./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy1.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/test-easy1.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', '935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d'] 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/test-easy1.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 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:39:18,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:39:18,113 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:39:18,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:39:18,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:39:18,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:39:18,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:39:18,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:39:18,155 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:39:18,156 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:39:18,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:39:18,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:39:18,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:39:18,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:39:18,157 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:39:18,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:39:18,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:39:18,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:39:18,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:39:18,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:39:18,158 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:39:18,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:39:18,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:39:18,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:39:18,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:39:18,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:39:18,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:39:18,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:39:18,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:39:18,161 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 -> 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d [2024-11-07 19:39:18,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:39:18,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:39:18,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:39:18,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:39:18,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:39:18,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy1.wvr.c [2024-11-07 19:39:19,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:39:19,927 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:39:19,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-easy1.wvr.c [2024-11-07 19:39:19,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/287d5bde0/b059dfa3241e44be81497c7578b60096/FLAG335a65a40 [2024-11-07 19:39:20,307 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/287d5bde0/b059dfa3241e44be81497c7578b60096 [2024-11-07 19:39:20,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:39:20,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:39:20,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:39:20,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:39:20,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:39:20,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f784c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20, skipping insertion in model container [2024-11-07 19:39:20,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:39:20,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:39:20,478 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:39:20,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:39:20,507 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:39:20,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20 WrapperNode [2024-11-07 19:39:20,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:39:20,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:39:20,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:39:20,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:39:20,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,534 INFO L138 Inliner]: procedures = 20, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2024-11-07 19:39:20,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:39:20,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:39:20,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:39:20,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:39:20,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,561 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 19:39:20,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:39:20,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:39:20,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:39:20,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:39:20,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (1/1) ... [2024-11-07 19:39:20,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:39:20,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:20,615 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 19:39:20,618 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 19:39:20,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:39:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:39:20,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:39:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:39:20,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:39:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:39:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:39:20,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:39:20,645 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 19:39:20,725 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:39:20,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:39:20,846 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:39:20,847 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:39:20,953 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:39:20,954 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:39:20,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:20 BoogieIcfgContainer [2024-11-07 19:39:20,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:39:20,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:39:20,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:39:20,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:39:20,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:39:20" (1/3) ... [2024-11-07 19:39:20,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e30df48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:39:20, skipping insertion in model container [2024-11-07 19:39:20,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:20" (2/3) ... [2024-11-07 19:39:20,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e30df48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:39:20, skipping insertion in model container [2024-11-07 19:39:20,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:20" (3/3) ... [2024-11-07 19:39:20,963 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy1.wvr.c [2024-11-07 19:39:20,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:39:20,978 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:39:20,979 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:39:21,015 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:39:21,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 54 flow [2024-11-07 19:39:21,067 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-07 19:39:21,069 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:39:21,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 2/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2024-11-07 19:39:21,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 20 transitions, 54 flow [2024-11-07 19:39:21,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 17 transitions, 46 flow [2024-11-07 19:39:21,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:39:21,091 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;@7c1353b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:39:21,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:39:21,100 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:39:21,100 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-11-07 19:39:21,100 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:39:21,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:21,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:21,102 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 19:39:21,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:21,106 INFO L85 PathProgramCache]: Analyzing trace with hash 206962796, now seen corresponding path program 1 times [2024-11-07 19:39:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:21,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152069819] [2024-11-07 19:39:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:21,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:21,366 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 19:39:21,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:21,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152069819] [2024-11-07 19:39:21,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152069819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:21,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:21,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:39:21,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150360932] [2024-11-07 19:39:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:21,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:39:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:21,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:39:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:39:21,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:21,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 19:39:21,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:21,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:21,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:21,477 INFO L124 PetriNetUnfolderBase]: 59/104 cut-off events. [2024-11-07 19:39:21,479 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 19:39:21,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 104 events. 59/104 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 289 event pairs, 8 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 179. Up to 77 conditions per place. [2024-11-07 19:39:21,481 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 17 selfloop transitions, 3 changer transitions 1/24 dead transitions. [2024-11-07 19:39:21,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 24 transitions, 111 flow [2024-11-07 19:39:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:39:21,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:39:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2024-11-07 19:39:21,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-11-07 19:39:21,498 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 46 flow. Second operand 3 states and 41 transitions. [2024-11-07 19:39:21,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 24 transitions, 111 flow [2024-11-07 19:39:21,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 24 transitions, 97 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:21,506 INFO L231 Difference]: Finished difference. Result has 19 places, 17 transitions, 53 flow [2024-11-07 19:39:21,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=19, PETRI_TRANSITIONS=17} [2024-11-07 19:39:21,512 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2024-11-07 19:39:21,512 INFO L471 AbstractCegarLoop]: Abstraction has has 19 places, 17 transitions, 53 flow [2024-11-07 19:39:21,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 19:39:21,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:21,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:21,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:39:21,515 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 19:39:21,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1915398664, now seen corresponding path program 1 times [2024-11-07 19:39:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128652999] [2024-11-07 19:39:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:21,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:21,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128652999] [2024-11-07 19:39:21,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128652999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:21,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:21,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:39:21,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105280834] [2024-11-07 19:39:21,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:21,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:39:21,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:21,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:39:21,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:39:21,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:21,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 17 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:21,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:21,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:21,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:21,771 INFO L124 PetriNetUnfolderBase]: 62/118 cut-off events. [2024-11-07 19:39:21,773 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-07 19:39:21,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 118 events. 62/118 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 341 event pairs, 6 based on Foata normal form. 4/118 useless extension candidates. Maximal degree in co-relation 112. Up to 56 conditions per place. [2024-11-07 19:39:21,775 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 25 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2024-11-07 19:39:21,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 35 transitions, 169 flow [2024-11-07 19:39:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:39:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:39:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2024-11-07 19:39:21,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-07 19:39:21,778 INFO L175 Difference]: Start difference. First operand has 19 places, 17 transitions, 53 flow. Second operand 5 states and 60 transitions. [2024-11-07 19:39:21,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 35 transitions, 169 flow [2024-11-07 19:39:21,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 35 transitions, 165 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:21,780 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 106 flow [2024-11-07 19:39:21,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2024-11-07 19:39:21,781 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2024-11-07 19:39:21,781 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 106 flow [2024-11-07 19:39:21,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:21,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:21,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:21,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:39:21,783 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 19:39:21,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1112765758, now seen corresponding path program 2 times [2024-11-07 19:39:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835704575] [2024-11-07 19:39:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:21,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:21,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835704575] [2024-11-07 19:39:21,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835704575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:21,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96157111] [2024-11-07 19:39:21,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:21,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:21,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:21,872 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 19:39:21,873 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 19:39:21,942 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:21,942 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:21,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:39:21,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:22,039 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:22,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96157111] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:22,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 19:39:22,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 6 [2024-11-07 19:39:22,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486540390] [2024-11-07 19:39:22,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:22,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:39:22,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:22,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:39:22,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:22,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:22,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:22,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:22,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:22,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:22,209 INFO L124 PetriNetUnfolderBase]: 56/110 cut-off events. [2024-11-07 19:39:22,210 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-11-07 19:39:22,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 110 events. 56/110 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 313 event pairs, 8 based on Foata normal form. 5/111 useless extension candidates. Maximal degree in co-relation 244. Up to 46 conditions per place. [2024-11-07 19:39:22,212 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 22 selfloop transitions, 8 changer transitions 2/35 dead transitions. [2024-11-07 19:39:22,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 216 flow [2024-11-07 19:39:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:39:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:39:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2024-11-07 19:39:22,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-07 19:39:22,214 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 106 flow. Second operand 4 states and 52 transitions. [2024-11-07 19:39:22,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 216 flow [2024-11-07 19:39:22,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:39:22,216 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 127 flow [2024-11-07 19:39:22,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2024-11-07 19:39:22,217 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 7 predicate places. [2024-11-07 19:39:22,217 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 127 flow [2024-11-07 19:39:22,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:22,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:22,219 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:22,236 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 19:39:22,419 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 19:39:22,420 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 19:39:22,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2119804075, now seen corresponding path program 1 times [2024-11-07 19:39:22,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493034107] [2024-11-07 19:39:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:22,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:22,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493034107] [2024-11-07 19:39:22,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493034107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:22,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:22,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:39:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524602018] [2024-11-07 19:39:22,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:22,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:39:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:39:22,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:39:22,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:22,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:22,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:22,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:22,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:22,594 INFO L124 PetriNetUnfolderBase]: 54/116 cut-off events. [2024-11-07 19:39:22,595 INFO L125 PetriNetUnfolderBase]: For 244/244 co-relation queries the response was YES. [2024-11-07 19:39:22,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 116 events. 54/116 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 330 event pairs, 4 based on Foata normal form. 6/121 useless extension candidates. Maximal degree in co-relation 220. Up to 44 conditions per place. [2024-11-07 19:39:22,596 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 29 selfloop transitions, 7 changer transitions 3/42 dead transitions. [2024-11-07 19:39:22,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 293 flow [2024-11-07 19:39:22,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:39:22,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:39:22,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2024-11-07 19:39:22,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63 [2024-11-07 19:39:22,599 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 127 flow. Second operand 5 states and 63 transitions. [2024-11-07 19:39:22,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 293 flow [2024-11-07 19:39:22,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 261 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-07 19:39:22,604 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 161 flow [2024-11-07 19:39:22,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2024-11-07 19:39:22,605 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 11 predicate places. [2024-11-07 19:39:22,606 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 161 flow [2024-11-07 19:39:22,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:22,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:22,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:22,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:39:22,606 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 19:39:22,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash -76544487, now seen corresponding path program 2 times [2024-11-07 19:39:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:22,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142848302] [2024-11-07 19:39:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:22,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:22,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142848302] [2024-11-07 19:39:22,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142848302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:22,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:22,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:39:22,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116014045] [2024-11-07 19:39:22,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:22,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:39:22,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:22,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:39:22,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:39:22,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:22,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:22,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:22,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:22,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:22,739 INFO L124 PetriNetUnfolderBase]: 43/93 cut-off events. [2024-11-07 19:39:22,739 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-07 19:39:22,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 93 events. 43/93 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 213 event pairs, 5 based on Foata normal form. 4/96 useless extension candidates. Maximal degree in co-relation 286. Up to 76 conditions per place. [2024-11-07 19:39:22,742 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 22 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-11-07 19:39:22,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 225 flow [2024-11-07 19:39:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:39:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:39:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2024-11-07 19:39:22,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-07 19:39:22,744 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 161 flow. Second operand 4 states and 46 transitions. [2024-11-07 19:39:22,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 225 flow [2024-11-07 19:39:22,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 219 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:22,747 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 163 flow [2024-11-07 19:39:22,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2024-11-07 19:39:22,750 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 14 predicate places. [2024-11-07 19:39:22,750 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 163 flow [2024-11-07 19:39:22,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 19:39:22,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:22,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:22,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:39:22,751 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 19:39:22,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:22,751 INFO L85 PathProgramCache]: Analyzing trace with hash 819771023, now seen corresponding path program 1 times [2024-11-07 19:39:22,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:22,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310337399] [2024-11-07 19:39:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:22,907 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 19:39:22,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310337399] [2024-11-07 19:39:22,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310337399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953526733] [2024-11-07 19:39:22,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:22,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:22,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:22,910 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 19:39:22,912 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 19:39:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:22,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:22,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:23,134 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 19:39:23,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:23,290 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 19:39:23,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953526733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:23,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:23,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-07 19:39:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634476804] [2024-11-07 19:39:23,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:23,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:39:23,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:39:23,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:39:23,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:23,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 163 flow. Second operand has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 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 19:39:23,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:23,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:23,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:23,458 INFO L124 PetriNetUnfolderBase]: 98/193 cut-off events. [2024-11-07 19:39:23,458 INFO L125 PetriNetUnfolderBase]: For 479/479 co-relation queries the response was YES. [2024-11-07 19:39:23,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 193 events. 98/193 cut-off events. For 479/479 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 639 event pairs, 0 based on Foata normal form. 17/209 useless extension candidates. Maximal degree in co-relation 448. Up to 76 conditions per place. [2024-11-07 19:39:23,462 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 38 selfloop transitions, 19 changer transitions 8/68 dead transitions. [2024-11-07 19:39:23,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 68 transitions, 549 flow [2024-11-07 19:39:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 111 transitions. [2024-11-07 19:39:23,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-11-07 19:39:23,463 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 163 flow. Second operand 9 states and 111 transitions. [2024-11-07 19:39:23,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 68 transitions, 549 flow [2024-11-07 19:39:23,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 530 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-07 19:39:23,471 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 364 flow [2024-11-07 19:39:23,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=364, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2024-11-07 19:39:23,472 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 26 predicate places. [2024-11-07 19:39:23,472 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 364 flow [2024-11-07 19:39:23,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 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 19:39:23,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:23,472 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:23,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:23,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:23,677 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 19:39:23,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:23,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1922603833, now seen corresponding path program 2 times [2024-11-07 19:39:23,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:23,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274609491] [2024-11-07 19:39:23,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:23,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:23,797 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 19:39:23,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:23,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274609491] [2024-11-07 19:39:23,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274609491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:23,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171403186] [2024-11-07 19:39:23,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:23,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:23,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:23,800 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 19:39:23,802 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 19:39:23,848 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:23,848 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:23,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:39:23,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:23,915 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 19:39:23,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:23,935 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 19:39:23,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171403186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:23,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:23,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 7 [2024-11-07 19:39:23,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148892252] [2024-11-07 19:39:23,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:23,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 19:39:23,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:23,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 19:39:23,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-07 19:39:23,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:23,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 364 flow. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 19:39:23,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:23,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:23,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:24,035 INFO L124 PetriNetUnfolderBase]: 128/257 cut-off events. [2024-11-07 19:39:24,035 INFO L125 PetriNetUnfolderBase]: For 1182/1182 co-relation queries the response was YES. [2024-11-07 19:39:24,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 257 events. 128/257 cut-off events. For 1182/1182 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 975 event pairs, 10 based on Foata normal form. 6/262 useless extension candidates. Maximal degree in co-relation 1303. Up to 157 conditions per place. [2024-11-07 19:39:24,038 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 50 selfloop transitions, 17 changer transitions 1/71 dead transitions. [2024-11-07 19:39:24,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 71 transitions, 741 flow [2024-11-07 19:39:24,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:24,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 77 transitions. [2024-11-07 19:39:24,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-11-07 19:39:24,039 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 364 flow. Second operand 6 states and 77 transitions. [2024-11-07 19:39:24,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 71 transitions, 741 flow [2024-11-07 19:39:24,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 71 transitions, 664 flow, removed 37 selfloop flow, removed 2 redundant places. [2024-11-07 19:39:24,045 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 484 flow [2024-11-07 19:39:24,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=484, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2024-11-07 19:39:24,046 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 31 predicate places. [2024-11-07 19:39:24,046 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 484 flow [2024-11-07 19:39:24,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 19:39:24,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:24,047 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:24,063 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 19:39:24,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:24,247 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 19:39:24,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:24,248 INFO L85 PathProgramCache]: Analyzing trace with hash -357977368, now seen corresponding path program 3 times [2024-11-07 19:39:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:24,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871602768] [2024-11-07 19:39:24,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:24,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:24,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871602768] [2024-11-07 19:39:24,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871602768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:24,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899424295] [2024-11-07 19:39:24,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:24,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:24,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:24,323 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 19:39:24,325 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 19:39:24,371 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:39:24,372 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:24,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:39:24,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:24,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:24,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899424295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:24,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:24,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-07 19:39:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327693603] [2024-11-07 19:39:24,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:24,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:39:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:39:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:39:24,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:24,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 484 flow. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 19:39:24,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:24,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:24,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:24,640 INFO L124 PetriNetUnfolderBase]: 145/307 cut-off events. [2024-11-07 19:39:24,640 INFO L125 PetriNetUnfolderBase]: For 2165/2165 co-relation queries the response was YES. [2024-11-07 19:39:24,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 307 events. 145/307 cut-off events. For 2165/2165 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1279 event pairs, 3 based on Foata normal form. 15/321 useless extension candidates. Maximal degree in co-relation 928. Up to 105 conditions per place. [2024-11-07 19:39:24,643 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 54 selfloop transitions, 28 changer transitions 8/93 dead transitions. [2024-11-07 19:39:24,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 93 transitions, 1012 flow [2024-11-07 19:39:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:24,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 107 transitions. [2024-11-07 19:39:24,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2024-11-07 19:39:24,647 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 484 flow. Second operand 9 states and 107 transitions. [2024-11-07 19:39:24,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 93 transitions, 1012 flow [2024-11-07 19:39:24,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 93 transitions, 991 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:24,657 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 737 flow [2024-11-07 19:39:24,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=737, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-11-07 19:39:24,659 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 42 predicate places. [2024-11-07 19:39:24,659 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 737 flow [2024-11-07 19:39:24,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 19:39:24,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:24,659 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:24,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 19:39:24,859 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,SelfDestructingSolverStorable7 [2024-11-07 19:39:24,860 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 19:39:24,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:24,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1574603168, now seen corresponding path program 4 times [2024-11-07 19:39:24,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:24,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480700966] [2024-11-07 19:39:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:24,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:24,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:24,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:24,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480700966] [2024-11-07 19:39:24,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480700966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:24,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291539030] [2024-11-07 19:39:24,918 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:24,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:24,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:24,921 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 19:39:24,922 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 19:39:24,970 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:24,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:24,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:39:24,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:25,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:25,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:25,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291539030] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:25,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:25,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2024-11-07 19:39:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783975685] [2024-11-07 19:39:25,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:25,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:39:25,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:39:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:39:25,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:25,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 737 flow. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:25,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:25,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:25,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:25,268 INFO L124 PetriNetUnfolderBase]: 141/305 cut-off events. [2024-11-07 19:39:25,268 INFO L125 PetriNetUnfolderBase]: For 2766/2766 co-relation queries the response was YES. [2024-11-07 19:39:25,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 305 events. 141/305 cut-off events. For 2766/2766 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1298 event pairs, 2 based on Foata normal form. 4/308 useless extension candidates. Maximal degree in co-relation 1597. Up to 92 conditions per place. [2024-11-07 19:39:25,271 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 59 selfloop transitions, 40 changer transitions 0/102 dead transitions. [2024-11-07 19:39:25,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 102 transitions, 1245 flow [2024-11-07 19:39:25,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:39:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:39:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 128 transitions. [2024-11-07 19:39:25,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2024-11-07 19:39:25,273 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 737 flow. Second operand 11 states and 128 transitions. [2024-11-07 19:39:25,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 102 transitions, 1245 flow [2024-11-07 19:39:25,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 102 transitions, 1142 flow, removed 50 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:25,296 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 924 flow [2024-11-07 19:39:25,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=924, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2024-11-07 19:39:25,297 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 55 predicate places. [2024-11-07 19:39:25,297 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 924 flow [2024-11-07 19:39:25,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:25,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:25,298 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:25,321 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 19:39:25,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:25,499 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 19:39:25,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:25,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1466798584, now seen corresponding path program 5 times [2024-11-07 19:39:25,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:25,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447145122] [2024-11-07 19:39:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:25,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:25,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:25,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447145122] [2024-11-07 19:39:25,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447145122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:25,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909617929] [2024-11-07 19:39:25,554 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:25,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:25,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:25,557 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 19:39:25,558 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 19:39:25,601 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:25,601 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:25,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:39:25,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:25,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:25,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909617929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:25,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:25,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 19:39:25,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397363394] [2024-11-07 19:39:25,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:25,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:39:25,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:25,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:39:25,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:39:25,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:25,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 924 flow. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:25,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:25,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:25,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:25,908 INFO L124 PetriNetUnfolderBase]: 179/395 cut-off events. [2024-11-07 19:39:25,909 INFO L125 PetriNetUnfolderBase]: For 3668/3668 co-relation queries the response was YES. [2024-11-07 19:39:25,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2523 conditions, 395 events. 179/395 cut-off events. For 3668/3668 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1793 event pairs, 5 based on Foata normal form. 10/404 useless extension candidates. Maximal degree in co-relation 2177. Up to 171 conditions per place. [2024-11-07 19:39:25,912 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 67 selfloop transitions, 48 changer transitions 0/118 dead transitions. [2024-11-07 19:39:25,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 118 transitions, 1702 flow [2024-11-07 19:39:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:39:25,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:39:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 133 transitions. [2024-11-07 19:39:25,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5541666666666667 [2024-11-07 19:39:25,913 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 924 flow. Second operand 12 states and 133 transitions. [2024-11-07 19:39:25,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 118 transitions, 1702 flow [2024-11-07 19:39:25,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 118 transitions, 1543 flow, removed 68 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:25,926 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 1354 flow [2024-11-07 19:39:25,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1354, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2024-11-07 19:39:25,927 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 68 predicate places. [2024-11-07 19:39:25,928 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 1354 flow [2024-11-07 19:39:25,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:25,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:25,928 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:25,944 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 19:39:26,129 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,SelfDestructingSolverStorable9 [2024-11-07 19:39:26,129 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 19:39:26,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 994185525, now seen corresponding path program 6 times [2024-11-07 19:39:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974930691] [2024-11-07 19:39:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974930691] [2024-11-07 19:39:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974930691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195019095] [2024-11-07 19:39:26,181 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:26,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:26,184 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 19:39:26,185 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 19:39:26,238 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:39:26,238 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:26,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:39:26,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:26,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195019095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:26,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:26,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-07 19:39:26,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141428790] [2024-11-07 19:39:26,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:26,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:39:26,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:26,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:39:26,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:39:26,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:26,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 1354 flow. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 19:39:26,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:26,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:26,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:26,526 INFO L124 PetriNetUnfolderBase]: 201/451 cut-off events. [2024-11-07 19:39:26,527 INFO L125 PetriNetUnfolderBase]: For 5106/5106 co-relation queries the response was YES. [2024-11-07 19:39:26,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3029 conditions, 451 events. 201/451 cut-off events. For 5106/5106 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2198 event pairs, 10 based on Foata normal form. 8/458 useless extension candidates. Maximal degree in co-relation 2603. Up to 133 conditions per place. [2024-11-07 19:39:26,531 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 83 selfloop transitions, 42 changer transitions 7/135 dead transitions. [2024-11-07 19:39:26,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 135 transitions, 2123 flow [2024-11-07 19:39:26,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:26,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 103 transitions. [2024-11-07 19:39:26,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5722222222222222 [2024-11-07 19:39:26,532 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 1354 flow. Second operand 9 states and 103 transitions. [2024-11-07 19:39:26,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 135 transitions, 2123 flow [2024-11-07 19:39:26,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 135 transitions, 1969 flow, removed 55 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:26,553 INFO L231 Difference]: Finished difference. Result has 99 places, 105 transitions, 1636 flow [2024-11-07 19:39:26,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1636, PETRI_PLACES=99, PETRI_TRANSITIONS=105} [2024-11-07 19:39:26,554 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 77 predicate places. [2024-11-07 19:39:26,554 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 105 transitions, 1636 flow [2024-11-07 19:39:26,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 19:39:26,554 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:26,554 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:26,571 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 19:39:26,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:26,755 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 19:39:26,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:26,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1646220155, now seen corresponding path program 7 times [2024-11-07 19:39:26,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:26,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172494681] [2024-11-07 19:39:26,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:26,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:26,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172494681] [2024-11-07 19:39:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172494681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889145575] [2024-11-07 19:39:26,800 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:26,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:26,802 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 19:39:26,804 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 19:39:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:26,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:39:26,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:26,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:26,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889145575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:26,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:26,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2024-11-07 19:39:26,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427510235] [2024-11-07 19:39:26,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:26,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:39:26,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:26,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:39:26,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:39:26,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:26,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 105 transitions, 1636 flow. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:26,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:26,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:26,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:27,166 INFO L124 PetriNetUnfolderBase]: 214/480 cut-off events. [2024-11-07 19:39:27,166 INFO L125 PetriNetUnfolderBase]: For 6164/6164 co-relation queries the response was YES. [2024-11-07 19:39:27,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3369 conditions, 480 events. 214/480 cut-off events. For 6164/6164 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2396 event pairs, 3 based on Foata normal form. 5/484 useless extension candidates. Maximal degree in co-relation 3164. Up to 150 conditions per place. [2024-11-07 19:39:27,170 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 93 selfloop transitions, 57 changer transitions 1/154 dead transitions. [2024-11-07 19:39:27,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 154 transitions, 2392 flow [2024-11-07 19:39:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:39:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:39:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 129 transitions. [2024-11-07 19:39:27,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5863636363636363 [2024-11-07 19:39:27,173 INFO L175 Difference]: Start difference. First operand has 99 places, 105 transitions, 1636 flow. Second operand 11 states and 129 transitions. [2024-11-07 19:39:27,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 154 transitions, 2392 flow [2024-11-07 19:39:27,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 154 transitions, 2263 flow, removed 63 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:27,197 INFO L231 Difference]: Finished difference. Result has 112 places, 118 transitions, 1933 flow [2024-11-07 19:39:27,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1933, PETRI_PLACES=112, PETRI_TRANSITIONS=118} [2024-11-07 19:39:27,198 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 90 predicate places. [2024-11-07 19:39:27,198 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 118 transitions, 1933 flow [2024-11-07 19:39:27,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:27,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:27,198 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:27,216 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 19:39:27,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:27,399 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 19:39:27,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1256785582, now seen corresponding path program 8 times [2024-11-07 19:39:27,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:27,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233063000] [2024-11-07 19:39:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:27,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:27,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233063000] [2024-11-07 19:39:27,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233063000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:27,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56952665] [2024-11-07 19:39:27,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:27,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:27,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:27,453 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 19:39:27,455 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 19:39:27,498 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:27,498 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:27,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:39:27,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:27,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:27,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56952665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:27,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:27,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2024-11-07 19:39:27,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812716145] [2024-11-07 19:39:27,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:27,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:39:27,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:27,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:39:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:39:27,617 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:27,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 118 transitions, 1933 flow. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:27,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:27,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:27,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:27,785 INFO L124 PetriNetUnfolderBase]: 206/454 cut-off events. [2024-11-07 19:39:27,786 INFO L125 PetriNetUnfolderBase]: For 6677/6677 co-relation queries the response was YES. [2024-11-07 19:39:27,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 454 events. 206/454 cut-off events. For 6677/6677 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2184 event pairs, 7 based on Foata normal form. 6/459 useless extension candidates. Maximal degree in co-relation 3216. Up to 182 conditions per place. [2024-11-07 19:39:27,792 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 88 selfloop transitions, 41 changer transitions 1/133 dead transitions. [2024-11-07 19:39:27,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 133 transitions, 2293 flow [2024-11-07 19:39:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:39:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:39:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 106 transitions. [2024-11-07 19:39:27,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53 [2024-11-07 19:39:27,793 INFO L175 Difference]: Start difference. First operand has 112 places, 118 transitions, 1933 flow. Second operand 10 states and 106 transitions. [2024-11-07 19:39:27,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 133 transitions, 2293 flow [2024-11-07 19:39:27,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 133 transitions, 2163 flow, removed 40 selfloop flow, removed 5 redundant places. [2024-11-07 19:39:27,819 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 1820 flow [2024-11-07 19:39:27,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1737, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1820, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2024-11-07 19:39:27,820 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 95 predicate places. [2024-11-07 19:39:27,820 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 1820 flow [2024-11-07 19:39:27,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 19:39:27,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:27,821 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:27,837 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 19:39:28,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:28,021 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 19:39:28,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2142616824, now seen corresponding path program 9 times [2024-11-07 19:39:28,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:28,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796740232] [2024-11-07 19:39:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:28,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:28,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:28,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796740232] [2024-11-07 19:39:28,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796740232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850793385] [2024-11-07 19:39:28,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:28,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:28,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:28,155 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 19:39:28,156 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 19:39:28,200 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:39:28,200 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:28,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:39:28,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:28,294 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 19:39:28,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:28,342 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 19:39:28,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850793385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:28,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:28,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 4] total 14 [2024-11-07 19:39:28,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823641051] [2024-11-07 19:39:28,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:28,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:39:28,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:28,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:39:28,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:39:28,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:28,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 1820 flow. Second operand has 15 states, 15 states have (on average 8.666666666666666) internal successors, (130), 15 states have internal predecessors, (130), 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 19:39:28,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:28,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:28,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:28,595 INFO L124 PetriNetUnfolderBase]: 319/673 cut-off events. [2024-11-07 19:39:28,595 INFO L125 PetriNetUnfolderBase]: For 12358/12358 co-relation queries the response was YES. [2024-11-07 19:39:28,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5120 conditions, 673 events. 319/673 cut-off events. For 12358/12358 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3520 event pairs, 13 based on Foata normal form. 29/701 useless extension candidates. Maximal degree in co-relation 4753. Up to 362 conditions per place. [2024-11-07 19:39:28,605 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 130 selfloop transitions, 55 changer transitions 3/191 dead transitions. [2024-11-07 19:39:28,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 191 transitions, 3216 flow [2024-11-07 19:39:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:39:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:39:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 128 transitions. [2024-11-07 19:39:28,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-11-07 19:39:28,607 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 1820 flow. Second operand 10 states and 128 transitions. [2024-11-07 19:39:28,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 191 transitions, 3216 flow [2024-11-07 19:39:28,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 191 transitions, 3134 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:28,640 INFO L231 Difference]: Finished difference. Result has 128 places, 151 transitions, 2618 flow [2024-11-07 19:39:28,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1753, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2618, PETRI_PLACES=128, PETRI_TRANSITIONS=151} [2024-11-07 19:39:28,640 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 106 predicate places. [2024-11-07 19:39:28,640 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 151 transitions, 2618 flow [2024-11-07 19:39:28,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.666666666666666) internal successors, (130), 15 states have internal predecessors, (130), 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 19:39:28,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:28,641 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:28,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:28,841 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,SelfDestructingSolverStorable13 [2024-11-07 19:39:28,841 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 19:39:28,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:28,842 INFO L85 PathProgramCache]: Analyzing trace with hash -676128482, now seen corresponding path program 10 times [2024-11-07 19:39:28,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:28,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175128686] [2024-11-07 19:39:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:28,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:28,950 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 19:39:28,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:28,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175128686] [2024-11-07 19:39:28,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175128686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028767945] [2024-11-07 19:39:28,951 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:28,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:28,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:28,953 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 19:39:28,954 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 19:39:28,998 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:28,998 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:28,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:39:29,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:29,103 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 19:39:29,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:29,307 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 19:39:29,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028767945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:29,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:29,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2024-11-07 19:39:29,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397384207] [2024-11-07 19:39:29,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:29,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:39:29,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:29,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:39:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:39:29,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:29,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 151 transitions, 2618 flow. Second operand has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 17 states have internal predecessors, (141), 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 19:39:29,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:29,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:29,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:30,082 INFO L124 PetriNetUnfolderBase]: 547/1120 cut-off events. [2024-11-07 19:39:30,083 INFO L125 PetriNetUnfolderBase]: For 24900/24900 co-relation queries the response was YES. [2024-11-07 19:39:30,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9594 conditions, 1120 events. 547/1120 cut-off events. For 24900/24900 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 6566 event pairs, 7 based on Foata normal form. 48/1167 useless extension candidates. Maximal degree in co-relation 9138. Up to 304 conditions per place. [2024-11-07 19:39:30,094 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 155 selfloop transitions, 136 changer transitions 31/325 dead transitions. [2024-11-07 19:39:30,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 325 transitions, 6321 flow [2024-11-07 19:39:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 19:39:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 19:39:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 261 transitions. [2024-11-07 19:39:30,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5673913043478261 [2024-11-07 19:39:30,097 INFO L175 Difference]: Start difference. First operand has 128 places, 151 transitions, 2618 flow. Second operand 23 states and 261 transitions. [2024-11-07 19:39:30,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 325 transitions, 6321 flow [2024-11-07 19:39:30,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 325 transitions, 6054 flow, removed 127 selfloop flow, removed 2 redundant places. [2024-11-07 19:39:30,162 INFO L231 Difference]: Finished difference. Result has 160 places, 239 transitions, 4829 flow [2024-11-07 19:39:30,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=2425, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4829, PETRI_PLACES=160, PETRI_TRANSITIONS=239} [2024-11-07 19:39:30,163 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 138 predicate places. [2024-11-07 19:39:30,163 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 239 transitions, 4829 flow [2024-11-07 19:39:30,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 17 states have internal predecessors, (141), 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 19:39:30,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:30,163 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:30,177 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 19:39:30,364 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,SelfDestructingSolverStorable14 [2024-11-07 19:39:30,364 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:30,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1809904300, now seen corresponding path program 11 times [2024-11-07 19:39:30,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:30,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559685739] [2024-11-07 19:39:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:30,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:30,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:30,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559685739] [2024-11-07 19:39:30,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559685739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:30,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808361930] [2024-11-07 19:39:30,449 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:30,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:30,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:30,451 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 19:39:30,453 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 19:39:30,496 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:30,497 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:30,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:30,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:30,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:39:30,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:30,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808361930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:30,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:30,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-07 19:39:30,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549741860] [2024-11-07 19:39:30,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:30,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:39:30,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:30,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:39:30,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:39:30,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:30,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 239 transitions, 4829 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:30,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:30,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:30,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:30,774 INFO L124 PetriNetUnfolderBase]: 509/1018 cut-off events. [2024-11-07 19:39:30,774 INFO L125 PetriNetUnfolderBase]: For 28830/28833 co-relation queries the response was YES. [2024-11-07 19:39:30,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9625 conditions, 1018 events. 509/1018 cut-off events. For 28830/28833 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5709 event pairs, 27 based on Foata normal form. 9/1025 useless extension candidates. Maximal degree in co-relation 9448. Up to 531 conditions per place. [2024-11-07 19:39:30,783 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 166 selfloop transitions, 21 changer transitions 67/257 dead transitions. [2024-11-07 19:39:30,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 257 transitions, 5618 flow [2024-11-07 19:39:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:30,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2024-11-07 19:39:30,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-11-07 19:39:30,784 INFO L175 Difference]: Start difference. First operand has 160 places, 239 transitions, 4829 flow. Second operand 6 states and 64 transitions. [2024-11-07 19:39:30,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 257 transitions, 5618 flow [2024-11-07 19:39:30,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 257 transitions, 4588 flow, removed 475 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:30,869 INFO L231 Difference]: Finished difference. Result has 162 places, 183 transitions, 3084 flow [2024-11-07 19:39:30,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=3818, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3084, PETRI_PLACES=162, PETRI_TRANSITIONS=183} [2024-11-07 19:39:30,869 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 140 predicate places. [2024-11-07 19:39:30,869 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 183 transitions, 3084 flow [2024-11-07 19:39:30,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:30,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:30,870 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:30,881 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 19:39:31,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:31,070 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:31,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1732684414, now seen corresponding path program 12 times [2024-11-07 19:39:31,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679457348] [2024-11-07 19:39:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,160 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 19:39:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679457348] [2024-11-07 19:39:31,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679457348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86563395] [2024-11-07 19:39:31,160 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:31,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:31,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:31,163 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 19:39:31,164 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 19:39:31,209 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:39:31,209 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:31,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:39:31,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:31,309 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 19:39:31,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:31,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86563395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:31,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:31,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-07 19:39:31,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988944902] [2024-11-07 19:39:31,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:39:31,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:39:31,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:39:31,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:31,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 183 transitions, 3084 flow. Second operand has 19 states, 19 states have (on average 8.105263157894736) internal successors, (154), 19 states have internal predecessors, (154), 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 19:39:31,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:31,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,085 INFO L124 PetriNetUnfolderBase]: 584/1196 cut-off events. [2024-11-07 19:39:32,086 INFO L125 PetriNetUnfolderBase]: For 53442/53442 co-relation queries the response was YES. [2024-11-07 19:39:32,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11348 conditions, 1196 events. 584/1196 cut-off events. For 53442/53442 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7061 event pairs, 7 based on Foata normal form. 33/1228 useless extension candidates. Maximal degree in co-relation 11283. Up to 292 conditions per place. [2024-11-07 19:39:32,107 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 134 selfloop transitions, 177 changer transitions 26/340 dead transitions. [2024-11-07 19:39:32,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 340 transitions, 6643 flow [2024-11-07 19:39:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 19:39:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-07 19:39:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 306 transitions. [2024-11-07 19:39:32,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5884615384615385 [2024-11-07 19:39:32,109 INFO L175 Difference]: Start difference. First operand has 162 places, 183 transitions, 3084 flow. Second operand 26 states and 306 transitions. [2024-11-07 19:39:32,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 340 transitions, 6643 flow [2024-11-07 19:39:32,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 340 transitions, 5951 flow, removed 166 selfloop flow, removed 18 redundant places. [2024-11-07 19:39:32,251 INFO L231 Difference]: Finished difference. Result has 168 places, 246 transitions, 4546 flow [2024-11-07 19:39:32,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=2698, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4546, PETRI_PLACES=168, PETRI_TRANSITIONS=246} [2024-11-07 19:39:32,252 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 146 predicate places. [2024-11-07 19:39:32,252 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 246 transitions, 4546 flow [2024-11-07 19:39:32,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.105263157894736) internal successors, (154), 19 states have internal predecessors, (154), 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 19:39:32,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,252 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 19:39:32,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 19:39:32,453 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:32,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1378983225, now seen corresponding path program 13 times [2024-11-07 19:39:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860498808] [2024-11-07 19:39:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:32,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860498808] [2024-11-07 19:39:32,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860498808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:32,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779826206] [2024-11-07 19:39:32,525 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:32,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:32,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:32,527 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:39:32,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 19:39:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:32,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:32,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:32,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779826206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:32,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:32,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-07 19:39:32,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310447980] [2024-11-07 19:39:32,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:39:32,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:39:32,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:39:32,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:32,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 246 transitions, 4546 flow. Second operand has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 14 states have internal predecessors, (115), 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 19:39:32,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:32,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:33,094 INFO L124 PetriNetUnfolderBase]: 556/1177 cut-off events. [2024-11-07 19:39:33,094 INFO L125 PetriNetUnfolderBase]: For 53560/53560 co-relation queries the response was YES. [2024-11-07 19:39:33,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11321 conditions, 1177 events. 556/1177 cut-off events. For 53560/53560 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7127 event pairs, 11 based on Foata normal form. 36/1212 useless extension candidates. Maximal degree in co-relation 11256. Up to 291 conditions per place. [2024-11-07 19:39:33,108 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 129 selfloop transitions, 132 changer transitions 46/310 dead transitions. [2024-11-07 19:39:33,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 310 transitions, 6358 flow [2024-11-07 19:39:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:39:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:39:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 138 transitions. [2024-11-07 19:39:33,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-07 19:39:33,109 INFO L175 Difference]: Start difference. First operand has 168 places, 246 transitions, 4546 flow. Second operand 12 states and 138 transitions. [2024-11-07 19:39:33,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 310 transitions, 6358 flow [2024-11-07 19:39:33,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 310 transitions, 5679 flow, removed 297 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:33,254 INFO L231 Difference]: Finished difference. Result has 175 places, 230 transitions, 4582 flow [2024-11-07 19:39:33,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=3838, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4582, PETRI_PLACES=175, PETRI_TRANSITIONS=230} [2024-11-07 19:39:33,254 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 153 predicate places. [2024-11-07 19:39:33,254 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 230 transitions, 4582 flow [2024-11-07 19:39:33,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 14 states have internal predecessors, (115), 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 19:39:33,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:33,254 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:33,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 19:39:33,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 19:39:33,455 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:33,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:33,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1845930441, now seen corresponding path program 14 times [2024-11-07 19:39:33,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:33,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132988205] [2024-11-07 19:39:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:33,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:33,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:33,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:33,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132988205] [2024-11-07 19:39:33,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132988205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:33,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991225645] [2024-11-07 19:39:33,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:33,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:33,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:33,507 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:39:33,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-07 19:39:33,556 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:33,556 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:33,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:33,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:33,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:33,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991225645] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:33,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:33,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-07 19:39:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422290469] [2024-11-07 19:39:33,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:33,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:39:33,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:33,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:39:33,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:39:33,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:33,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 230 transitions, 4582 flow. Second operand has 16 states, 16 states have (on average 8.1875) internal successors, (131), 16 states have internal predecessors, (131), 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 19:39:33,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:33,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:33,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:34,065 INFO L124 PetriNetUnfolderBase]: 466/968 cut-off events. [2024-11-07 19:39:34,066 INFO L125 PetriNetUnfolderBase]: For 45890/45890 co-relation queries the response was YES. [2024-11-07 19:39:34,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9600 conditions, 968 events. 466/968 cut-off events. For 45890/45890 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5422 event pairs, 15 based on Foata normal form. 4/971 useless extension candidates. Maximal degree in co-relation 9533. Up to 270 conditions per place. [2024-11-07 19:39:34,076 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 125 selfloop transitions, 146 changer transitions 3/277 dead transitions. [2024-11-07 19:39:34,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 277 transitions, 5654 flow [2024-11-07 19:39:34,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 19:39:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 19:39:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 164 transitions. [2024-11-07 19:39:34,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-11-07 19:39:34,078 INFO L175 Difference]: Start difference. First operand has 175 places, 230 transitions, 4582 flow. Second operand 15 states and 164 transitions. [2024-11-07 19:39:34,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 277 transitions, 5654 flow [2024-11-07 19:39:34,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 277 transitions, 5083 flow, removed 266 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:34,273 INFO L231 Difference]: Finished difference. Result has 183 places, 237 transitions, 4598 flow [2024-11-07 19:39:34,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4059, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4598, PETRI_PLACES=183, PETRI_TRANSITIONS=237} [2024-11-07 19:39:34,274 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 161 predicate places. [2024-11-07 19:39:34,274 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 237 transitions, 4598 flow [2024-11-07 19:39:34,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.1875) internal successors, (131), 16 states have internal predecessors, (131), 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 19:39:34,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,274 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-07 19:39:34,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:34,475 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:34,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:34,475 INFO L85 PathProgramCache]: Analyzing trace with hash -825731912, now seen corresponding path program 15 times [2024-11-07 19:39:34,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:34,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31851346] [2024-11-07 19:39:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:34,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:34,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31851346] [2024-11-07 19:39:34,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31851346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105565463] [2024-11-07 19:39:34,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:34,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:34,529 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:39:34,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-07 19:39:34,578 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:39:34,578 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:34,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:34,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:34,627 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 19:39:34,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:34,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105565463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:34,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:34,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2024-11-07 19:39:34,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274239805] [2024-11-07 19:39:34,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:34,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:39:34,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:34,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:39:34,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:39:34,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:34,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 237 transitions, 4598 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:34,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:34,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:34,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:34,858 INFO L124 PetriNetUnfolderBase]: 537/1173 cut-off events. [2024-11-07 19:39:34,858 INFO L125 PetriNetUnfolderBase]: For 19473/19473 co-relation queries the response was YES. [2024-11-07 19:39:34,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9821 conditions, 1173 events. 537/1173 cut-off events. For 19473/19473 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 7321 event pairs, 24 based on Foata normal form. 23/1195 useless extension candidates. Maximal degree in co-relation 9756. Up to 613 conditions per place. [2024-11-07 19:39:34,865 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 203 selfloop transitions, 26 changer transitions 64/296 dead transitions. [2024-11-07 19:39:34,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 296 transitions, 6075 flow [2024-11-07 19:39:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 71 transitions. [2024-11-07 19:39:34,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-07 19:39:34,866 INFO L175 Difference]: Start difference. First operand has 183 places, 237 transitions, 4598 flow. Second operand 6 states and 71 transitions. [2024-11-07 19:39:34,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 296 transitions, 6075 flow [2024-11-07 19:39:34,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 296 transitions, 5871 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:34,950 INFO L231 Difference]: Finished difference. Result has 186 places, 209 transitions, 4118 flow [2024-11-07 19:39:34,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4416, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4118, PETRI_PLACES=186, PETRI_TRANSITIONS=209} [2024-11-07 19:39:34,950 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 164 predicate places. [2024-11-07 19:39:34,951 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 209 transitions, 4118 flow [2024-11-07 19:39:34,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:34,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,951 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:35,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:35,151 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:35,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2141321098, now seen corresponding path program 16 times [2024-11-07 19:39:35,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825855082] [2024-11-07 19:39:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:35,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825855082] [2024-11-07 19:39:35,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825855082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438480723] [2024-11-07 19:39:35,202 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:35,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:35,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:35,204 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:39:35,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-07 19:39:35,245 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:35,245 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:35,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:35,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:35,312 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:35,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:35,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438480723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:35,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:35,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 14 [2024-11-07 19:39:35,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359798081] [2024-11-07 19:39:35,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:39:35,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:39:35,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:39:35,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:35,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 209 transitions, 4118 flow. Second operand has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 19:39:35,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:35,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,773 INFO L124 PetriNetUnfolderBase]: 453/956 cut-off events. [2024-11-07 19:39:35,774 INFO L125 PetriNetUnfolderBase]: For 19572/19572 co-relation queries the response was YES. [2024-11-07 19:39:35,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8719 conditions, 956 events. 453/956 cut-off events. For 19572/19572 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5357 event pairs, 0 based on Foata normal form. 15/970 useless extension candidates. Maximal degree in co-relation 8650. Up to 401 conditions per place. [2024-11-07 19:39:35,783 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 141 selfloop transitions, 137 changer transitions 8/289 dead transitions. [2024-11-07 19:39:35,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 289 transitions, 5949 flow [2024-11-07 19:39:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:39:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:39:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 175 transitions. [2024-11-07 19:39:35,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.546875 [2024-11-07 19:39:35,785 INFO L175 Difference]: Start difference. First operand has 186 places, 209 transitions, 4118 flow. Second operand 16 states and 175 transitions. [2024-11-07 19:39:35,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 289 transitions, 5949 flow [2024-11-07 19:39:35,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 289 transitions, 5770 flow, removed 54 selfloop flow, removed 8 redundant places. [2024-11-07 19:39:35,883 INFO L231 Difference]: Finished difference. Result has 197 places, 244 transitions, 5383 flow [2024-11-07 19:39:35,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=3941, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5383, PETRI_PLACES=197, PETRI_TRANSITIONS=244} [2024-11-07 19:39:35,884 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 175 predicate places. [2024-11-07 19:39:35,884 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 244 transitions, 5383 flow [2024-11-07 19:39:35,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 19:39:35,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,884 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-07 19:39:36,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:36,085 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:36,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 947284689, now seen corresponding path program 17 times [2024-11-07 19:39:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:36,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551413729] [2024-11-07 19:39:36,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:36,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:36,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551413729] [2024-11-07 19:39:36,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551413729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145482796] [2024-11-07 19:39:36,190 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:36,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:36,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:36,194 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:39:36,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-07 19:39:36,239 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:39:36,239 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:36,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:36,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 19:39:36,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145482796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:36,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:36,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-07 19:39:36,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330020685] [2024-11-07 19:39:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:36,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:39:36,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:36,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:39:36,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:39:36,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:36,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 244 transitions, 5383 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:36,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:36,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:36,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:36,486 INFO L124 PetriNetUnfolderBase]: 443/906 cut-off events. [2024-11-07 19:39:36,487 INFO L125 PetriNetUnfolderBase]: For 18788/18788 co-relation queries the response was YES. [2024-11-07 19:39:36,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8823 conditions, 906 events. 443/906 cut-off events. For 18788/18788 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4867 event pairs, 3 based on Foata normal form. 8/913 useless extension candidates. Maximal degree in co-relation 8752. Up to 640 conditions per place. [2024-11-07 19:39:36,493 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 213 selfloop transitions, 13 changer transitions 32/261 dead transitions. [2024-11-07 19:39:36,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 261 transitions, 6102 flow [2024-11-07 19:39:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:36,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:36,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 66 transitions. [2024-11-07 19:39:36,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-07 19:39:36,495 INFO L175 Difference]: Start difference. First operand has 197 places, 244 transitions, 5383 flow. Second operand 6 states and 66 transitions. [2024-11-07 19:39:36,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 261 transitions, 6102 flow [2024-11-07 19:39:36,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 261 transitions, 5693 flow, removed 182 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:36,602 INFO L231 Difference]: Finished difference. Result has 197 places, 222 transitions, 4641 flow [2024-11-07 19:39:36,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4998, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4641, PETRI_PLACES=197, PETRI_TRANSITIONS=222} [2024-11-07 19:39:36,602 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 175 predicate places. [2024-11-07 19:39:36,603 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 222 transitions, 4641 flow [2024-11-07 19:39:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:36,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:36,603 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:36,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-07 19:39:36,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:36,808 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:36,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:36,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1592140175, now seen corresponding path program 18 times [2024-11-07 19:39:36,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:36,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689361859] [2024-11-07 19:39:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:36,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689361859] [2024-11-07 19:39:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689361859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:36,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982734059] [2024-11-07 19:39:36,905 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:36,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:36,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:36,907 INFO L229 MonitoredProcess]: Starting monitored process 20 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 19:39:36,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-07 19:39:36,947 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-07 19:39:36,947 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:36,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:36,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:37,062 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:39:37,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982734059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:37,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:37,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 5] total 19 [2024-11-07 19:39:37,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196404437] [2024-11-07 19:39:37,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:37,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 19:39:37,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:37,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 19:39:37,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-07 19:39:37,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:37,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 222 transitions, 4641 flow. Second operand has 20 states, 20 states have (on average 8.2) internal successors, (164), 20 states have internal predecessors, (164), 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 19:39:37,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:37,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:37,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:37,499 INFO L124 PetriNetUnfolderBase]: 455/907 cut-off events. [2024-11-07 19:39:37,499 INFO L125 PetriNetUnfolderBase]: For 20642/20642 co-relation queries the response was YES. [2024-11-07 19:39:37,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8810 conditions, 907 events. 455/907 cut-off events. For 20642/20642 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4734 event pairs, 6 based on Foata normal form. 13/919 useless extension candidates. Maximal degree in co-relation 8739. Up to 630 conditions per place. [2024-11-07 19:39:37,508 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 196 selfloop transitions, 77 changer transitions 19/295 dead transitions. [2024-11-07 19:39:37,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 295 transitions, 6542 flow [2024-11-07 19:39:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:39:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:39:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 157 transitions. [2024-11-07 19:39:37,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6038461538461538 [2024-11-07 19:39:37,509 INFO L175 Difference]: Start difference. First operand has 197 places, 222 transitions, 4641 flow. Second operand 13 states and 157 transitions. [2024-11-07 19:39:37,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 295 transitions, 6542 flow [2024-11-07 19:39:37,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 295 transitions, 6177 flow, removed 96 selfloop flow, removed 12 redundant places. [2024-11-07 19:39:37,592 INFO L231 Difference]: Finished difference. Result has 193 places, 257 transitions, 5445 flow [2024-11-07 19:39:37,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5445, PETRI_PLACES=193, PETRI_TRANSITIONS=257} [2024-11-07 19:39:37,593 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 171 predicate places. [2024-11-07 19:39:37,593 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 257 transitions, 5445 flow [2024-11-07 19:39:37,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.2) internal successors, (164), 20 states have internal predecessors, (164), 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 19:39:37,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:37,593 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:37,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:37,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:37,794 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:37,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash -979714485, now seen corresponding path program 19 times [2024-11-07 19:39:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:37,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152057504] [2024-11-07 19:39:37,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:37,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:37,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152057504] [2024-11-07 19:39:37,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152057504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:37,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064033981] [2024-11-07 19:39:37,874 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:37,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:37,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:37,877 INFO L229 MonitoredProcess]: Starting monitored process 21 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 19:39:37,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-07 19:39:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:37,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 19:39:37,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:38,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:38,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064033981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:38,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:38,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 21 [2024-11-07 19:39:38,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160905513] [2024-11-07 19:39:38,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:38,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 19:39:38,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:38,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 19:39:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-11-07 19:39:38,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:38,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 257 transitions, 5445 flow. Second operand has 22 states, 22 states have (on average 8.045454545454545) internal successors, (177), 22 states have internal predecessors, (177), 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 19:39:38,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:38,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:38,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:38,994 INFO L124 PetriNetUnfolderBase]: 631/1277 cut-off events. [2024-11-07 19:39:38,994 INFO L125 PetriNetUnfolderBase]: For 27984/27984 co-relation queries the response was YES. [2024-11-07 19:39:38,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12876 conditions, 1277 events. 631/1277 cut-off events. For 27984/27984 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7351 event pairs, 2 based on Foata normal form. 15/1291 useless extension candidates. Maximal degree in co-relation 12806. Up to 502 conditions per place. [2024-11-07 19:39:39,000 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 206 selfloop transitions, 166 changer transitions 40/415 dead transitions. [2024-11-07 19:39:39,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 415 transitions, 9770 flow [2024-11-07 19:39:39,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 19:39:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 19:39:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 240 transitions. [2024-11-07 19:39:39,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-07 19:39:39,002 INFO L175 Difference]: Start difference. First operand has 193 places, 257 transitions, 5445 flow. Second operand 22 states and 240 transitions. [2024-11-07 19:39:39,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 415 transitions, 9770 flow [2024-11-07 19:39:39,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 415 transitions, 9508 flow, removed 79 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:39,087 INFO L231 Difference]: Finished difference. Result has 226 places, 337 transitions, 8045 flow [2024-11-07 19:39:39,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=5191, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8045, PETRI_PLACES=226, PETRI_TRANSITIONS=337} [2024-11-07 19:39:39,088 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 204 predicate places. [2024-11-07 19:39:39,088 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 337 transitions, 8045 flow [2024-11-07 19:39:39,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.045454545454545) internal successors, (177), 22 states have internal predecessors, (177), 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 19:39:39,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:39,088 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:39,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-07 19:39:39,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:39,289 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:39,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1756998325, now seen corresponding path program 20 times [2024-11-07 19:39:39,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:39,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737390180] [2024-11-07 19:39:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:39,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:39,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737390180] [2024-11-07 19:39:39,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737390180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:39,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132357698] [2024-11-07 19:39:39,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:39,372 INFO L229 MonitoredProcess]: Starting monitored process 22 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 19:39:39,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-07 19:39:39,421 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:39,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:39,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:39:39,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:39,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:39,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:39,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132357698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:39,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:39,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 23 [2024-11-07 19:39:39,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948064615] [2024-11-07 19:39:39,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:39,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 19:39:39,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 19:39:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2024-11-07 19:39:39,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:39,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 337 transitions, 8045 flow. Second operand has 24 states, 24 states have (on average 7.875) internal successors, (189), 24 states have internal predecessors, (189), 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 19:39:39,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:39,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:39,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:40,245 INFO L124 PetriNetUnfolderBase]: 660/1328 cut-off events. [2024-11-07 19:39:40,245 INFO L125 PetriNetUnfolderBase]: For 33121/33121 co-relation queries the response was YES. [2024-11-07 19:39:40,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14312 conditions, 1328 events. 660/1328 cut-off events. For 33121/33121 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 7714 event pairs, 0 based on Foata normal form. 26/1353 useless extension candidates. Maximal degree in co-relation 14226. Up to 580 conditions per place. [2024-11-07 19:39:40,256 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 240 selfloop transitions, 152 changer transitions 27/422 dead transitions. [2024-11-07 19:39:40,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 422 transitions, 10728 flow [2024-11-07 19:39:40,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 19:39:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 19:39:40,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 186 transitions. [2024-11-07 19:39:40,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-07 19:39:40,257 INFO L175 Difference]: Start difference. First operand has 226 places, 337 transitions, 8045 flow. Second operand 18 states and 186 transitions. [2024-11-07 19:39:40,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 422 transitions, 10728 flow [2024-11-07 19:39:40,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 422 transitions, 9525 flow, removed 592 selfloop flow, removed 5 redundant places. [2024-11-07 19:39:40,433 INFO L231 Difference]: Finished difference. Result has 246 places, 370 transitions, 8420 flow [2024-11-07 19:39:40,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=6922, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8420, PETRI_PLACES=246, PETRI_TRANSITIONS=370} [2024-11-07 19:39:40,434 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 224 predicate places. [2024-11-07 19:39:40,434 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 370 transitions, 8420 flow [2024-11-07 19:39:40,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.875) internal successors, (189), 24 states have internal predecessors, (189), 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 19:39:40,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:40,434 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:40,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-07 19:39:40,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-07 19:39:40,635 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:40,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash 823897567, now seen corresponding path program 21 times [2024-11-07 19:39:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:40,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969031025] [2024-11-07 19:39:40,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:40,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:40,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969031025] [2024-11-07 19:39:40,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969031025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:40,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524619792] [2024-11-07 19:39:40,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:40,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:40,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:40,752 INFO L229 MonitoredProcess]: Starting monitored process 23 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 19:39:40,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-07 19:39:40,797 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:39:40,798 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:40,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:40,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 19:39:40,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:40,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524619792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:40,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:40,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-07 19:39:40,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372508816] [2024-11-07 19:39:40,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:40,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:39:40,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:39:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:39:40,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:40,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 370 transitions, 8420 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:40,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:40,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:40,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:41,131 INFO L124 PetriNetUnfolderBase]: 665/1310 cut-off events. [2024-11-07 19:39:41,131 INFO L125 PetriNetUnfolderBase]: For 30027/30030 co-relation queries the response was YES. [2024-11-07 19:39:41,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13563 conditions, 1310 events. 665/1310 cut-off events. For 30027/30030 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7394 event pairs, 12 based on Foata normal form. 2/1310 useless extension candidates. Maximal degree in co-relation 13468. Up to 971 conditions per place. [2024-11-07 19:39:41,142 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 365 selfloop transitions, 35 changer transitions 7/410 dead transitions. [2024-11-07 19:39:41,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 410 transitions, 9916 flow [2024-11-07 19:39:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2024-11-07 19:39:41,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-07 19:39:41,144 INFO L175 Difference]: Start difference. First operand has 246 places, 370 transitions, 8420 flow. Second operand 6 states and 65 transitions. [2024-11-07 19:39:41,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 410 transitions, 9916 flow [2024-11-07 19:39:41,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 410 transitions, 9162 flow, removed 298 selfloop flow, removed 16 redundant places. [2024-11-07 19:39:41,323 INFO L231 Difference]: Finished difference. Result has 232 places, 380 transitions, 8069 flow [2024-11-07 19:39:41,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=7704, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8069, PETRI_PLACES=232, PETRI_TRANSITIONS=380} [2024-11-07 19:39:41,324 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 210 predicate places. [2024-11-07 19:39:41,324 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 380 transitions, 8069 flow [2024-11-07 19:39:41,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:41,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:41,324 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:41,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-07 19:39:41,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-07 19:39:41,524 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:41,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:41,525 INFO L85 PathProgramCache]: Analyzing trace with hash 814767967, now seen corresponding path program 22 times [2024-11-07 19:39:41,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:41,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936314519] [2024-11-07 19:39:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:41,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:41,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:41,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936314519] [2024-11-07 19:39:41,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936314519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:41,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258141481] [2024-11-07 19:39:41,621 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:41,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:41,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:41,623 INFO L229 MonitoredProcess]: Starting monitored process 24 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 19:39:41,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-07 19:39:41,671 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:41,671 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:41,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:39:41,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:41,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:41,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258141481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:41,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:41,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 19:39:41,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617034458] [2024-11-07 19:39:41,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:41,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:39:41,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:41,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:39:41,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:39:41,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:41,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 380 transitions, 8069 flow. Second operand has 25 states, 25 states have (on average 7.8) internal successors, (195), 25 states have internal predecessors, (195), 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 19:39:41,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:41,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:41,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:42,476 INFO L124 PetriNetUnfolderBase]: 739/1432 cut-off events. [2024-11-07 19:39:42,476 INFO L125 PetriNetUnfolderBase]: For 27533/27533 co-relation queries the response was YES. [2024-11-07 19:39:42,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14045 conditions, 1432 events. 739/1432 cut-off events. For 27533/27533 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8115 event pairs, 0 based on Foata normal form. 3/1434 useless extension candidates. Maximal degree in co-relation 13959. Up to 888 conditions per place. [2024-11-07 19:39:42,491 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 330 selfloop transitions, 115 changer transitions 18/466 dead transitions. [2024-11-07 19:39:42,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 466 transitions, 10473 flow [2024-11-07 19:39:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 19:39:42,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 19:39:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 199 transitions. [2024-11-07 19:39:42,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4738095238095238 [2024-11-07 19:39:42,492 INFO L175 Difference]: Start difference. First operand has 232 places, 380 transitions, 8069 flow. Second operand 21 states and 199 transitions. [2024-11-07 19:39:42,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 466 transitions, 10473 flow [2024-11-07 19:39:42,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 466 transitions, 10363 flow, removed 31 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:42,641 INFO L231 Difference]: Finished difference. Result has 250 places, 422 transitions, 9143 flow [2024-11-07 19:39:42,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=7995, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9143, PETRI_PLACES=250, PETRI_TRANSITIONS=422} [2024-11-07 19:39:42,641 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 228 predicate places. [2024-11-07 19:39:42,641 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 422 transitions, 9143 flow [2024-11-07 19:39:42,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.8) internal successors, (195), 25 states have internal predecessors, (195), 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 19:39:42,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:42,641 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:42,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-07 19:39:42,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-07 19:39:42,842 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:42,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:42,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1302697944, now seen corresponding path program 23 times [2024-11-07 19:39:42,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:42,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253457401] [2024-11-07 19:39:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:42,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:42,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253457401] [2024-11-07 19:39:42,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253457401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774026537] [2024-11-07 19:39:42,895 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:42,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:42,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:42,898 INFO L229 MonitoredProcess]: Starting monitored process 25 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 19:39:42,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-07 19:39:42,944 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-07 19:39:42,945 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:42,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:39:42,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:43,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:43,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774026537] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:43,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:43,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2024-11-07 19:39:43,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974963929] [2024-11-07 19:39:43,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:43,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:39:43,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:43,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:39:43,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:39:43,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:43,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 422 transitions, 9143 flow. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:43,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:43,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:43,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:43,545 INFO L124 PetriNetUnfolderBase]: 786/1535 cut-off events. [2024-11-07 19:39:43,545 INFO L125 PetriNetUnfolderBase]: For 33402/33402 co-relation queries the response was YES. [2024-11-07 19:39:43,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15848 conditions, 1535 events. 786/1535 cut-off events. For 33402/33402 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8920 event pairs, 0 based on Foata normal form. 8/1542 useless extension candidates. Maximal degree in co-relation 15760. Up to 473 conditions per place. [2024-11-07 19:39:43,558 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 149 selfloop transitions, 344 changer transitions 17/513 dead transitions. [2024-11-07 19:39:43,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 513 transitions, 12022 flow [2024-11-07 19:39:43,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 19:39:43,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 19:39:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 228 transitions. [2024-11-07 19:39:43,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5181818181818182 [2024-11-07 19:39:43,560 INFO L175 Difference]: Start difference. First operand has 250 places, 422 transitions, 9143 flow. Second operand 22 states and 228 transitions. [2024-11-07 19:39:43,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 513 transitions, 12022 flow [2024-11-07 19:39:43,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 513 transitions, 11674 flow, removed 171 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:43,726 INFO L231 Difference]: Finished difference. Result has 266 places, 453 transitions, 11173 flow [2024-11-07 19:39:43,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=8855, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=318, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11173, PETRI_PLACES=266, PETRI_TRANSITIONS=453} [2024-11-07 19:39:43,727 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 244 predicate places. [2024-11-07 19:39:43,727 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 453 transitions, 11173 flow [2024-11-07 19:39:43,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:43,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:43,727 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:43,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-07 19:39:43,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-07 19:39:43,927 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:43,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:43,928 INFO L85 PathProgramCache]: Analyzing trace with hash -382066885, now seen corresponding path program 24 times [2024-11-07 19:39:43,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:43,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283301027] [2024-11-07 19:39:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:43,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:39:43,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:43,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283301027] [2024-11-07 19:39:43,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283301027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:43,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301168692] [2024-11-07 19:39:43,977 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:43,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:43,980 INFO L229 MonitoredProcess]: Starting monitored process 26 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 19:39:43,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-07 19:39:44,026 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-07 19:39:44,026 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:44,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:39:44,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:44,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:44,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301168692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:44,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:44,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2024-11-07 19:39:44,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047587511] [2024-11-07 19:39:44,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:44,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:39:44,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:44,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:39:44,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:39:44,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:44,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 453 transitions, 11173 flow. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:44,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:44,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:44,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:44,843 INFO L124 PetriNetUnfolderBase]: 1020/1909 cut-off events. [2024-11-07 19:39:44,844 INFO L125 PetriNetUnfolderBase]: For 48361/48361 co-relation queries the response was YES. [2024-11-07 19:39:44,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21752 conditions, 1909 events. 1020/1909 cut-off events. For 48361/48361 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11068 event pairs, 0 based on Foata normal form. 32/1940 useless extension candidates. Maximal degree in co-relation 21663. Up to 661 conditions per place. [2024-11-07 19:39:44,859 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 289 selfloop transitions, 342 changer transitions 19/653 dead transitions. [2024-11-07 19:39:44,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 653 transitions, 17073 flow [2024-11-07 19:39:44,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 19:39:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-07 19:39:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 267 transitions. [2024-11-07 19:39:44,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5134615384615384 [2024-11-07 19:39:44,860 INFO L175 Difference]: Start difference. First operand has 266 places, 453 transitions, 11173 flow. Second operand 26 states and 267 transitions. [2024-11-07 19:39:44,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 653 transitions, 17073 flow [2024-11-07 19:39:45,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 653 transitions, 16433 flow, removed 311 selfloop flow, removed 5 redundant places. [2024-11-07 19:39:45,113 INFO L231 Difference]: Finished difference. Result has 294 places, 583 transitions, 15402 flow [2024-11-07 19:39:45,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=10689, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=214, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=15402, PETRI_PLACES=294, PETRI_TRANSITIONS=583} [2024-11-07 19:39:45,114 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 272 predicate places. [2024-11-07 19:39:45,114 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 583 transitions, 15402 flow [2024-11-07 19:39:45,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:45,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:45,114 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:45,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-07 19:39:45,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-07 19:39:45,315 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:45,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1026431971, now seen corresponding path program 25 times [2024-11-07 19:39:45,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:45,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552309593] [2024-11-07 19:39:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:45,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:39:45,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:45,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552309593] [2024-11-07 19:39:45,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552309593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:45,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343664928] [2024-11-07 19:39:45,374 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:45,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:45,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:45,376 INFO L229 MonitoredProcess]: Starting monitored process 27 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 19:39:45,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-07 19:39:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:45,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:39:45,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:45,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:45,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343664928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:45,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:45,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2024-11-07 19:39:45,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468404294] [2024-11-07 19:39:45,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:45,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:39:45,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:39:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:39:45,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:45,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 583 transitions, 15402 flow. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:45,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:45,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:45,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:46,302 INFO L124 PetriNetUnfolderBase]: 1157/2133 cut-off events. [2024-11-07 19:39:46,302 INFO L125 PetriNetUnfolderBase]: For 47656/47656 co-relation queries the response was YES. [2024-11-07 19:39:46,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25205 conditions, 2133 events. 1157/2133 cut-off events. For 47656/47656 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12447 event pairs, 0 based on Foata normal form. 8/2140 useless extension candidates. Maximal degree in co-relation 25104. Up to 689 conditions per place. [2024-11-07 19:39:46,320 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 244 selfloop transitions, 482 changer transitions 11/740 dead transitions. [2024-11-07 19:39:46,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 740 transitions, 20928 flow [2024-11-07 19:39:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-07 19:39:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-07 19:39:46,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 251 transitions. [2024-11-07 19:39:46,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.502 [2024-11-07 19:39:46,321 INFO L175 Difference]: Start difference. First operand has 294 places, 583 transitions, 15402 flow. Second operand 25 states and 251 transitions. [2024-11-07 19:39:46,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 740 transitions, 20928 flow [2024-11-07 19:39:46,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 740 transitions, 19367 flow, removed 751 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:46,677 INFO L231 Difference]: Finished difference. Result has 318 places, 687 transitions, 18685 flow [2024-11-07 19:39:46,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=14104, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=18685, PETRI_PLACES=318, PETRI_TRANSITIONS=687} [2024-11-07 19:39:46,678 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 296 predicate places. [2024-11-07 19:39:46,678 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 687 transitions, 18685 flow [2024-11-07 19:39:46,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:46,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:46,678 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:46,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-07 19:39:46,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:46,879 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:46,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:46,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1322985237, now seen corresponding path program 26 times [2024-11-07 19:39:46,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:46,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631029933] [2024-11-07 19:39:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:46,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:46,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631029933] [2024-11-07 19:39:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631029933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368558145] [2024-11-07 19:39:46,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:46,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:46,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:46,954 INFO L229 MonitoredProcess]: Starting monitored process 28 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 19:39:46,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-07 19:39:47,001 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:47,001 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:47,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:39:47,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:47,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:47,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368558145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:47,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:47,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-11-07 19:39:47,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037018582] [2024-11-07 19:39:47,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:47,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:39:47,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:47,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:39:47,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:39:47,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:47,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 687 transitions, 18685 flow. Second operand has 19 states, 19 states have (on average 7.947368421052632) internal successors, (151), 19 states have internal predecessors, (151), 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 19:39:47,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:47,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:47,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:48,045 INFO L124 PetriNetUnfolderBase]: 1183/2128 cut-off events. [2024-11-07 19:39:48,045 INFO L125 PetriNetUnfolderBase]: For 42899/42899 co-relation queries the response was YES. [2024-11-07 19:39:48,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25041 conditions, 2128 events. 1183/2128 cut-off events. For 42899/42899 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 12039 event pairs, 0 based on Foata normal form. 42/2169 useless extension candidates. Maximal degree in co-relation 24934. Up to 870 conditions per place. [2024-11-07 19:39:48,068 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 314 selfloop transitions, 414 changer transitions 4/735 dead transitions. [2024-11-07 19:39:48,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 735 transitions, 20643 flow [2024-11-07 19:39:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:39:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:39:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 171 transitions. [2024-11-07 19:39:48,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5029411764705882 [2024-11-07 19:39:48,069 INFO L175 Difference]: Start difference. First operand has 318 places, 687 transitions, 18685 flow. Second operand 17 states and 171 transitions. [2024-11-07 19:39:48,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 735 transitions, 20643 flow [2024-11-07 19:39:48,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 735 transitions, 19118 flow, removed 540 selfloop flow, removed 21 redundant places. [2024-11-07 19:39:48,413 INFO L231 Difference]: Finished difference. Result has 308 places, 705 transitions, 18394 flow [2024-11-07 19:39:48,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=16595, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18394, PETRI_PLACES=308, PETRI_TRANSITIONS=705} [2024-11-07 19:39:48,414 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 286 predicate places. [2024-11-07 19:39:48,414 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 705 transitions, 18394 flow [2024-11-07 19:39:48,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.947368421052632) internal successors, (151), 19 states have internal predecessors, (151), 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 19:39:48,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:48,414 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:48,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-07 19:39:48,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-07 19:39:48,615 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:48,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:48,615 INFO L85 PathProgramCache]: Analyzing trace with hash -343305965, now seen corresponding path program 27 times [2024-11-07 19:39:48,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:48,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246139768] [2024-11-07 19:39:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:48,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:48,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246139768] [2024-11-07 19:39:48,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246139768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:48,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910830360] [2024-11-07 19:39:48,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:48,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:48,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:48,677 INFO L229 MonitoredProcess]: Starting monitored process 29 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 19:39:48,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-07 19:39:48,721 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:39:48,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:48,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:48,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 19:39:48,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:48,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910830360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:48,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:48,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-07 19:39:48,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636313105] [2024-11-07 19:39:48,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:48,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:39:48,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:48,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:39:48,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:39:48,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:48,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 705 transitions, 18394 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:48,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:48,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:48,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:49,377 INFO L124 PetriNetUnfolderBase]: 1179/2074 cut-off events. [2024-11-07 19:39:49,377 INFO L125 PetriNetUnfolderBase]: For 29950/29950 co-relation queries the response was YES. [2024-11-07 19:39:49,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23999 conditions, 2074 events. 1179/2074 cut-off events. For 29950/29950 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 11548 event pairs, 3 based on Foata normal form. 19/2092 useless extension candidates. Maximal degree in co-relation 23902. Up to 1784 conditions per place. [2024-11-07 19:39:49,435 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 19 selfloop transitions, 1 changer transitions 703/726 dead transitions. [2024-11-07 19:39:49,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 726 transitions, 20187 flow [2024-11-07 19:39:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2024-11-07 19:39:49,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-07 19:39:49,436 INFO L175 Difference]: Start difference. First operand has 308 places, 705 transitions, 18394 flow. Second operand 6 states and 65 transitions. [2024-11-07 19:39:49,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 726 transitions, 20187 flow [2024-11-07 19:39:49,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 726 transitions, 19159 flow, removed 150 selfloop flow, removed 16 redundant places. [2024-11-07 19:39:49,762 INFO L231 Difference]: Finished difference. Result has 296 places, 22 transitions, 341 flow [2024-11-07 19:39:49,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=17359, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=702, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=341, PETRI_PLACES=296, PETRI_TRANSITIONS=22} [2024-11-07 19:39:49,763 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 274 predicate places. [2024-11-07 19:39:49,764 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 22 transitions, 341 flow [2024-11-07 19:39:49,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:49,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:49,764 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:49,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-07 19:39:49,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:49,969 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:49,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:49,969 INFO L85 PathProgramCache]: Analyzing trace with hash -596838125, now seen corresponding path program 28 times [2024-11-07 19:39:49,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:49,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352923474] [2024-11-07 19:39:49,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:49,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:50,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:50,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352923474] [2024-11-07 19:39:50,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352923474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:50,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871637529] [2024-11-07 19:39:50,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:50,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:50,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:50,024 INFO L229 MonitoredProcess]: Starting monitored process 30 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 19:39:50,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-07 19:39:50,071 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:50,071 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:50,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:39:50,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:50,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:50,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871637529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:50,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:50,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2024-11-07 19:39:50,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299284853] [2024-11-07 19:39:50,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:50,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:39:50,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:39:50,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:39:50,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:50,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 22 transitions, 341 flow. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:50,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:50,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:50,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:50,368 INFO L124 PetriNetUnfolderBase]: 22/67 cut-off events. [2024-11-07 19:39:50,368 INFO L125 PetriNetUnfolderBase]: For 2821/2821 co-relation queries the response was YES. [2024-11-07 19:39:50,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 67 events. 22/67 cut-off events. For 2821/2821 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 0 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 632. Up to 23 conditions per place. [2024-11-07 19:39:50,369 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 19 selfloop transitions, 6 changer transitions 11/39 dead transitions. [2024-11-07 19:39:50,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 39 transitions, 605 flow [2024-11-07 19:39:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:39:50,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:39:50,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 99 transitions. [2024-11-07 19:39:50,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-07 19:39:50,370 INFO L175 Difference]: Start difference. First operand has 296 places, 22 transitions, 341 flow. Second operand 11 states and 99 transitions. [2024-11-07 19:39:50,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 39 transitions, 605 flow [2024-11-07 19:39:50,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 39 transitions, 243 flow, removed 61 selfloop flow, removed 90 redundant places. [2024-11-07 19:39:50,374 INFO L231 Difference]: Finished difference. Result has 95 places, 23 transitions, 133 flow [2024-11-07 19:39:50,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=133, PETRI_PLACES=95, PETRI_TRANSITIONS=23} [2024-11-07 19:39:50,375 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 73 predicate places. [2024-11-07 19:39:50,375 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 23 transitions, 133 flow [2024-11-07 19:39:50,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 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 19:39:50,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:50,375 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:50,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-07 19:39:50,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:50,580 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:39:50,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 792646754, now seen corresponding path program 29 times [2024-11-07 19:39:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:50,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093740140] [2024-11-07 19:39:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:50,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:50,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:50,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093740140] [2024-11-07 19:39:50,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093740140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:50,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236412088] [2024-11-07 19:39:50,692 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:50,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:50,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:50,694 INFO L229 MonitoredProcess]: Starting monitored process 31 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 19:39:50,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-07 19:39:50,738 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-07 19:39:50,738 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:50,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:39:50,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 19:39:50,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:50,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236412088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:50,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:50,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2024-11-07 19:39:50,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275398404] [2024-11-07 19:39:50,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:50,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:39:50,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:50,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:39:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:39:50,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 20 [2024-11-07 19:39:50,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 23 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:50,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:50,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 20 [2024-11-07 19:39:50,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:50,821 INFO L124 PetriNetUnfolderBase]: 15/47 cut-off events. [2024-11-07 19:39:50,821 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-07 19:39:50,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 47 events. 15/47 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 216. Up to 18 conditions per place. [2024-11-07 19:39:50,822 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2024-11-07 19:39:50,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 27 transitions, 209 flow [2024-11-07 19:39:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2024-11-07 19:39:50,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-07 19:39:50,823 INFO L175 Difference]: Start difference. First operand has 95 places, 23 transitions, 133 flow. Second operand 6 states and 56 transitions. [2024-11-07 19:39:50,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 27 transitions, 209 flow [2024-11-07 19:39:50,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 27 transitions, 187 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-07 19:39:50,823 INFO L231 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2024-11-07 19:39:50,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2024-11-07 19:39:50,824 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 64 predicate places. [2024-11-07 19:39:50,824 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2024-11-07 19:39:50,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:39:50,826 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-07 19:39:50,827 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-07 19:39:50,827 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-07 19:39:50,827 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-07 19:39:50,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-07 19:39:51,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-07 19:39:51,028 INFO L407 BasicCegarLoop]: Path program histogram: [29, 2, 2, 1] [2024-11-07 19:39:51,031 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:39:51,033 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:39:51,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:39:51 BasicIcfg [2024-11-07 19:39:51,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:39:51,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:39:51,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:39:51,039 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:39:51,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:20" (3/4) ... [2024-11-07 19:39:51,041 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 19:39:51,044 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 19:39:51,044 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 19:39:51,048 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-07 19:39:51,048 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-07 19:39:51,048 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-07 19:39:51,048 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 19:39:51,119 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 19:39:51,119 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 19:39:51,119 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:39:51,121 INFO L158 Benchmark]: Toolchain (without parser) took 30809.98ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 91.8MB in the beginning and 85.5MB in the end (delta: 6.3MB). Peak memory consumption was 308.5MB. Max. memory is 16.1GB. [2024-11-07 19:39:51,122 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:39:51,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.18ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 80.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:39:51,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.80ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:39:51,123 INFO L158 Benchmark]: Boogie Preprocessor took 44.67ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.4MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:39:51,123 INFO L158 Benchmark]: RCFGBuilder took 374.05ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 59.0MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:39:51,125 INFO L158 Benchmark]: TraceAbstraction took 30082.16ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 58.6MB in the beginning and 89.8MB in the end (delta: -31.2MB). Peak memory consumption was 266.5MB. Max. memory is 16.1GB. [2024-11-07 19:39:51,126 INFO L158 Benchmark]: Witness Printer took 80.58ms. Allocated memory is still 419.4MB. Free memory was 89.8MB in the beginning and 85.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:39:51,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.18ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 80.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.80ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.67ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.4MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 374.05ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 59.0MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30082.16ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 58.6MB in the beginning and 89.8MB in the end (delta: -31.2MB). Peak memory consumption was 266.5MB. Max. memory is 16.1GB. * Witness Printer took 80.58ms. Allocated memory is still 419.4MB. Free memory was 89.8MB in the beginning and 85.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 30.0s, OverallIterations: 34, TraceHistogramMax: 4, PathProgramHistogramMax: 29, EmptinessCheckTime: 0.0s, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1695 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1695 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 475 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5694 IncrementalHoareTripleChecker+Invalid, 6169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 475 mSolverCounterUnsat, 0 mSDtfsCounter, 5694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1307 GetRequests, 704 SyntacticMatches, 19 SemanticMatches, 584 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3989 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18685occurred in iteration=30, InterpolantAutomatonStates: 411, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 1125 NumberOfCodeBlocks, 1120 NumberOfCodeBlocksAsserted, 102 NumberOfCheckSat, 1458 ConstructedInterpolants, 0 QuantifiedInterpolants, 7309 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2940 ConjunctsInSsa, 235 ConjunctsInUnsatCore, 88 InterpolantComputations, 11 PerfectInterpolantSequences, 363/759 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 19:39:51,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE