./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:41:20,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:41:20,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:41:20,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:41:20,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:41:20,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:41:20,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:41:20,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:41:20,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:41:20,258 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:41:20,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:41:20,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:41:20,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:41:20,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:41:20,258 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:41:20,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:41:20,258 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:41:20,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:41:20,259 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:41:20,260 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:41:20,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:41:20,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:41:20,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:41:20,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:41:20,261 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2025-02-06 12:41:20,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:41:20,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:41:20,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:41:20,538 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:41:20,538 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:41:20,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2025-02-06 12:41:21,721 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5fc49bb0/f3472a18f0c84008bb8938a66ea22548/FLAG72d23ab7d [2025-02-06 12:41:21,983 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:41:21,984 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2025-02-06 12:41:21,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5fc49bb0/f3472a18f0c84008bb8938a66ea22548/FLAG72d23ab7d [2025-02-06 12:41:22,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5fc49bb0/f3472a18f0c84008bb8938a66ea22548 [2025-02-06 12:41:22,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:41:22,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:41:22,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:41:22,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:41:22,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:41:22,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5ee397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22, skipping insertion in model container [2025-02-06 12:41:22,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:41:22,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:41:22,576 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:41:22,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:41:22,660 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:41:22,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22 WrapperNode [2025-02-06 12:41:22,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:41:22,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:41:22,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:41:22,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:41:22,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,706 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2025-02-06 12:41:22,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:41:22,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:41:22,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:41:22,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:41:22,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,728 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 12:41:22,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,739 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:41:22,750 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:41:22,750 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:41:22,750 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:41:22,751 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (1/1) ... [2025-02-06 12:41:22,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:41:22,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:41:22,781 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 12:41:22,784 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 12:41:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:41:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:41:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:41:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:41:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:41:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:41:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:41:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:41:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 12:41:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 12:41:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:41:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:41:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:41:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:41:22,808 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 12:41:22,923 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:41:22,925 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:41:23,146 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:41:23,148 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:41:23,377 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:41:23,377 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:41:23,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:41:23 BoogieIcfgContainer [2025-02-06 12:41:23,378 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:41:23,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:41:23,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:41:23,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:41:23,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:41:22" (1/3) ... [2025-02-06 12:41:23,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1950c24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:41:23, skipping insertion in model container [2025-02-06 12:41:23,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:22" (2/3) ... [2025-02-06 12:41:23,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1950c24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:41:23, skipping insertion in model container [2025-02-06 12:41:23,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:41:23" (3/3) ... [2025-02-06 12:41:23,385 INFO L128 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2025-02-06 12:41:23,396 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:41:23,399 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix026_power.opt_tso.opt.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-06 12:41:23,399 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:41:23,443 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:41:23,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2025-02-06 12:41:23,504 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2025-02-06 12:41:23,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:23,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-02-06 12:41:23,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2025-02-06 12:41:23,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2025-02-06 12:41:23,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:41:23,537 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=None, 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;@103f3d0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:41:23,538 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:41:23,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:41:23,542 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-06 12:41:23,542 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:23,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:23,543 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:41:23,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:23,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:23,550 INFO L85 PathProgramCache]: Analyzing trace with hash 136208153, now seen corresponding path program 1 times [2025-02-06 12:41:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:23,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611436638] [2025-02-06 12:41:23,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:23,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:23,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:41:23,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:41:23,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:23,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:23,990 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 12:41:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611436638] [2025-02-06 12:41:23,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611436638] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:23,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:23,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:41:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989627526] [2025-02-06 12:41:23,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:24,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:41:24,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:24,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:41:24,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:41:24,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:41:24,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 12:41:24,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:24,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:41:24,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:28,652 INFO L124 PetriNetUnfolderBase]: 50459/67051 cut-off events. [2025-02-06 12:41:28,652 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2025-02-06 12:41:28,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133671 conditions, 67051 events. 50459/67051 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 1942. Compared 410307 event pairs, 6249 based on Foata normal form. 3024/70033 useless extension candidates. Maximal degree in co-relation 133659. Up to 57231 conditions per place. [2025-02-06 12:41:28,976 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2025-02-06 12:41:28,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 302 flow [2025-02-06 12:41:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:41:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:41:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-02-06 12:41:28,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 12:41:28,994 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 108 transitions. [2025-02-06 12:41:28,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 302 flow [2025-02-06 12:41:29,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:41:29,006 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2025-02-06 12:41:29,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2025-02-06 12:41:29,013 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2025-02-06 12:41:29,014 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2025-02-06 12:41:29,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 12:41:29,015 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:29,015 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:29,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:41:29,016 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:29,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:29,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1898000152, now seen corresponding path program 1 times [2025-02-06 12:41:29,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:29,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147164212] [2025-02-06 12:41:29,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:29,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:29,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:41:29,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:41:29,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:29,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:29,114 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 12:41:29,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:29,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147164212] [2025-02-06 12:41:29,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147164212] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:29,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:29,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:41:29,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837744979] [2025-02-06 12:41:29,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:29,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:41:29,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:29,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:41:29,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:41:29,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:29,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 12:41:29,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:29,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:29,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:32,533 INFO L124 PetriNetUnfolderBase]: 45383/63887 cut-off events. [2025-02-06 12:41:32,533 INFO L125 PetriNetUnfolderBase]: For 2352/2352 co-relation queries the response was YES. [2025-02-06 12:41:32,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126269 conditions, 63887 events. 45383/63887 cut-off events. For 2352/2352 co-relation queries the response was YES. Maximal size of possible extension queue 1953. Compared 421731 event pairs, 45383 based on Foata normal form. 1512/65156 useless extension candidates. Maximal degree in co-relation 126259. Up to 59508 conditions per place. [2025-02-06 12:41:32,846 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2025-02-06 12:41:32,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2025-02-06 12:41:32,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:41:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:41:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:41:32,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2025-02-06 12:41:32,847 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:41:32,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2025-02-06 12:41:32,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:41:32,850 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2025-02-06 12:41:32,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-06 12:41:32,852 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2025-02-06 12:41:32,852 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2025-02-06 12:41:32,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 12:41:32,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:32,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:32,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:41:32,853 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:32,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1898001619, now seen corresponding path program 1 times [2025-02-06 12:41:32,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:32,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482182275] [2025-02-06 12:41:32,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:32,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:32,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:41:32,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:41:32,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:32,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:33,113 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 12:41:33,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:33,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482182275] [2025-02-06 12:41:33,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482182275] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:33,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:33,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:41:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090266350] [2025-02-06 12:41:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:41:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:33,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:41:33,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:41:33,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:33,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 12:41:33,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:33,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:33,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:40,869 INFO L124 PetriNetUnfolderBase]: 96259/130007 cut-off events. [2025-02-06 12:41:40,870 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:41,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257769 conditions, 130007 events. 96259/130007 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3934. Compared 858244 event pairs, 26263 based on Foata normal form. 0/127520 useless extension candidates. Maximal degree in co-relation 257763. Up to 56001 conditions per place. [2025-02-06 12:41:41,635 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 62 selfloop transitions, 7 changer transitions 131/206 dead transitions. [2025-02-06 12:41:41,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 206 transitions, 828 flow [2025-02-06 12:41:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:41:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:41:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 301 transitions. [2025-02-06 12:41:41,637 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6193415637860082 [2025-02-06 12:41:41,637 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 301 transitions. [2025-02-06 12:41:41,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 206 transitions, 828 flow [2025-02-06 12:41:41,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 206 transitions, 827 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:41:41,645 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 191 flow [2025-02-06 12:41:41,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=191, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2025-02-06 12:41:41,646 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2025-02-06 12:41:41,646 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 191 flow [2025-02-06 12:41:41,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 12:41:41,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:41,647 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:41:41,647 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:41,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 885907390, now seen corresponding path program 1 times [2025-02-06 12:41:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490279766] [2025-02-06 12:41:41,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:41,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:41:41,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:41:41,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:41,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:41,806 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 12:41:41,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:41,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490279766] [2025-02-06 12:41:41,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490279766] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:41,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:41,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:41:41,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678259333] [2025-02-06 12:41:41,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:41,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:41:41,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:41,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:41:41,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:41:41,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:41,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 12:41:41,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:41,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:41,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:48,815 INFO L124 PetriNetUnfolderBase]: 72191/99487 cut-off events. [2025-02-06 12:41:48,816 INFO L125 PetriNetUnfolderBase]: For 91570/91570 co-relation queries the response was YES. [2025-02-06 12:41:49,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266162 conditions, 99487 events. 72191/99487 cut-off events. For 91570/91570 co-relation queries the response was YES. Maximal size of possible extension queue 2893. Compared 659887 event pairs, 18087 based on Foata normal form. 2480/101950 useless extension candidates. Maximal degree in co-relation 266147. Up to 60721 conditions per place. [2025-02-06 12:41:49,547 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 60 selfloop transitions, 3 changer transitions 89/158 dead transitions. [2025-02-06 12:41:49,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 937 flow [2025-02-06 12:41:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:41:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:41:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 209 transitions. [2025-02-06 12:41:49,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5529100529100529 [2025-02-06 12:41:49,549 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 191 flow. Second operand 7 states and 209 transitions. [2025-02-06 12:41:49,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 937 flow