./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.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-more-nonblocking-counter-alt2.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', '87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd'] 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-more-nonblocking-counter-alt2.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 87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:36:25,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:36:25,811 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:36:25,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:36:25,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:36:25,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:36:25,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:36:25,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:36:25,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:36:25,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:36:25,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:36:25,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:36:25,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:36:25,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:36:25,855 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:36:25,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:36:25,856 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:36:25,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:36:25,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:36:25,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:36:25,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:36:25,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:36:25,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:36:25,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:36:25,858 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 -> 87e1a1d3acb3ee9b7a4a97eb7b14df31d5b38b7566b1218cea0dabfe5ec8ddbd [2024-11-07 19:36:26,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:36:26,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:36:26,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:36:26,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:36:26,187 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:36:26,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-11-07 19:36:27,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:36:27,716 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:36:27,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-11-07 19:36:27,723 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e25480d4/a6f46a7c980342c3818741f84b8e00d9/FLAG9d692637d [2024-11-07 19:36:28,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e25480d4/a6f46a7c980342c3818741f84b8e00d9 [2024-11-07 19:36:28,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:36:28,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:36:28,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:36:28,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:36:28,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:36:28,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b476596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28, skipping insertion in model container [2024-11-07 19:36:28,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:36:28,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:36:28,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:36:28,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:36:28,318 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:36:28,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28 WrapperNode [2024-11-07 19:36:28,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:36:28,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:36:28,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:36:28,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:36:28,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,350 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 46 [2024-11-07 19:36:28,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:36:28,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:36:28,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:36:28,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:36:28,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,375 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 19:36:28,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:36:28,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:36:28,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:36:28,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:36:28,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (1/1) ... [2024-11-07 19:36:28,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:36:28,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:28,431 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 19:36:28,435 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 19:36:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:36:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:36:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:36:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:36:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:36:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:36:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 19:36:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 19:36:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:36:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:36:28,463 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 19:36:28,552 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:36:28,554 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:36:28,800 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:36:28,800 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:36:28,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:36:28,983 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:36:28,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:28 BoogieIcfgContainer [2024-11-07 19:36:28,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:36:28,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:36:28,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:36:28,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:36:28,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:36:28" (1/3) ... [2024-11-07 19:36:28,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617b24f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:36:28, skipping insertion in model container [2024-11-07 19:36:28,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:28" (2/3) ... [2024-11-07 19:36:28,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617b24f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:36:28, skipping insertion in model container [2024-11-07 19:36:28,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:28" (3/3) ... [2024-11-07 19:36:28,997 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-11-07 19:36:29,011 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:36:29,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:36:29,011 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:36:29,074 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:36:29,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 60 flow [2024-11-07 19:36:29,153 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2024-11-07 19:36:29,155 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:36:29,158 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 20 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 19:36:29,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 23 transitions, 60 flow [2024-11-07 19:36:29,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 20 transitions, 52 flow [2024-11-07 19:36:29,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:36:29,189 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;@4b6ec18b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:36:29,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:36:29,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:36:29,207 INFO L124 PetriNetUnfolderBase]: 2/17 cut-off events. [2024-11-07 19:36:29,207 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:36:29,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:29,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:36:29,209 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 19:36:29,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:29,216 INFO L85 PathProgramCache]: Analyzing trace with hash 153611902, now seen corresponding path program 1 times [2024-11-07 19:36:29,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:29,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484286403] [2024-11-07 19:36:29,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:29,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:29,553 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 19:36:29,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:29,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484286403] [2024-11-07 19:36:29,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484286403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:36:29,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:36:29,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:36:29,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017017835] [2024-11-07 19:36:29,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:36:29,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:36:29,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:36:29,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:36:29,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-07 19:36:29,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 19:36:29,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:29,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-07 19:36:29,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:29,715 INFO L124 PetriNetUnfolderBase]: 73/148 cut-off events. [2024-11-07 19:36:29,715 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-07 19:36:29,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 148 events. 73/148 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 436 event pairs, 22 based on Foata normal form. 2/149 useless extension candidates. Maximal degree in co-relation 256. Up to 74 conditions per place. [2024-11-07 19:36:29,722 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 20 selfloop transitions, 2 changer transitions 3/28 dead transitions. [2024-11-07 19:36:29,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 28 transitions, 127 flow [2024-11-07 19:36:29,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:36:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:36:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2024-11-07 19:36:29,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2024-11-07 19:36:29,747 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 52 flow. Second operand 3 states and 45 transitions. [2024-11-07 19:36:29,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 28 transitions, 127 flow [2024-11-07 19:36:29,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 28 transitions, 113 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:36:29,756 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 52 flow [2024-11-07 19:36:29,759 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2024-11-07 19:36:29,764 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -3 predicate places. [2024-11-07 19:36:29,766 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 52 flow [2024-11-07 19:36:29,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 19:36:29,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:29,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:36:29,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:36:29,768 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 19:36:29,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash 178506475, now seen corresponding path program 1 times [2024-11-07 19:36:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:29,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603330259] [2024-11-07 19:36:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:29,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:29,963 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 19:36:29,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603330259] [2024-11-07 19:36:29,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603330259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:36:29,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:36:29,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:36:29,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946516427] [2024-11-07 19:36:29,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:36:29,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:36:29,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:29,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:36:29,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:36:29,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:36:29,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:36:29,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:29,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:36:29,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:30,095 INFO L124 PetriNetUnfolderBase]: 142/260 cut-off events. [2024-11-07 19:36:30,096 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-07 19:36:30,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 260 events. 142/260 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 868 event pairs, 81 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 277. Up to 179 conditions per place. [2024-11-07 19:36:30,101 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 21 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2024-11-07 19:36:30,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 117 flow [2024-11-07 19:36:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:36:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:36:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-11-07 19:36:30,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2024-11-07 19:36:30,104 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 52 flow. Second operand 4 states and 45 transitions. [2024-11-07 19:36:30,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 117 flow [2024-11-07 19:36:30,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:36:30,106 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 64 flow [2024-11-07 19:36:30,107 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 19:36:30,108 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-07 19:36:30,108 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 64 flow [2024-11-07 19:36:30,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:36:30,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:30,109 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 19:36:30,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:36:30,110 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 19:36:30,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash 808698325, now seen corresponding path program 1 times [2024-11-07 19:36:30,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:30,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861498907] [2024-11-07 19:36:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:30,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:30,569 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 19:36:30,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861498907] [2024-11-07 19:36:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861498907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255193640] [2024-11-07 19:36:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:30,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:30,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:30,575 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 19:36:30,577 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 19:36:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:30,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:36:30,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:30,812 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 19:36:30,813 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:31,081 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 19:36:31,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255193640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:31,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:31,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 12 [2024-11-07 19:36:31,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068950244] [2024-11-07 19:36:31,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:31,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:36:31,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:36:31,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:36:31,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:36:31,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 64 flow. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 19:36:31,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:31,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:36:31,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:31,688 INFO L124 PetriNetUnfolderBase]: 402/697 cut-off events. [2024-11-07 19:36:31,689 INFO L125 PetriNetUnfolderBase]: For 187/187 co-relation queries the response was YES. [2024-11-07 19:36:31,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 697 events. 402/697 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2889 event pairs, 5 based on Foata normal form. 2/645 useless extension candidates. Maximal degree in co-relation 598. Up to 184 conditions per place. [2024-11-07 19:36:31,697 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 77 selfloop transitions, 17 changer transitions 10/105 dead transitions. [2024-11-07 19:36:31,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 105 transitions, 522 flow [2024-11-07 19:36:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:36:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:36:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 147 transitions. [2024-11-07 19:36:31,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5810276679841897 [2024-11-07 19:36:31,701 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 64 flow. Second operand 11 states and 147 transitions. [2024-11-07 19:36:31,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 105 transitions, 522 flow [2024-11-07 19:36:31,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 105 transitions, 504 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 19:36:31,707 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 197 flow [2024-11-07 19:36:31,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=197, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2024-11-07 19:36:31,709 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 16 predicate places. [2024-11-07 19:36:31,710 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 197 flow [2024-11-07 19:36:31,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 19:36:31,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:31,711 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 19:36:31,732 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 19:36:31,916 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 19:36:31,917 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 19:36:31,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:31,919 INFO L85 PathProgramCache]: Analyzing trace with hash -647721243, now seen corresponding path program 2 times [2024-11-07 19:36:31,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:31,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267823770] [2024-11-07 19:36:31,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:31,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:36:32,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267823770] [2024-11-07 19:36:32,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267823770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878895836] [2024-11-07 19:36:32,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:36:32,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:32,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:32,146 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 19:36:32,148 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 19:36:32,210 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:36:32,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:32,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:32,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:36:32,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:36:32,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878895836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:36:32,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:36:32,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 19:36:32,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432268920] [2024-11-07 19:36:32,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:36:32,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:36:32,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:36:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:36:32,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:36:32,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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 19:36:32,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:32,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:36:32,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:32,401 INFO L124 PetriNetUnfolderBase]: 396/687 cut-off events. [2024-11-07 19:36:32,402 INFO L125 PetriNetUnfolderBase]: For 803/803 co-relation queries the response was YES. [2024-11-07 19:36:32,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 687 events. 396/687 cut-off events. For 803/803 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2820 event pairs, 122 based on Foata normal form. 6/693 useless extension candidates. Maximal degree in co-relation 1965. Up to 605 conditions per place. [2024-11-07 19:36:32,409 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 43 selfloop transitions, 7 changer transitions 0/51 dead transitions. [2024-11-07 19:36:32,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 51 transitions, 368 flow [2024-11-07 19:36:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:36:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:36:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2024-11-07 19:36:32,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4782608695652174 [2024-11-07 19:36:32,411 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 197 flow. Second operand 5 states and 55 transitions. [2024-11-07 19:36:32,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 51 transitions, 368 flow [2024-11-07 19:36:32,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 340 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-07 19:36:32,421 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 229 flow [2024-11-07 19:36:32,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2024-11-07 19:36:32,422 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-07 19:36:32,422 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 229 flow [2024-11-07 19:36:32,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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 19:36:32,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:32,422 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 19:36:32,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 19:36:32,623 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 19:36:32,623 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 19:36:32,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:32,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1711533315, now seen corresponding path program 3 times [2024-11-07 19:36:32,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:32,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974422942] [2024-11-07 19:36:32,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:32,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:32,766 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 19:36:32,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:32,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974422942] [2024-11-07 19:36:32,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974422942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:32,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339356882] [2024-11-07 19:36:32,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:36:32,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:32,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:32,769 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 19:36:32,771 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 19:36:32,832 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:36:32,832 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:32,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:36:32,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:33,037 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 19:36:33,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:33,484 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 19:36:33,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339356882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:33,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:33,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2024-11-07 19:36:33,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232403240] [2024-11-07 19:36:33,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:33,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:36:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:36:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:36:33,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:36:33,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 229 flow. Second operand has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 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 19:36:33,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:33,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:36:33,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:34,386 INFO L124 PetriNetUnfolderBase]: 711/1204 cut-off events. [2024-11-07 19:36:34,386 INFO L125 PetriNetUnfolderBase]: For 1624/1624 co-relation queries the response was YES. [2024-11-07 19:36:34,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3910 conditions, 1204 events. 711/1204 cut-off events. For 1624/1624 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5453 event pairs, 46 based on Foata normal form. 44/1248 useless extension candidates. Maximal degree in co-relation 3730. Up to 358 conditions per place. [2024-11-07 19:36:34,397 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 97 selfloop transitions, 69 changer transitions 6/173 dead transitions. [2024-11-07 19:36:34,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 173 transitions, 1206 flow [2024-11-07 19:36:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 19:36:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 19:36:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 230 transitions. [2024-11-07 19:36:34,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-07 19:36:34,400 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 229 flow. Second operand 24 states and 230 transitions. [2024-11-07 19:36:34,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 173 transitions, 1206 flow [2024-11-07 19:36:34,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 173 transitions, 1198 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 19:36:34,412 INFO L231 Difference]: Finished difference. Result has 84 places, 106 transitions, 938 flow [2024-11-07 19:36:34,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=938, PETRI_PLACES=84, PETRI_TRANSITIONS=106} [2024-11-07 19:36:34,412 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 59 predicate places. [2024-11-07 19:36:34,412 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 106 transitions, 938 flow [2024-11-07 19:36:34,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 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 19:36:34,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:34,413 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 19:36:34,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 19:36:34,617 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 19:36:34,618 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 19:36:34,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:34,618 INFO L85 PathProgramCache]: Analyzing trace with hash -418985660, now seen corresponding path program 4 times [2024-11-07 19:36:34,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:34,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774557560] [2024-11-07 19:36:34,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:34,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:34,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:34,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774557560] [2024-11-07 19:36:34,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774557560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:34,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638492508] [2024-11-07 19:36:34,821 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:36:34,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:34,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:34,823 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 19:36:34,825 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 19:36:34,879 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:36:34,879 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:34,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:34,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:34,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:35,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:35,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638492508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:35,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:35,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 15 [2024-11-07 19:36:35,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315996634] [2024-11-07 19:36:35,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:35,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:36:35,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:35,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:36:35,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:36:35,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:36:35,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 106 transitions, 938 flow. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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 19:36:35,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:35,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:36:35,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:36,129 INFO L124 PetriNetUnfolderBase]: 1195/2049 cut-off events. [2024-11-07 19:36:36,130 INFO L125 PetriNetUnfolderBase]: For 19118/19145 co-relation queries the response was YES. [2024-11-07 19:36:36,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11139 conditions, 2049 events. 1195/2049 cut-off events. For 19118/19145 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10733 event pairs, 48 based on Foata normal form. 21/2066 useless extension candidates. Maximal degree in co-relation 10851. Up to 491 conditions per place. [2024-11-07 19:36:36,156 INFO L140 encePairwiseOnDemand]: 14/23 looper letters, 132 selfloop transitions, 194 changer transitions 21/372 dead transitions. [2024-11-07 19:36:36,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 372 transitions, 4103 flow [2024-11-07 19:36:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 19:36:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 19:36:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 237 transitions. [2024-11-07 19:36:36,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4683794466403162 [2024-11-07 19:36:36,159 INFO L175 Difference]: Start difference. First operand has 84 places, 106 transitions, 938 flow. Second operand 22 states and 237 transitions. [2024-11-07 19:36:36,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 372 transitions, 4103 flow [2024-11-07 19:36:36,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 372 transitions, 3649 flow, removed 218 selfloop flow, removed 4 redundant places. [2024-11-07 19:36:36,240 INFO L231 Difference]: Finished difference. Result has 117 places, 277 transitions, 3164 flow [2024-11-07 19:36:36,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3164, PETRI_PLACES=117, PETRI_TRANSITIONS=277} [2024-11-07 19:36:36,243 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 92 predicate places. [2024-11-07 19:36:36,243 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 277 transitions, 3164 flow [2024-11-07 19:36:36,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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 19:36:36,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:36,244 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 19:36:36,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 19:36:36,448 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 19:36:36,449 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 19:36:36,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:36,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1202640566, now seen corresponding path program 5 times [2024-11-07 19:36:36,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:36,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475402551] [2024-11-07 19:36:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:36,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:36,672 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 19:36:36,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:36,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475402551] [2024-11-07 19:36:36,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475402551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:36,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573622664] [2024-11-07 19:36:36,673 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:36:36,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:36,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:36,675 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 19:36:36,677 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 19:36:36,726 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:36:36,727 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:36,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:36,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:36,844 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 19:36:36,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:37,019 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 19:36:37,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573622664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:37,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:37,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2024-11-07 19:36:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031597452] [2024-11-07 19:36:37,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:37,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:36:37,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:37,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:36:37,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:36:37,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:36:37,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 277 transitions, 3164 flow. Second operand has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 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 19:36:37,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:37,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:36:37,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:38,327 INFO L124 PetriNetUnfolderBase]: 1758/2934 cut-off events. [2024-11-07 19:36:38,328 INFO L125 PetriNetUnfolderBase]: For 40703/40703 co-relation queries the response was YES. [2024-11-07 19:36:38,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18778 conditions, 2934 events. 1758/2934 cut-off events. For 40703/40703 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 15909 event pairs, 38 based on Foata normal form. 55/2989 useless extension candidates. Maximal degree in co-relation 18431. Up to 734 conditions per place. [2024-11-07 19:36:38,368 INFO L140 encePairwiseOnDemand]: 13/23 looper letters, 220 selfloop transitions, 358 changer transitions 5/584 dead transitions. [2024-11-07 19:36:38,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 584 transitions, 7804 flow [2024-11-07 19:36:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 19:36:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-07 19:36:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 277 transitions. [2024-11-07 19:36:38,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4301242236024845 [2024-11-07 19:36:38,371 INFO L175 Difference]: Start difference. First operand has 117 places, 277 transitions, 3164 flow. Second operand 28 states and 277 transitions. [2024-11-07 19:36:38,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 584 transitions, 7804 flow [2024-11-07 19:36:38,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 584 transitions, 7375 flow, removed 211 selfloop flow, removed 3 redundant places. [2024-11-07 19:36:38,596 INFO L231 Difference]: Finished difference. Result has 160 places, 489 transitions, 6864 flow [2024-11-07 19:36:38,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=2924, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6864, PETRI_PLACES=160, PETRI_TRANSITIONS=489} [2024-11-07 19:36:38,597 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 135 predicate places. [2024-11-07 19:36:38,597 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 489 transitions, 6864 flow [2024-11-07 19:36:38,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 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 19:36:38,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:38,598 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 19:36:38,615 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 19:36:38,800 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 19:36:38,801 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 19:36:38,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:38,801 INFO L85 PathProgramCache]: Analyzing trace with hash -592233352, now seen corresponding path program 6 times [2024-11-07 19:36:38,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:38,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770972848] [2024-11-07 19:36:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:38,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:39,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:39,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770972848] [2024-11-07 19:36:39,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770972848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:39,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339146468] [2024-11-07 19:36:39,043 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:36:39,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:39,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:39,046 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 19:36:39,048 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 19:36:39,102 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-07 19:36:39,103 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:39,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:39,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:39,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:39,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339146468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:39,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:39,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 20 [2024-11-07 19:36:39,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755777893] [2024-11-07 19:36:39,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:39,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 19:36:39,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 19:36:39,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-07 19:36:39,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:36:39,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 489 transitions, 6864 flow. Second operand has 20 states, 20 states have (on average 6.95) internal successors, (139), 20 states have internal predecessors, (139), 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 19:36:39,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:39,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:36:39,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:41,946 INFO L124 PetriNetUnfolderBase]: 2134/3655 cut-off events. [2024-11-07 19:36:41,946 INFO L125 PetriNetUnfolderBase]: For 72399/72430 co-relation queries the response was YES. [2024-11-07 19:36:41,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26858 conditions, 3655 events. 2134/3655 cut-off events. For 72399/72430 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 21149 event pairs, 48 based on Foata normal form. 105/3758 useless extension candidates. Maximal degree in co-relation 25465. Up to 899 conditions per place. [2024-11-07 19:36:41,996 INFO L140 encePairwiseOnDemand]: 14/23 looper letters, 201 selfloop transitions, 629 changer transitions 4/874 dead transitions. [2024-11-07 19:36:41,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 874 transitions, 13826 flow [2024-11-07 19:36:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-07 19:36:41,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-11-07 19:36:41,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 477 transitions. [2024-11-07 19:36:41,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4412580943570768 [2024-11-07 19:36:42,000 INFO L175 Difference]: Start difference. First operand has 160 places, 489 transitions, 6864 flow. Second operand 47 states and 477 transitions. [2024-11-07 19:36:42,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 874 transitions, 13826 flow [2024-11-07 19:36:42,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 874 transitions, 13271 flow, removed 269 selfloop flow, removed 5 redundant places. [2024-11-07 19:36:42,332 INFO L231 Difference]: Finished difference. Result has 223 places, 736 transitions, 12262 flow [2024-11-07 19:36:42,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=6434, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=371, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=12262, PETRI_PLACES=223, PETRI_TRANSITIONS=736} [2024-11-07 19:36:42,333 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 198 predicate places. [2024-11-07 19:36:42,333 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 736 transitions, 12262 flow [2024-11-07 19:36:42,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.95) internal successors, (139), 20 states have internal predecessors, (139), 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 19:36:42,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:42,333 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 19:36:42,349 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 19:36:42,534 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 19:36:42,534 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 19:36:42,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash -94523098, now seen corresponding path program 7 times [2024-11-07 19:36:42,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:42,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225608791] [2024-11-07 19:36:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:42,736 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 19:36:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225608791] [2024-11-07 19:36:42,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225608791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491095371] [2024-11-07 19:36:42,737 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:36:42,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:42,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:42,740 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 19:36:42,742 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 19:36:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:42,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:42,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:42,929 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 19:36:42,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:43,103 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 19:36:43,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491095371] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:43,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:43,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2024-11-07 19:36:43,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973075166] [2024-11-07 19:36:43,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:43,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:36:43,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:43,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:36:43,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:36:43,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:36:43,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 736 transitions, 12262 flow. Second operand has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 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 19:36:43,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:43,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:36:43,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:45,290 INFO L124 PetriNetUnfolderBase]: 2825/4726 cut-off events. [2024-11-07 19:36:45,291 INFO L125 PetriNetUnfolderBase]: For 106094/106094 co-relation queries the response was YES. [2024-11-07 19:36:45,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38297 conditions, 4726 events. 2825/4726 cut-off events. For 106094/106094 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 27754 event pairs, 44 based on Foata normal form. 18/4744 useless extension candidates. Maximal degree in co-relation 36867. Up to 1223 conditions per place. [2024-11-07 19:36:45,393 INFO L140 encePairwiseOnDemand]: 13/23 looper letters, 288 selfloop transitions, 837 changer transitions 2/1128 dead transitions. [2024-11-07 19:36:45,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 1128 transitions, 20560 flow [2024-11-07 19:36:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-07 19:36:45,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2024-11-07 19:36:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 360 transitions. [2024-11-07 19:36:45,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41189931350114417 [2024-11-07 19:36:45,395 INFO L175 Difference]: Start difference. First operand has 223 places, 736 transitions, 12262 flow. Second operand 38 states and 360 transitions. [2024-11-07 19:36:45,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 1128 transitions, 20560 flow [2024-11-07 19:36:46,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 1128 transitions, 19843 flow, removed 342 selfloop flow, removed 5 redundant places. [2024-11-07 19:36:46,378 INFO L231 Difference]: Finished difference. Result has 271 places, 995 transitions, 19117 flow [2024-11-07 19:36:46,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=11707, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=584, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=19117, PETRI_PLACES=271, PETRI_TRANSITIONS=995} [2024-11-07 19:36:46,384 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 246 predicate places. [2024-11-07 19:36:46,384 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 995 transitions, 19117 flow [2024-11-07 19:36:46,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 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 19:36:46,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:46,385 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 19:36:46,402 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 19:36:46,589 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 19:36:46,590 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 19:36:46,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:46,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1441668228, now seen corresponding path program 8 times [2024-11-07 19:36:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216035903] [2024-11-07 19:36:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:46,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:46,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216035903] [2024-11-07 19:36:46,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216035903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:46,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895587251] [2024-11-07 19:36:46,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:36:46,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:46,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:46,790 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 19:36:46,792 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 19:36:46,842 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:36:46,843 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:46,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:46,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:46,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:36:47,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895587251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:47,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:47,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 16 [2024-11-07 19:36:47,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478688104] [2024-11-07 19:36:47,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:47,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:36:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:47,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:36:47,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:36:47,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:36:47,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 995 transitions, 19117 flow. Second operand has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 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 19:36:47,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:47,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:36:47,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:48,706 INFO L124 PetriNetUnfolderBase]: 3004/5124 cut-off events. [2024-11-07 19:36:48,706 INFO L125 PetriNetUnfolderBase]: For 153578/153597 co-relation queries the response was YES. [2024-11-07 19:36:48,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47284 conditions, 5124 events. 3004/5124 cut-off events. For 153578/153597 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 31824 event pairs, 269 based on Foata normal form. 15/5133 useless extension candidates. Maximal degree in co-relation 46132. Up to 1792 conditions per place. [2024-11-07 19:36:48,767 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 402 selfloop transitions, 752 changer transitions 6/1217 dead transitions. [2024-11-07 19:36:48,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 1217 transitions, 25950 flow [2024-11-07 19:36:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:36:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:36:48,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 167 transitions. [2024-11-07 19:36:48,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.453804347826087 [2024-11-07 19:36:48,769 INFO L175 Difference]: Start difference. First operand has 271 places, 995 transitions, 19117 flow. Second operand 16 states and 167 transitions. [2024-11-07 19:36:48,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 1217 transitions, 25950 flow [2024-11-07 19:36:50,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1217 transitions, 25724 flow, removed 93 selfloop flow, removed 6 redundant places. [2024-11-07 19:36:50,076 INFO L231 Difference]: Finished difference. Result has 291 places, 1152 transitions, 25482 flow [2024-11-07 19:36:50,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=18929, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=995, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=599, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25482, PETRI_PLACES=291, PETRI_TRANSITIONS=1152} [2024-11-07 19:36:50,078 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 266 predicate places. [2024-11-07 19:36:50,078 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 1152 transitions, 25482 flow [2024-11-07 19:36:50,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 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 19:36:50,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:50,079 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 19:36:50,091 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 19:36:50,279 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 19:36:50,279 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 19:36:50,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:50,280 INFO L85 PathProgramCache]: Analyzing trace with hash -282926934, now seen corresponding path program 9 times [2024-11-07 19:36:50,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:50,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778439766] [2024-11-07 19:36:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:50,537 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 19:36:50,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778439766] [2024-11-07 19:36:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778439766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187982362] [2024-11-07 19:36:50,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:36:50,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:50,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:50,540 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 19:36:50,542 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 19:36:50,590 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:36:50,590 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:50,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:50,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:36:50,676 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 19:36:50,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:36:50,829 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 19:36:50,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187982362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:36:50,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:36:50,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2024-11-07 19:36:50,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820161336] [2024-11-07 19:36:50,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:36:50,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:36:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:36:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:36:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:36:50,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-07 19:36:50,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 1152 transitions, 25482 flow. Second operand has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 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 19:36:50,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:36:50,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-07 19:36:50,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:36:54,854 INFO L124 PetriNetUnfolderBase]: 5430/8981 cut-off events. [2024-11-07 19:36:54,855 INFO L125 PetriNetUnfolderBase]: For 329368/329368 co-relation queries the response was YES. [2024-11-07 19:36:54,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90813 conditions, 8981 events. 5430/8981 cut-off events. For 329368/329368 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 57666 event pairs, 84 based on Foata normal form. 94/9075 useless extension candidates. Maximal degree in co-relation 89287. Up to 2397 conditions per place. [2024-11-07 19:36:54,983 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 604 selfloop transitions, 1688 changer transitions 19/2312 dead transitions. [2024-11-07 19:36:54,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 2312 transitions, 55505 flow [2024-11-07 19:36:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-07 19:36:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-11-07 19:36:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 450 transitions. [2024-11-07 19:36:54,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4162812210915819 [2024-11-07 19:36:54,986 INFO L175 Difference]: Start difference. First operand has 291 places, 1152 transitions, 25482 flow. Second operand 47 states and 450 transitions. [2024-11-07 19:36:54,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 2312 transitions, 55505 flow [2024-11-07 19:36:59,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 2312 transitions, 54995 flow, removed 233 selfloop flow, removed 2 redundant places. [2024-11-07 19:36:59,460 INFO L231 Difference]: Finished difference. Result has 356 places, 2085 transitions, 53648 flow [2024-11-07 19:36:59,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=25185, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=856, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=53648, PETRI_PLACES=356, PETRI_TRANSITIONS=2085} [2024-11-07 19:36:59,462 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 331 predicate places. [2024-11-07 19:36:59,462 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 2085 transitions, 53648 flow [2024-11-07 19:36:59,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 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 19:36:59,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:36:59,462 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 19:36:59,475 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 19:36:59,663 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 19:36:59,663 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 19:36:59,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:36:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1105483722, now seen corresponding path program 10 times [2024-11-07 19:36:59,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:36:59,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648694934] [2024-11-07 19:36:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:36:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:36:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:36:59,860 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 19:36:59,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:36:59,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648694934] [2024-11-07 19:36:59,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648694934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:36:59,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584736035] [2024-11-07 19:36:59,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:36:59,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:36:59,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:36:59,864 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 19:36:59,866 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 19:36:59,912 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:36:59,912 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:36:59,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:36:59,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:00,022 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 19:37:00,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:00,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584736035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:00,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:00,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 18 [2024-11-07 19:37:00,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767452567] [2024-11-07 19:37:00,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:00,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:37:00,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:00,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:37:00,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:37:00,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:37:00,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 2085 transitions, 53648 flow. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 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 19:37:00,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:00,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:37:00,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:04,498 INFO L124 PetriNetUnfolderBase]: 5586/9492 cut-off events. [2024-11-07 19:37:04,498 INFO L125 PetriNetUnfolderBase]: For 401263/401272 co-relation queries the response was YES. [2024-11-07 19:37:04,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108018 conditions, 9492 events. 5586/9492 cut-off events. For 401263/401272 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 64646 event pairs, 238 based on Foata normal form. 58/9550 useless extension candidates. Maximal degree in co-relation 106084. Up to 2581 conditions per place. [2024-11-07 19:37:04,658 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 497 selfloop transitions, 1819 changer transitions 7/2425 dead transitions. [2024-11-07 19:37:04,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 2425 transitions, 66484 flow [2024-11-07 19:37:04,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 19:37:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 19:37:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 253 transitions. [2024-11-07 19:37:04,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4782608695652174 [2024-11-07 19:37:04,660 INFO L175 Difference]: Start difference. First operand has 356 places, 2085 transitions, 53648 flow. Second operand 23 states and 253 transitions. [2024-11-07 19:37:04,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 2425 transitions, 66484 flow [2024-11-07 19:37:12,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 2425 transitions, 64541 flow, removed 902 selfloop flow, removed 9 redundant places. [2024-11-07 19:37:12,099 INFO L231 Difference]: Finished difference. Result has 384 places, 2329 transitions, 65827 flow [2024-11-07 19:37:12,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=52074, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2085, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1593, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=65827, PETRI_PLACES=384, PETRI_TRANSITIONS=2329} [2024-11-07 19:37:12,103 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 359 predicate places. [2024-11-07 19:37:12,105 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 2329 transitions, 65827 flow [2024-11-07 19:37:12,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 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 19:37:12,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:12,106 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 19:37:12,123 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 19:37:12,306 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 19:37:12,307 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 19:37:12,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:12,307 INFO L85 PathProgramCache]: Analyzing trace with hash 903812650, now seen corresponding path program 11 times [2024-11-07 19:37:12,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:12,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436552417] [2024-11-07 19:37:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:12,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:12,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436552417] [2024-11-07 19:37:12,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436552417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:12,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756062701] [2024-11-07 19:37:12,430 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:37:12,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:12,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:12,433 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 19:37:12,434 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 19:37:12,485 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:37:12,485 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:12,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:37:12,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:12,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:12,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756062701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:12,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:12,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 17 [2024-11-07 19:37:12,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439280448] [2024-11-07 19:37:12,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:12,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:37:12,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:12,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:37:12,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:37:12,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:37:12,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 2329 transitions, 65827 flow. Second operand has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 17 states have internal predecessors, (117), 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 19:37:12,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:12,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:37:12,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:18,011 INFO L124 PetriNetUnfolderBase]: 5945/10102 cut-off events. [2024-11-07 19:37:18,011 INFO L125 PetriNetUnfolderBase]: For 364280/364315 co-relation queries the response was YES. [2024-11-07 19:37:18,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121957 conditions, 10102 events. 5945/10102 cut-off events. For 364280/364315 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 69523 event pairs, 194 based on Foata normal form. 35/10135 useless extension candidates. Maximal degree in co-relation 120058. Up to 2737 conditions per place. [2024-11-07 19:37:18,141 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 248 selfloop transitions, 2260 changer transitions 4/2614 dead transitions. [2024-11-07 19:37:18,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 2614 transitions, 77838 flow [2024-11-07 19:37:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-07 19:37:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-07 19:37:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 333 transitions. [2024-11-07 19:37:18,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41366459627329194 [2024-11-07 19:37:18,144 INFO L175 Difference]: Start difference. First operand has 384 places, 2329 transitions, 65827 flow. Second operand 35 states and 333 transitions. [2024-11-07 19:37:18,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 2614 transitions, 77838 flow [2024-11-07 19:37:27,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 2614 transitions, 77316 flow, removed 205 selfloop flow, removed 6 redundant places. [2024-11-07 19:37:27,283 INFO L231 Difference]: Finished difference. Result has 417 places, 2551 transitions, 78822 flow [2024-11-07 19:37:27,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=65300, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2044, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=78822, PETRI_PLACES=417, PETRI_TRANSITIONS=2551} [2024-11-07 19:37:27,286 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 392 predicate places. [2024-11-07 19:37:27,286 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 2551 transitions, 78822 flow [2024-11-07 19:37:27,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 17 states have internal predecessors, (117), 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 19:37:27,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:27,287 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 19:37:27,303 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 19:37:27,487 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 19:37:27,488 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 19:37:27,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:27,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1887676888, now seen corresponding path program 12 times [2024-11-07 19:37:27,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:27,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666997027] [2024-11-07 19:37:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:27,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:27,679 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 19:37:27,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:27,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666997027] [2024-11-07 19:37:27,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666997027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:27,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255435374] [2024-11-07 19:37:27,679 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:37:27,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:27,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:27,682 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 19:37:27,683 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 19:37:27,726 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:37:27,726 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:37:27,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:37:27,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:27,846 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 19:37:27,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:28,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:28,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255435374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:28,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:28,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-11-07 19:37:28,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164363722] [2024-11-07 19:37:28,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:28,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:37:28,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:28,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:37:28,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:37:28,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:37:28,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 2551 transitions, 78822 flow. Second operand has 19 states, 19 states have (on average 7.052631578947368) internal successors, (134), 19 states have internal predecessors, (134), 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 19:37:28,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:28,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:37:28,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:34,594 INFO L124 PetriNetUnfolderBase]: 6729/11458 cut-off events. [2024-11-07 19:37:34,594 INFO L125 PetriNetUnfolderBase]: For 494088/494136 co-relation queries the response was YES. [2024-11-07 19:37:34,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149994 conditions, 11458 events. 6729/11458 cut-off events. For 494088/494136 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 80588 event pairs, 651 based on Foata normal form. 80/11528 useless extension candidates. Maximal degree in co-relation 149392. Up to 4244 conditions per place. [2024-11-07 19:37:34,769 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 1339 selfloop transitions, 1520 changer transitions 0/2961 dead transitions. [2024-11-07 19:37:34,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 2961 transitions, 96406 flow [2024-11-07 19:37:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 19:37:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-07 19:37:34,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 289 transitions. [2024-11-07 19:37:34,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44875776397515527 [2024-11-07 19:37:34,771 INFO L175 Difference]: Start difference. First operand has 417 places, 2551 transitions, 78822 flow. Second operand 28 states and 289 transitions. [2024-11-07 19:37:34,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 2961 transitions, 96406 flow [2024-11-07 19:37:47,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 2961 transitions, 93860 flow, removed 592 selfloop flow, removed 19 redundant places. [2024-11-07 19:37:47,719 INFO L231 Difference]: Finished difference. Result has 445 places, 2824 transitions, 91519 flow [2024-11-07 19:37:47,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=76830, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=91519, PETRI_PLACES=445, PETRI_TRANSITIONS=2824} [2024-11-07 19:37:47,721 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 420 predicate places. [2024-11-07 19:37:47,722 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 2824 transitions, 91519 flow [2024-11-07 19:37:47,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.052631578947368) internal successors, (134), 19 states have internal predecessors, (134), 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 19:37:47,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:37:47,722 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 19:37:47,736 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 19:37:47,922 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 19:37:47,922 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 19:37:47,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:37:47,923 INFO L85 PathProgramCache]: Analyzing trace with hash 408245248, now seen corresponding path program 13 times [2024-11-07 19:37:47,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:37:47,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099914361] [2024-11-07 19:37:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:37:47,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:37:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:48,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:37:48,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099914361] [2024-11-07 19:37:48,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099914361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:37:48,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455256608] [2024-11-07 19:37:48,064 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:37:48,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:37:48,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:37:48,067 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 19:37:48,069 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 19:37:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:37:48,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:37:48,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:37:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:48,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:37:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:37:48,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455256608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:37:48,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:37:48,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2024-11-07 19:37:48,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481530101] [2024-11-07 19:37:48,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:37:48,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:37:48,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:37:48,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:37:48,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:37:48,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-07 19:37:48,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 2824 transitions, 91519 flow. Second operand has 18 states, 18 states have (on average 7.055555555555555) internal successors, (127), 18 states have internal predecessors, (127), 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 19:37:48,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:37:48,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-07 19:37:48,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:37:56,664 INFO L124 PetriNetUnfolderBase]: 6856/11677 cut-off events. [2024-11-07 19:37:56,664 INFO L125 PetriNetUnfolderBase]: For 502068/502162 co-relation queries the response was YES. [2024-11-07 19:37:56,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157660 conditions, 11677 events. 6856/11677 cut-off events. For 502068/502162 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 82378 event pairs, 763 based on Foata normal form. 44/11711 useless extension candidates. Maximal degree in co-relation 157153. Up to 5038 conditions per place. [2024-11-07 19:37:56,857 INFO L140 encePairwiseOnDemand]: 14/23 looper letters, 837 selfloop transitions, 2027 changer transitions 2/2968 dead transitions. [2024-11-07 19:37:56,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 2968 transitions, 101209 flow [2024-11-07 19:37:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 19:37:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 19:37:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 209 transitions. [2024-11-07 19:37:56,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.432712215320911 [2024-11-07 19:37:56,859 INFO L175 Difference]: Start difference. First operand has 445 places, 2824 transitions, 91519 flow. Second operand 21 states and 209 transitions. [2024-11-07 19:37:56,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 2968 transitions, 101209 flow