-06 07:13:46,911 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 63 transitions, 315 flow [2022-12-06 07:13:46,911 INFO L188 LiptonReduction]: Number of co-enabled transitions 694 [2022-12-06 07:13:46,923 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:13:46,926 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 36 [2022-12-06 07:13:46,926 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 315 flow [2022-12-06 07:13:46,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:46,926 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:46,926 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:46,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 07:13:47,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:13:47,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:47,133 INFO L85 PathProgramCache]: Analyzing trace with hash 181479627, now seen corresponding path program 1 times [2022-12-06 07:13:47,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:47,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455485498] [2022-12-06 07:13:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:47,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:47,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:47,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455485498] [2022-12-06 07:13:47,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455485498] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:47,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:47,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:13:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676468054] [2022-12-06 07:13:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:47,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:13:47,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:47,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:13:47,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:13:47,198 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-06 07:13:47,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 63 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:47,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:47,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-06 07:13:47,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:47,583 INFO L130 PetriNetUnfolder]: 2665/3960 cut-off events. [2022-12-06 07:13:47,583 INFO L131 PetriNetUnfolder]: For 3883/3883 co-relation queries the response was YES. [2022-12-06 07:13:47,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10724 conditions, 3960 events. 2665/3960 cut-off events. For 3883/3883 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 18387 event pairs, 1646 based on Foata normal form. 84/3328 useless extension candidates. Maximal degree in co-relation 9301. Up to 2842 conditions per place. [2022-12-06 07:13:47,610 INFO L137 encePairwiseOnDemand]: 35/39 looper letters, 49 selfloop transitions, 0 changer transitions 46/96 dead transitions. [2022-12-06 07:13:47,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 96 transitions, 601 flow [2022-12-06 07:13:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:13:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:13:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2022-12-06 07:13:47,611 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5256410256410257 [2022-12-06 07:13:47,611 INFO L175 Difference]: Start difference. First operand has 62 places, 63 transitions, 315 flow. Second operand 4 states and 82 transitions. [2022-12-06 07:13:47,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 96 transitions, 601 flow [2022-12-06 07:13:47,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 96 transitions, 592 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-06 07:13:47,617 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 240 flow [2022-12-06 07:13:47,617 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2022-12-06 07:13:47,619 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2022-12-06 07:13:47,619 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:47,619 INFO L89 Accepts]: Start accepts. Operand has 61 places, 50 transitions, 240 flow [2022-12-06 07:13:47,621 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:47,621 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:47,621 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 50 transitions, 240 flow [2022-12-06 07:13:47,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 50 transitions, 240 flow [2022-12-06 07:13:47,634 INFO L130 PetriNetUnfolder]: 32/154 cut-off events. [2022-12-06 07:13:47,634 INFO L131 PetriNetUnfolder]: For 86/92 co-relation queries the response was YES. [2022-12-06 07:13:47,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 154 events. 32/154 cut-off events. For 86/92 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 686 event pairs, 2 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 271. Up to 25 conditions per place. [2022-12-06 07:13:47,636 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 50 transitions, 240 flow [2022-12-06 07:13:47,637 INFO L188 LiptonReduction]: Number of co-enabled transitions 534 [2022-12-06 07:13:48,591 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:13:48,592 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 973 [2022-12-06 07:13:48,592 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 242 flow [2022-12-06 07:13:48,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:48,592 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:48,592 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:48,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 07:13:48,593 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash 3328616, now seen corresponding path program 1 times [2022-12-06 07:13:48,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:48,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436303171] [2022-12-06 07:13:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:48,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:13:48,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:48,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436303171] [2022-12-06 07:13:48,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436303171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:48,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:48,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 07:13:48,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097452989] [2022-12-06 07:13:48,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:48,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 07:13:48,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:48,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 07:13:48,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:13:48,764 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 38 [2022-12-06 07:13:48,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:48,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:48,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 38 [2022-12-06 07:13:48,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:49,160 INFO L130 PetriNetUnfolder]: 2841/4110 cut-off events. [2022-12-06 07:13:49,160 INFO L131 PetriNetUnfolder]: For 3926/3926 co-relation queries the response was YES. [2022-12-06 07:13:49,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11014 conditions, 4110 events. 2841/4110 cut-off events. For 3926/3926 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 18571 event pairs, 1416 based on Foata normal form. 0/3458 useless extension candidates. Maximal degree in co-relation 10971. Up to 1478 conditions per place. [2022-12-06 07:13:49,175 INFO L137 encePairwiseOnDemand]: 33/38 looper letters, 91 selfloop transitions, 5 changer transitions 2/99 dead transitions. [2022-12-06 07:13:49,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 99 transitions, 595 flow [2022-12-06 07:13:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:13:49,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:13:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 96 transitions. [2022-12-06 07:13:49,176 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5052631578947369 [2022-12-06 07:13:49,176 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 242 flow. Second operand 5 states and 96 transitions. [2022-12-06 07:13:49,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 99 transitions, 595 flow [2022-12-06 07:13:49,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 99 transitions, 540 flow, removed 21 selfloop flow, removed 6 redundant places. [2022-12-06 07:13:49,180 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 214 flow [2022-12-06 07:13:49,181 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2022-12-06 07:13:49,181 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2022-12-06 07:13:49,181 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:49,181 INFO L89 Accepts]: Start accepts. Operand has 53 places, 50 transitions, 214 flow [2022-12-06 07:13:49,182 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:49,182 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:49,182 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 50 transitions, 214 flow [2022-12-06 07:13:49,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 50 transitions, 214 flow [2022-12-06 07:13:49,193 INFO L130 PetriNetUnfolder]: 31/176 cut-off events. [2022-12-06 07:13:49,193 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-06 07:13:49,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 176 events. 31/176 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 855 event pairs, 2 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 183. Up to 25 conditions per place. [2022-12-06 07:13:49,195 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 50 transitions, 214 flow [2022-12-06 07:13:49,195 INFO L188 LiptonReduction]: Number of co-enabled transitions 566 [2022-12-06 07:13:49,196 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:13:49,196 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-06 07:13:49,196 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 214 flow [2022-12-06 07:13:49,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:49,197 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:49,197 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:49,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 07:13:49,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:49,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash -594561098, now seen corresponding path program 1 times [2022-12-06 07:13:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:49,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302544507] [2022-12-06 07:13:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:49,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:49,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:49,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302544507] [2022-12-06 07:13:49,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302544507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:49,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:49,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 07:13:49,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468639917] [2022-12-06 07:13:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:49,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:13:49,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:49,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:13:49,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:13:49,247 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 07:13:49,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:49,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:49,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 07:13:49,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:49,534 INFO L130 PetriNetUnfolder]: 2217/3230 cut-off events. [2022-12-06 07:13:49,534 INFO L131 PetriNetUnfolder]: For 2702/2702 co-relation queries the response was YES. [2022-12-06 07:13:49,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8662 conditions, 3230 events. 2217/3230 cut-off events. For 2702/2702 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 14108 event pairs, 1379 based on Foata normal form. 60/3031 useless extension candidates. Maximal degree in co-relation 6994. Up to 2636 conditions per place. [2022-12-06 07:13:49,544 INFO L137 encePairwiseOnDemand]: 34/37 looper letters, 40 selfloop transitions, 0 changer transitions 42/83 dead transitions. [2022-12-06 07:13:49,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 83 transitions, 469 flow [2022-12-06 07:13:49,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:13:49,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:13:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2022-12-06 07:13:49,545 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5337837837837838 [2022-12-06 07:13:49,545 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 214 flow. Second operand 4 states and 79 transitions. [2022-12-06 07:13:49,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 83 transitions, 469 flow [2022-12-06 07:13:49,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 83 transitions, 453 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-06 07:13:49,551 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 149 flow [2022-12-06 07:13:49,551 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2022-12-06 07:13:49,551 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2022-12-06 07:13:49,551 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:49,552 INFO L89 Accepts]: Start accepts. Operand has 52 places, 41 transitions, 149 flow [2022-12-06 07:13:49,553 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:49,553 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:49,553 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 41 transitions, 149 flow [2022-12-06 07:13:49,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 41 transitions, 149 flow [2022-12-06 07:13:49,560 INFO L130 PetriNetUnfolder]: 18/99 cut-off events. [2022-12-06 07:13:49,561 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-06 07:13:49,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 99 events. 18/99 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 338 event pairs, 1 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 154. Up to 13 conditions per place. [2022-12-06 07:13:49,562 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 41 transitions, 149 flow [2022-12-06 07:13:49,562 INFO L188 LiptonReduction]: Number of co-enabled transitions 422 [2022-12-06 07:13:49,564 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:13:49,565 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-06 07:13:49,565 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 149 flow [2022-12-06 07:13:49,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:49,565 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:49,565 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:49,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 07:13:49,566 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1286425667, now seen corresponding path program 1 times [2022-12-06 07:13:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:49,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747589034] [2022-12-06 07:13:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:49,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:49,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:13:49,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:49,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747589034] [2022-12-06 07:13:49,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747589034] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:13:49,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702563854] [2022-12-06 07:13:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:49,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:13:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:13:49,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:13:49,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 07:13:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:49,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 07:13:49,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:13:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 07:13:49,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:13:49,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702563854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:49,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 07:13:49,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 8 [2022-12-06 07:13:49,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951426390] [2022-12-06 07:13:49,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:49,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:13:49,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:49,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:13:49,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-06 07:13:49,894 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-06 07:13:49,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:49,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:49,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-06 07:13:49,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:50,444 INFO L130 PetriNetUnfolder]: 4566/6737 cut-off events. [2022-12-06 07:13:50,444 INFO L131 PetriNetUnfolder]: For 5154/5154 co-relation queries the response was YES. [2022-12-06 07:13:50,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17700 conditions, 6737 events. 4566/6737 cut-off events. For 5154/5154 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 34800 event pairs, 2444 based on Foata normal form. 4/6201 useless extension candidates. Maximal degree in co-relation 17668. Up to 1997 conditions per place. [2022-12-06 07:13:50,470 INFO L137 encePairwiseOnDemand]: 27/36 looper letters, 146 selfloop transitions, 10 changer transitions 12/170 dead transitions. [2022-12-06 07:13:50,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 170 transitions, 930 flow [2022-12-06 07:13:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 07:13:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 07:13:50,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2022-12-06 07:13:50,471 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 07:13:50,471 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 149 flow. Second operand 8 states and 168 transitions. [2022-12-06 07:13:50,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 170 transitions, 930 flow [2022-12-06 07:13:50,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 170 transitions, 871 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-12-06 07:13:50,476 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 219 flow [2022-12-06 07:13:50,476 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=219, PETRI_PLACES=51, PETRI_TRANSITIONS=50} [2022-12-06 07:13:50,476 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2022-12-06 07:13:50,476 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:50,477 INFO L89 Accepts]: Start accepts. Operand has 51 places, 50 transitions, 219 flow [2022-12-06 07:13:50,477 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:50,477 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:50,477 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 50 transitions, 219 flow [2022-12-06 07:13:50,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 50 transitions, 219 flow [2022-12-06 07:13:50,493 INFO L130 PetriNetUnfolder]: 51/289 cut-off events. [2022-12-06 07:13:50,493 INFO L131 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2022-12-06 07:13:50,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 289 events. 51/289 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1722 event pairs, 3 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 297. Up to 37 conditions per place. [2022-12-06 07:13:50,503 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 50 transitions, 219 flow [2022-12-06 07:13:50,503 INFO L188 LiptonReduction]: Number of co-enabled transitions 520 [2022-12-06 07:13:53,546 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:13:53,548 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3072 [2022-12-06 07:13:53,548 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 216 flow [2022-12-06 07:13:53,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:53,548 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:53,549 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:53,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 07:13:53,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-06 07:13:53,754 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:53,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1137471446, now seen corresponding path program 1 times [2022-12-06 07:13:53,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:53,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990463631] [2022-12-06 07:13:53,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:53,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:13:53,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:53,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990463631] [2022-12-06 07:13:53,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990463631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:13:53,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:13:53,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 07:13:53,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158540206] [2022-12-06 07:13:53,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:13:53,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 07:13:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:13:53,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 07:13:53,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:13:53,921 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 37 [2022-12-06 07:13:53,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:53,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:13:53,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 37 [2022-12-06 07:13:53,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:13:55,175 INFO L130 PetriNetUnfolder]: 9430/14203 cut-off events. [2022-12-06 07:13:55,175 INFO L131 PetriNetUnfolder]: For 10152/10152 co-relation queries the response was YES. [2022-12-06 07:13:55,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36231 conditions, 14203 events. 9430/14203 cut-off events. For 10152/10152 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 87647 event pairs, 3111 based on Foata normal form. 4/13028 useless extension candidates. Maximal degree in co-relation 24122. Up to 5973 conditions per place. [2022-12-06 07:13:55,229 INFO L137 encePairwiseOnDemand]: 29/37 looper letters, 114 selfloop transitions, 9 changer transitions 4/129 dead transitions. [2022-12-06 07:13:55,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 129 transitions, 796 flow [2022-12-06 07:13:55,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 07:13:55,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 07:13:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2022-12-06 07:13:55,230 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4954954954954955 [2022-12-06 07:13:55,230 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 216 flow. Second operand 6 states and 110 transitions. [2022-12-06 07:13:55,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 129 transitions, 796 flow [2022-12-06 07:13:55,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 129 transitions, 788 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-06 07:13:55,235 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 274 flow [2022-12-06 07:13:55,236 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2022-12-06 07:13:55,236 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2022-12-06 07:13:55,236 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:13:55,236 INFO L89 Accepts]: Start accepts. Operand has 57 places, 54 transitions, 274 flow [2022-12-06 07:13:55,237 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:13:55,237 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:13:55,237 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 54 transitions, 274 flow [2022-12-06 07:13:55,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 274 flow [2022-12-06 07:13:55,267 INFO L130 PetriNetUnfolder]: 88/598 cut-off events. [2022-12-06 07:13:55,267 INFO L131 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2022-12-06 07:13:55,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 598 events. 88/598 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4789 event pairs, 6 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 426. Up to 73 conditions per place. [2022-12-06 07:13:55,272 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 54 transitions, 274 flow [2022-12-06 07:13:55,272 INFO L188 LiptonReduction]: Number of co-enabled transitions 596 [2022-12-06 07:13:55,274 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:13:55,275 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 39 [2022-12-06 07:13:55,275 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 274 flow [2022-12-06 07:13:55,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:13:55,275 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:13:55,275 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:13:55,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 07:13:55,275 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:13:55,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:13:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash -442845718, now seen corresponding path program 1 times [2022-12-06 07:13:55,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:13:55,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762969514] [2022-12-06 07:13:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:55,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:13:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:13:56,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762969514] [2022-12-06 07:13:56,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762969514] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:13:56,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308995086] [2022-12-06 07:13:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:13:56,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:13:56,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:13:56,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:13:56,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 07:13:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:13:56,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 59 conjunts are in the unsatisfiable core [2022-12-06 07:13:56,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:13:56,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 07:13:56,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:13:56,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:13:56,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:13:56,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:13:56,964 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 07:13:56,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2022-12-06 07:13:57,319 INFO L321 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2022-12-06 07:13:57,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 38 [2022-12-06 07:13:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:13:57,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:13:58,500 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:58,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 315 treesize of output 212 [2022-12-06 07:13:58,573 INFO L321 Elim1Store]: treesize reduction 4, result has 88.2 percent of original size [2022-12-06 07:13:58,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26937 treesize of output 25495 [2022-12-06 07:13:58,834 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:58,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25465 treesize of output 25410 [2022-12-06 07:13:59,018 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:59,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25385 treesize of output 25250 [2022-12-06 07:13:59,181 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:59,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25225 treesize of output 24978 [2022-12-06 07:13:59,393 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:59,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24969 treesize of output 22434 [2022-12-06 07:13:59,579 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:59,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22409 treesize of output 21122 [2022-12-06 07:13:59,769 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:13:59,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 21097 treesize of output 20466 Received shutdown request... [2022-12-06 07:27:35,041 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 07:27:35,041 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 07:27:35,048 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 07:27:35,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 07:27:35,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:27:35,249 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 28 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-12-06 07:27:35,250 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 07:27:35,250 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 07:27:35,250 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 07:27:35,251 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:27:35,253 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 07:27:35,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 07:27:35,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:27:35 BasicIcfg [2022-12-06 07:27:35,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 07:27:35,256 INFO L158 Benchmark]: Toolchain (without parser) took 849452.45ms. Allocated memory was 189.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 166.9MB in the beginning and 867.7MB in the end (delta: -700.8MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-12-06 07:27:35,256 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory was 166.2MB in the beginning and 166.1MB in the end (delta: 86.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:27:35,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.29ms. Allocated memory is still 189.8MB. Free memory was 166.4MB in the beginning and 154.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 07:27:35,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.29ms. Allocated memory is still 189.8MB. Free memory was 154.4MB in the beginning and 151.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:27:35,257 INFO L158 Benchmark]: Boogie Preprocessor took 26.47ms. Allocated memory is still 189.8MB. Free memory was 151.7MB in the beginning and 149.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:27:35,257 INFO L158 Benchmark]: RCFGBuilder took 526.94ms. Allocated memory is still 189.8MB. Free memory was 149.6MB in the beginning and 125.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 07:27:35,257 INFO L158 Benchmark]: TraceAbstraction took 848596.87ms. Allocated memory was 189.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 124.5MB in the beginning and 867.7MB in the end (delta: -743.2MB). Peak memory consumption was 980.1MB. Max. memory is 8.0GB. [2022-12-06 07:27:35,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory was 166.2MB in the beginning and 166.1MB in the end (delta: 86.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 240.29ms. Allocated memory is still 189.8MB. Free memory was 166.4MB in the beginning and 154.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.29ms. Allocated memory is still 189.8MB. Free memory was 154.4MB in the beginning and 151.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.47ms. Allocated memory is still 189.8MB. Free memory was 151.7MB in the beginning and 149.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 526.94ms. Allocated memory is still 189.8MB. Free memory was 149.6MB in the beginning and 125.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 848596.87ms. Allocated memory was 189.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 124.5MB in the beginning and 867.7MB in the end (delta: -743.2MB). Peak memory consumption was 980.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 281 PlacesBefore, 38 PlacesAfterwards, 299 TransitionsBefore, 36 TransitionsAfterwards, 14784 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 126 TrivialYvCompositions, 117 ConcurrentYvCompositions, 20 ChoiceCompositions, 263 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9967, independent: 9901, independent conditional: 9901, independent unconditional: 0, dependent: 66, dependent conditional: 66, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9967, independent: 9901, independent conditional: 0, independent unconditional: 9901, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9967, independent: 9901, independent conditional: 0, independent unconditional: 9901, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9967, independent: 9901, independent conditional: 0, independent unconditional: 9901, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8995, independent: 8953, independent conditional: 0, independent unconditional: 8953, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8995, independent: 8953, independent conditional: 0, independent unconditional: 8953, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9967, independent: 948, independent conditional: 0, independent unconditional: 948, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 8995, unknown conditional: 0, unknown unconditional: 8995] , Statistics on independence cache: Total cache size (in pairs): 17857, Positive cache size: 17815, Positive conditional cache size: 0, Positive unconditional cache size: 17815, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 43 PlacesBefore, 42 PlacesAfterwards, 43 TransitionsBefore, 42 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 332, independent: 290, independent conditional: 290, independent unconditional: 0, dependent: 42, dependent conditional: 42, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 332, independent: 290, independent conditional: 46, independent unconditional: 244, dependent: 42, dependent conditional: 6, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 332, independent: 290, independent conditional: 12, independent unconditional: 278, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 332, independent: 290, independent conditional: 12, independent unconditional: 278, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 108, independent: 94, independent conditional: 4, independent unconditional: 90, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 108, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 332, independent: 196, independent conditional: 8, independent unconditional: 188, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 108, unknown conditional: 4, unknown unconditional: 104] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 94, Positive conditional cache size: 4, Positive unconditional cache size: 90, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 40, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 53 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 49 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 474, independent: 432, independent conditional: 432, independent unconditional: 0, dependent: 42, dependent conditional: 42, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 474, independent: 432, independent conditional: 80, independent unconditional: 352, dependent: 42, dependent conditional: 6, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 474, independent: 432, independent conditional: 22, independent unconditional: 410, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 474, independent: 432, independent conditional: 22, independent unconditional: 410, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, independent: 38, independent conditional: 2, independent unconditional: 36, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 474, independent: 394, independent conditional: 20, independent unconditional: 374, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 38, unknown conditional: 2, unknown unconditional: 36] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 132, Positive conditional cache size: 6, Positive unconditional cache size: 126, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 64, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 53 PlacesBefore, 53 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 522 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 233, independent: 213, independent conditional: 213, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 233, independent: 213, independent conditional: 44, independent unconditional: 169, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 233, independent: 213, independent conditional: 9, independent unconditional: 204, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 233, independent: 213, independent conditional: 9, independent unconditional: 204, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 233, independent: 213, independent conditional: 9, independent unconditional: 204, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 132, Positive conditional cache size: 6, Positive unconditional cache size: 126, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 62 PlacesBefore, 62 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 694 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 302, independent: 281, independent conditional: 281, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 302, independent: 281, independent conditional: 143, independent unconditional: 138, dependent: 21, dependent conditional: 7, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 302, independent: 281, independent conditional: 111, independent unconditional: 170, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 302, independent: 281, independent conditional: 111, independent unconditional: 170, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 53, independent: 47, independent conditional: 26, independent unconditional: 21, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 53, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 302, independent: 234, independent conditional: 85, independent unconditional: 149, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 53, unknown conditional: 32, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 199, Positive cache size: 179, Positive conditional cache size: 32, Positive unconditional cache size: 147, Negative cache size: 20, Negative conditional cache size: 6, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 33, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 54 PlacesBefore, 54 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 534 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 296, independent: 264, independent conditional: 264, independent unconditional: 0, dependent: 32, dependent conditional: 32, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 296, independent: 264, independent conditional: 96, independent unconditional: 168, dependent: 32, dependent conditional: 8, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 296, independent: 264, independent conditional: 80, independent unconditional: 184, dependent: 32, dependent conditional: 8, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 296, independent: 264, independent conditional: 80, independent unconditional: 184, dependent: 32, dependent conditional: 8, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 296, independent: 257, independent conditional: 73, independent unconditional: 184, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 208, Positive cache size: 186, Positive conditional cache size: 39, Positive unconditional cache size: 147, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 52 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 566 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 180, independent: 163, independent conditional: 163, independent unconditional: 0, dependent: 17, dependent conditional: 17, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 180, independent: 163, independent conditional: 76, independent unconditional: 87, dependent: 17, dependent conditional: 4, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 180, independent: 163, independent conditional: 72, independent unconditional: 91, dependent: 17, dependent conditional: 4, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 180, independent: 163, independent conditional: 72, independent unconditional: 91, dependent: 17, dependent conditional: 4, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 180, independent: 162, independent conditional: 71, independent unconditional: 91, dependent: 17, dependent conditional: 4, dependent unconditional: 13, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 209, Positive cache size: 187, Positive conditional cache size: 40, Positive unconditional cache size: 147, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 422 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, independent: 62, independent conditional: 62, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 76, independent: 62, independent conditional: 14, independent unconditional: 48, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, independent: 62, independent conditional: 14, independent unconditional: 48, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, independent: 62, independent conditional: 14, independent unconditional: 48, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, independent: 62, independent conditional: 14, independent unconditional: 48, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 187, Positive conditional cache size: 40, Positive unconditional cache size: 147, Negative cache size: 23, Negative conditional cache size: 9, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 51 PlacesBefore, 50 PlacesAfterwards, 50 TransitionsBefore, 49 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 360, independent: 324, independent conditional: 324, independent unconditional: 0, dependent: 36, dependent conditional: 36, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 360, independent: 324, independent conditional: 120, independent unconditional: 204, dependent: 36, dependent conditional: 6, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 360, independent: 324, independent conditional: 72, independent unconditional: 252, dependent: 36, dependent conditional: 2, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 360, independent: 324, independent conditional: 72, independent unconditional: 252, dependent: 36, dependent conditional: 2, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 360, independent: 324, independent conditional: 72, independent unconditional: 252, dependent: 36, dependent conditional: 2, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 187, Positive conditional cache size: 40, Positive unconditional cache size: 147, Negative cache size: 23, Negative conditional cache size: 9, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 52, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 57 PlacesBefore, 57 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 596 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 256, independent: 236, independent conditional: 236, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 256, independent: 236, independent conditional: 108, independent unconditional: 128, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 256, independent: 236, independent conditional: 54, independent unconditional: 182, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 256, independent: 236, independent conditional: 54, independent unconditional: 182, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 256, independent: 236, independent conditional: 54, independent unconditional: 182, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 187, Positive conditional cache size: 40, Positive unconditional cache size: 147, Negative cache size: 23, Negative conditional cache size: 9, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 57, Maximal queried relation: 0 - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 28 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 28 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 28 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 28 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 408 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 848.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 900 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 900 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2090 IncrementalHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 3 mSDtfsCounter, 2090 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125 SizeOfPredicates, 15 NumberOfNonLiveVariables, 591 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 6/9 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown