./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8efebf87dc67f98045ac231dc43d6a61f436e058244f16134f1d46d3b696c80 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:56:39,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:56:39,989 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:56:39,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:56:39,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:56:40,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:56:40,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:56:40,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:56:40,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:56:40,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:56:40,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:56:40,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:56:40,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:56:40,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:56:40,041 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:56:40,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:56:40,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:56:40,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:56:40,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:56:40,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:56:40,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:56:40,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:56:40,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:56:40,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:56:40,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:56:40,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:56:40,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:56:40,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:56:40,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:56:40,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:56:40,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:56:40,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:56:40,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:56:40,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:56:40,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:56:40,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:56:40,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:56:40,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:56:40,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:56:40,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:56:40,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:56:40,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:56:40,056 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8efebf87dc67f98045ac231dc43d6a61f436e058244f16134f1d46d3b696c80 [2024-10-13 06:56:40,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:56:40,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:56:40,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:56:40,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:56:40,345 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:56:40,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 06:56:41,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:56:42,093 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:56:42,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 06:56:42,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41704c75/317a71e9cf544373bbd788e0fa1242e9/FLAGa6562bdcd [2024-10-13 06:56:42,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41704c75/317a71e9cf544373bbd788e0fa1242e9 [2024-10-13 06:56:42,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:56:42,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:56:42,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:56:42,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:56:42,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:56:42,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e70a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42, skipping insertion in model container [2024-10-13 06:56:42,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:56:42,395 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-10-13 06:56:42,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:56:42,651 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:56:42,666 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-10-13 06:56:42,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:56:42,771 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:56:42,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42 WrapperNode [2024-10-13 06:56:42,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:56:42,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:56:42,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:56:42,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:56:42,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,844 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2024-10-13 06:56:42,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:56:42,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:56:42,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:56:42,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:56:42,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,901 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 06:56:42,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:56:42,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:56:42,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:56:42,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:56:42,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (1/1) ... [2024-10-13 06:56:42,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:56:42,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:56:42,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 06:56:42,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 06:56:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 06:56:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:56:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 06:56:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 06:56:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 06:56:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 06:56:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 06:56:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 06:56:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 06:56:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 06:56:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:56:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 06:56:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:56:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:56:43,024 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 06:56:43,154 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:56:43,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:56:43,485 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 06:56:43,485 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:56:43,704 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:56:43,704 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 06:56:43,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:56:43 BoogieIcfgContainer [2024-10-13 06:56:43,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:56:43,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:56:43,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:56:43,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:56:43,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:56:42" (1/3) ... [2024-10-13 06:56:43,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbe5fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:56:43, skipping insertion in model container [2024-10-13 06:56:43,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:56:42" (2/3) ... [2024-10-13 06:56:43,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbe5fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:56:43, skipping insertion in model container [2024-10-13 06:56:43,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:56:43" (3/3) ... [2024-10-13 06:56:43,716 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 06:56:43,732 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:56:43,732 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 06:56:43,732 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 06:56:43,793 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 06:56:43,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 112 flow [2024-10-13 06:56:43,925 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2024-10-13 06:56:43,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 06:56:43,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2024-10-13 06:56:43,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 48 transitions, 112 flow [2024-10-13 06:56:43,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 44 transitions, 100 flow [2024-10-13 06:56:43,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:56:43,956 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1e4a5fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:56:43,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 06:56:43,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 06:56:43,961 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-13 06:56:43,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 06:56:43,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:56:43,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 06:56:43,962 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:56:43,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:56:43,968 INFO L85 PathProgramCache]: Analyzing trace with hash 12312705, now seen corresponding path program 1 times [2024-10-13 06:56:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:56:43,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731388362] [2024-10-13 06:56:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:56:43,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:56:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:56:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:56:44,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:56:44,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731388362] [2024-10-13 06:56:44,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731388362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:56:44,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:56:44,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 06:56:44,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844832130] [2024-10-13 06:56:44,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:56:44,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:56:44,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:56:44,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:56:44,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:56:44,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 48 [2024-10-13 06:56:44,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:44,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:56:44,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 48 [2024-10-13 06:56:44,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:56:45,407 INFO L124 PetriNetUnfolderBase]: 2495/4127 cut-off events. [2024-10-13 06:56:45,407 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 06:56:45,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7703 conditions, 4127 events. 2495/4127 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 28758 event pairs, 443 based on Foata normal form. 135/4199 useless extension candidates. Maximal degree in co-relation 7691. Up to 2779 conditions per place. [2024-10-13 06:56:45,443 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 37 selfloop transitions, 2 changer transitions 2/60 dead transitions. [2024-10-13 06:56:45,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 223 flow [2024-10-13 06:56:45,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:56:45,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 06:56:45,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-10-13 06:56:45,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7847222222222222 [2024-10-13 06:56:45,459 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 113 transitions. [2024-10-13 06:56:45,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 223 flow [2024-10-13 06:56:45,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 06:56:45,468 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 94 flow [2024-10-13 06:56:45,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-10-13 06:56:45,476 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-10-13 06:56:45,478 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 94 flow [2024-10-13 06:56:45,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:45,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:56:45,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:56:45,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:56:45,479 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:56:45,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:56:45,481 INFO L85 PathProgramCache]: Analyzing trace with hash -285260819, now seen corresponding path program 1 times [2024-10-13 06:56:45,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:56:45,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247058178] [2024-10-13 06:56:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:56:45,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:56:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:56:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:56:45,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:56:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247058178] [2024-10-13 06:56:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247058178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:56:45,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:56:45,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:56:45,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627633735] [2024-10-13 06:56:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:56:45,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:56:45,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:56:45,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:56:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:56:45,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-13 06:56:45,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:45,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:56:45,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-13 06:56:45,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:56:51,325 INFO L124 PetriNetUnfolderBase]: 30766/43987 cut-off events. [2024-10-13 06:56:51,325 INFO L125 PetriNetUnfolderBase]: For 1952/1952 co-relation queries the response was YES. [2024-10-13 06:56:51,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87740 conditions, 43987 events. 30766/43987 cut-off events. For 1952/1952 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 311206 event pairs, 7359 based on Foata normal form. 0/42878 useless extension candidates. Maximal degree in co-relation 87730. Up to 14967 conditions per place. [2024-10-13 06:56:51,665 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 46 selfloop transitions, 7 changer transitions 97/161 dead transitions. [2024-10-13 06:56:51,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 161 transitions, 652 flow [2024-10-13 06:56:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:56:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 06:56:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 287 transitions. [2024-10-13 06:56:51,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6643518518518519 [2024-10-13 06:56:51,670 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 9 states and 287 transitions. [2024-10-13 06:56:51,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 161 transitions, 652 flow [2024-10-13 06:56:51,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 161 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 06:56:51,676 INFO L231 Difference]: Finished difference. Result has 66 places, 46 transitions, 186 flow [2024-10-13 06:56:51,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=186, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2024-10-13 06:56:51,679 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2024-10-13 06:56:51,679 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 46 transitions, 186 flow [2024-10-13 06:56:51,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:51,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:56:51,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:56:51,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:56:51,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:56:51,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:56:51,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1474582094, now seen corresponding path program 1 times [2024-10-13 06:56:51,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:56:51,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950037092] [2024-10-13 06:56:51,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:56:51,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:56:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:56:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:56:51,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:56:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950037092] [2024-10-13 06:56:51,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950037092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:56:51,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:56:51,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:56:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473551110] [2024-10-13 06:56:51,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:56:51,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:56:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:56:51,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:56:51,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:56:51,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-13 06:56:51,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 46 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:51,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:56:51,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-13 06:56:51,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:56:56,049 INFO L124 PetriNetUnfolderBase]: 22990/33539 cut-off events. [2024-10-13 06:56:56,049 INFO L125 PetriNetUnfolderBase]: For 44736/44759 co-relation queries the response was YES. [2024-10-13 06:56:56,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96982 conditions, 33539 events. 22990/33539 cut-off events. For 44736/44759 co-relation queries the response was YES. Maximal size of possible extension queue 1534. Compared 235588 event pairs, 1502 based on Foata normal form. 745/34236 useless extension candidates. Maximal degree in co-relation 96964. Up to 14211 conditions per place. [2024-10-13 06:56:56,286 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 59 selfloop transitions, 11 changer transitions 84/165 dead transitions. [2024-10-13 06:56:56,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 165 transitions, 1010 flow [2024-10-13 06:56:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:56:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 06:56:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2024-10-13 06:56:56,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-10-13 06:56:56,292 INFO L175 Difference]: Start difference. First operand has 66 places, 46 transitions, 186 flow. Second operand 10 states and 297 transitions. [2024-10-13 06:56:56,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 165 transitions, 1010 flow [2024-10-13 06:56:56,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 165 transitions, 898 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-10-13 06:56:56,493 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 280 flow [2024-10-13 06:56:56,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=280, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2024-10-13 06:56:56,495 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-13 06:56:56,495 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 280 flow [2024-10-13 06:56:56,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:56,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:56:56,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:56:56,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:56:56,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:56:56,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:56:56,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1829214158, now seen corresponding path program 1 times [2024-10-13 06:56:56,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:56:56,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741818793] [2024-10-13 06:56:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:56:56,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:56:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:56:56,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:56:56,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:56:56,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741818793] [2024-10-13 06:56:56,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741818793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:56:56,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:56:56,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:56:56,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447243369] [2024-10-13 06:56:56,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:56:56,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:56:56,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:56:56,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:56:56,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:56:56,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-13 06:56:56,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:56:56,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:56:56,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-13 06:56:56,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:57:00,596 INFO L124 PetriNetUnfolderBase]: 22352/32613 cut-off events. [2024-10-13 06:57:00,596 INFO L125 PetriNetUnfolderBase]: For 89767/89834 co-relation queries the response was YES. [2024-10-13 06:57:00,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104854 conditions, 32613 events. 22352/32613 cut-off events. For 89767/89834 co-relation queries the response was YES. Maximal size of possible extension queue 1459. Compared 227203 event pairs, 4865 based on Foata normal form. 753/33351 useless extension candidates. Maximal degree in co-relation 104829. Up to 13760 conditions per place. [2024-10-13 06:57:00,890 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 68 selfloop transitions, 17 changer transitions 84/180 dead transitions. [2024-10-13 06:57:00,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 180 transitions, 1220 flow [2024-10-13 06:57:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:57:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 06:57:00,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 303 transitions. [2024-10-13 06:57:00,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63125 [2024-10-13 06:57:00,893 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 280 flow. Second operand 10 states and 303 transitions. [2024-10-13 06:57:00,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 180 transitions, 1220 flow [2024-10-13 06:57:01,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 180 transitions, 1192 flow, removed 14 selfloop flow, removed 0 redundant places. [2024-10-13 06:57:01,519 INFO L231 Difference]: Finished difference. Result has 85 places, 62 transitions, 452 flow [2024-10-13 06:57:01,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=452, PETRI_PLACES=85, PETRI_TRANSITIONS=62} [2024-10-13 06:57:01,520 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2024-10-13 06:57:01,520 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 62 transitions, 452 flow [2024-10-13 06:57:01,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:01,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:57:01,520 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:57:01,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:57:01,520 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:57:01,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:57:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1512216269, now seen corresponding path program 1 times [2024-10-13 06:57:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:57:01,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651924464] [2024-10-13 06:57:01,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:57:01,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:57:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:57:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:57:01,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:57:01,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651924464] [2024-10-13 06:57:01,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651924464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:57:01,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:57:01,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:57:01,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986335533] [2024-10-13 06:57:01,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:57:01,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:57:01,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:57:01,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:57:01,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:57:01,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-13 06:57:01,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 62 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:01,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:57:01,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-13 06:57:01,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:57:06,853 INFO L124 PetriNetUnfolderBase]: 29882/45449 cut-off events. [2024-10-13 06:57:06,854 INFO L125 PetriNetUnfolderBase]: For 99823/103838 co-relation queries the response was YES. [2024-10-13 06:57:07,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124991 conditions, 45449 events. 29882/45449 cut-off events. For 99823/103838 co-relation queries the response was YES. Maximal size of possible extension queue 2026. Compared 350857 event pairs, 4609 based on Foata normal form. 2886/47046 useless extension candidates. Maximal degree in co-relation 124959. Up to 22749 conditions per place. [2024-10-13 06:57:07,369 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 59 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-10-13 06:57:07,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 98 transitions, 716 flow [2024-10-13 06:57:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:57:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 06:57:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-10-13 06:57:07,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6927083333333334 [2024-10-13 06:57:07,371 INFO L175 Difference]: Start difference. First operand has 85 places, 62 transitions, 452 flow. Second operand 4 states and 133 transitions. [2024-10-13 06:57:07,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 98 transitions, 716 flow [2024-10-13 06:57:08,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 98 transitions, 700 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-13 06:57:08,620 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 482 flow [2024-10-13 06:57:08,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=482, PETRI_PLACES=80, PETRI_TRANSITIONS=67} [2024-10-13 06:57:08,621 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 24 predicate places. [2024-10-13 06:57:08,621 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 482 flow [2024-10-13 06:57:08,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:08,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:57:08,622 INFO L204 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] [2024-10-13 06:57:08,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:57:08,622 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:57:08,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:57:08,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1479481314, now seen corresponding path program 1 times [2024-10-13 06:57:08,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:57:08,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967105778] [2024-10-13 06:57:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:57:08,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:57:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:57:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:57:08,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:57:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967105778] [2024-10-13 06:57:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967105778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:57:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:57:08,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:57:08,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004346660] [2024-10-13 06:57:08,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:57:08,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:57:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:57:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:57:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:57:08,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-13 06:57:08,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 67 transitions, 482 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:08,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:57:08,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-13 06:57:08,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:57:15,796 INFO L124 PetriNetUnfolderBase]: 36993/57468 cut-off events. [2024-10-13 06:57:15,796 INFO L125 PetriNetUnfolderBase]: For 127458/130422 co-relation queries the response was YES. [2024-10-13 06:57:16,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171757 conditions, 57468 events. 36993/57468 cut-off events. For 127458/130422 co-relation queries the response was YES. Maximal size of possible extension queue 3061. Compared 496332 event pairs, 18012 based on Foata normal form. 2039/54973 useless extension candidates. Maximal degree in co-relation 171721. Up to 22706 conditions per place. [2024-10-13 06:57:16,446 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 86 selfloop transitions, 14 changer transitions 6/135 dead transitions. [2024-10-13 06:57:16,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 135 transitions, 1000 flow [2024-10-13 06:57:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:57:16,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 06:57:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 216 transitions. [2024-10-13 06:57:16,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-13 06:57:16,448 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 482 flow. Second operand 7 states and 216 transitions. [2024-10-13 06:57:16,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 135 transitions, 1000 flow [2024-10-13 06:57:16,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 135 transitions, 984 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-10-13 06:57:16,601 INFO L231 Difference]: Finished difference. Result has 86 places, 72 transitions, 585 flow [2024-10-13 06:57:16,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=585, PETRI_PLACES=86, PETRI_TRANSITIONS=72} [2024-10-13 06:57:16,602 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 30 predicate places. [2024-10-13 06:57:16,602 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 585 flow [2024-10-13 06:57:16,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:16,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:57:16,602 INFO L204 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] [2024-10-13 06:57:16,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:57:16,602 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:57:16,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:57:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1984995977, now seen corresponding path program 1 times [2024-10-13 06:57:16,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:57:16,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709473368] [2024-10-13 06:57:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:57:16,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:57:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:57:16,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:57:16,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:57:16,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709473368] [2024-10-13 06:57:16,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709473368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:57:16,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:57:16,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:57:16,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948075318] [2024-10-13 06:57:16,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:57:16,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:57:16,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:57:16,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:57:16,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:57:16,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-13 06:57:16,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 72 transitions, 585 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:16,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:57:16,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-13 06:57:16,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:57:23,529 INFO L124 PetriNetUnfolderBase]: 39639/58761 cut-off events. [2024-10-13 06:57:23,529 INFO L125 PetriNetUnfolderBase]: For 104537/109075 co-relation queries the response was YES. [2024-10-13 06:57:23,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169402 conditions, 58761 events. 39639/58761 cut-off events. For 104537/109075 co-relation queries the response was YES. Maximal size of possible extension queue 2341. Compared 440115 event pairs, 4482 based on Foata normal form. 3949/61245 useless extension candidates. Maximal degree in co-relation 169365. Up to 22069 conditions per place. [2024-10-13 06:57:23,997 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 76 selfloop transitions, 10 changer transitions 3/123 dead transitions. [2024-10-13 06:57:23,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 945 flow [2024-10-13 06:57:23,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:57:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 06:57:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-10-13 06:57:23,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125 [2024-10-13 06:57:23,998 INFO L175 Difference]: Start difference. First operand has 86 places, 72 transitions, 585 flow. Second operand 5 states and 171 transitions. [2024-10-13 06:57:23,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 945 flow [2024-10-13 06:57:24,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 123 transitions, 891 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-10-13 06:57:24,503 INFO L231 Difference]: Finished difference. Result has 89 places, 74 transitions, 565 flow [2024-10-13 06:57:24,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=565, PETRI_PLACES=89, PETRI_TRANSITIONS=74} [2024-10-13 06:57:24,504 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 33 predicate places. [2024-10-13 06:57:24,504 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 74 transitions, 565 flow [2024-10-13 06:57:24,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:24,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:57:24,505 INFO L204 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] [2024-10-13 06:57:24,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:57:24,505 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:57:24,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:57:24,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1121967309, now seen corresponding path program 1 times [2024-10-13 06:57:24,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:57:24,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958777333] [2024-10-13 06:57:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:57:24,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:57:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:57:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:57:24,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:57:24,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958777333] [2024-10-13 06:57:24,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958777333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:57:24,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:57:24,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:57:24,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128979867] [2024-10-13 06:57:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:57:24,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:57:24,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:57:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:57:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:57:24,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-13 06:57:24,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 74 transitions, 565 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:57:24,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:57:24,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-13 06:57:24,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand