./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/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-ext/43_NetBSD_sysmon_power_sliced-pthread.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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65'] 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-ext/43_NetBSD_sysmon_power_sliced-pthread.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 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:09:19,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:09:19,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:09:19,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:09:19,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:09:19,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:09:19,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:09:19,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:09:19,954 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:09:19,954 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:09:19,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:09:19,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:09:19,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:09:19,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:09:19,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:09:19,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:09:19,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:09:19,957 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:09:19,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:09:19,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:09:19,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:09:19,958 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 -> 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 [2024-11-07 19:09:20,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:09:20,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:09:20,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:09:20,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:09:20,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:09:20,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-07 19:09:21,478 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:09:21,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:09:21,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-07 19:09:21,823 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39fd18289/f1d65b3d73f042b1a9f8ba81989b5b37/FLAG4b6c55c48 [2024-11-07 19:09:22,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39fd18289/f1d65b3d73f042b1a9f8ba81989b5b37 [2024-11-07 19:09:22,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:09:22,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:09:22,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:09:22,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:09:22,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:09:22,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b79fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22, skipping insertion in model container [2024-11-07 19:09:22,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:09:22,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:09:22,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:09:22,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:09:22,474 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:09:22,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22 WrapperNode [2024-11-07 19:09:22,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:09:22,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:09:22,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:09:22,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:09:22,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,527 INFO L138 Inliner]: procedures = 173, calls = 62, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 478 [2024-11-07 19:09:22,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:09:22,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:09:22,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:09:22,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:09:22,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,551 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-07 19:09:22,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:09:22,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:09:22,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:09:22,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:09:22,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (1/1) ... [2024-11-07 19:09:22,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:09:22,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:09:22,611 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) [2024-11-07 19:09:22,616 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 [2024-11-07 19:09:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-07 19:09:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-07 19:09:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 19:09:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 19:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 19:09:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:09:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:09:22,632 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 19:09:22,751 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:09:22,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:09:23,192 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:09:23,192 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:09:23,675 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:09:23,676 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 19:09:23,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:09:23 BoogieIcfgContainer [2024-11-07 19:09:23,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:09:23,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:09:23,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:09:23,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:09:23,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:09:22" (1/3) ... [2024-11-07 19:09:23,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c255964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:09:23, skipping insertion in model container [2024-11-07 19:09:23,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:09:22" (2/3) ... [2024-11-07 19:09:23,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c255964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:09:23, skipping insertion in model container [2024-11-07 19:09:23,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:09:23" (3/3) ... [2024-11-07 19:09:23,683 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-07 19:09:23,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:09:23,695 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-07 19:09:23,695 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:09:23,764 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:09:23,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 201 transitions, 406 flow [2024-11-07 19:09:23,854 INFO L124 PetriNetUnfolderBase]: 48/205 cut-off events. [2024-11-07 19:09:23,857 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:09:23,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 205 events. 48/205 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 946 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 198. Up to 10 conditions per place. [2024-11-07 19:09:23,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 201 transitions, 406 flow [2024-11-07 19:09:23,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 201 transitions, 406 flow [2024-11-07 19:09:23,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:09:23,878 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;@35f65b3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:09:23,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-07 19:09:23,886 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:09:23,886 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 19:09:23,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:09:23,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:09:23,886 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:09:23,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-07 19:09:23,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:09:23,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1182352, now seen corresponding path program 1 times [2024-11-07 19:09:23,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:09:23,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297801432] [2024-11-07 19:09:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:09:23,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:09:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:09:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:09:24,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:09:24,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297801432] [2024-11-07 19:09:24,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297801432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:09:24,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:09:24,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:09:24,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421283090] [2024-11-07 19:09:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:09:24,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 19:09:24,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:09:24,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 19:09:24,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 19:09:24,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 201 [2024-11-07 19:09:24,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 201 transitions, 406 flow. Second operand has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:09:24,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:09:24,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 201 [2024-11-07 19:09:24,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:09:24,393 INFO L124 PetriNetUnfolderBase]: 132/346 cut-off events. [2024-11-07 19:09:24,393 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:09:24,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 346 events. 132/346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1523 event pairs, 84 based on Foata normal form. 26/327 useless extension candidates. Maximal degree in co-relation 621. Up to 284 conditions per place. [2024-11-07 19:09:24,396 INFO L140 encePairwiseOnDemand]: 185/201 looper letters, 100 selfloop transitions, 0 changer transitions 0/132 dead transitions. [2024-11-07 19:09:24,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 132 transitions, 468 flow [2024-11-07 19:09:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 19:09:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 19:09:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 222 transitions. [2024-11-07 19:09:24,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5522388059701493 [2024-11-07 19:09:24,411 INFO L175 Difference]: Start difference. First operand has 156 places, 201 transitions, 406 flow. Second operand 2 states and 222 transitions. [2024-11-07 19:09:24,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 132 transitions, 468 flow [2024-11-07 19:09:24,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 132 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:09:24,420 INFO L231 Difference]: Finished difference. Result has 112 places, 132 transitions, 268 flow [2024-11-07 19:09:24,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=112, PETRI_TRANSITIONS=132} [2024-11-07 19:09:24,423 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -44 predicate places. [2024-11-07 19:09:24,424 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 132 transitions, 268 flow [2024-11-07 19:09:24,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:09:24,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:09:24,424 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-11-07 19:09:24,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:09:24,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-07 19:09:24,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:09:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1136571478, now seen corresponding path program 1 times [2024-11-07 19:09:24,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:09:24,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452279057] [2024-11-07 19:09:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:09:24,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:09:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:09:24,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 19:09:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:09:24,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 19:09:24,612 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 19:09:24,613 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-07 19:09:24,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (22 of 24 remaining) [2024-11-07 19:09:24,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (21 of 24 remaining) [2024-11-07 19:09:24,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (20 of 24 remaining) [2024-11-07 19:09:24,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (19 of 24 remaining) [2024-11-07 19:09:24,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (18 of 24 remaining) [2024-11-07 19:09:24,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (17 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (16 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (15 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (14 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (13 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (12 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (10 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (8 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (7 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (6 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (4 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (3 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (2 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (1 of 24 remaining) [2024-11-07 19:09:24,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (0 of 24 remaining) [2024-11-07 19:09:24,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:09:24,620 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 19:09:24,623 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 19:09:24,623 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 19:09:24,695 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:09:24,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 396 transitions, 802 flow [2024-11-07 19:09:24,757 INFO L124 PetriNetUnfolderBase]: 96/404 cut-off events. [2024-11-07 19:09:24,757 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:09:24,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 404 events. 96/404 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2416 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 392. Up to 10 conditions per place. [2024-11-07 19:09:24,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 396 transitions, 802 flow [2024-11-07 19:09:24,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 396 transitions, 802 flow [2024-11-07 19:09:24,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:09:24,779 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;@35f65b3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:09:24,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-07 19:09:24,783 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:09:24,783 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 19:09:24,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:09:24,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:09:24,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:09:24,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-07 19:09:24,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:09:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1575580, now seen corresponding path program 1 times [2024-11-07 19:09:24,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:09:24,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658113593] [2024-11-07 19:09:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:09:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:09:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:09:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:09:24,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:09:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658113593] [2024-11-07 19:09:24,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658113593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:09:24,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:09:24,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:09:24,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398610392] [2024-11-07 19:09:24,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:09:24,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 19:09:24,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:09:24,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 19:09:24,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 19:09:24,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 396 [2024-11-07 19:09:24,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 396 transitions, 802 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:09:24,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:09:24,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 396 [2024-11-07 19:09:24,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:09:28,062 INFO L124 PetriNetUnfolderBase]: 28984/48470 cut-off events. [2024-11-07 19:09:28,062 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-11-07 19:09:28,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90479 conditions, 48470 events. 28984/48470 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 397219 event pairs, 22142 based on Foata normal form. 4478/45468 useless extension candidates. Maximal degree in co-relation 88449. Up to 41746 conditions per place. [2024-11-07 19:09:28,468 INFO L140 encePairwiseOnDemand]: 365/396 looper letters, 198 selfloop transitions, 0 changer transitions 0/261 dead transitions. [2024-11-07 19:09:28,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 261 transitions, 928 flow [2024-11-07 19:09:28,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 19:09:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 19:09:28,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 437 transitions. [2024-11-07 19:09:28,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517676767676768 [2024-11-07 19:09:28,473 INFO L175 Difference]: Start difference. First operand has 305 places, 396 transitions, 802 flow. Second operand 2 states and 437 transitions. [2024-11-07 19:09:28,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 261 transitions, 928 flow [2024-11-07 19:09:28,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 261 transitions, 928 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:09:28,480 INFO L231 Difference]: Finished difference. Result has 219 places, 261 transitions, 532 flow [2024-11-07 19:09:28,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=532, PETRI_PLACES=219, PETRI_TRANSITIONS=261} [2024-11-07 19:09:28,482 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -86 predicate places. [2024-11-07 19:09:28,482 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 261 transitions, 532 flow [2024-11-07 19:09:28,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:09:28,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:09:28,482 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2024-11-07 19:09:28,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:09:28,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-07 19:09:28,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:09:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash -402823165, now seen corresponding path program 1 times [2024-11-07 19:09:28,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:09:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248326667] [2024-11-07 19:09:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:09:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:09:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:09:28,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 19:09:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:09:28,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 19:09:28,584 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (33 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (32 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (31 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (30 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (29 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (28 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (27 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (26 of 35 remaining) [2024-11-07 19:09:28,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (25 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (24 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (23 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (22 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (21 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (20 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (19 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (18 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (17 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (16 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (15 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (14 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (13 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (12 of 35 remaining) [2024-11-07 19:09:28,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (11 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (10 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (8 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (7 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (6 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (4 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (3 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (2 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (1 of 35 remaining) [2024-11-07 19:09:28,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (0 of 35 remaining) [2024-11-07 19:09:28,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:09:28,586 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 19:09:28,587 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 19:09:28,587 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 19:09:28,670 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:09:28,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 454 places, 591 transitions, 1200 flow [2024-11-07 19:09:28,735 INFO L124 PetriNetUnfolderBase]: 144/603 cut-off events. [2024-11-07 19:09:28,735 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 19:09:28,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 603 events. 144/603 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4032 event pairs, 0 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 586. Up to 10 conditions per place. [2024-11-07 19:09:28,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 454 places, 591 transitions, 1200 flow [2024-11-07 19:09:28,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 591 transitions, 1200 flow [2024-11-07 19:09:28,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:09:28,761 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;@35f65b3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:09:28,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-07 19:09:28,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:09:28,763 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 19:09:28,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:09:28,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:09:28,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:09:28,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-07 19:09:28,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:09:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2162443, now seen corresponding path program 1 times [2024-11-07 19:09:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:09:28,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54592226] [2024-11-07 19:09:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:09:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:09:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:09:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:09:28,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:09:28,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54592226] [2024-11-07 19:09:28,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54592226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:09:28,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:09:28,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:09:28,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783734501] [2024-11-07 19:09:28,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:09:28,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 19:09:28,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:09:28,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 19:09:28,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 19:09:28,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 591 [2024-11-07 19:09:28,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 591 transitions, 1200 flow. Second operand has 2 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:09:28,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:09:28,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 591 [2024-11-07 19:09:28,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand