./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 c00e63dc 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-?-c00e63d-m [2025-02-06 04:26:16,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:26:16,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:26:16,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:26:16,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:26:16,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:26:16,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:26:16,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:26:16,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:26:16,803 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:26:16,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:26:16,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:26:16,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:26:16,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:26:16,805 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:26:16,806 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:26:16,806 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:26:16,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:26:16,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:26:16,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:26:16,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:26:16,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:26:16,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:26:16,809 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 [2025-02-06 04:26:17,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:26:17,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:26:17,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:26:17,144 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:26:17,144 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:26:17,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-02-06 04:26:18,495 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c594d805e/9d45fcfabbf34790ac8f965b797e79c3/FLAG31e25b958 [2025-02-06 04:26:18,904 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:26:18,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-02-06 04:26:18,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c594d805e/9d45fcfabbf34790ac8f965b797e79c3/FLAG31e25b958 [2025-02-06 04:26:18,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c594d805e/9d45fcfabbf34790ac8f965b797e79c3 [2025-02-06 04:26:18,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:26:18,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:26:18,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:26:18,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:26:18,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:26:18,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:26:18" (1/1) ... [2025-02-06 04:26:18,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7885d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:18, skipping insertion in model container [2025-02-06 04:26:18,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:26:18" (1/1) ... [2025-02-06 04:26:19,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:26:19,167 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] [2025-02-06 04:26:19,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:26:19,451 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:26:19,465 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] [2025-02-06 04:26:19,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:26:19,560 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:26:19,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19 WrapperNode [2025-02-06 04:26:19,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:26:19,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:26:19,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:26:19,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:26:19,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,617 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2025-02-06 04:26:19,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:26:19,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:26:19,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:26:19,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:26:19,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,649 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]. [2025-02-06 04:26:19,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,663 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:26:19,679 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:26:19,679 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:26:19,679 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:26:19,685 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (1/1) ... [2025-02-06 04:26:19,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:26:19,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:26:19,716 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) [2025-02-06 04:26:19,719 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 [2025-02-06 04:26:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:26:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:26:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 04:26:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 04:26:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 04:26:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 04:26:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 04:26:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 04:26:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:26:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:26:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:26:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:26:19,742 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:26:19,865 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:26:19,869 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:26:20,386 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:26:20,387 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:26:20,732 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:26:20,732 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:26:20,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:26:20 BoogieIcfgContainer [2025-02-06 04:26:20,733 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:26:20,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:26:20,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:26:20,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:26:20,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:26:18" (1/3) ... [2025-02-06 04:26:20,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1a59f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:26:20, skipping insertion in model container [2025-02-06 04:26:20,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:26:19" (2/3) ... [2025-02-06 04:26:20,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1a59f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:26:20, skipping insertion in model container [2025-02-06 04:26:20,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:26:20" (3/3) ... [2025-02-06 04:26:20,745 INFO L128 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2025-02-06 04:26:20,761 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:26:20,763 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. [2025-02-06 04:26:20,764 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:26:20,858 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 04:26:20,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2025-02-06 04:26:20,928 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2025-02-06 04:26:20,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:26:20,936 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 81 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. [2025-02-06 04:26:20,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2025-02-06 04:26:20,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2025-02-06 04:26:20,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:26:20,963 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;@4fc4e80d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:26:20,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 04:26:20,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:26:20,977 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-02-06 04:26:20,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:26:20,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:20,978 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:20,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-06 04:26:20,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1231877584, now seen corresponding path program 1 times [2025-02-06 04:26:20,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:20,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577017087] [2025-02-06 04:26:20,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:20,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:21,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 04:26:21,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 04:26:21,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:21,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:21,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:21,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577017087] [2025-02-06 04:26:21,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577017087] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:21,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:21,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 04:26:21,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558539331] [2025-02-06 04:26:21,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:21,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:26:21,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:21,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:26:21,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:26:21,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-06 04:26:21,538 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) [2025-02-06 04:26:21,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:21,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-06 04:26:21,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:23,387 INFO L124 PetriNetUnfolderBase]: 6894/9909 cut-off events. [2025-02-06 04:26:23,388 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-02-06 04:26:23,410 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 352. Compared 53590 event pairs, 804 based on Foata normal form. 343/10190 useless extension candidates. Maximal degree in co-relation 19768. Up to 8443 conditions per place. [2025-02-06 04:26:23,455 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 46 selfloop transitions, 2 changer transitions 2/56 dead transitions. [2025-02-06 04:26:23,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 56 transitions, 221 flow [2025-02-06 04:26:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:26:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:26:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-02-06 04:26:23,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2025-02-06 04:26:23,473 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 80 transitions. [2025-02-06 04:26:23,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 56 transitions, 221 flow [2025-02-06 04:26:23,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 04:26:23,486 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2025-02-06 04:26:23,489 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} [2025-02-06 04:26:23,492 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2025-02-06 04:26:23,492 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2025-02-06 04:26:23,492 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) [2025-02-06 04:26:23,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:23,493 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:26:23,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:26:23,493 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)] === [2025-02-06 04:26:23,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1841972588, now seen corresponding path program 1 times [2025-02-06 04:26:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:23,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656609546] [2025-02-06 04:26:23,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:23,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 04:26:23,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 04:26:23,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:23,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:23,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:23,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656609546] [2025-02-06 04:26:23,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656609546] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:23,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:23,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:26:23,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695814889] [2025-02-06 04:26:23,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:23,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 04:26:23,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:23,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 04:26:23,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 04:26:23,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-06 04:26:23,934 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) [2025-02-06 04:26:23,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:23,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-06 04:26:23,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:25,094 INFO L124 PetriNetUnfolderBase]: 4801/7698 cut-off events. [2025-02-06 04:26:25,095 INFO L125 PetriNetUnfolderBase]: For 267/267 co-relation queries the response was YES. [2025-02-06 04:26:25,109 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 283. Compared 47288 event pairs, 994 based on Foata normal form. 343/7810 useless extension candidates. Maximal degree in co-relation 15106. Up to 3626 conditions per place. [2025-02-06 04:26:25,139 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 63 selfloop transitions, 5 changer transitions 1/75 dead transitions. [2025-02-06 04:26:25,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 75 transitions, 306 flow [2025-02-06 04:26:25,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 04:26:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 04:26:25,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2025-02-06 04:26:25,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2025-02-06 04:26:25,142 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 4 states and 107 transitions. [2025-02-06 04:26:25,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 75 transitions, 306 flow [2025-02-06 04:26:25,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 75 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:26:25,147 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2025-02-06 04:26:25,147 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} [2025-02-06 04:26:25,148 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2025-02-06 04:26:25,148 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2025-02-06 04:26:25,148 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) [2025-02-06 04:26:25,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:25,149 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] [2025-02-06 04:26:25,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:26:25,149 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)] === [2025-02-06 04:26:25,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:25,152 INFO L85 PathProgramCache]: Analyzing trace with hash -596812587, now seen corresponding path program 1 times [2025-02-06 04:26:25,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:25,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167659724] [2025-02-06 04:26:25,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:25,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:25,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 04:26:25,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 04:26:25,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:25,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:25,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:25,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167659724] [2025-02-06 04:26:25,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167659724] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:25,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:25,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:26:25,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245545043] [2025-02-06 04:26:25,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:25,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:26:25,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:25,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:26:25,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:26:25,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-06 04:26:25,541 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) [2025-02-06 04:26:25,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:25,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-06 04:26:25,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:26,220 INFO L124 PetriNetUnfolderBase]: 2701/4273 cut-off events. [2025-02-06 04:26:26,220 INFO L125 PetriNetUnfolderBase]: For 785/785 co-relation queries the response was YES. [2025-02-06 04:26:26,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9651 conditions, 4273 events. 2701/4273 cut-off events. For 785/785 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 22247 event pairs, 651 based on Foata normal form. 218/4410 useless extension candidates. Maximal degree in co-relation 9639. Up to 1515 conditions per place. [2025-02-06 04:26:26,247 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 81 selfloop transitions, 8 changer transitions 1/96 dead transitions. [2025-02-06 04:26:26,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 96 transitions, 427 flow [2025-02-06 04:26:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:26:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 04:26:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2025-02-06 04:26:26,249 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2025-02-06 04:26:26,249 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 5 states and 137 transitions. [2025-02-06 04:26:26,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 96 transitions, 427 flow [2025-02-06 04:26:26,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 96 transitions, 417 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 04:26:26,253 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 152 flow [2025-02-06 04:26:26,254 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} [2025-02-06 04:26:26,255 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2025-02-06 04:26:26,255 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 152 flow [2025-02-06 04:26:26,255 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) [2025-02-06 04:26:26,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:26,255 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] [2025-02-06 04:26:26,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:26:26,256 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)] === [2025-02-06 04:26:26,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:26,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1876172310, now seen corresponding path program 1 times [2025-02-06 04:26:26,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:26,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826151029] [2025-02-06 04:26:26,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:26,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 04:26:26,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 04:26:26,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:26,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:26,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:26,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826151029] [2025-02-06 04:26:26,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826151029] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:26,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:26,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:26:26,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76144345] [2025-02-06 04:26:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:26,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:26:26,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:26,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:26:26,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:26:26,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-06 04:26:26,816 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) [2025-02-06 04:26:26,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:26,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-06 04:26:26,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:27,425 INFO L124 PetriNetUnfolderBase]: 1786/2728 cut-off events. [2025-02-06 04:26:27,425 INFO L125 PetriNetUnfolderBase]: For 1492/1492 co-relation queries the response was YES. [2025-02-06 04:26:27,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6675 conditions, 2728 events. 1786/2728 cut-off events. For 1492/1492 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12554 event pairs, 594 based on Foata normal form. 68/2775 useless extension candidates. Maximal degree in co-relation 6661. Up to 1050 conditions per place. [2025-02-06 04:26:27,441 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 67 selfloop transitions, 11 changer transitions 1/85 dead transitions. [2025-02-06 04:26:27,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 406 flow [2025-02-06 04:26:27,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2025-02-06 04:26:27,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-02-06 04:26:27,443 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 152 flow. Second operand 6 states and 135 transitions. [2025-02-06 04:26:27,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 406 flow [2025-02-06 04:26:27,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 85 transitions, 381 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-06 04:26:27,457 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 166 flow [2025-02-06 04:26:27,458 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} [2025-02-06 04:26:27,459 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2025-02-06 04:26:27,459 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 166 flow [2025-02-06 04:26:27,459 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) [2025-02-06 04:26:27,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:27,460 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] [2025-02-06 04:26:27,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:26:27,460 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)] === [2025-02-06 04:26:27,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:27,460 INFO L85 PathProgramCache]: Analyzing trace with hash 348115948, now seen corresponding path program 1 times [2025-02-06 04:26:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:27,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595530378] [2025-02-06 04:26:27,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:26:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:27,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 04:26:27,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 04:26:27,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:26:27,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:28,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:28,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595530378] [2025-02-06 04:26:28,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595530378] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:28,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:28,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:26:28,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400733201] [2025-02-06 04:26:28,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:28,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:26:28,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:28,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:26:28,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:26:28,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-06 04:26:28,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 166 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) [2025-02-06 04:26:28,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:28,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-06 04:26:28,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:29,067 INFO L124 PetriNetUnfolderBase]: 2462/3764 cut-off events. [2025-02-06 04:26:29,068 INFO L125 PetriNetUnfolderBase]: For 2424/2424 co-relation queries the response was YES. [2025-02-06 04:26:29,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9408 conditions, 3764 events. 2462/3764 cut-off events. For 2424/2424 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 18543 event pairs, 220 based on Foata normal form. 8/3764 useless extension candidates. Maximal degree in co-relation 9393. Up to 2154 conditions per place. [2025-02-06 04:26:29,080 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 50 selfloop transitions, 1 changer transitions 37/93 dead transitions. [2025-02-06 04:26:29,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 93 transitions, 544 flow [2025-02-06 04:26:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:26:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:26:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2025-02-06 04:26:29,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2025-02-06 04:26:29,082 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 166 flow. Second operand 6 states and 123 transitions. [2025-02-06 04:26:29,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 93 transitions, 544 flow [2025-02-06 04:26:29,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 93 transitions, 419 flow, removed 20 selfloop flow, removed 8 redundant places. [2025-02-06 04:26:29,097 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 121 flow [2025-02-06 04:26:29,097 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=121, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2025-02-06 04:26:29,098 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2025-02-06 04:26:29,098 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 121 flow [2025-02-06 04:26:29,098 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) [2025-02-06 04:26:29,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:29,098 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] [2025-02-06 04:26:29,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:26:29,099 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)] === [2025-02-06 04:26:29,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:29,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1706681736, now seen corresponding path program 2 times [2025-02-06 04:26:29,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:29,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785334171] [2025-02-06 04:26:29,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:26:29,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:29,113 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-02-06 04:26:29,319 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 04:26:29,319 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:26:29,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:33,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:33,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785334171] [2025-02-06 04:26:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785334171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:33,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:33,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 04:26:33,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097789010] [2025-02-06 04:26:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:33,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 04:26:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:33,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 04:26:33,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:26:33,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-06 04:26:33,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 121 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) [2025-02-06 04:26:33,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:33,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-06 04:26:33,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:35,332 INFO L124 PetriNetUnfolderBase]: 3510/5463 cut-off events. [2025-02-06 04:26:35,333 INFO L125 PetriNetUnfolderBase]: For 987/987 co-relation queries the response was YES. [2025-02-06 04:26:35,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12096 conditions, 5463 events. 3510/5463 cut-off events. For 987/987 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 29179 event pairs, 512 based on Foata normal form. 16/5468 useless extension candidates. Maximal degree in co-relation 12082. Up to 1421 conditions per place. [2025-02-06 04:26:35,355 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 43 selfloop transitions, 9 changer transitions 164/221 dead transitions. [2025-02-06 04:26:35,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 221 transitions, 1053 flow [2025-02-06 04:26:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 04:26:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 04:26:35,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 320 transitions. [2025-02-06 04:26:35,358 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4481792717086835 [2025-02-06 04:26:35,358 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 121 flow. Second operand 17 states and 320 transitions. [2025-02-06 04:26:35,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 221 transitions, 1053 flow [2025-02-06 04:26:35,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 221 transitions, 1032 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-02-06 04:26:35,362 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 188 flow [2025-02-06 04:26:35,362 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=188, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2025-02-06 04:26:35,363 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2025-02-06 04:26:35,363 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 188 flow [2025-02-06 04:26:35,363 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) [2025-02-06 04:26:35,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:26:35,363 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] [2025-02-06 04:26:35,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:26:35,363 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)] === [2025-02-06 04:26:35,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:26:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash 626841718, now seen corresponding path program 3 times [2025-02-06 04:26:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:26:35,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445581447] [2025-02-06 04:26:35,364 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:26:35,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:26:35,379 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 1 equivalence classes. [2025-02-06 04:26:35,583 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 04:26:35,583 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 04:26:35,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:26:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:26:39,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:26:39,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445581447] [2025-02-06 04:26:39,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445581447] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:26:39,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:26:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 04:26:39,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090921212] [2025-02-06 04:26:39,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:26:39,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 04:26:39,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:26:39,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 04:26:39,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2025-02-06 04:26:39,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-02-06 04:26:39,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 188 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) [2025-02-06 04:26:39,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:26:39,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-02-06 04:26:39,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:26:40,413 INFO L124 PetriNetUnfolderBase]: 1565/2490 cut-off events. [2025-02-06 04:26:40,414 INFO L125 PetriNetUnfolderBase]: For 1959/1959 co-relation queries the response was YES. [2025-02-06 04:26:40,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7486 conditions, 2490 events. 1565/2490 cut-off events. For 1959/1959 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12053 event pairs, 343 based on Foata normal form. 8/2495 useless extension candidates. Maximal degree in co-relation 7472. Up to 977 conditions per place. [2025-02-06 04:26:40,425 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2025-02-06 04:26:40,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 112 transitions, 667 flow [2025-02-06 04:26:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 04:26:40,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 04:26:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions. [2025-02-06 04:26:40,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2025-02-06 04:26:40,427 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 188 flow. Second operand 10 states and 165 transitions. [2025-02-06 04:26:40,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 112 transitions, 667 flow [2025-02-06 04:26:40,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 112 transitions, 621 flow, removed 19 selfloop flow, removed 7 redundant places. [2025-02-06 04:26:40,437 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2025-02-06 04:26:40,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2025-02-06 04:26:40,437 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2025-02-06 04:26:40,438 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2025-02-06 04:26:40,439 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) [2025-02-06 04:26:40,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2025-02-06 04:26:40,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2025-02-06 04:26:40,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2025-02-06 04:26:40,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-02-06 04:26:40,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-02-06 04:26:40,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2025-02-06 04:26:40,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 04:26:40,443 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2025-02-06 04:26:40,448 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 04:26:40,448 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 04:26:40,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 04:26:40 BasicIcfg [2025-02-06 04:26:40,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 04:26:40,455 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 04:26:40,455 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 04:26:40,457 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 04:26:40,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:26:20" (3/4) ... [2025-02-06 04:26:40,459 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 04:26:40,462 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 04:26:40,462 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 04:26:40,462 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 04:26:40,467 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2025-02-06 04:26:40,467 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 04:26:40,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 04:26:40,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 04:26:40,540 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 04:26:40,541 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 04:26:40,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 04:26:40,543 INFO L158 Benchmark]: Toolchain (without parser) took 21594.84ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 103.3MB in the beginning and 732.8MB in the end (delta: -629.5MB). Peak memory consumption was 472.1MB. Max. memory is 16.1GB. [2025-02-06 04:26:40,544 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:26:40,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.44ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 75.7MB in the end (delta: 27.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 04:26:40,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.35ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 72.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:26:40,547 INFO L158 Benchmark]: Boogie Preprocessor took 60.55ms. Allocated memory is still 142.6MB. Free memory was 72.0MB in the beginning and 67.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 04:26:40,548 INFO L158 Benchmark]: IcfgBuilder took 1053.63ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 45.6MB in the end (delta: 21.7MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2025-02-06 04:26:40,548 INFO L158 Benchmark]: TraceAbstraction took 19718.88ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 44.9MB in the beginning and 741.2MB in the end (delta: -696.3MB). Peak memory consumption was 406.5MB. Max. memory is 16.1GB. [2025-02-06 04:26:40,548 INFO L158 Benchmark]: Witness Printer took 87.12ms. Allocated memory is still 1.2GB. Free memory was 741.2MB in the beginning and 732.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 04:26:40,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.44ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 75.7MB in the end (delta: 27.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.35ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 72.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.55ms. Allocated memory is still 142.6MB. Free memory was 72.0MB in the beginning and 67.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1053.63ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 45.6MB in the end (delta: 21.7MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19718.88ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 44.9MB in the beginning and 741.2MB in the end (delta: -696.3MB). Peak memory consumption was 406.5MB. Max. memory is 16.1GB. * Witness Printer took 87.12ms. Allocated memory is still 1.2GB. Free memory was 741.2MB in the beginning and 732.8MB 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: 19.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 528 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 521 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 168 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2118 IncrementalHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 7 mSDtfsCounter, 2118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=6, InterpolantAutomatonStates: 51, 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, 1.2s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2025-02-06 04:26:40,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE