/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-0612a5f-m [2022-09-20 20:39:21,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 20:39:21,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 20:39:21,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 20:39:21,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 20:39:21,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 20:39:21,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 20:39:21,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 20:39:21,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 20:39:21,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 20:39:21,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 20:39:21,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 20:39:21,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 20:39:21,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 20:39:21,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 20:39:21,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 20:39:21,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 20:39:21,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 20:39:21,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 20:39:21,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 20:39:21,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 20:39:21,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 20:39:21,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 20:39:21,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 20:39:21,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 20:39:21,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 20:39:21,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 20:39:21,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 20:39:21,224 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-NoLbe.epf [2022-09-20 20:39:21,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 20:39:21,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 20:39:21,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 20:39:21,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 20:39:21,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 20:39:21,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 20:39:21,249 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 20:39:21,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 20:39:21,249 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 20:39:21,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 20:39:21,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 20:39:21,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 20:39:21,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 20:39:21,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 20:39:21,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 20:39:21,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 20:39:21,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:39:21,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 20:39:21,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 20:39:21,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 20:39:21,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 20:39:21,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 20:39:21,255 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 20:39:21,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 20:39:21,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 20:39:21,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 20:39:21,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 20:39:21,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 20:39:21,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 20:39:21,499 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 20:39:21,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-20 20:39:21,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ad06a98/43e6f38f16eb426e923406d6bf5f91df/FLAGa02e8bce3 [2022-09-20 20:39:21,954 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 20:39:21,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-20 20:39:21,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ad06a98/43e6f38f16eb426e923406d6bf5f91df/FLAGa02e8bce3 [2022-09-20 20:39:22,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ad06a98/43e6f38f16eb426e923406d6bf5f91df [2022-09-20 20:39:22,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 20:39:22,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 20:39:22,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 20:39:22,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 20:39:22,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 20:39:22,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:22,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cf3d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22, skipping insertion in model container [2022-09-20 20:39:22,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:22,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 20:39:22,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 20:39:22,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-09-20 20:39:22,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:39:22,857 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 20:39:22,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-09-20 20:39:22,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:39:22,989 INFO L208 MainTranslator]: Completed translation [2022-09-20 20:39:22,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22 WrapperNode [2022-09-20 20:39:22,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 20:39:22,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 20:39:22,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 20:39:22,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 20:39:22,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,075 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 366 [2022-09-20 20:39:23,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 20:39:23,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 20:39:23,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 20:39:23,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 20:39:23,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 20:39:23,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 20:39:23,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 20:39:23,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 20:39:23,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (1/1) ... [2022-09-20 20:39:23,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:39:23,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 20:39:23,197 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) [2022-09-20 20:39:23,220 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 [2022-09-20 20:39:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 20:39:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 20:39:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 20:39:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 20:39:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 20:39:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 20:39:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 20:39:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 20:39:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 20:39:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 20:39:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 20:39:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 20:39:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 20:39:23,241 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 20:39:23,355 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 20:39:23,357 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 20:39:24,080 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 20:39:24,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 20:39:24,532 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 20:39:24,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:39:24 BoogieIcfgContainer [2022-09-20 20:39:24,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 20:39:24,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 20:39:24,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 20:39:24,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 20:39:24,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 08:39:22" (1/3) ... [2022-09-20 20:39:24,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd26b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:39:24, skipping insertion in model container [2022-09-20 20:39:24,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:39:22" (2/3) ... [2022-09-20 20:39:24,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd26b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:39:24, skipping insertion in model container [2022-09-20 20:39:24,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:39:24" (3/3) ... [2022-09-20 20:39:24,542 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-20 20:39:24,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 20:39:24,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-20 20:39:24,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 20:39:24,626 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 20:39:24,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 208 flow [2022-09-20 20:39:24,710 INFO L130 PetriNetUnfolder]: 2/97 cut-off events. [2022-09-20 20:39:24,710 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:39:24,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-09-20 20:39:24,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 99 transitions, 208 flow [2022-09-20 20:39:24,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 200 flow [2022-09-20 20:39:24,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 20:39:24,741 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=PETRI_NET, 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;@4ebe7bd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 20:39:24,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-09-20 20:39:24,762 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-09-20 20:39:24,762 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:39:24,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:24,763 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:24,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:24,769 INFO L85 PathProgramCache]: Analyzing trace with hash -491542144, now seen corresponding path program 1 times [2022-09-20 20:39:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:24,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44350770] [2022-09-20 20:39:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:25,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:25,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44350770] [2022-09-20 20:39:25,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44350770] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:25,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:25,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-20 20:39:25,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959794434] [2022-09-20 20:39:25,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:25,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 20:39:25,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:25,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 20:39:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 20:39:25,108 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 99 [2022-09-20 20:39:25,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-09-20 20:39:25,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:25,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 99 [2022-09-20 20:39:25,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:25,339 INFO L130 PetriNetUnfolder]: 60/468 cut-off events. [2022-09-20 20:39:25,340 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-20 20:39:25,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 468 events. 60/468 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2645 event pairs, 25 based on Foata normal form. 23/460 useless extension candidates. Maximal degree in co-relation 546. Up to 88 conditions per place. [2022-09-20 20:39:25,347 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 14 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2022-09-20 20:39:25,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 98 transitions, 234 flow [2022-09-20 20:39:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 20:39:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 20:39:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-09-20 20:39:25,360 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9191919191919192 [2022-09-20 20:39:25,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-09-20 20:39:25,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-09-20 20:39:25,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:25,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-09-20 20:39:25,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2022-09-20 20:39:25,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:25,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:25,375 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 200 flow. Second operand 3 states and 273 transitions. [2022-09-20 20:39:25,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 98 transitions, 234 flow [2022-09-20 20:39:25,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 20:39:25,381 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 194 flow [2022-09-20 20:39:25,382 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2022-09-20 20:39:25,385 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -2 predicate places. [2022-09-20 20:39:25,386 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 194 flow [2022-09-20 20:39:25,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-09-20 20:39:25,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:25,386 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:25,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 20:39:25,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:25,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:25,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1591079342, now seen corresponding path program 1 times [2022-09-20 20:39:25,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:25,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659915845] [2022-09-20 20:39:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:25,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:25,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:25,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659915845] [2022-09-20 20:39:25,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659915845] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:25,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:25,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 20:39:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526219637] [2022-09-20 20:39:25,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:25,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 20:39:25,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:25,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 20:39:25,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 20:39:25,585 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 99 [2022-09-20 20:39:25,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2022-09-20 20:39:25,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:25,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 99 [2022-09-20 20:39:25,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:26,025 INFO L130 PetriNetUnfolder]: 208/704 cut-off events. [2022-09-20 20:39:26,026 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-09-20 20:39:26,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 704 events. 208/704 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4206 event pairs, 38 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1082. Up to 149 conditions per place. [2022-09-20 20:39:26,033 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 46/134 dead transitions. [2022-09-20 20:39:26,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 134 transitions, 408 flow [2022-09-20 20:39:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 20:39:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 20:39:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2022-09-20 20:39:26,045 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8552188552188552 [2022-09-20 20:39:26,045 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2022-09-20 20:39:26,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2022-09-20 20:39:26,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:26,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2022-09-20 20:39:26,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.66666666666667) internal successors, (762), 9 states have internal predecessors, (762), 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) [2022-09-20 20:39:26,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 20:39:26,053 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 20:39:26,053 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 194 flow. Second operand 9 states and 762 transitions. [2022-09-20 20:39:26,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 134 transitions, 408 flow [2022-09-20 20:39:26,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 134 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 20:39:26,058 INFO L231 Difference]: Finished difference. Result has 113 places, 83 transitions, 190 flow [2022-09-20 20:39:26,058 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=113, PETRI_TRANSITIONS=83} [2022-09-20 20:39:26,060 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2022-09-20 20:39:26,060 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 83 transitions, 190 flow [2022-09-20 20:39:26,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2022-09-20 20:39:26,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:26,061 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:26,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 20:39:26,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:26,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1510729138, now seen corresponding path program 1 times [2022-09-20 20:39:26,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:26,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255402188] [2022-09-20 20:39:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:26,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:26,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255402188] [2022-09-20 20:39:26,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255402188] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:26,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:26,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 20:39:26,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706964207] [2022-09-20 20:39:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:26,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 20:39:26,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:26,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 20:39:26,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 20:39:26,374 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 99 [2022-09-20 20:39:26,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 83 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2022-09-20 20:39:26,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:26,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 99 [2022-09-20 20:39:26,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:26,650 INFO L130 PetriNetUnfolder]: 127/381 cut-off events. [2022-09-20 20:39:26,651 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-09-20 20:39:26,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 381 events. 127/381 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1566 event pairs, 36 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 699. Up to 120 conditions per place. [2022-09-20 20:39:26,654 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 25/112 dead transitions. [2022-09-20 20:39:26,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 112 transitions, 361 flow [2022-09-20 20:39:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 20:39:26,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 20:39:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2022-09-20 20:39:26,657 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-09-20 20:39:26,657 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2022-09-20 20:39:26,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2022-09-20 20:39:26,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:26,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2022-09-20 20:39:26,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 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) [2022-09-20 20:39:26,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 20:39:26,661 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 20:39:26,662 INFO L175 Difference]: Start difference. First operand has 113 places, 83 transitions, 190 flow. Second operand 9 states and 741 transitions. [2022-09-20 20:39:26,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 112 transitions, 361 flow [2022-09-20 20:39:26,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 327 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-20 20:39:26,669 INFO L231 Difference]: Finished difference. Result has 104 places, 83 transitions, 194 flow [2022-09-20 20:39:26,670 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=194, PETRI_PLACES=104, PETRI_TRANSITIONS=83} [2022-09-20 20:39:26,672 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-09-20 20:39:26,672 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 83 transitions, 194 flow [2022-09-20 20:39:26,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2022-09-20 20:39:26,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:26,673 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:26,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 20:39:26,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:26,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1028990539, now seen corresponding path program 1 times [2022-09-20 20:39:26,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:26,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144701844] [2022-09-20 20:39:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:27,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:27,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144701844] [2022-09-20 20:39:27,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144701844] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:27,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:27,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-09-20 20:39:27,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507177072] [2022-09-20 20:39:27,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:27,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-20 20:39:27,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:27,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-20 20:39:27,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-09-20 20:39:27,191 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-09-20 20:39:27,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 83 transitions, 194 flow. Second operand has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 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) [2022-09-20 20:39:27,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:27,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-09-20 20:39:27,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:27,672 INFO L130 PetriNetUnfolder]: 120/374 cut-off events. [2022-09-20 20:39:27,672 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-09-20 20:39:27,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 374 events. 120/374 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1515 event pairs, 16 based on Foata normal form. 7/358 useless extension candidates. Maximal degree in co-relation 691. Up to 136 conditions per place. [2022-09-20 20:39:27,676 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 22 selfloop transitions, 13 changer transitions 22/119 dead transitions. [2022-09-20 20:39:27,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 119 transitions, 404 flow [2022-09-20 20:39:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-20 20:39:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-09-20 20:39:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1081 transitions. [2022-09-20 20:39:27,680 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7799422799422799 [2022-09-20 20:39:27,680 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1081 transitions. [2022-09-20 20:39:27,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1081 transitions. [2022-09-20 20:39:27,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:27,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1081 transitions. [2022-09-20 20:39:27,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.21428571428571) internal successors, (1081), 14 states have internal predecessors, (1081), 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) [2022-09-20 20:39:27,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2022-09-20 20:39:27,688 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2022-09-20 20:39:27,688 INFO L175 Difference]: Start difference. First operand has 104 places, 83 transitions, 194 flow. Second operand 14 states and 1081 transitions. [2022-09-20 20:39:27,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 119 transitions, 404 flow [2022-09-20 20:39:27,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 119 transitions, 372 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-20 20:39:27,694 INFO L231 Difference]: Finished difference. Result has 110 places, 90 transitions, 262 flow [2022-09-20 20:39:27,695 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=262, PETRI_PLACES=110, PETRI_TRANSITIONS=90} [2022-09-20 20:39:27,696 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 8 predicate places. [2022-09-20 20:39:27,696 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 90 transitions, 262 flow [2022-09-20 20:39:27,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 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) [2022-09-20 20:39:27,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:27,698 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:27,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 20:39:27,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:27,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1474894337, now seen corresponding path program 2 times [2022-09-20 20:39:27,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:27,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646845422] [2022-09-20 20:39:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:28,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:28,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646845422] [2022-09-20 20:39:28,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646845422] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:28,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:28,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-20 20:39:28,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475650325] [2022-09-20 20:39:28,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:28,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-20 20:39:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:28,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-20 20:39:28,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-09-20 20:39:28,077 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-09-20 20:39:28,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 90 transitions, 262 flow. Second operand has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2022-09-20 20:39:28,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:28,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-09-20 20:39:28,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:28,612 INFO L130 PetriNetUnfolder]: 124/391 cut-off events. [2022-09-20 20:39:28,612 INFO L131 PetriNetUnfolder]: For 594/610 co-relation queries the response was YES. [2022-09-20 20:39:28,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 391 events. 124/391 cut-off events. For 594/610 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1583 event pairs, 23 based on Foata normal form. 14/378 useless extension candidates. Maximal degree in co-relation 1085. Up to 151 conditions per place. [2022-09-20 20:39:28,616 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 28 selfloop transitions, 17 changer transitions 22/128 dead transitions. [2022-09-20 20:39:28,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 128 transitions, 642 flow [2022-09-20 20:39:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 20:39:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 20:39:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1146 transitions. [2022-09-20 20:39:28,619 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7717171717171717 [2022-09-20 20:39:28,619 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1146 transitions. [2022-09-20 20:39:28,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1146 transitions. [2022-09-20 20:39:28,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:28,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1146 transitions. [2022-09-20 20:39:28,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.4) internal successors, (1146), 15 states have internal predecessors, (1146), 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) [2022-09-20 20:39:28,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 20:39:28,625 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 20:39:28,625 INFO L175 Difference]: Start difference. First operand has 110 places, 90 transitions, 262 flow. Second operand 15 states and 1146 transitions. [2022-09-20 20:39:28,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 128 transitions, 642 flow [2022-09-20 20:39:28,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 128 transitions, 623 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-09-20 20:39:28,630 INFO L231 Difference]: Finished difference. Result has 120 places, 98 transitions, 378 flow [2022-09-20 20:39:28,631 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=378, PETRI_PLACES=120, PETRI_TRANSITIONS=98} [2022-09-20 20:39:28,631 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 18 predicate places. [2022-09-20 20:39:28,632 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 98 transitions, 378 flow [2022-09-20 20:39:28,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2022-09-20 20:39:28,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:28,632 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:28,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 20:39:28,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:28,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1128229069, now seen corresponding path program 3 times [2022-09-20 20:39:28,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:28,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924984785] [2022-09-20 20:39:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:28,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:28,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:28,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924984785] [2022-09-20 20:39:28,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924984785] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:28,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:28,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 20:39:28,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986569438] [2022-09-20 20:39:28,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:28,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 20:39:28,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:28,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 20:39:28,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-20 20:39:28,944 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-09-20 20:39:28,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 98 transitions, 378 flow. Second operand has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-09-20 20:39:28,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:28,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-09-20 20:39:28,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:29,365 INFO L130 PetriNetUnfolder]: 134/410 cut-off events. [2022-09-20 20:39:29,365 INFO L131 PetriNetUnfolder]: For 2138/2196 co-relation queries the response was YES. [2022-09-20 20:39:29,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 410 events. 134/410 cut-off events. For 2138/2196 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1694 event pairs, 26 based on Foata normal form. 12/394 useless extension candidates. Maximal degree in co-relation 1584. Up to 175 conditions per place. [2022-09-20 20:39:29,369 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 39 selfloop transitions, 11 changer transitions 19/131 dead transitions. [2022-09-20 20:39:29,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 845 flow [2022-09-20 20:39:29,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 20:39:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 20:39:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1005 transitions. [2022-09-20 20:39:29,372 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7808857808857809 [2022-09-20 20:39:29,373 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1005 transitions. [2022-09-20 20:39:29,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1005 transitions. [2022-09-20 20:39:29,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:29,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1005 transitions. [2022-09-20 20:39:29,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.3076923076923) internal successors, (1005), 13 states have internal predecessors, (1005), 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) [2022-09-20 20:39:29,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 20:39:29,378 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 20:39:29,378 INFO L175 Difference]: Start difference. First operand has 120 places, 98 transitions, 378 flow. Second operand 13 states and 1005 transitions. [2022-09-20 20:39:29,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 845 flow [2022-09-20 20:39:29,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 131 transitions, 708 flow, removed 64 selfloop flow, removed 10 redundant places. [2022-09-20 20:39:29,385 INFO L231 Difference]: Finished difference. Result has 124 places, 103 transitions, 420 flow [2022-09-20 20:39:29,385 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=420, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2022-09-20 20:39:29,386 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 22 predicate places. [2022-09-20 20:39:29,386 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 420 flow [2022-09-20 20:39:29,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-09-20 20:39:29,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:29,387 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:29,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 20:39:29,387 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:29,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:29,387 INFO L85 PathProgramCache]: Analyzing trace with hash 504070605, now seen corresponding path program 4 times [2022-09-20 20:39:29,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:29,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532053529] [2022-09-20 20:39:29,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:29,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:29,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:29,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532053529] [2022-09-20 20:39:29,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532053529] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:29,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:29,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-20 20:39:29,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877701813] [2022-09-20 20:39:29,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:29,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-20 20:39:29,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:29,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-20 20:39:29,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-09-20 20:39:29,796 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 99 [2022-09-20 20:39:29,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 103 transitions, 420 flow. Second operand has 18 states, 18 states have (on average 67.27777777777777) internal successors, (1211), 18 states have internal predecessors, (1211), 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) [2022-09-20 20:39:29,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:29,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 99 [2022-09-20 20:39:29,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:30,907 INFO L130 PetriNetUnfolder]: 352/908 cut-off events. [2022-09-20 20:39:30,908 INFO L131 PetriNetUnfolder]: For 4034/4111 co-relation queries the response was YES. [2022-09-20 20:39:30,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3301 conditions, 908 events. 352/908 cut-off events. For 4034/4111 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5093 event pairs, 45 based on Foata normal form. 31/908 useless extension candidates. Maximal degree in co-relation 3222. Up to 279 conditions per place. [2022-09-20 20:39:30,916 INFO L137 encePairwiseOnDemand]: 81/99 looper letters, 68 selfloop transitions, 33 changer transitions 67/223 dead transitions. [2022-09-20 20:39:30,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 223 transitions, 1706 flow [2022-09-20 20:39:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-09-20 20:39:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-09-20 20:39:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2330 transitions. [2022-09-20 20:39:30,922 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7131925313743496 [2022-09-20 20:39:30,922 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2330 transitions. [2022-09-20 20:39:30,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2330 transitions. [2022-09-20 20:39:30,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:30,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2330 transitions. [2022-09-20 20:39:30,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 70.60606060606061) internal successors, (2330), 33 states have internal predecessors, (2330), 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) [2022-09-20 20:39:30,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 99.0) internal successors, (3366), 34 states have internal predecessors, (3366), 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) [2022-09-20 20:39:30,934 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 99.0) internal successors, (3366), 34 states have internal predecessors, (3366), 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) [2022-09-20 20:39:30,935 INFO L175 Difference]: Start difference. First operand has 124 places, 103 transitions, 420 flow. Second operand 33 states and 2330 transitions. [2022-09-20 20:39:30,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 223 transitions, 1706 flow [2022-09-20 20:39:30,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 223 transitions, 1509 flow, removed 92 selfloop flow, removed 9 redundant places. [2022-09-20 20:39:30,944 INFO L231 Difference]: Finished difference. Result has 165 places, 122 transitions, 720 flow [2022-09-20 20:39:30,945 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=720, PETRI_PLACES=165, PETRI_TRANSITIONS=122} [2022-09-20 20:39:30,945 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 63 predicate places. [2022-09-20 20:39:30,945 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 122 transitions, 720 flow [2022-09-20 20:39:30,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 67.27777777777777) internal successors, (1211), 18 states have internal predecessors, (1211), 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) [2022-09-20 20:39:30,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:30,946 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:30,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 20:39:30,946 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1558082475, now seen corresponding path program 5 times [2022-09-20 20:39:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:30,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619105343] [2022-09-20 20:39:30,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:30,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:31,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:31,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619105343] [2022-09-20 20:39:31,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619105343] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:31,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:31,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 20:39:31,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676751777] [2022-09-20 20:39:31,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:31,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 20:39:31,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:31,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 20:39:31,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-20 20:39:31,233 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-09-20 20:39:31,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 122 transitions, 720 flow. Second operand has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-09-20 20:39:31,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:31,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-09-20 20:39:31,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:31,691 INFO L130 PetriNetUnfolder]: 183/576 cut-off events. [2022-09-20 20:39:31,691 INFO L131 PetriNetUnfolder]: For 4071/4303 co-relation queries the response was YES. [2022-09-20 20:39:31,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2532 conditions, 576 events. 183/576 cut-off events. For 4071/4303 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2914 event pairs, 37 based on Foata normal form. 39/580 useless extension candidates. Maximal degree in co-relation 2433. Up to 206 conditions per place. [2022-09-20 20:39:31,697 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 34 selfloop transitions, 31 changer transitions 25/157 dead transitions. [2022-09-20 20:39:31,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 157 transitions, 1262 flow [2022-09-20 20:39:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 20:39:31,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 20:39:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1154 transitions. [2022-09-20 20:39:31,703 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7771043771043771 [2022-09-20 20:39:31,705 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1154 transitions. [2022-09-20 20:39:31,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1154 transitions. [2022-09-20 20:39:31,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:31,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1154 transitions. [2022-09-20 20:39:31,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.93333333333334) internal successors, (1154), 15 states have internal predecessors, (1154), 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) [2022-09-20 20:39:31,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 20:39:31,712 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 20:39:31,712 INFO L175 Difference]: Start difference. First operand has 165 places, 122 transitions, 720 flow. Second operand 15 states and 1154 transitions. [2022-09-20 20:39:31,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 157 transitions, 1262 flow [2022-09-20 20:39:31,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 157 transitions, 1127 flow, removed 61 selfloop flow, removed 21 redundant places. [2022-09-20 20:39:31,724 INFO L231 Difference]: Finished difference. Result has 147 places, 124 transitions, 762 flow [2022-09-20 20:39:31,724 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=762, PETRI_PLACES=147, PETRI_TRANSITIONS=124} [2022-09-20 20:39:31,725 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2022-09-20 20:39:31,725 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 124 transitions, 762 flow [2022-09-20 20:39:31,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-09-20 20:39:31,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:31,726 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:31,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 20:39:31,726 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:31,727 INFO L85 PathProgramCache]: Analyzing trace with hash 487450421, now seen corresponding path program 1 times [2022-09-20 20:39:31,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:31,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819953045] [2022-09-20 20:39:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:31,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:31,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819953045] [2022-09-20 20:39:31,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819953045] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:31,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:31,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 20:39:31,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129423771] [2022-09-20 20:39:31,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:31,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 20:39:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:31,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 20:39:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 20:39:31,869 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 99 [2022-09-20 20:39:31,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 124 transitions, 762 flow. Second operand has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:31,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:31,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 99 [2022-09-20 20:39:31,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:32,150 INFO L130 PetriNetUnfolder]: 176/603 cut-off events. [2022-09-20 20:39:32,150 INFO L131 PetriNetUnfolder]: For 3542/3938 co-relation queries the response was YES. [2022-09-20 20:39:32,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2705 conditions, 603 events. 176/603 cut-off events. For 3542/3938 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3403 event pairs, 60 based on Foata normal form. 57/620 useless extension candidates. Maximal degree in co-relation 2616. Up to 213 conditions per place. [2022-09-20 20:39:32,156 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 46 selfloop transitions, 11 changer transitions 28/155 dead transitions. [2022-09-20 20:39:32,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 155 transitions, 1264 flow [2022-09-20 20:39:32,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 20:39:32,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 20:39:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 565 transitions. [2022-09-20 20:39:32,158 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8152958152958153 [2022-09-20 20:39:32,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 565 transitions. [2022-09-20 20:39:32,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 565 transitions. [2022-09-20 20:39:32,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:32,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 565 transitions. [2022-09-20 20:39:32,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2022-09-20 20:39:32,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2022-09-20 20:39:32,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2022-09-20 20:39:32,161 INFO L175 Difference]: Start difference. First operand has 147 places, 124 transitions, 762 flow. Second operand 7 states and 565 transitions. [2022-09-20 20:39:32,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 155 transitions, 1264 flow [2022-09-20 20:39:32,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 155 transitions, 1167 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-09-20 20:39:32,174 INFO L231 Difference]: Finished difference. Result has 140 places, 127 transitions, 772 flow [2022-09-20 20:39:32,175 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=772, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2022-09-20 20:39:32,175 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 38 predicate places. [2022-09-20 20:39:32,175 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 772 flow [2022-09-20 20:39:32,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:32,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:32,176 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:32,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-20 20:39:32,176 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:32,177 INFO L85 PathProgramCache]: Analyzing trace with hash 342414929, now seen corresponding path program 2 times [2022-09-20 20:39:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799000595] [2022-09-20 20:39:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:32,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:32,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:32,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799000595] [2022-09-20 20:39:32,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799000595] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:32,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:32,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-20 20:39:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041128775] [2022-09-20 20:39:32,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:32,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-20 20:39:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:32,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-20 20:39:32,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-09-20 20:39:32,331 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2022-09-20 20:39:32,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 772 flow. Second operand has 9 states, 9 states have (on average 76.0) internal successors, (684), 9 states have internal predecessors, (684), 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) [2022-09-20 20:39:32,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:32,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2022-09-20 20:39:32,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:32,647 INFO L130 PetriNetUnfolder]: 127/478 cut-off events. [2022-09-20 20:39:32,647 INFO L131 PetriNetUnfolder]: For 2885/3320 co-relation queries the response was YES. [2022-09-20 20:39:32,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 478 events. 127/478 cut-off events. For 2885/3320 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2421 event pairs, 42 based on Foata normal form. 62/510 useless extension candidates. Maximal degree in co-relation 2025. Up to 168 conditions per place. [2022-09-20 20:39:32,652 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 33 selfloop transitions, 14 changer transitions 26/141 dead transitions. [2022-09-20 20:39:32,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 1066 flow [2022-09-20 20:39:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-20 20:39:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-20 20:39:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 632 transitions. [2022-09-20 20:39:32,653 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.797979797979798 [2022-09-20 20:39:32,653 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 632 transitions. [2022-09-20 20:39:32,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 632 transitions. [2022-09-20 20:39:32,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:32,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 632 transitions. [2022-09-20 20:39:32,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:32,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 99.0) internal successors, (891), 9 states have internal predecessors, (891), 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) [2022-09-20 20:39:32,656 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 99.0) internal successors, (891), 9 states have internal predecessors, (891), 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) [2022-09-20 20:39:32,656 INFO L175 Difference]: Start difference. First operand has 140 places, 127 transitions, 772 flow. Second operand 8 states and 632 transitions. [2022-09-20 20:39:32,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 1066 flow [2022-09-20 20:39:32,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 141 transitions, 1031 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-09-20 20:39:32,666 INFO L231 Difference]: Finished difference. Result has 142 places, 115 transitions, 637 flow [2022-09-20 20:39:32,666 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=637, PETRI_PLACES=142, PETRI_TRANSITIONS=115} [2022-09-20 20:39:32,667 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 40 predicate places. [2022-09-20 20:39:32,667 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 115 transitions, 637 flow [2022-09-20 20:39:32,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.0) internal successors, (684), 9 states have internal predecessors, (684), 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) [2022-09-20 20:39:32,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:32,668 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:32,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-20 20:39:32,668 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:32,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:32,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1534679057, now seen corresponding path program 3 times [2022-09-20 20:39:32,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:32,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954605453] [2022-09-20 20:39:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:32,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:33,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:33,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954605453] [2022-09-20 20:39:33,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954605453] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:33,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:33,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-20 20:39:33,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247282540] [2022-09-20 20:39:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:33,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-20 20:39:33,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:33,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-20 20:39:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-09-20 20:39:33,179 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 99 [2022-09-20 20:39:33,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 115 transitions, 637 flow. Second operand has 18 states, 18 states have (on average 68.38888888888889) internal successors, (1231), 18 states have internal predecessors, (1231), 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) [2022-09-20 20:39:33,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:33,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 99 [2022-09-20 20:39:33,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:33,679 INFO L130 PetriNetUnfolder]: 124/474 cut-off events. [2022-09-20 20:39:33,679 INFO L131 PetriNetUnfolder]: For 2637/3039 co-relation queries the response was YES. [2022-09-20 20:39:33,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 474 events. 124/474 cut-off events. For 2637/3039 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2473 event pairs, 28 based on Foata normal form. 37/487 useless extension candidates. Maximal degree in co-relation 1993. Up to 147 conditions per place. [2022-09-20 20:39:33,684 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 39 selfloop transitions, 13 changer transitions 36/148 dead transitions. [2022-09-20 20:39:33,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 148 transitions, 1142 flow [2022-09-20 20:39:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 20:39:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 20:39:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1063 transitions. [2022-09-20 20:39:33,686 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7158249158249158 [2022-09-20 20:39:33,686 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1063 transitions. [2022-09-20 20:39:33,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1063 transitions. [2022-09-20 20:39:33,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:33,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1063 transitions. [2022-09-20 20:39:33,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 70.86666666666666) internal successors, (1063), 15 states have internal predecessors, (1063), 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) [2022-09-20 20:39:33,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 20:39:33,691 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 20:39:33,691 INFO L175 Difference]: Start difference. First operand has 142 places, 115 transitions, 637 flow. Second operand 15 states and 1063 transitions. [2022-09-20 20:39:33,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 148 transitions, 1142 flow [2022-09-20 20:39:33,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 1073 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-09-20 20:39:33,700 INFO L231 Difference]: Finished difference. Result has 148 places, 108 transitions, 554 flow [2022-09-20 20:39:33,701 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=554, PETRI_PLACES=148, PETRI_TRANSITIONS=108} [2022-09-20 20:39:33,701 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 46 predicate places. [2022-09-20 20:39:33,701 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 108 transitions, 554 flow [2022-09-20 20:39:33,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 68.38888888888889) internal successors, (1231), 18 states have internal predecessors, (1231), 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) [2022-09-20 20:39:33,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:33,702 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:33,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-20 20:39:33,703 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:33,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:33,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1043340207, now seen corresponding path program 4 times [2022-09-20 20:39:33,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:33,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109511634] [2022-09-20 20:39:33,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:33,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:34,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:34,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109511634] [2022-09-20 20:39:34,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109511634] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:34,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:34,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-20 20:39:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607032599] [2022-09-20 20:39:34,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:34,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-20 20:39:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-20 20:39:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-09-20 20:39:34,098 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2022-09-20 20:39:34,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 108 transitions, 554 flow. Second operand has 16 states, 16 states have (on average 69.5) internal successors, (1112), 16 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:34,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:34,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2022-09-20 20:39:34,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:34,571 INFO L130 PetriNetUnfolder]: 83/341 cut-off events. [2022-09-20 20:39:34,571 INFO L131 PetriNetUnfolder]: For 1665/1733 co-relation queries the response was YES. [2022-09-20 20:39:34,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 341 events. 83/341 cut-off events. For 1665/1733 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1444 event pairs, 14 based on Foata normal form. 16/343 useless extension candidates. Maximal degree in co-relation 1317. Up to 100 conditions per place. [2022-09-20 20:39:34,574 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 38 selfloop transitions, 17 changer transitions 20/136 dead transitions. [2022-09-20 20:39:34,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 136 transitions, 987 flow [2022-09-20 20:39:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-20 20:39:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-09-20 20:39:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1150 transitions. [2022-09-20 20:39:34,577 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.726010101010101 [2022-09-20 20:39:34,577 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1150 transitions. [2022-09-20 20:39:34,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1150 transitions. [2022-09-20 20:39:34,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:34,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1150 transitions. [2022-09-20 20:39:34,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 71.875) internal successors, (1150), 16 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:34,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-09-20 20:39:34,582 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-09-20 20:39:34,582 INFO L175 Difference]: Start difference. First operand has 148 places, 108 transitions, 554 flow. Second operand 16 states and 1150 transitions. [2022-09-20 20:39:34,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 136 transitions, 987 flow [2022-09-20 20:39:34,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 136 transitions, 924 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-09-20 20:39:34,589 INFO L231 Difference]: Finished difference. Result has 150 places, 111 transitions, 606 flow [2022-09-20 20:39:34,589 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=606, PETRI_PLACES=150, PETRI_TRANSITIONS=111} [2022-09-20 20:39:34,590 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 48 predicate places. [2022-09-20 20:39:34,590 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 111 transitions, 606 flow [2022-09-20 20:39:34,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 69.5) internal successors, (1112), 16 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:34,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:34,591 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:34,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-20 20:39:34,591 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:34,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash -390818109, now seen corresponding path program 5 times [2022-09-20 20:39:34,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:34,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387036510] [2022-09-20 20:39:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:34,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:34,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:34,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387036510] [2022-09-20 20:39:34,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387036510] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:34,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:34,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-09-20 20:39:34,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711414105] [2022-09-20 20:39:34,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:34,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-20 20:39:34,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:34,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-20 20:39:34,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-09-20 20:39:34,818 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 99 [2022-09-20 20:39:34,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 111 transitions, 606 flow. Second operand has 14 states, 14 states have (on average 70.64285714285714) internal successors, (989), 14 states have internal predecessors, (989), 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) [2022-09-20 20:39:34,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:34,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 99 [2022-09-20 20:39:34,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:35,251 INFO L130 PetriNetUnfolder]: 84/359 cut-off events. [2022-09-20 20:39:35,251 INFO L131 PetriNetUnfolder]: For 2734/2795 co-relation queries the response was YES. [2022-09-20 20:39:35,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1726 conditions, 359 events. 84/359 cut-off events. For 2734/2795 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1589 event pairs, 46 based on Foata normal form. 15/360 useless extension candidates. Maximal degree in co-relation 1631. Up to 106 conditions per place. [2022-09-20 20:39:35,255 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 26 selfloop transitions, 5 changer transitions 41/132 dead transitions. [2022-09-20 20:39:35,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 132 transitions, 1059 flow [2022-09-20 20:39:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 20:39:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 20:39:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 951 transitions. [2022-09-20 20:39:35,257 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7389277389277389 [2022-09-20 20:39:35,257 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 951 transitions. [2022-09-20 20:39:35,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 951 transitions. [2022-09-20 20:39:35,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:35,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 951 transitions. [2022-09-20 20:39:35,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.15384615384616) internal successors, (951), 13 states have internal predecessors, (951), 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) [2022-09-20 20:39:35,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 20:39:35,261 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 20:39:35,261 INFO L175 Difference]: Start difference. First operand has 150 places, 111 transitions, 606 flow. Second operand 13 states and 951 transitions. [2022-09-20 20:39:35,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 132 transitions, 1059 flow [2022-09-20 20:39:35,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 132 transitions, 993 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-09-20 20:39:35,270 INFO L231 Difference]: Finished difference. Result has 149 places, 90 transitions, 394 flow [2022-09-20 20:39:35,270 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=394, PETRI_PLACES=149, PETRI_TRANSITIONS=90} [2022-09-20 20:39:35,270 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 47 predicate places. [2022-09-20 20:39:35,271 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 90 transitions, 394 flow [2022-09-20 20:39:35,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 70.64285714285714) internal successors, (989), 14 states have internal predecessors, (989), 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) [2022-09-20 20:39:35,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:35,272 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:35,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-20 20:39:35,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash 603826887, now seen corresponding path program 6 times [2022-09-20 20:39:35,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:35,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407682265] [2022-09-20 20:39:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:35,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:35,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407682265] [2022-09-20 20:39:35,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407682265] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:35,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:35,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-20 20:39:35,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44736816] [2022-09-20 20:39:35,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:35,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-20 20:39:35,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:35,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-20 20:39:35,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-09-20 20:39:35,512 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 99 [2022-09-20 20:39:35,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 90 transitions, 394 flow. Second operand has 13 states, 13 states have (on average 70.76923076923077) internal successors, (920), 13 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:35,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:35,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 99 [2022-09-20 20:39:35,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:36,034 INFO L130 PetriNetUnfolder]: 91/391 cut-off events. [2022-09-20 20:39:36,035 INFO L131 PetriNetUnfolder]: For 3203/3267 co-relation queries the response was YES. [2022-09-20 20:39:36,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 391 events. 91/391 cut-off events. For 3203/3267 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1936 event pairs, 17 based on Foata normal form. 27/412 useless extension candidates. Maximal degree in co-relation 1790. Up to 99 conditions per place. [2022-09-20 20:39:36,039 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 40 selfloop transitions, 9 changer transitions 22/131 dead transitions. [2022-09-20 20:39:36,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 131 transitions, 1136 flow [2022-09-20 20:39:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-20 20:39:36,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-09-20 20:39:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1172 transitions. [2022-09-20 20:39:36,041 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.73989898989899 [2022-09-20 20:39:36,041 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1172 transitions. [2022-09-20 20:39:36,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1172 transitions. [2022-09-20 20:39:36,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:36,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1172 transitions. [2022-09-20 20:39:36,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.25) internal successors, (1172), 16 states have internal predecessors, (1172), 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) [2022-09-20 20:39:36,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-09-20 20:39:36,045 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-09-20 20:39:36,046 INFO L175 Difference]: Start difference. First operand has 149 places, 90 transitions, 394 flow. Second operand 16 states and 1172 transitions. [2022-09-20 20:39:36,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 131 transitions, 1136 flow [2022-09-20 20:39:36,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 131 transitions, 870 flow, removed 124 selfloop flow, removed 20 redundant places. [2022-09-20 20:39:36,053 INFO L231 Difference]: Finished difference. Result has 134 places, 91 transitions, 371 flow [2022-09-20 20:39:36,053 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=371, PETRI_PLACES=134, PETRI_TRANSITIONS=91} [2022-09-20 20:39:36,054 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 32 predicate places. [2022-09-20 20:39:36,054 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 91 transitions, 371 flow [2022-09-20 20:39:36,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 70.76923076923077) internal successors, (920), 13 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 20:39:36,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:36,055 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:36,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-20 20:39:36,055 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1010339419, now seen corresponding path program 7 times [2022-09-20 20:39:36,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:36,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236079269] [2022-09-20 20:39:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:36,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:36,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:36,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236079269] [2022-09-20 20:39:36,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236079269] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:36,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:36,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 20:39:36,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842360304] [2022-09-20 20:39:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:36,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 20:39:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 20:39:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-09-20 20:39:36,242 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-09-20 20:39:36,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 91 transitions, 371 flow. Second operand has 11 states, 11 states have (on average 71.81818181818181) internal successors, (790), 11 states have internal predecessors, (790), 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) [2022-09-20 20:39:36,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:36,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-09-20 20:39:36,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:36,717 INFO L130 PetriNetUnfolder]: 239/721 cut-off events. [2022-09-20 20:39:36,717 INFO L131 PetriNetUnfolder]: For 4082/4100 co-relation queries the response was YES. [2022-09-20 20:39:36,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2989 conditions, 721 events. 239/721 cut-off events. For 4082/4100 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4130 event pairs, 29 based on Foata normal form. 20/738 useless extension candidates. Maximal degree in co-relation 2905. Up to 160 conditions per place. [2022-09-20 20:39:36,724 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 33 selfloop transitions, 8 changer transitions 57/156 dead transitions. [2022-09-20 20:39:36,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 156 transitions, 1201 flow [2022-09-20 20:39:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-20 20:39:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-09-20 20:39:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1283 transitions. [2022-09-20 20:39:36,730 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.76232917409388 [2022-09-20 20:39:36,730 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1283 transitions. [2022-09-20 20:39:36,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1283 transitions. [2022-09-20 20:39:36,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:36,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1283 transitions. [2022-09-20 20:39:36,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 75.47058823529412) internal successors, (1283), 17 states have internal predecessors, (1283), 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) [2022-09-20 20:39:36,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 99.0) internal successors, (1782), 18 states have internal predecessors, (1782), 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) [2022-09-20 20:39:36,737 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 99.0) internal successors, (1782), 18 states have internal predecessors, (1782), 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) [2022-09-20 20:39:36,737 INFO L175 Difference]: Start difference. First operand has 134 places, 91 transitions, 371 flow. Second operand 17 states and 1283 transitions. [2022-09-20 20:39:36,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 156 transitions, 1201 flow [2022-09-20 20:39:36,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 156 transitions, 1026 flow, removed 63 selfloop flow, removed 16 redundant places. [2022-09-20 20:39:36,745 INFO L231 Difference]: Finished difference. Result has 141 places, 90 transitions, 366 flow [2022-09-20 20:39:36,745 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=366, PETRI_PLACES=141, PETRI_TRANSITIONS=90} [2022-09-20 20:39:36,746 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 39 predicate places. [2022-09-20 20:39:36,746 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 90 transitions, 366 flow [2022-09-20 20:39:36,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 71.81818181818181) internal successors, (790), 11 states have internal predecessors, (790), 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) [2022-09-20 20:39:36,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:39:36,746 INFO L208 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:39:36,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-20 20:39:36,747 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 20:39:36,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:39:36,747 INFO L85 PathProgramCache]: Analyzing trace with hash 404120369, now seen corresponding path program 8 times [2022-09-20 20:39:36,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:39:36,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865847020] [2022-09-20 20:39:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:39:36,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:39:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 20:39:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 20:39:37,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 20:39:37,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865847020] [2022-09-20 20:39:37,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865847020] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 20:39:37,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 20:39:37,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-20 20:39:37,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014945554] [2022-09-20 20:39:37,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 20:39:37,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-20 20:39:37,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 20:39:37,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-20 20:39:37,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-09-20 20:39:37,049 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2022-09-20 20:39:37,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 90 transitions, 366 flow. Second operand has 15 states, 15 states have (on average 69.6) internal successors, (1044), 15 states have internal predecessors, (1044), 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) [2022-09-20 20:39:37,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 20:39:37,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2022-09-20 20:39:37,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 20:39:37,244 INFO L130 PetriNetUnfolder]: 37/178 cut-off events. [2022-09-20 20:39:37,244 INFO L131 PetriNetUnfolder]: For 1366/1402 co-relation queries the response was YES. [2022-09-20 20:39:37,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 178 events. 37/178 cut-off events. For 1366/1402 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 463 event pairs, 7 based on Foata normal form. 23/199 useless extension candidates. Maximal degree in co-relation 734. Up to 38 conditions per place. [2022-09-20 20:39:37,245 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2022-09-20 20:39:37,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 94 transitions, 511 flow [2022-09-20 20:39:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 20:39:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 20:39:37,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 917 transitions. [2022-09-20 20:39:37,248 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7125097125097125 [2022-09-20 20:39:37,248 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 917 transitions. [2022-09-20 20:39:37,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 917 transitions. [2022-09-20 20:39:37,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 20:39:37,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 917 transitions. [2022-09-20 20:39:37,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.53846153846153) internal successors, (917), 13 states have internal predecessors, (917), 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) [2022-09-20 20:39:37,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 20:39:37,252 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 20:39:37,252 INFO L175 Difference]: Start difference. First operand has 141 places, 90 transitions, 366 flow. Second operand 13 states and 917 transitions. [2022-09-20 20:39:37,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 94 transitions, 511 flow [2022-09-20 20:39:37,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 94 transitions, 436 flow, removed 35 selfloop flow, removed 16 redundant places. [2022-09-20 20:39:37,255 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2022-09-20 20:39:37,256 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2022-09-20 20:39:37,256 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 20 predicate places. [2022-09-20 20:39:37,256 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2022-09-20 20:39:37,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 69.6) internal successors, (1044), 15 states have internal predecessors, (1044), 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) [2022-09-20 20:39:37,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-09-20 20:39:37,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-09-20 20:39:37,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-09-20 20:39:37,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-09-20 20:39:37,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-09-20 20:39:37,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-20 20:39:37,263 INFO L444 BasicCegarLoop]: Path program histogram: [8, 5, 1, 1, 1] [2022-09-20 20:39:37,268 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 20:39:37,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 20:39:37,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 08:39:37 BasicIcfg [2022-09-20 20:39:37,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 20:39:37,273 INFO L158 Benchmark]: Toolchain (without parser) took 14955.52ms. Allocated memory was 184.5MB in the beginning and 483.4MB in the end (delta: 298.8MB). Free memory was 120.7MB in the beginning and 222.3MB in the end (delta: -101.6MB). Peak memory consumption was 198.0MB. Max. memory is 8.0GB. [2022-09-20 20:39:37,273 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 184.5MB. Free memory was 138.8MB in the beginning and 138.7MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:39:37,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.86ms. Allocated memory was 184.5MB in the beginning and 253.8MB in the end (delta: 69.2MB). Free memory was 120.4MB in the beginning and 206.9MB in the end (delta: -86.5MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2022-09-20 20:39:37,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.92ms. Allocated memory is still 253.8MB. Free memory was 206.9MB in the beginning and 203.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-20 20:39:37,275 INFO L158 Benchmark]: Boogie Preprocessor took 65.59ms. Allocated memory is still 253.8MB. Free memory was 203.7MB in the beginning and 200.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-20 20:39:37,276 INFO L158 Benchmark]: RCFGBuilder took 1392.57ms. Allocated memory is still 253.8MB. Free memory was 200.6MB in the beginning and 145.8MB in the end (delta: 54.8MB). Peak memory consumption was 84.1MB. Max. memory is 8.0GB. [2022-09-20 20:39:37,276 INFO L158 Benchmark]: TraceAbstraction took 12736.24ms. Allocated memory was 253.8MB in the beginning and 483.4MB in the end (delta: 229.6MB). Free memory was 145.3MB in the beginning and 222.3MB in the end (delta: -77.0MB). Peak memory consumption was 152.1MB. Max. memory is 8.0GB. [2022-09-20 20:39:37,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 184.5MB. Free memory was 138.8MB in the beginning and 138.7MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 671.86ms. Allocated memory was 184.5MB in the beginning and 253.8MB in the end (delta: 69.2MB). Free memory was 120.4MB in the beginning and 206.9MB in the end (delta: -86.5MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 83.92ms. Allocated memory is still 253.8MB. Free memory was 206.9MB in the beginning and 203.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.59ms. Allocated memory is still 253.8MB. Free memory was 203.7MB in the beginning and 200.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1392.57ms. Allocated memory is still 253.8MB. Free memory was 200.6MB in the beginning and 145.8MB in the end (delta: 54.8MB). Peak memory consumption was 84.1MB. Max. memory is 8.0GB. * TraceAbstraction took 12736.24ms. Allocated memory was 253.8MB in the beginning and 483.4MB in the end (delta: 229.6MB). Free memory was 145.3MB in the beginning and 222.3MB in the end (delta: -77.0MB). Peak memory consumption was 152.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 120 locations, 5 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: 12.6s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 820 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 820 mSDsluCounter, 1002 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1324 mSDsCounter, 601 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3028 IncrementalHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 601 mSolverCounterUnsat, 155 mSDtfsCounter, 3028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 267 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=9, InterpolantAutomatonStates: 216, 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, 0.8s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1141 NumberOfCodeBlocks, 1141 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1125 ConstructedInterpolants, 0 QuantifiedInterpolants, 9157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 20:39:37,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...