./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:06:23,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:06:23,967 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:06:23,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:06:23,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:06:24,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:06:24,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:06:24,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:06:24,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:06:24,003 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:06:24,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:06:24,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:06:24,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:06:24,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:06:24,005 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:06:24,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:06:24,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:06:24,005 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:06:24,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:06:24,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:06:24,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:06:24,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:06:24,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:06:24,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:06:24,007 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:06:24,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:06:24,007 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:06:24,007 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:06:24,007 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:06:24,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:06:24,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:06:24,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:06:24,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:06:24,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:06:24,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:06:24,009 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:06:24,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:06:24,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:06:24,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:06:24,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:06:24,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:06:24,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:06:24,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:06:24,010 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2025-02-08 01:06:24,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:06:24,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:06:24,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:06:24,330 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:06:24,330 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:06:24,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-02-08 01:06:25,901 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c808038c8/747f81cc6da744b3817e685884a7fc87/FLAG33339ff3b [2025-02-08 01:06:26,196 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:06:26,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-02-08 01:06:26,207 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c808038c8/747f81cc6da744b3817e685884a7fc87/FLAG33339ff3b [2025-02-08 01:06:26,220 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c808038c8/747f81cc6da744b3817e685884a7fc87 [2025-02-08 01:06:26,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:06:26,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:06:26,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:06:26,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:06:26,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:06:26,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a328d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26, skipping insertion in model container [2025-02-08 01:06:26,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:06:26,387 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2025-02-08 01:06:26,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:06:26,559 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:06:26,579 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2025-02-08 01:06:26,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:06:26,733 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:06:26,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26 WrapperNode [2025-02-08 01:06:26,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:06:26,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:06:26,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:06:26,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:06:26,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,786 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2025-02-08 01:06:26,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:06:26,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:06:26,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:06:26,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:06:26,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,811 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]. [2025-02-08 01:06:26,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:06:26,825 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:06:26,825 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:06:26,825 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:06:26,825 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (1/1) ... [2025-02-08 01:06:26,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:06:26,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:06:26,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:06:26,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:06:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:06:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:06:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:06:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:06:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:06:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:06:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 01:06:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 01:06:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:06:26,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:06:26,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:06:26,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:06:26,877 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:06:26,993 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:06:26,995 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:06:27,399 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:06:27,399 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:06:27,652 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:06:27,654 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:06:27,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:27 BoogieIcfgContainer [2025-02-08 01:06:27,655 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:06:27,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:06:27,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:06:27,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:06:27,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:06:26" (1/3) ... [2025-02-08 01:06:27,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc96d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:06:27, skipping insertion in model container [2025-02-08 01:06:27,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:26" (2/3) ... [2025-02-08 01:06:27,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc96d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:06:27, skipping insertion in model container [2025-02-08 01:06:27,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:27" (3/3) ... [2025-02-08 01:06:27,665 INFO L128 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2025-02-08 01:06:27,676 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:06:27,678 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe035_power.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 01:06:27,679 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:06:27,766 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:06:27,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2025-02-08 01:06:27,819 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2025-02-08 01:06:27,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:06:27,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2025-02-08 01:06:27,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2025-02-08 01:06:27,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2025-02-08 01:06:27,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:06:27,850 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;@4d35350c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:06:27,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 01:06:27,855 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:06:27,857 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2025-02-08 01:06:27,857 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:06:27,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:27,858 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:27,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:27,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:27,862 INFO L85 PathProgramCache]: Analyzing trace with hash 283134446, now seen corresponding path program 1 times [2025-02-08 01:06:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:27,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901382126] [2025-02-08 01:06:27,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:27,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 01:06:27,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 01:06:27,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:27,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:28,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:28,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901382126] [2025-02-08 01:06:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901382126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:28,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 01:06:28,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119234948] [2025-02-08 01:06:28,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:28,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:06:28,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:28,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:06:28,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:06:28,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-08 01:06:28,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:28,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:28,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-08 01:06:28,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:29,669 INFO L124 PetriNetUnfolderBase]: 6894/9909 cut-off events. [2025-02-08 01:06:29,670 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-02-08 01:06:29,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19779 conditions, 9909 events. 6894/9909 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 53489 event pairs, 804 based on Foata normal form. 343/10188 useless extension candidates. Maximal degree in co-relation 19768. Up to 8443 conditions per place. [2025-02-08 01:06:29,752 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 46 selfloop transitions, 2 changer transitions 2/56 dead transitions. [2025-02-08 01:06:29,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 56 transitions, 221 flow [2025-02-08 01:06:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:06:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:06:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-02-08 01:06:29,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2025-02-08 01:06:29,763 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 80 transitions. [2025-02-08 01:06:29,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 56 transitions, 221 flow [2025-02-08 01:06:29,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:06:29,768 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2025-02-08 01:06:29,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-02-08 01:06:29,772 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2025-02-08 01:06:29,772 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2025-02-08 01:06:29,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:29,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:29,772 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:29,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:06:29,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:29,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:29,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1985707556, now seen corresponding path program 1 times [2025-02-08 01:06:29,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:29,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672349770] [2025-02-08 01:06:29,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:29,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:29,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 01:06:29,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 01:06:29,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:29,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:30,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:30,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672349770] [2025-02-08 01:06:30,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672349770] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:30,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:30,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:06:30,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68579424] [2025-02-08 01:06:30,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:30,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:06:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:30,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:06:30,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:06:30,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-08 01:06:30,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-02-08 01:06:30,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:30,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-08 01:06:30,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:31,208 INFO L124 PetriNetUnfolderBase]: 4801/7698 cut-off events. [2025-02-08 01:06:31,209 INFO L125 PetriNetUnfolderBase]: For 267/267 co-relation queries the response was YES. [2025-02-08 01:06:31,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15116 conditions, 7698 events. 4801/7698 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 47319 event pairs, 994 based on Foata normal form. 343/7808 useless extension candidates. Maximal degree in co-relation 15106. Up to 3626 conditions per place. [2025-02-08 01:06:31,250 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 63 selfloop transitions, 5 changer transitions 1/75 dead transitions. [2025-02-08 01:06:31,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 75 transitions, 306 flow [2025-02-08 01:06:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:06:31,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:06:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2025-02-08 01:06:31,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2025-02-08 01:06:31,253 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 4 states and 107 transitions. [2025-02-08 01:06:31,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 75 transitions, 306 flow [2025-02-08 01:06:31,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 75 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 01:06:31,258 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2025-02-08 01:06:31,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2025-02-08 01:06:31,258 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2025-02-08 01:06:31,258 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2025-02-08 01:06:31,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-02-08 01:06:31,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:31,259 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:31,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:06:31,259 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:31,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash -888272975, now seen corresponding path program 1 times [2025-02-08 01:06:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:31,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005692853] [2025-02-08 01:06:31,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:31,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:31,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 01:06:31,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 01:06:31,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:31,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:31,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:31,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005692853] [2025-02-08 01:06:31,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005692853] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:31,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:31,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:06:31,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45174281] [2025-02-08 01:06:31,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:31,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:06:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:31,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:06:31,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:06:31,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-08 01:06:31,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-02-08 01:06:31,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:31,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-08 01:06:31,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:32,242 INFO L124 PetriNetUnfolderBase]: 2701/4273 cut-off events. [2025-02-08 01:06:32,242 INFO L125 PetriNetUnfolderBase]: For 805/805 co-relation queries the response was YES. [2025-02-08 01:06:32,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9651 conditions, 4273 events. 2701/4273 cut-off events. For 805/805 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 22318 event pairs, 651 based on Foata normal form. 218/4408 useless extension candidates. Maximal degree in co-relation 9639. Up to 1515 conditions per place. [2025-02-08 01:06:32,333 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 81 selfloop transitions, 8 changer transitions 1/96 dead transitions. [2025-02-08 01:06:32,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 96 transitions, 427 flow [2025-02-08 01:06:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:06:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:06:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2025-02-08 01:06:32,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2025-02-08 01:06:32,339 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 5 states and 137 transitions. [2025-02-08 01:06:32,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 96 transitions, 427 flow [2025-02-08 01:06:32,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 96 transitions, 417 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 01:06:32,342 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 152 flow [2025-02-08 01:06:32,343 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2025-02-08 01:06:32,344 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2025-02-08 01:06:32,344 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 152 flow [2025-02-08 01:06:32,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-02-08 01:06:32,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:32,345 INFO L206 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] [2025-02-08 01:06:32,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:06:32,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:32,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash -410067714, now seen corresponding path program 1 times [2025-02-08 01:06:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:32,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879230955] [2025-02-08 01:06:32,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:32,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:32,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 01:06:32,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 01:06:32,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:32,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:32,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:32,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879230955] [2025-02-08 01:06:32,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879230955] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:32,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:32,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:06:32,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161838166] [2025-02-08 01:06:32,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:32,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:32,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:32,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:32,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:32,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-08 01:06:32,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-02-08 01:06:32,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:32,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-08 01:06:32,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:33,089 INFO L124 PetriNetUnfolderBase]: 1786/2728 cut-off events. [2025-02-08 01:06:33,089 INFO L125 PetriNetUnfolderBase]: For 1522/1522 co-relation queries the response was YES. [2025-02-08 01:06:33,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6675 conditions, 2728 events. 1786/2728 cut-off events. For 1522/1522 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 12634 event pairs, 594 based on Foata normal form. 68/2773 useless extension candidates. Maximal degree in co-relation 6661. Up to 1050 conditions per place. [2025-02-08 01:06:33,101 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 67 selfloop transitions, 11 changer transitions 1/85 dead transitions. [2025-02-08 01:06:33,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 406 flow [2025-02-08 01:06:33,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:06:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:06:33,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2025-02-08 01:06:33,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-02-08 01:06:33,102 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 152 flow. Second operand 6 states and 135 transitions. [2025-02-08 01:06:33,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 406 flow [2025-02-08 01:06:33,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 85 transitions, 381 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-08 01:06:33,116 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 166 flow [2025-02-08 01:06:33,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2025-02-08 01:06:33,117 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2025-02-08 01:06:33,118 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 166 flow [2025-02-08 01:06:33,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-02-08 01:06:33,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:33,118 INFO L206 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] [2025-02-08 01:06:33,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:06:33,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:33,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:33,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1336989100, now seen corresponding path program 1 times [2025-02-08 01:06:33,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:33,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539886555] [2025-02-08 01:06:33,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:33,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:33,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:33,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:33,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:33,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:35,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:35,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539886555] [2025-02-08 01:06:35,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539886555] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:35,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:35,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 01:06:35,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150011510] [2025-02-08 01:06:35,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:35,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 01:06:35,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:35,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 01:06:35,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:06:35,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:35,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 166 flow. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 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) [2025-02-08 01:06:35,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:35,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:35,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:37,036 INFO L124 PetriNetUnfolderBase]: 4600/6993 cut-off events. [2025-02-08 01:06:37,037 INFO L125 PetriNetUnfolderBase]: For 4692/4692 co-relation queries the response was YES. [2025-02-08 01:06:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17443 conditions, 6993 events. 4600/6993 cut-off events. For 4692/4692 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 38329 event pairs, 1004 based on Foata normal form. 8/6992 useless extension candidates. Maximal degree in co-relation 17428. Up to 2705 conditions per place. [2025-02-08 01:06:37,079 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 94 selfloop transitions, 11 changer transitions 48/158 dead transitions. [2025-02-08 01:06:37,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 158 transitions, 972 flow [2025-02-08 01:06:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:06:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:06:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 206 transitions. [2025-02-08 01:06:37,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49047619047619045 [2025-02-08 01:06:37,081 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 166 flow. Second operand 10 states and 206 transitions. [2025-02-08 01:06:37,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 158 transitions, 972 flow [2025-02-08 01:06:37,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 158 transitions, 725 flow, removed 40 selfloop flow, removed 8 redundant places. [2025-02-08 01:06:37,119 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 188 flow [2025-02-08 01:06:37,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2025-02-08 01:06:37,120 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2025-02-08 01:06:37,120 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 188 flow [2025-02-08 01:06:37,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 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) [2025-02-08 01:06:37,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:37,121 INFO L206 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] [2025-02-08 01:06:37,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:06:37,121 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:37,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash -620405188, now seen corresponding path program 2 times [2025-02-08 01:06:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:37,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500050383] [2025-02-08 01:06:37,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:06:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:37,141 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:37,333 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:37,334 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:06:37,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:37,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:37,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500050383] [2025-02-08 01:06:37,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500050383] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:37,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:37,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:06:37,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164575620] [2025-02-08 01:06:37,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:37,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:37,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:37,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:37,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:37,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:37,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-02-08 01:06:37,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:37,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:37,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:38,554 INFO L124 PetriNetUnfolderBase]: 4926/7532 cut-off events. [2025-02-08 01:06:38,558 INFO L125 PetriNetUnfolderBase]: For 2996/2996 co-relation queries the response was YES. [2025-02-08 01:06:38,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19950 conditions, 7532 events. 4926/7532 cut-off events. For 2996/2996 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 42381 event pairs, 584 based on Foata normal form. 16/7542 useless extension candidates. Maximal degree in co-relation 19933. Up to 3490 conditions per place. [2025-02-08 01:06:38,602 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 57 selfloop transitions, 1 changer transitions 52/115 dead transitions. [2025-02-08 01:06:38,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 115 transitions, 645 flow [2025-02-08 01:06:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:06:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:06:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2025-02-08 01:06:38,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2025-02-08 01:06:38,607 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 188 flow. Second operand 6 states and 123 transitions. [2025-02-08 01:06:38,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 115 transitions, 645 flow [2025-02-08 01:06:38,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 115 transitions, 634 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-08 01:06:38,615 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 165 flow [2025-02-08 01:06:38,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2025-02-08 01:06:38,619 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2025-02-08 01:06:38,619 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 165 flow [2025-02-08 01:06:38,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2025-02-08 01:06:38,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:38,619 INFO L206 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] [2025-02-08 01:06:38,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:06:38,619 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:38,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:38,620 INFO L85 PathProgramCache]: Analyzing trace with hash -825430628, now seen corresponding path program 3 times [2025-02-08 01:06:38,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:38,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214114067] [2025-02-08 01:06:38,620 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:06:38,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:38,643 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:38,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:38,926 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 01:06:38,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:41,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:41,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214114067] [2025-02-08 01:06:41,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214114067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:41,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:41,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-08 01:06:41,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810689354] [2025-02-08 01:06:41,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:41,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 01:06:41,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:41,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 01:06:41,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-02-08 01:06:42,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:42,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 165 flow. Second operand has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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) [2025-02-08 01:06:42,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:42,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:42,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:43,253 INFO L124 PetriNetUnfolderBase]: 3388/5347 cut-off events. [2025-02-08 01:06:43,257 INFO L125 PetriNetUnfolderBase]: For 2440/2443 co-relation queries the response was YES. [2025-02-08 01:06:43,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14080 conditions, 5347 events. 3388/5347 cut-off events. For 2440/2443 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 29593 event pairs, 334 based on Foata normal form. 8/5352 useless extension candidates. Maximal degree in co-relation 14062. Up to 1585 conditions per place. [2025-02-08 01:06:43,289 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 61 selfloop transitions, 6 changer transitions 107/179 dead transitions. [2025-02-08 01:06:43,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 179 transitions, 965 flow [2025-02-08 01:06:43,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 01:06:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 01:06:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 247 transitions. [2025-02-08 01:06:43,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2025-02-08 01:06:43,295 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 165 flow. Second operand 13 states and 247 transitions. [2025-02-08 01:06:43,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 179 transitions, 965 flow [2025-02-08 01:06:43,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 179 transitions, 924 flow, removed 18 selfloop flow, removed 6 redundant places. [2025-02-08 01:06:43,305 INFO L231 Difference]: Finished difference. Result has 72 places, 46 transitions, 186 flow [2025-02-08 01:06:43,305 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=186, PETRI_PLACES=72, PETRI_TRANSITIONS=46} [2025-02-08 01:06:43,309 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2025-02-08 01:06:43,309 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 46 transitions, 186 flow [2025-02-08 01:06:43,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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) [2025-02-08 01:06:43,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:43,309 INFO L206 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] [2025-02-08 01:06:43,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:06:43,311 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:43,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:43,311 INFO L85 PathProgramCache]: Analyzing trace with hash -48948876, now seen corresponding path program 4 times [2025-02-08 01:06:43,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:43,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083796260] [2025-02-08 01:06:43,312 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 01:06:43,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:43,327 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 32 statements into 2 equivalence classes. [2025-02-08 01:06:43,479 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:43,479 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 01:06:43,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:44,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:44,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083796260] [2025-02-08 01:06:44,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083796260] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:44,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:44,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 01:06:44,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127850546] [2025-02-08 01:06:44,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:44,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 01:06:44,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:44,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 01:06:44,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:06:44,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:44,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 46 transitions, 186 flow. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 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) [2025-02-08 01:06:44,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:44,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:44,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:45,653 INFO L124 PetriNetUnfolderBase]: 2062/3301 cut-off events. [2025-02-08 01:06:45,653 INFO L125 PetriNetUnfolderBase]: For 2280/2283 co-relation queries the response was YES. [2025-02-08 01:06:45,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8968 conditions, 3301 events. 2062/3301 cut-off events. For 2280/2283 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 16381 event pairs, 640 based on Foata normal form. 8/3306 useless extension candidates. Maximal degree in co-relation 8946. Up to 1631 conditions per place. [2025-02-08 01:06:45,665 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 50 selfloop transitions, 8 changer transitions 58/121 dead transitions. [2025-02-08 01:06:45,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 121 transitions, 669 flow [2025-02-08 01:06:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:06:45,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:06:45,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2025-02-08 01:06:45,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4261904761904762 [2025-02-08 01:06:45,667 INFO L175 Difference]: Start difference. First operand has 72 places, 46 transitions, 186 flow. Second operand 10 states and 179 transitions. [2025-02-08 01:06:45,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 121 transitions, 669 flow [2025-02-08 01:06:45,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 121 transitions, 640 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-02-08 01:06:45,672 INFO L231 Difference]: Finished difference. Result has 73 places, 48 transitions, 220 flow [2025-02-08 01:06:45,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=220, PETRI_PLACES=73, PETRI_TRANSITIONS=48} [2025-02-08 01:06:45,673 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2025-02-08 01:06:45,673 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 48 transitions, 220 flow [2025-02-08 01:06:45,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 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) [2025-02-08 01:06:45,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:45,673 INFO L206 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] [2025-02-08 01:06:45,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 01:06:45,673 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:45,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash 871114658, now seen corresponding path program 5 times [2025-02-08 01:06:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:45,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041060534] [2025-02-08 01:06:45,676 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 01:06:45,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:45,692 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:45,799 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:45,800 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:06:45,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:49,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:49,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041060534] [2025-02-08 01:06:49,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041060534] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:49,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:49,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 01:06:49,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501163412] [2025-02-08 01:06:49,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:49,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 01:06:49,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:49,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 01:06:49,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:06:49,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:49,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 48 transitions, 220 flow. Second operand has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 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) [2025-02-08 01:06:49,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:49,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:49,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:50,361 INFO L124 PetriNetUnfolderBase]: 2008/3239 cut-off events. [2025-02-08 01:06:50,361 INFO L125 PetriNetUnfolderBase]: For 3138/3141 co-relation queries the response was YES. [2025-02-08 01:06:50,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9388 conditions, 3239 events. 2008/3239 cut-off events. For 3138/3141 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 16172 event pairs, 582 based on Foata normal form. 8/3244 useless extension candidates. Maximal degree in co-relation 9364. Up to 1251 conditions per place. [2025-02-08 01:06:50,375 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 49 selfloop transitions, 6 changer transitions 72/132 dead transitions. [2025-02-08 01:06:50,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 132 transitions, 791 flow [2025-02-08 01:06:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:06:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:06:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2025-02-08 01:06:50,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2025-02-08 01:06:50,377 INFO L175 Difference]: Start difference. First operand has 73 places, 48 transitions, 220 flow. Second operand 10 states and 185 transitions. [2025-02-08 01:06:50,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 132 transitions, 791 flow [2025-02-08 01:06:50,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 132 transitions, 749 flow, removed 15 selfloop flow, removed 7 redundant places. [2025-02-08 01:06:50,383 INFO L231 Difference]: Finished difference. Result has 75 places, 50 transitions, 235 flow [2025-02-08 01:06:50,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=235, PETRI_PLACES=75, PETRI_TRANSITIONS=50} [2025-02-08 01:06:50,384 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2025-02-08 01:06:50,384 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 50 transitions, 235 flow [2025-02-08 01:06:50,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 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) [2025-02-08 01:06:50,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:50,385 INFO L206 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] [2025-02-08 01:06:50,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 01:06:50,385 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:50,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash -802543102, now seen corresponding path program 6 times [2025-02-08 01:06:50,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:50,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334569706] [2025-02-08 01:06:50,387 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 01:06:50,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:50,398 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:50,480 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:50,481 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 01:06:50,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:53,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:53,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334569706] [2025-02-08 01:06:53,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334569706] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:53,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:53,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-08 01:06:53,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060502404] [2025-02-08 01:06:53,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:53,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 01:06:53,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:53,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 01:06:53,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:06:53,090 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:53,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 235 flow. Second operand has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 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) [2025-02-08 01:06:53,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:53,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:53,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:53,803 INFO L124 PetriNetUnfolderBase]: 1360/2263 cut-off events. [2025-02-08 01:06:53,803 INFO L125 PetriNetUnfolderBase]: For 2077/2080 co-relation queries the response was YES. [2025-02-08 01:06:53,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6580 conditions, 2263 events. 1360/2263 cut-off events. For 2077/2080 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10691 event pairs, 208 based on Foata normal form. 8/2268 useless extension candidates. Maximal degree in co-relation 6556. Up to 1137 conditions per place. [2025-02-08 01:06:53,818 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 64 selfloop transitions, 10 changer transitions 30/109 dead transitions. [2025-02-08 01:06:53,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 109 transitions, 649 flow [2025-02-08 01:06:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:06:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 01:06:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 160 transitions. [2025-02-08 01:06:53,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2025-02-08 01:06:53,819 INFO L175 Difference]: Start difference. First operand has 75 places, 50 transitions, 235 flow. Second operand 9 states and 160 transitions. [2025-02-08 01:06:53,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 109 transitions, 649 flow [2025-02-08 01:06:53,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 624 flow, removed 8 selfloop flow, removed 8 redundant places. [2025-02-08 01:06:53,827 INFO L231 Difference]: Finished difference. Result has 74 places, 52 transitions, 259 flow [2025-02-08 01:06:53,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=259, PETRI_PLACES=74, PETRI_TRANSITIONS=52} [2025-02-08 01:06:53,828 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2025-02-08 01:06:53,828 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 52 transitions, 259 flow [2025-02-08 01:06:53,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.866666666666667) internal successors, (148), 15 states have internal predecessors, (148), 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) [2025-02-08 01:06:53,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:53,828 INFO L206 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] [2025-02-08 01:06:53,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 01:06:53,828 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:53,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:53,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1088663090, now seen corresponding path program 7 times [2025-02-08 01:06:53,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:53,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697679135] [2025-02-08 01:06:53,833 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 01:06:53,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:53,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:53,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:53,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:53,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:55,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:55,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697679135] [2025-02-08 01:06:55,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697679135] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:55,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:55,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-08 01:06:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589992116] [2025-02-08 01:06:55,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:55,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 01:06:55,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:55,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 01:06:55,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-02-08 01:06:55,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:55,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 52 transitions, 259 flow. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 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) [2025-02-08 01:06:55,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:55,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:55,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:56,211 INFO L124 PetriNetUnfolderBase]: 1572/2574 cut-off events. [2025-02-08 01:06:56,211 INFO L125 PetriNetUnfolderBase]: For 2592/2595 co-relation queries the response was YES. [2025-02-08 01:06:56,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7635 conditions, 2574 events. 1572/2574 cut-off events. For 2592/2595 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 12198 event pairs, 394 based on Foata normal form. 8/2578 useless extension candidates. Maximal degree in co-relation 7613. Up to 1220 conditions per place. [2025-02-08 01:06:56,220 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 43 selfloop transitions, 8 changer transitions 64/120 dead transitions. [2025-02-08 01:06:56,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 120 transitions, 750 flow [2025-02-08 01:06:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:06:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:06:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2025-02-08 01:06:56,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4119047619047619 [2025-02-08 01:06:56,222 INFO L175 Difference]: Start difference. First operand has 74 places, 52 transitions, 259 flow. Second operand 10 states and 173 transitions. [2025-02-08 01:06:56,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 120 transitions, 750 flow [2025-02-08 01:06:56,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 120 transitions, 723 flow, removed 7 selfloop flow, removed 7 redundant places. [2025-02-08 01:06:56,227 INFO L231 Difference]: Finished difference. Result has 79 places, 46 transitions, 226 flow [2025-02-08 01:06:56,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=226, PETRI_PLACES=79, PETRI_TRANSITIONS=46} [2025-02-08 01:06:56,228 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2025-02-08 01:06:56,228 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 46 transitions, 226 flow [2025-02-08 01:06:56,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 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) [2025-02-08 01:06:56,229 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:56,229 INFO L206 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] [2025-02-08 01:06:56,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 01:06:56,229 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 01:06:56,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:56,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1442596228, now seen corresponding path program 8 times [2025-02-08 01:06:56,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:56,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402183132] [2025-02-08 01:06:56,230 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:06:56,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:56,241 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-02-08 01:06:56,352 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 01:06:56,352 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:06:56,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:58,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:58,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402183132] [2025-02-08 01:06:58,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402183132] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:58,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:58,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-08 01:06:58,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350135164] [2025-02-08 01:06:58,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:58,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 01:06:58,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:58,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 01:06:58,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:06:58,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-08 01:06:58,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 46 transitions, 226 flow. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 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) [2025-02-08 01:06:58,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:58,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-08 01:06:58,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:59,345 INFO L124 PetriNetUnfolderBase]: 530/889 cut-off events. [2025-02-08 01:06:59,346 INFO L125 PetriNetUnfolderBase]: For 985/988 co-relation queries the response was YES. [2025-02-08 01:06:59,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2746 conditions, 889 events. 530/889 cut-off events. For 985/988 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3227 event pairs, 112 based on Foata normal form. 8/894 useless extension candidates. Maximal degree in co-relation 2732. Up to 526 conditions per place. [2025-02-08 01:06:59,348 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2025-02-08 01:06:59,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 65 transitions, 404 flow [2025-02-08 01:06:59,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:06:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 01:06:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 127 transitions. [2025-02-08 01:06:59,349 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.335978835978836 [2025-02-08 01:06:59,349 INFO L175 Difference]: Start difference. First operand has 79 places, 46 transitions, 226 flow. Second operand 9 states and 127 transitions. [2025-02-08 01:06:59,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 65 transitions, 404 flow [2025-02-08 01:06:59,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 370 flow, removed 9 selfloop flow, removed 10 redundant places. [2025-02-08 01:06:59,352 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2025-02-08 01:06:59,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2025-02-08 01:06:59,353 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 21 predicate places. [2025-02-08 01:06:59,354 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2025-02-08 01:06:59,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 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) [2025-02-08 01:06:59,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2025-02-08 01:06:59,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2025-02-08 01:06:59,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2025-02-08 01:06:59,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-02-08 01:06:59,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-02-08 01:06:59,356 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2025-02-08 01:06:59,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 01:06:59,357 INFO L422 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1] [2025-02-08 01:06:59,361 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:06:59,361 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:06:59,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:06:59 BasicIcfg [2025-02-08 01:06:59,365 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:06:59,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:06:59,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:06:59,366 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:06:59,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:27" (3/4) ... [2025-02-08 01:06:59,367 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:06:59,369 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 01:06:59,369 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 01:06:59,369 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 01:06:59,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2025-02-08 01:06:59,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 01:06:59,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 01:06:59,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 01:06:59,440 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:06:59,440 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:06:59,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:06:59,441 INFO L158 Benchmark]: Toolchain (without parser) took 33217.00ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 110.5MB in the beginning and 933.0MB in the end (delta: -822.5MB). Peak memory consumption was 730.0MB. Max. memory is 16.1GB. [2025-02-08 01:06:59,441 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:06:59,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.72ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 82.7MB in the end (delta: 27.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:06:59,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.49ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 79.3MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:06:59,444 INFO L158 Benchmark]: Boogie Preprocessor took 36.87ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 74.4MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:06:59,444 INFO L158 Benchmark]: IcfgBuilder took 830.29ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 53.8MB in the end (delta: 20.1MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2025-02-08 01:06:59,444 INFO L158 Benchmark]: TraceAbstraction took 31707.42ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 53.1MB in the beginning and 941.3MB in the end (delta: -888.3MB). Peak memory consumption was 664.7MB. Max. memory is 16.1GB. [2025-02-08 01:06:59,445 INFO L158 Benchmark]: Witness Printer took 74.50ms. Allocated memory is still 1.7GB. Free memory was 941.3MB in the beginning and 933.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:06:59,446 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.72ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 82.7MB in the end (delta: 27.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.49ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 79.3MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.87ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 74.4MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 830.29ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 53.8MB in the end (delta: 20.1MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * TraceAbstraction took 31707.42ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 53.1MB in the beginning and 941.3MB in the end (delta: -888.3MB). Peak memory consumption was 664.7MB. Max. memory is 16.1GB. * Witness Printer took 74.50ms. Allocated memory is still 1.7GB. Free memory was 941.3MB in the beginning and 933.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 6 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: 31.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1061 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1043 mSDsluCounter, 524 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 508 mSDsCounter, 281 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4680 IncrementalHoareTripleChecker+Invalid, 4961 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 281 mSolverCounterUnsat, 16 mSDtfsCounter, 4680 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=10, InterpolantAutomatonStates: 95, 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: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 3701 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:06:59,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE