./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c --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/weaver/popl20-nonblocking-cntr-alt.wvr.c', '-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', '0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461'] 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/weaver/popl20-nonblocking-cntr-alt.wvr.c -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 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:37:24,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:37:24,265 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:37:24,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:37:24,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:37:24,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:37:24,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:37:24,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:37:24,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:37:24,305 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:37:24,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:37:24,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:37:24,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:37:24,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:37:24,307 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:37:24,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:37:24,308 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:37:24,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:37:24,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:37:24,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:37:24,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:37:24,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:37:24,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:37:24,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:37:24,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:37:24,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:37:24,311 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 -> 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 [2024-11-07 19:37:24,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:37:24,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:37:24,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:37:24,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:37:24,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:37:24,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-11-07 19:37:25,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:37:26,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:37:26,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-11-07 19:37:26,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8dd6e2c17/5812c99e6e084bc2ba817b0071b6815d/FLAG28f41a91e [2024-11-07 19:37:26,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8dd6e2c17/5812c99e6e084bc2ba817b0071b6815d [2024-11-07 19:37:26,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:37:26,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:37:26,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:37:26,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:37:26,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:37:26,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf6a649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26, skipping insertion in model container [2024-11-07 19:37:26,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:37:26,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:37:26,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:37:26,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:37:26,602 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:37:26,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26 WrapperNode [2024-11-07 19:37:26,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:37:26,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:37:26,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:37:26,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:37:26,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,631 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2024-11-07 19:37:26,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:37:26,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:37:26,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:37:26,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:37:26,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,660 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 19:37:26,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:37:26,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:37:26,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:37:26,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:37:26,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (1/1) ... [2024-11-07 19:37:26,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:37:26,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:26,720 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 19:37:26,723 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 19:37:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:37:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:37:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:37:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:37:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:37:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:37:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 19:37:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 19:37:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:37:26,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:37:26,749 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 19:37:26,816 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:37:26,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:37:26,968 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:37:26,968 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:37:27,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:37:27,094 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:37:27,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:37:27 BoogieIcfgContainer [2024-11-07 19:37:27,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:37:27,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:37:27,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:37:27,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:37:27,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:37:26" (1/3) ... [2024-11-07 19:37:27,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1740711f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:37:27, skipping insertion in model container [2024-11-07 19:37:27,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:37:26" (2/3) ... [2024-11-07 19:37:27,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1740711f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:37:27, skipping insertion in model container [2024-11-07 19:37:27,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:37:27" (3/3) ... [2024-11-07 19:37:27,106 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2024-11-07 19:37:27,120 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:37:27,120 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:37:27,121 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:37:27,166 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:37:27,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 60 flow [2024-11-07 19:37:27,216 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2024-11-07 19:37:27,220 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:37:27,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 14. Up to 2 conditions per place. [2024-11-07 19:37:27,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 23 transitions, 60 flow [2024-11-07 19:37:27,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 20 transitions, 52 flow [2024-11-07 19:37:27,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:37:27,254 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;@356d507, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:37:27,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:37:27,283 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:37:27,284 INFO L124 PetriNetUnfolderBase]: 2/17 cut-off events. [2024-11-07 19:37:27,284 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:37:27,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:27,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:27,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:27,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1974399478, now seen corresponding path program 1 times [2024-11-07 19:37:27,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:27,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878207618] [2024-11-07 19:37:27,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:27,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:27,564 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 19:37:27,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:27,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878207618] [2024-11-07 19:37:27,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878207618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:37:27,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:37:27,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:37:27,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729900347] [2024-11-07 19:37:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:37:27,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:37:27,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:27,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:37:27,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:37:27,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-07 19:37:27,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 19:37:27,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:27,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-07 19:37:27,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:27,709 INFO L124 PetriNetUnfolderBase]: 61/123 cut-off events. [2024-11-07 19:37:27,709 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-07 19:37:27,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 123 events. 61/123 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 370 event pairs, 31 based on Foata normal form. 10/128 useless extension candidates. Maximal degree in co-relation 213. Up to 86 conditions per place. [2024-11-07 19:37:27,715 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 19 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2024-11-07 19:37:27,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 109 flow [2024-11-07 19:37:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:37:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:37:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2024-11-07 19:37:27,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-11-07 19:37:27,731 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 52 flow. Second operand 4 states and 48 transitions. [2024-11-07 19:37:27,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 109 flow [2024-11-07 19:37:27,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 99 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:37:27,739 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 54 flow [2024-11-07 19:37:27,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2024-11-07 19:37:27,746 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-11-07 19:37:27,747 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 54 flow [2024-11-07 19:37:27,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 19:37:27,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:27,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:27,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:37:27,749 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:27,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:27,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1080039208, now seen corresponding path program 1 times [2024-11-07 19:37:27,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:27,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719934950] [2024-11-07 19:37:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:27,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:37:27,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:27,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719934950] [2024-11-07 19:37:27,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719934950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:37:27,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:37:27,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:37:27,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402314165] [2024-11-07 19:37:27,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:37:27,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:37:27,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:27,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:37:27,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:37:27,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-07 19:37:27,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 19:37:27,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:27,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-07 19:37:27,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:27,977 INFO L124 PetriNetUnfolderBase]: 89/174 cut-off events. [2024-11-07 19:37:27,977 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-07 19:37:27,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 174 events. 89/174 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 589 event pairs, 42 based on Foata normal form. 10/177 useless extension candidates. Maximal degree in co-relation 103. Up to 108 conditions per place. [2024-11-07 19:37:27,983 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 22 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-07 19:37:27,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 133 flow [2024-11-07 19:37:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:37:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:37:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2024-11-07 19:37:27,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-11-07 19:37:27,988 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 54 flow. Second operand 4 states and 48 transitions. [2024-11-07 19:37:27,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 133 flow [2024-11-07 19:37:27,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:37:27,990 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 64 flow [2024-11-07 19:37:27,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2024-11-07 19:37:27,990 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-07 19:37:27,991 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 64 flow [2024-11-07 19:37:27,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 19:37:27,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:27,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:27,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:37:27,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:27,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:27,993 INFO L85 PathProgramCache]: Analyzing trace with hash 978789089, now seen corresponding path program 1 times [2024-11-07 19:37:27,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:27,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442385842] [2024-11-07 19:37:27,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:27,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:28,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442385842] [2024-11-07 19:37:28,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442385842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725421257] [2024-11-07 19:37:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:28,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:28,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:28,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 19:37:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:28,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:28,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:28,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:29,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725421257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:29,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:29,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:29,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860098327] [2024-11-07 19:37:29,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:29,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:29,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:29,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:29,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 64 flow. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:37:29,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:29,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:29,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:31,025 INFO L124 PetriNetUnfolderBase]: 565/989 cut-off events. [2024-11-07 19:37:31,025 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-07 19:37:31,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2452 conditions, 989 events. 565/989 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4577 event pairs, 13 based on Foata normal form. 2/991 useless extension candidates. Maximal degree in co-relation 881. Up to 211 conditions per place. [2024-11-07 19:37:31,033 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 123 selfloop transitions, 111 changer transitions 13/248 dead transitions. [2024-11-07 19:37:31,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 248 transitions, 1234 flow [2024-11-07 19:37:31,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-07 19:37:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2024-11-07 19:37:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 389 transitions. [2024-11-07 19:37:31,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4336677814938685 [2024-11-07 19:37:31,037 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 64 flow. Second operand 39 states and 389 transitions. [2024-11-07 19:37:31,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 248 transitions, 1234 flow [2024-11-07 19:37:31,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 248 transitions, 1220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:37:31,042 INFO L231 Difference]: Finished difference. Result has 78 places, 149 transitions, 912 flow [2024-11-07 19:37:31,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=912, PETRI_PLACES=78, PETRI_TRANSITIONS=149} [2024-11-07 19:37:31,043 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 53 predicate places. [2024-11-07 19:37:31,043 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 149 transitions, 912 flow [2024-11-07 19:37:31,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:37:31,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:31,044 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:31,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 19:37:31,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:31,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:31,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1609550437, now seen corresponding path program 2 times [2024-11-07 19:37:31,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:31,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209379234] [2024-11-07 19:37:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:31,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:31,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:31,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209379234] [2024-11-07 19:37:31,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209379234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087662274] [2024-11-07 19:37:31,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:37:31,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:31,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:31,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:31,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 19:37:31,552 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:37:31,552 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:31,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:31,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:31,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087662274] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:32,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:32,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:32,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392193853] [2024-11-07 19:37:32,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:32,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:32,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:32,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 149 transitions, 912 flow. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:32,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:32,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:32,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:33,228 INFO L124 PetriNetUnfolderBase]: 643/1184 cut-off events. [2024-11-07 19:37:33,230 INFO L125 PetriNetUnfolderBase]: For 2898/2898 co-relation queries the response was YES. [2024-11-07 19:37:33,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 1184 events. 643/1184 cut-off events. For 2898/2898 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5763 event pairs, 31 based on Foata normal form. 3/1187 useless extension candidates. Maximal degree in co-relation 4630. Up to 359 conditions per place. [2024-11-07 19:37:33,242 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 130 selfloop transitions, 115 changer transitions 26/272 dead transitions. [2024-11-07 19:37:33,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 272 transitions, 2184 flow [2024-11-07 19:37:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-07 19:37:33,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-07 19:37:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 275 transitions. [2024-11-07 19:37:33,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4428341384863124 [2024-11-07 19:37:33,245 INFO L175 Difference]: Start difference. First operand has 78 places, 149 transitions, 912 flow. Second operand 27 states and 275 transitions. [2024-11-07 19:37:33,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 272 transitions, 2184 flow [2024-11-07 19:37:33,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 272 transitions, 2088 flow, removed 35 selfloop flow, removed 3 redundant places. [2024-11-07 19:37:33,290 INFO L231 Difference]: Finished difference. Result has 109 places, 178 transitions, 1390 flow [2024-11-07 19:37:33,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1390, PETRI_PLACES=109, PETRI_TRANSITIONS=178} [2024-11-07 19:37:33,293 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 84 predicate places. [2024-11-07 19:37:33,294 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 178 transitions, 1390 flow [2024-11-07 19:37:33,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:33,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:33,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:33,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 19:37:33,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:33,496 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:33,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:33,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1294723099, now seen corresponding path program 3 times [2024-11-07 19:37:33,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:33,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928768252] [2024-11-07 19:37:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:33,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928768252] [2024-11-07 19:37:33,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928768252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022996375] [2024-11-07 19:37:33,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:37:33,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:33,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:33,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:33,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 19:37:33,765 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:37:33,765 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:33,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:33,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:33,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:34,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022996375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:34,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:34,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:34,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129299326] [2024-11-07 19:37:34,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:34,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:34,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:34,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:34,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 178 transitions, 1390 flow. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:34,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:34,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:34,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:35,623 INFO L124 PetriNetUnfolderBase]: 622/1141 cut-off events. [2024-11-07 19:37:35,624 INFO L125 PetriNetUnfolderBase]: For 4871/4871 co-relation queries the response was YES. [2024-11-07 19:37:35,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5303 conditions, 1141 events. 622/1141 cut-off events. For 4871/4871 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5466 event pairs, 28 based on Foata normal form. 1/1142 useless extension candidates. Maximal degree in co-relation 5215. Up to 360 conditions per place. [2024-11-07 19:37:35,634 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 122 selfloop transitions, 124 changer transitions 15/262 dead transitions. [2024-11-07 19:37:35,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 262 transitions, 2458 flow [2024-11-07 19:37:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-07 19:37:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-07 19:37:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 297 transitions. [2024-11-07 19:37:35,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43043478260869567 [2024-11-07 19:37:35,638 INFO L175 Difference]: Start difference. First operand has 109 places, 178 transitions, 1390 flow. Second operand 30 states and 297 transitions. [2024-11-07 19:37:35,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 262 transitions, 2458 flow [2024-11-07 19:37:35,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 262 transitions, 2333 flow, removed 32 selfloop flow, removed 10 redundant places. [2024-11-07 19:37:35,676 INFO L231 Difference]: Finished difference. Result has 130 places, 181 transitions, 1655 flow [2024-11-07 19:37:35,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1655, PETRI_PLACES=130, PETRI_TRANSITIONS=181} [2024-11-07 19:37:35,678 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 105 predicate places. [2024-11-07 19:37:35,679 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 181 transitions, 1655 flow [2024-11-07 19:37:35,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:35,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:35,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:35,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 19:37:35,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:35,882 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:35,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -441805595, now seen corresponding path program 4 times [2024-11-07 19:37:35,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:35,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44351814] [2024-11-07 19:37:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:36,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:36,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44351814] [2024-11-07 19:37:36,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44351814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:36,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600696655] [2024-11-07 19:37:36,076 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:37:36,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:36,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:36,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:36,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 19:37:36,119 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:37:36,119 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:36,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:37:36,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:36,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:36,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600696655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:36,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:36,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2024-11-07 19:37:36,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750405447] [2024-11-07 19:37:36,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:36,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 19:37:36,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 19:37:36,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2024-11-07 19:37:36,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:36,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 181 transitions, 1655 flow. Second operand has 26 states, 26 states have (on average 5.846153846153846) internal successors, (152), 26 states have internal predecessors, (152), 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 19:37:36,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:36,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:36,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:37,892 INFO L124 PetriNetUnfolderBase]: 806/1456 cut-off events. [2024-11-07 19:37:37,892 INFO L125 PetriNetUnfolderBase]: For 6627/6627 co-relation queries the response was YES. [2024-11-07 19:37:37,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7383 conditions, 1456 events. 806/1456 cut-off events. For 6627/6627 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7375 event pairs, 27 based on Foata normal form. 3/1459 useless extension candidates. Maximal degree in co-relation 7290. Up to 318 conditions per place. [2024-11-07 19:37:37,906 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 157 selfloop transitions, 204 changer transitions 16/378 dead transitions. [2024-11-07 19:37:37,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 378 transitions, 4032 flow [2024-11-07 19:37:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-07 19:37:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-11-07 19:37:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 377 transitions. [2024-11-07 19:37:37,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44300822561692127 [2024-11-07 19:37:37,908 INFO L175 Difference]: Start difference. First operand has 130 places, 181 transitions, 1655 flow. Second operand 37 states and 377 transitions. [2024-11-07 19:37:37,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 378 transitions, 4032 flow [2024-11-07 19:37:37,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 378 transitions, 3711 flow, removed 44 selfloop flow, removed 21 redundant places. [2024-11-07 19:37:37,955 INFO L231 Difference]: Finished difference. Result has 155 places, 273 transitions, 2986 flow [2024-11-07 19:37:37,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=2986, PETRI_PLACES=155, PETRI_TRANSITIONS=273} [2024-11-07 19:37:37,956 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 130 predicate places. [2024-11-07 19:37:37,956 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 273 transitions, 2986 flow [2024-11-07 19:37:37,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.846153846153846) internal successors, (152), 26 states have internal predecessors, (152), 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 19:37:37,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:37,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:37,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 19:37:38,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-07 19:37:38,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:38,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:38,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1126948333, now seen corresponding path program 5 times [2024-11-07 19:37:38,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:38,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360706669] [2024-11-07 19:37:38,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:38,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:38,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:38,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360706669] [2024-11-07 19:37:38,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360706669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:38,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678893580] [2024-11-07 19:37:38,242 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:37:38,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:38,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:38,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:38,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 19:37:38,295 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:37:38,296 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:38,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:37:38,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:38,325 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:38,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678893580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:38,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:38,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-07 19:37:38,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11062894] [2024-11-07 19:37:38,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:38,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 19:37:38,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:38,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 19:37:38,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-07 19:37:38,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:37:38,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 273 transitions, 2986 flow. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 19:37:38,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:38,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:37:38,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:38,606 INFO L124 PetriNetUnfolderBase]: 722/1320 cut-off events. [2024-11-07 19:37:38,606 INFO L125 PetriNetUnfolderBase]: For 8934/8944 co-relation queries the response was YES. [2024-11-07 19:37:38,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7536 conditions, 1320 events. 722/1320 cut-off events. For 8934/8944 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6575 event pairs, 26 based on Foata normal form. 27/1344 useless extension candidates. Maximal degree in co-relation 7442. Up to 663 conditions per place. [2024-11-07 19:37:38,620 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 163 selfloop transitions, 106 changer transitions 1/303 dead transitions. [2024-11-07 19:37:38,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 303 transitions, 3776 flow [2024-11-07 19:37:38,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:37:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:37:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2024-11-07 19:37:38,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130434782608696 [2024-11-07 19:37:38,622 INFO L175 Difference]: Start difference. First operand has 155 places, 273 transitions, 2986 flow. Second operand 5 states and 59 transitions. [2024-11-07 19:37:38,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 303 transitions, 3776 flow [2024-11-07 19:37:38,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 303 transitions, 3492 flow, removed 83 selfloop flow, removed 12 redundant places. [2024-11-07 19:37:38,676 INFO L231 Difference]: Finished difference. Result has 143 places, 277 transitions, 3195 flow [2024-11-07 19:37:38,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=2648, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3195, PETRI_PLACES=143, PETRI_TRANSITIONS=277} [2024-11-07 19:37:38,678 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 118 predicate places. [2024-11-07 19:37:38,678 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 277 transitions, 3195 flow [2024-11-07 19:37:38,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 19:37:38,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:38,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:38,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 19:37:38,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:38,882 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:38,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:38,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1781100175, now seen corresponding path program 6 times [2024-11-07 19:37:38,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:38,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269418767] [2024-11-07 19:37:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269418767] [2024-11-07 19:37:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269418767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711424650] [2024-11-07 19:37:39,068 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:37:39,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:39,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:39,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:39,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 19:37:39,109 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:37:39,109 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:39,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:39,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:39,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:39,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711424650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:39,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:39,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:39,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577183388] [2024-11-07 19:37:39,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:39,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:39,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:39,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:39,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:39,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:39,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 277 transitions, 3195 flow. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:39,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:39,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:39,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:40,332 INFO L124 PetriNetUnfolderBase]: 1050/1867 cut-off events. [2024-11-07 19:37:40,333 INFO L125 PetriNetUnfolderBase]: For 11931/11931 co-relation queries the response was YES. [2024-11-07 19:37:40,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11078 conditions, 1867 events. 1050/1867 cut-off events. For 11931/11931 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9912 event pairs, 25 based on Foata normal form. 2/1853 useless extension candidates. Maximal degree in co-relation 10806. Up to 876 conditions per place. [2024-11-07 19:37:40,350 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 192 selfloop transitions, 227 changer transitions 22/442 dead transitions. [2024-11-07 19:37:40,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 442 transitions, 5819 flow [2024-11-07 19:37:40,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 19:37:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 19:37:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 204 transitions. [2024-11-07 19:37:40,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.422360248447205 [2024-11-07 19:37:40,352 INFO L175 Difference]: Start difference. First operand has 143 places, 277 transitions, 3195 flow. Second operand 21 states and 204 transitions. [2024-11-07 19:37:40,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 442 transitions, 5819 flow [2024-11-07 19:37:40,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 442 transitions, 5807 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-07 19:37:40,417 INFO L231 Difference]: Finished difference. Result has 176 places, 372 transitions, 5302 flow [2024-11-07 19:37:40,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=3193, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5302, PETRI_PLACES=176, PETRI_TRANSITIONS=372} [2024-11-07 19:37:40,418 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 151 predicate places. [2024-11-07 19:37:40,419 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 372 transitions, 5302 flow [2024-11-07 19:37:40,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:40,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:40,420 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:40,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 19:37:40,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-07 19:37:40,621 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:40,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -4479771, now seen corresponding path program 7 times [2024-11-07 19:37:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:40,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621363163] [2024-11-07 19:37:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:40,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:40,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621363163] [2024-11-07 19:37:40,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621363163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:40,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037830465] [2024-11-07 19:37:40,839 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:37:40,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:40,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:40,841 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:40,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 19:37:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:40,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:40,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:41,117 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:41,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037830465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:41,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:41,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078614889] [2024-11-07 19:37:41,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:41,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:41,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:41,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:41,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:41,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 372 transitions, 5302 flow. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:37:41,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:41,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:41,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:42,331 INFO L124 PetriNetUnfolderBase]: 1102/1944 cut-off events. [2024-11-07 19:37:42,332 INFO L125 PetriNetUnfolderBase]: For 17665/17665 co-relation queries the response was YES. [2024-11-07 19:37:42,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13400 conditions, 1944 events. 1102/1944 cut-off events. For 17665/17665 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10256 event pairs, 22 based on Foata normal form. 1/1945 useless extension candidates. Maximal degree in co-relation 13281. Up to 938 conditions per place. [2024-11-07 19:37:42,363 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 213 selfloop transitions, 269 changer transitions 7/490 dead transitions. [2024-11-07 19:37:42,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 490 transitions, 7589 flow [2024-11-07 19:37:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 19:37:42,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-07 19:37:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 239 transitions. [2024-11-07 19:37:42,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3996655518394649 [2024-11-07 19:37:42,366 INFO L175 Difference]: Start difference. First operand has 176 places, 372 transitions, 5302 flow. Second operand 26 states and 239 transitions. [2024-11-07 19:37:42,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 490 transitions, 7589 flow [2024-11-07 19:37:42,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 490 transitions, 7516 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-11-07 19:37:42,460 INFO L231 Difference]: Finished difference. Result has 202 places, 437 transitions, 7250 flow [2024-11-07 19:37:42,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=5248, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7250, PETRI_PLACES=202, PETRI_TRANSITIONS=437} [2024-11-07 19:37:42,462 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 177 predicate places. [2024-11-07 19:37:42,463 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 437 transitions, 7250 flow [2024-11-07 19:37:42,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:37:42,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:42,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:42,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 19:37:42,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:42,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:42,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:42,664 INFO L85 PathProgramCache]: Analyzing trace with hash -301608987, now seen corresponding path program 8 times [2024-11-07 19:37:42,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:42,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309865567] [2024-11-07 19:37:42,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:42,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:42,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:42,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309865567] [2024-11-07 19:37:42,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309865567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:42,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366067337] [2024-11-07 19:37:42,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:37:42,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:42,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:42,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:42,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 19:37:42,903 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:37:42,904 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:42,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:42,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:43,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:43,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366067337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:43,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:43,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478718750] [2024-11-07 19:37:43,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:43,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:43,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:43,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:43,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:43,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 437 transitions, 7250 flow. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:43,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:43,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:43,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:44,146 INFO L124 PetriNetUnfolderBase]: 1141/2014 cut-off events. [2024-11-07 19:37:44,146 INFO L125 PetriNetUnfolderBase]: For 23987/23987 co-relation queries the response was YES. [2024-11-07 19:37:44,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15756 conditions, 2014 events. 1141/2014 cut-off events. For 23987/23987 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10638 event pairs, 26 based on Foata normal form. 2/2016 useless extension candidates. Maximal degree in co-relation 15640. Up to 933 conditions per place. [2024-11-07 19:37:44,167 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 236 selfloop transitions, 265 changer transitions 23/525 dead transitions. [2024-11-07 19:37:44,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 525 transitions, 9491 flow [2024-11-07 19:37:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:37:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:37:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 191 transitions. [2024-11-07 19:37:44,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43707093821510296 [2024-11-07 19:37:44,169 INFO L175 Difference]: Start difference. First operand has 202 places, 437 transitions, 7250 flow. Second operand 19 states and 191 transitions. [2024-11-07 19:37:44,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 525 transitions, 9491 flow [2024-11-07 19:37:44,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 525 transitions, 9312 flow, removed 74 selfloop flow, removed 6 redundant places. [2024-11-07 19:37:44,366 INFO L231 Difference]: Finished difference. Result has 222 places, 460 transitions, 8514 flow [2024-11-07 19:37:44,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=7128, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8514, PETRI_PLACES=222, PETRI_TRANSITIONS=460} [2024-11-07 19:37:44,367 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 197 predicate places. [2024-11-07 19:37:44,367 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 460 transitions, 8514 flow [2024-11-07 19:37:44,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 19:37:44,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:44,368 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:44,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 19:37:44,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:44,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:44,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash 551308517, now seen corresponding path program 9 times [2024-11-07 19:37:44,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:44,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338658529] [2024-11-07 19:37:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:44,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:44,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:44,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:44,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338658529] [2024-11-07 19:37:44,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338658529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:44,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722017064] [2024-11-07 19:37:44,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:37:44,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:44,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:44,761 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:44,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 19:37:44,807 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:37:44,807 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:44,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:44,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:44,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:45,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722017064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:45,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:45,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:37:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850765229] [2024-11-07 19:37:45,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:45,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:37:45,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:37:45,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:37:45,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:45,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 460 transitions, 8514 flow. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:37:45,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:45,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:45,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:46,385 INFO L124 PetriNetUnfolderBase]: 1197/2111 cut-off events. [2024-11-07 19:37:46,385 INFO L125 PetriNetUnfolderBase]: For 30433/30433 co-relation queries the response was YES. [2024-11-07 19:37:46,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17999 conditions, 2111 events. 1197/2111 cut-off events. For 30433/30433 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11242 event pairs, 23 based on Foata normal form. 2/2113 useless extension candidates. Maximal degree in co-relation 17858. Up to 936 conditions per place. [2024-11-07 19:37:46,400 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 249 selfloop transitions, 336 changer transitions 13/599 dead transitions. [2024-11-07 19:37:46,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 599 transitions, 11692 flow [2024-11-07 19:37:46,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-07 19:37:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-07 19:37:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 295 transitions. [2024-11-07 19:37:46,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4008152173913043 [2024-11-07 19:37:46,402 INFO L175 Difference]: Start difference. First operand has 222 places, 460 transitions, 8514 flow. Second operand 32 states and 295 transitions. [2024-11-07 19:37:46,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 599 transitions, 11692 flow [2024-11-07 19:37:46,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 599 transitions, 11424 flow, removed 71 selfloop flow, removed 9 redundant places. [2024-11-07 19:37:46,584 INFO L231 Difference]: Finished difference. Result has 249 places, 527 transitions, 10906 flow [2024-11-07 19:37:46,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=8328, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=10906, PETRI_PLACES=249, PETRI_TRANSITIONS=527} [2024-11-07 19:37:46,585 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 224 predicate places. [2024-11-07 19:37:46,585 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 527 transitions, 10906 flow [2024-11-07 19:37:46,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:37:46,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:46,585 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:46,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 19:37:46,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:46,786 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:46,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2040775869, now seen corresponding path program 10 times [2024-11-07 19:37:46,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:46,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676758977] [2024-11-07 19:37:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:46,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:46,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:46,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676758977] [2024-11-07 19:37:46,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676758977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:46,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650593710] [2024-11-07 19:37:46,972 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:37:46,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:46,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:46,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:46,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 19:37:47,014 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:37:47,015 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:47,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:37:47,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:47,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:47,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650593710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:47,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:47,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2024-11-07 19:37:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056344814] [2024-11-07 19:37:47,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:47,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 19:37:47,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:47,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 19:37:47,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2024-11-07 19:37:47,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:47,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 527 transitions, 10906 flow. Second operand has 26 states, 26 states have (on average 5.846153846153846) internal successors, (152), 26 states have internal predecessors, (152), 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 19:37:47,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:47,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:47,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:48,507 INFO L124 PetriNetUnfolderBase]: 1223/2157 cut-off events. [2024-11-07 19:37:48,507 INFO L125 PetriNetUnfolderBase]: For 36100/36100 co-relation queries the response was YES. [2024-11-07 19:37:48,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20022 conditions, 2157 events. 1223/2157 cut-off events. For 36100/36100 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11563 event pairs, 18 based on Foata normal form. 1/2158 useless extension candidates. Maximal degree in co-relation 19885. Up to 1021 conditions per place. [2024-11-07 19:37:48,532 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 205 selfloop transitions, 394 changer transitions 4/604 dead transitions. [2024-11-07 19:37:48,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 604 transitions, 13204 flow [2024-11-07 19:37:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 19:37:48,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 19:37:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 208 transitions. [2024-11-07 19:37:48,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3931947069943289 [2024-11-07 19:37:48,534 INFO L175 Difference]: Start difference. First operand has 249 places, 527 transitions, 10906 flow. Second operand 23 states and 208 transitions. [2024-11-07 19:37:48,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 604 transitions, 13204 flow [2024-11-07 19:37:48,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 604 transitions, 12822 flow, removed 100 selfloop flow, removed 13 redundant places. [2024-11-07 19:37:48,919 INFO L231 Difference]: Finished difference. Result has 262 places, 560 transitions, 12795 flow [2024-11-07 19:37:48,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=10541, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=360, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12795, PETRI_PLACES=262, PETRI_TRANSITIONS=560} [2024-11-07 19:37:48,920 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 237 predicate places. [2024-11-07 19:37:48,920 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 560 transitions, 12795 flow [2024-11-07 19:37:48,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.846153846153846) internal successors, (152), 26 states have internal predecessors, (152), 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 19:37:48,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:48,921 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:48,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 19:37:49,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-07 19:37:49,121 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:49,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:49,122 INFO L85 PathProgramCache]: Analyzing trace with hash 484265376, now seen corresponding path program 11 times [2024-11-07 19:37:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961262106] [2024-11-07 19:37:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:49,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:49,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:49,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961262106] [2024-11-07 19:37:49,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961262106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:49,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763871543] [2024-11-07 19:37:49,364 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:37:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:49,366 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:49,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 19:37:49,413 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:37:49,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:49,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 19:37:49,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:49,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:49,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763871543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:49,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:49,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 35 [2024-11-07 19:37:49,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658377378] [2024-11-07 19:37:49,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:49,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-07 19:37:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-07 19:37:49,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1104, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 19:37:49,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:49,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 560 transitions, 12795 flow. Second operand has 36 states, 36 states have (on average 5.611111111111111) internal successors, (202), 36 states have internal predecessors, (202), 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 19:37:49,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:49,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:49,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:52,033 INFO L124 PetriNetUnfolderBase]: 1467/2618 cut-off events. [2024-11-07 19:37:52,034 INFO L125 PetriNetUnfolderBase]: For 56796/56796 co-relation queries the response was YES. [2024-11-07 19:37:52,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26959 conditions, 2618 events. 1467/2618 cut-off events. For 56796/56796 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 14732 event pairs, 51 based on Foata normal form. 4/2622 useless extension candidates. Maximal degree in co-relation 26812. Up to 602 conditions per place. [2024-11-07 19:37:52,060 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 296 selfloop transitions, 474 changer transitions 56/827 dead transitions. [2024-11-07 19:37:52,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 827 transitions, 18977 flow [2024-11-07 19:37:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-07 19:37:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-07 19:37:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 498 transitions. [2024-11-07 19:37:52,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4085315832649713 [2024-11-07 19:37:52,063 INFO L175 Difference]: Start difference. First operand has 262 places, 560 transitions, 12795 flow. Second operand 53 states and 498 transitions. [2024-11-07 19:37:52,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 827 transitions, 18977 flow [2024-11-07 19:37:52,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 827 transitions, 18681 flow, removed 105 selfloop flow, removed 12 redundant places. [2024-11-07 19:37:52,540 INFO L231 Difference]: Finished difference. Result has 318 places, 673 transitions, 17082 flow [2024-11-07 19:37:52,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=12571, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=379, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=17082, PETRI_PLACES=318, PETRI_TRANSITIONS=673} [2024-11-07 19:37:52,542 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 293 predicate places. [2024-11-07 19:37:52,542 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 673 transitions, 17082 flow [2024-11-07 19:37:52,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.611111111111111) internal successors, (202), 36 states have internal predecessors, (202), 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 19:37:52,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:52,542 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:52,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 19:37:52,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-07 19:37:52,743 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:52,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:52,743 INFO L85 PathProgramCache]: Analyzing trace with hash 127477776, now seen corresponding path program 12 times [2024-11-07 19:37:52,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:52,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871023660] [2024-11-07 19:37:52,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:52,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:52,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:52,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871023660] [2024-11-07 19:37:52,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871023660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:52,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578604995] [2024-11-07 19:37:52,960 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:37:52,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:52,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:52,963 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:53,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 19:37:53,064 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:37:53,064 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:53,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:37:53,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:53,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:53,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578604995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:53,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:53,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-07 19:37:53,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293859686] [2024-11-07 19:37:53,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:53,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 19:37:53,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:53,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 19:37:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=961, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 19:37:53,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:53,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 673 transitions, 17082 flow. Second operand has 34 states, 34 states have (on average 5.705882352941177) internal successors, (194), 34 states have internal predecessors, (194), 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 19:37:53,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:53,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:53,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:57,447 INFO L124 PetriNetUnfolderBase]: 1989/3533 cut-off events. [2024-11-07 19:37:57,447 INFO L125 PetriNetUnfolderBase]: For 91265/91265 co-relation queries the response was YES. [2024-11-07 19:37:57,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39633 conditions, 3533 events. 1989/3533 cut-off events. For 91265/91265 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 20685 event pairs, 34 based on Foata normal form. 5/3538 useless extension candidates. Maximal degree in co-relation 39538. Up to 939 conditions per place. [2024-11-07 19:37:57,486 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 365 selfloop transitions, 710 changer transitions 30/1106 dead transitions. [2024-11-07 19:37:57,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 1106 transitions, 28062 flow [2024-11-07 19:37:57,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-07 19:37:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2024-11-07 19:37:57,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 724 transitions. [2024-11-07 19:37:57,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3984589983489268 [2024-11-07 19:37:57,492 INFO L175 Difference]: Start difference. First operand has 318 places, 673 transitions, 17082 flow. Second operand 79 states and 724 transitions. [2024-11-07 19:37:57,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 1106 transitions, 28062 flow [2024-11-07 19:37:58,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 1106 transitions, 27050 flow, removed 238 selfloop flow, removed 13 redundant places. [2024-11-07 19:37:58,313 INFO L231 Difference]: Finished difference. Result has 392 places, 928 transitions, 25511 flow [2024-11-07 19:37:58,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=16535, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=485, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=79, PETRI_FLOW=25511, PETRI_PLACES=392, PETRI_TRANSITIONS=928} [2024-11-07 19:37:58,314 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 367 predicate places. [2024-11-07 19:37:58,315 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 928 transitions, 25511 flow [2024-11-07 19:37:58,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.705882352941177) internal successors, (194), 34 states have internal predecessors, (194), 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 19:37:58,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:58,315 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:37:58,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 19:37:58,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:58,520 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:37:58,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash 841867130, now seen corresponding path program 13 times [2024-11-07 19:37:58,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:58,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670620364] [2024-11-07 19:37:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:58,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:58,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:58,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670620364] [2024-11-07 19:37:58,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670620364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:58,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345177952] [2024-11-07 19:37:58,712 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:37:58,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:58,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:58,714 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:37:58,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 19:37:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:58,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:37:58,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:59,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:59,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345177952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:59,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:59,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-07 19:37:59,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451401693] [2024-11-07 19:37:59,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:59,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 19:37:59,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:59,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 19:37:59,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 19:37:59,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:37:59,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 928 transitions, 25511 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:37:59,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:59,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:37:59,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:38:04,854 INFO L124 PetriNetUnfolderBase]: 2266/4048 cut-off events. [2024-11-07 19:38:04,854 INFO L125 PetriNetUnfolderBase]: For 121805/121805 co-relation queries the response was YES. [2024-11-07 19:38:04,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47306 conditions, 4048 events. 2266/4048 cut-off events. For 121805/121805 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24800 event pairs, 36 based on Foata normal form. 6/4054 useless extension candidates. Maximal degree in co-relation 46974. Up to 933 conditions per place. [2024-11-07 19:38:04,897 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 406 selfloop transitions, 854 changer transitions 32/1293 dead transitions. [2024-11-07 19:38:04,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1293 transitions, 34441 flow [2024-11-07 19:38:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-11-07 19:38:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2024-11-07 19:38:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 997 transitions. [2024-11-07 19:38:04,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3836090804155444 [2024-11-07 19:38:04,900 INFO L175 Difference]: Start difference. First operand has 392 places, 928 transitions, 25511 flow. Second operand 113 states and 997 transitions. [2024-11-07 19:38:04,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1293 transitions, 34441 flow [2024-11-07 19:38:06,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1293 transitions, 33417 flow, removed 128 selfloop flow, removed 23 redundant places. [2024-11-07 19:38:06,201 INFO L231 Difference]: Finished difference. Result has 498 places, 1068 transitions, 30995 flow [2024-11-07 19:38:06,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=24656, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=732, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=113, PETRI_FLOW=30995, PETRI_PLACES=498, PETRI_TRANSITIONS=1068} [2024-11-07 19:38:06,202 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 473 predicate places. [2024-11-07 19:38:06,202 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 1068 transitions, 30995 flow [2024-11-07 19:38:06,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:38:06,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:38:06,202 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:38:06,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 19:38:06,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:06,403 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:38:06,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:38:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash -214226062, now seen corresponding path program 14 times [2024-11-07 19:38:06,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:38:06,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448967924] [2024-11-07 19:38:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:38:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:38:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:38:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:06,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:38:06,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448967924] [2024-11-07 19:38:06,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448967924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:38:06,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523197731] [2024-11-07 19:38:06,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:38:06,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:38:06,615 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:38:06,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 19:38:06,652 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:38:06,652 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:38:06,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:38:06,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:38:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:06,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:38:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:07,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523197731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:38:07,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:38:07,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-07 19:38:07,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390619800] [2024-11-07 19:38:07,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:38:07,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 19:38:07,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:38:07,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 19:38:07,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 19:38:07,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:38:07,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 1068 transitions, 30995 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:38:07,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:38:07,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:38:07,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:38:11,376 INFO L124 PetriNetUnfolderBase]: 2768/4932 cut-off events. [2024-11-07 19:38:11,376 INFO L125 PetriNetUnfolderBase]: For 178609/178609 co-relation queries the response was YES. [2024-11-07 19:38:11,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62026 conditions, 4932 events. 2768/4932 cut-off events. For 178609/178609 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 31549 event pairs, 50 based on Foata normal form. 4/4936 useless extension candidates. Maximal degree in co-relation 61629. Up to 1455 conditions per place. [2024-11-07 19:38:11,435 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 479 selfloop transitions, 1020 changer transitions 27/1527 dead transitions. [2024-11-07 19:38:11,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 1527 transitions, 44881 flow [2024-11-07 19:38:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-07 19:38:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2024-11-07 19:38:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 806 transitions. [2024-11-07 19:38:11,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027986006996502 [2024-11-07 19:38:11,436 INFO L175 Difference]: Start difference. First operand has 498 places, 1068 transitions, 30995 flow. Second operand 87 states and 806 transitions. [2024-11-07 19:38:11,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 1527 transitions, 44881 flow [2024-11-07 19:38:13,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 1527 transitions, 43142 flow, removed 486 selfloop flow, removed 55 redundant places. [2024-11-07 19:38:13,620 INFO L231 Difference]: Finished difference. Result has 555 places, 1332 transitions, 41501 flow [2024-11-07 19:38:13,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=29814, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=764, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=87, PETRI_FLOW=41501, PETRI_PLACES=555, PETRI_TRANSITIONS=1332} [2024-11-07 19:38:13,622 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 530 predicate places. [2024-11-07 19:38:13,623 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 1332 transitions, 41501 flow [2024-11-07 19:38:13,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:38:13,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:38:13,623 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:38:13,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 19:38:13,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 19:38:13,824 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:38:13,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:38:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash 564803600, now seen corresponding path program 15 times [2024-11-07 19:38:13,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:38:13,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304142102] [2024-11-07 19:38:13,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:38:13,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:38:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:38:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:38:14,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304142102] [2024-11-07 19:38:14,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304142102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:38:14,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864150122] [2024-11-07 19:38:14,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:38:14,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:14,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:38:14,012 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:38:14,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-07 19:38:14,052 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:38:14,053 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:38:14,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:38:14,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:38:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:14,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:38:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864150122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:38:14,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:38:14,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-07 19:38:14,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689653815] [2024-11-07 19:38:14,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:38:14,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 19:38:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:38:14,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 19:38:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 19:38:14,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:38:14,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 1332 transitions, 41501 flow. Second operand has 34 states, 34 states have (on average 5.705882352941177) internal successors, (194), 34 states have internal predecessors, (194), 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 19:38:14,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:38:14,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:38:14,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:38:19,140 INFO L124 PetriNetUnfolderBase]: 3152/5610 cut-off events. [2024-11-07 19:38:19,141 INFO L125 PetriNetUnfolderBase]: For 240831/240831 co-relation queries the response was YES. [2024-11-07 19:38:19,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74924 conditions, 5610 events. 3152/5610 cut-off events. For 240831/240831 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 36999 event pairs, 69 based on Foata normal form. 4/5614 useless extension candidates. Maximal degree in co-relation 74533. Up to 2469 conditions per place. [2024-11-07 19:38:19,211 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 619 selfloop transitions, 1018 changer transitions 25/1663 dead transitions. [2024-11-07 19:38:19,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 1663 transitions, 52653 flow [2024-11-07 19:38:19,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-07 19:38:19,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2024-11-07 19:38:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 633 transitions. [2024-11-07 19:38:19,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39316770186335404 [2024-11-07 19:38:19,213 INFO L175 Difference]: Start difference. First operand has 555 places, 1332 transitions, 41501 flow. Second operand 70 states and 633 transitions. [2024-11-07 19:38:19,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 1663 transitions, 52653 flow [2024-11-07 19:38:22,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 1663 transitions, 51832 flow, removed 261 selfloop flow, removed 21 redundant places. [2024-11-07 19:38:22,932 INFO L231 Difference]: Finished difference. Result has 633 places, 1516 transitions, 50831 flow [2024-11-07 19:38:22,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40754, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=835, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=50831, PETRI_PLACES=633, PETRI_TRANSITIONS=1516} [2024-11-07 19:38:22,934 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 608 predicate places. [2024-11-07 19:38:22,934 INFO L471 AbstractCegarLoop]: Abstraction has has 633 places, 1516 transitions, 50831 flow [2024-11-07 19:38:22,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.705882352941177) internal successors, (194), 34 states have internal predecessors, (194), 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 19:38:22,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:38:22,935 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:38:22,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-07 19:38:23,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 19:38:23,136 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:38:23,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:38:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash -27474382, now seen corresponding path program 16 times [2024-11-07 19:38:23,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:38:23,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898668833] [2024-11-07 19:38:23,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:38:23,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:38:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:38:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:23,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:38:23,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898668833] [2024-11-07 19:38:23,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898668833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:38:23,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866830990] [2024-11-07 19:38:23,349 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:38:23,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:23,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:38:23,352 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:38:23,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-07 19:38:23,394 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:38:23,394 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:38:23,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:38:23,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:38:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:23,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:38:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:23,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866830990] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:38:23,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:38:23,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-07 19:38:23,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546874173] [2024-11-07 19:38:23,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:38:23,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 19:38:23,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:38:23,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 19:38:23,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=924, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 19:38:23,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:38:23,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 1516 transitions, 50831 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:38:23,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:38:23,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:38:23,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:38:29,373 INFO L124 PetriNetUnfolderBase]: 3743/6715 cut-off events. [2024-11-07 19:38:29,373 INFO L125 PetriNetUnfolderBase]: For 355412/355412 co-relation queries the response was YES. [2024-11-07 19:38:29,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94514 conditions, 6715 events. 3743/6715 cut-off events. For 355412/355412 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 46552 event pairs, 86 based on Foata normal form. 8/6723 useless extension candidates. Maximal degree in co-relation 94022. Up to 2797 conditions per place. [2024-11-07 19:38:29,468 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 617 selfloop transitions, 1353 changer transitions 20/1991 dead transitions. [2024-11-07 19:38:29,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 712 places, 1991 transitions, 66385 flow [2024-11-07 19:38:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-11-07 19:38:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2024-11-07 19:38:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 748 transitions. [2024-11-07 19:38:29,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38716356107660455 [2024-11-07 19:38:29,470 INFO L175 Difference]: Start difference. First operand has 633 places, 1516 transitions, 50831 flow. Second operand 84 states and 748 transitions. [2024-11-07 19:38:29,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 712 places, 1991 transitions, 66385 flow [2024-11-07 19:38:34,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 694 places, 1991 transitions, 66058 flow, removed 84 selfloop flow, removed 18 redundant places. [2024-11-07 19:38:34,921 INFO L231 Difference]: Finished difference. Result has 729 places, 1819 transitions, 65635 flow [2024-11-07 19:38:34,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=50615, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1083, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=84, PETRI_FLOW=65635, PETRI_PLACES=729, PETRI_TRANSITIONS=1819} [2024-11-07 19:38:34,924 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 704 predicate places. [2024-11-07 19:38:34,924 INFO L471 AbstractCegarLoop]: Abstraction has has 729 places, 1819 transitions, 65635 flow [2024-11-07 19:38:34,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:38:34,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:38:34,924 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:38:34,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-07 19:38:35,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 19:38:35,125 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:38:35,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:38:35,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1675408528, now seen corresponding path program 17 times [2024-11-07 19:38:35,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:38:35,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062190159] [2024-11-07 19:38:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:38:35,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:38:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:38:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:35,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:38:35,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062190159] [2024-11-07 19:38:35,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062190159] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:38:35,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867978859] [2024-11-07 19:38:35,314 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:38:35,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:35,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:38:35,316 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:38:35,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-07 19:38:35,365 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-07 19:38:35,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:38:35,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 19:38:35,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:38:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:35,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:38:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:35,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867978859] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:38:35,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:38:35,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 35 [2024-11-07 19:38:35,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181763782] [2024-11-07 19:38:35,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:38:35,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-07 19:38:35,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:38:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-07 19:38:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 19:38:35,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:38:35,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 1819 transitions, 65635 flow. Second operand has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 36 states have internal predecessors, (201), 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 19:38:35,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:38:35,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:38:35,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:38:40,847 INFO L124 PetriNetUnfolderBase]: 3770/6738 cut-off events. [2024-11-07 19:38:40,847 INFO L125 PetriNetUnfolderBase]: For 400632/400632 co-relation queries the response was YES. [2024-11-07 19:38:40,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101931 conditions, 6738 events. 3770/6738 cut-off events. For 400632/400632 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 46518 event pairs, 110 based on Foata normal form. 9/6747 useless extension candidates. Maximal degree in co-relation 101438. Up to 3538 conditions per place. [2024-11-07 19:38:40,970 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 704 selfloop transitions, 1227 changer transitions 19/1951 dead transitions. [2024-11-07 19:38:40,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 1951 transitions, 71390 flow [2024-11-07 19:38:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-07 19:38:40,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2024-11-07 19:38:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 417 transitions. [2024-11-07 19:38:40,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3941398865784499 [2024-11-07 19:38:40,972 INFO L175 Difference]: Start difference. First operand has 729 places, 1819 transitions, 65635 flow. Second operand 46 states and 417 transitions. [2024-11-07 19:38:40,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 1951 transitions, 71390 flow [2024-11-07 19:38:48,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 744 places, 1951 transitions, 69959 flow, removed 574 selfloop flow, removed 25 redundant places. [2024-11-07 19:38:48,415 INFO L231 Difference]: Finished difference. Result has 753 places, 1840 transitions, 68748 flow [2024-11-07 19:38:48,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=64313, PETRI_DIFFERENCE_MINUEND_PLACES=699, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=68748, PETRI_PLACES=753, PETRI_TRANSITIONS=1840} [2024-11-07 19:38:48,417 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 728 predicate places. [2024-11-07 19:38:48,417 INFO L471 AbstractCegarLoop]: Abstraction has has 753 places, 1840 transitions, 68748 flow [2024-11-07 19:38:48,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 36 states have internal predecessors, (201), 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 19:38:48,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:38:48,417 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:38:48,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-07 19:38:48,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:48,618 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:38:48,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:38:48,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1417721104, now seen corresponding path program 18 times [2024-11-07 19:38:48,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:38:48,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739215489] [2024-11-07 19:38:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:38:48,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:38:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:38:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:48,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:38:48,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739215489] [2024-11-07 19:38:48,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739215489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:38:48,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823929986] [2024-11-07 19:38:48,829 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:38:48,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:38:48,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:38:48,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:38:48,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-07 19:38:48,882 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:38:48,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:38:48,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:38:48,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:38:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:49,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:38:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:38:49,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823929986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:38:49,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:38:49,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-07 19:38:49,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949317221] [2024-11-07 19:38:49,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:38:49,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 19:38:49,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:38:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 19:38:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 19:38:49,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:38:49,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 1840 transitions, 68748 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 19:38:49,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:38:49,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:38:49,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand