./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-misc-2.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/parallel-misc-2.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', 'c558e00c0dd9b5f4cf40cba6e03e276a996696c71c282947f4c8d13390dc25bf'] 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/parallel-misc-2.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 c558e00c0dd9b5f4cf40cba6e03e276a996696c71c282947f4c8d13390dc25bf --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:31:54,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:31:54,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:31:54,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:31:54,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:31:54,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:31:54,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:31:54,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:31:54,429 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:31:54,429 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:31:54,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:31:54,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:31:54,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:31:54,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:31:54,431 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:31:54,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:31:54,431 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:31:54,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:31:54,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:31:54,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:31:54,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:31:54,433 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 -> c558e00c0dd9b5f4cf40cba6e03e276a996696c71c282947f4c8d13390dc25bf [2024-11-07 19:31:54,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:31:54,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:31:54,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:31:54,750 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:31:54,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:31:54,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2024-11-07 19:31:56,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:31:56,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:31:56,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2024-11-07 19:31:56,285 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/56f4e9778/93dabea83e1a4dfb921cb7a321858af0/FLAGd6119acc7 [2024-11-07 19:31:56,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/56f4e9778/93dabea83e1a4dfb921cb7a321858af0 [2024-11-07 19:31:56,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:31:56,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:31:56,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:31:56,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:31:56,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:31:56,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cef01d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56, skipping insertion in model container [2024-11-07 19:31:56,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:31:56,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:31:56,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:31:56,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:31:56,535 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:31:56,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56 WrapperNode [2024-11-07 19:31:56,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:31:56,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:31:56,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:31:56,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:31:56,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,570 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2024-11-07 19:31:56,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:31:56,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:31:56,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:31:56,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:31:56,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,605 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 19:31:56,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:31:56,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:31:56,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:31:56,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:31:56,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (1/1) ... [2024-11-07 19:31:56,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:31:56,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:56,666 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 19:31:56,669 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 19:31:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:31:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:31:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:31:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:31:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:31:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:31:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:31:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:31:56,696 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 19:31:56,788 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:31:56,792 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:31:56,968 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:31:56,968 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:31:57,101 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:31:57,102 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:31:57,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:31:57 BoogieIcfgContainer [2024-11-07 19:31:57,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:31:57,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:31:57,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:31:57,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:31:57,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:31:56" (1/3) ... [2024-11-07 19:31:57,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107d1acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:31:57, skipping insertion in model container [2024-11-07 19:31:57,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:31:56" (2/3) ... [2024-11-07 19:31:57,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107d1acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:31:57, skipping insertion in model container [2024-11-07 19:31:57,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:31:57" (3/3) ... [2024-11-07 19:31:57,124 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2024-11-07 19:31:57,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:31:57,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:31:57,138 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:31:57,187 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:31:57,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 34 transitions, 82 flow [2024-11-07 19:31:57,255 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2024-11-07 19:31:57,257 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:31:57,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 4/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-11-07 19:31:57,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 34 transitions, 82 flow [2024-11-07 19:31:57,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 31 transitions, 74 flow [2024-11-07 19:31:57,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:31:57,286 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;@4c27f4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:31:57,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:31:57,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:31:57,301 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2024-11-07 19:31:57,301 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:31:57,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:57,302 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:57,302 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 19:31:57,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1272023409, now seen corresponding path program 1 times [2024-11-07 19:31:57,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:57,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370723825] [2024-11-07 19:31:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:57,612 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 19:31:57,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:57,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370723825] [2024-11-07 19:31:57,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370723825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:31:57,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:31:57,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:31:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918020565] [2024-11-07 19:31:57,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:31:57,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:31:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:57,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:31:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:31:57,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:31:57,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 19:31:57,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:57,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:31:57,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:57,802 INFO L124 PetriNetUnfolderBase]: 146/286 cut-off events. [2024-11-07 19:31:57,802 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-07 19:31:57,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 286 events. 146/286 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1116 event pairs, 12 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 458. Up to 186 conditions per place. [2024-11-07 19:31:57,807 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 21 selfloop transitions, 7 changer transitions 1/40 dead transitions. [2024-11-07 19:31:57,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 159 flow [2024-11-07 19:31:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:31:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:31:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-07 19:31:57,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-07 19:31:57,822 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 74 flow. Second operand 3 states and 73 transitions. [2024-11-07 19:31:57,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 159 flow [2024-11-07 19:31:57,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 40 transitions, 145 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:31:57,828 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 101 flow [2024-11-07 19:31:57,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2024-11-07 19:31:57,833 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2024-11-07 19:31:57,834 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 101 flow [2024-11-07 19:31:57,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 19:31:57,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:57,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:57,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:31:57,834 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 19:31:57,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash 886991089, now seen corresponding path program 1 times [2024-11-07 19:31:57,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:57,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984765033] [2024-11-07 19:31:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:58,009 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 19:31:58,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:58,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984765033] [2024-11-07 19:31:58,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984765033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:31:58,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:31:58,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:31:58,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553159214] [2024-11-07 19:31:58,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:31:58,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:31:58,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:31:58,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:31:58,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:31:58,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 19:31:58,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:58,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:31:58,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:58,222 INFO L124 PetriNetUnfolderBase]: 191/376 cut-off events. [2024-11-07 19:31:58,222 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-07 19:31:58,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 376 events. 191/376 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1705 event pairs, 20 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 276. Up to 143 conditions per place. [2024-11-07 19:31:58,228 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 36 selfloop transitions, 10 changer transitions 5/65 dead transitions. [2024-11-07 19:31:58,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 65 transitions, 290 flow [2024-11-07 19:31:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:31:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:31:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2024-11-07 19:31:58,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7235294117647059 [2024-11-07 19:31:58,232 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 101 flow. Second operand 5 states and 123 transitions. [2024-11-07 19:31:58,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 65 transitions, 290 flow [2024-11-07 19:31:58,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 65 transitions, 281 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:31:58,236 INFO L231 Difference]: Finished difference. Result has 37 places, 40 transitions, 155 flow [2024-11-07 19:31:58,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=37, PETRI_TRANSITIONS=40} [2024-11-07 19:31:58,236 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2024-11-07 19:31:58,237 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 155 flow [2024-11-07 19:31:58,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 19:31:58,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:58,237 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:58,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:31:58,237 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 19:31:58,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1876960269, now seen corresponding path program 2 times [2024-11-07 19:31:58,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:58,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132753626] [2024-11-07 19:31:58,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:58,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:58,389 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 19:31:58,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:58,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132753626] [2024-11-07 19:31:58,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132753626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:31:58,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:31:58,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:31:58,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410201949] [2024-11-07 19:31:58,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:31:58,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:31:58,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:31:58,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:31:58,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:31:58,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 19:31:58,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:58,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:31:58,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:58,562 INFO L124 PetriNetUnfolderBase]: 185/391 cut-off events. [2024-11-07 19:31:58,563 INFO L125 PetriNetUnfolderBase]: For 233/237 co-relation queries the response was YES. [2024-11-07 19:31:58,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 391 events. 185/391 cut-off events. For 233/237 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1844 event pairs, 12 based on Foata normal form. 12/373 useless extension candidates. Maximal degree in co-relation 345. Up to 88 conditions per place. [2024-11-07 19:31:58,567 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 35 selfloop transitions, 12 changer transitions 4/65 dead transitions. [2024-11-07 19:31:58,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 65 transitions, 348 flow [2024-11-07 19:31:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:31:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:31:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-07 19:31:58,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-11-07 19:31:58,571 INFO L175 Difference]: Start difference. First operand has 37 places, 40 transitions, 155 flow. Second operand 5 states and 120 transitions. [2024-11-07 19:31:58,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 65 transitions, 348 flow [2024-11-07 19:31:58,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 65 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:31:58,575 INFO L231 Difference]: Finished difference. Result has 45 places, 45 transitions, 241 flow [2024-11-07 19:31:58,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=45, PETRI_TRANSITIONS=45} [2024-11-07 19:31:58,576 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 11 predicate places. [2024-11-07 19:31:58,576 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 45 transitions, 241 flow [2024-11-07 19:31:58,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 19:31:58,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:58,576 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:58,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:31:58,577 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 19:31:58,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:58,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1246876582, now seen corresponding path program 1 times [2024-11-07 19:31:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:58,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163852788] [2024-11-07 19:31:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:58,690 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 19:31:58,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:58,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163852788] [2024-11-07 19:31:58,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163852788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:31:58,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:31:58,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:31:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619504182] [2024-11-07 19:31:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:31:58,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:31:58,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:58,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:31:58,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:31:58,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:31:58,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 45 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 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 19:31:58,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:58,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:31:58,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:58,846 INFO L124 PetriNetUnfolderBase]: 182/379 cut-off events. [2024-11-07 19:31:58,846 INFO L125 PetriNetUnfolderBase]: For 590/593 co-relation queries the response was YES. [2024-11-07 19:31:58,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 379 events. 182/379 cut-off events. For 590/593 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1803 event pairs, 17 based on Foata normal form. 4/350 useless extension candidates. Maximal degree in co-relation 572. Up to 163 conditions per place. [2024-11-07 19:31:58,856 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 41 selfloop transitions, 9 changer transitions 2/66 dead transitions. [2024-11-07 19:31:58,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 436 flow [2024-11-07 19:31:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:31:58,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:31:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-11-07 19:31:58,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882352941176471 [2024-11-07 19:31:58,860 INFO L175 Difference]: Start difference. First operand has 45 places, 45 transitions, 241 flow. Second operand 5 states and 117 transitions. [2024-11-07 19:31:58,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 436 flow [2024-11-07 19:31:58,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 66 transitions, 432 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-07 19:31:58,871 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 292 flow [2024-11-07 19:31:58,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-07 19:31:58,872 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2024-11-07 19:31:58,872 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 292 flow [2024-11-07 19:31:58,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 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 19:31:58,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:58,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:58,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:31:58,872 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 19:31:58,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:58,873 INFO L85 PathProgramCache]: Analyzing trace with hash -565039444, now seen corresponding path program 2 times [2024-11-07 19:31:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:58,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282372806] [2024-11-07 19:31:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:58,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:58,981 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 19:31:58,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:58,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282372806] [2024-11-07 19:31:58,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282372806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:31:58,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:31:58,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:31:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688385658] [2024-11-07 19:31:58,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:31:58,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:31:58,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:58,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:31:58,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:31:58,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:31:58,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 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 19:31:58,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:58,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:31:58,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:59,111 INFO L124 PetriNetUnfolderBase]: 168/379 cut-off events. [2024-11-07 19:31:59,112 INFO L125 PetriNetUnfolderBase]: For 801/805 co-relation queries the response was YES. [2024-11-07 19:31:59,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 379 events. 168/379 cut-off events. For 801/805 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1704 event pairs, 6 based on Foata normal form. 21/366 useless extension candidates. Maximal degree in co-relation 751. Up to 99 conditions per place. [2024-11-07 19:31:59,118 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 43 selfloop transitions, 12 changer transitions 1/70 dead transitions. [2024-11-07 19:31:59,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 70 transitions, 512 flow [2024-11-07 19:31:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:31:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:31:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2024-11-07 19:31:59,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6941176470588235 [2024-11-07 19:31:59,121 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 292 flow. Second operand 5 states and 118 transitions. [2024-11-07 19:31:59,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 70 transitions, 512 flow [2024-11-07 19:31:59,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 496 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-07 19:31:59,128 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 355 flow [2024-11-07 19:31:59,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-11-07 19:31:59,129 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 23 predicate places. [2024-11-07 19:31:59,129 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 355 flow [2024-11-07 19:31:59,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 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 19:31:59,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:59,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:59,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:31:59,131 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 19:31:59,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1009803054, now seen corresponding path program 1 times [2024-11-07 19:31:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:59,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747362632] [2024-11-07 19:31:59,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:59,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:59,423 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 19:31:59,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747362632] [2024-11-07 19:31:59,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747362632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557688696] [2024-11-07 19:31:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:59,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:59,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:59,430 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 19:31:59,432 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 19:31:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:59,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:31:59,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:59,778 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 19:31:59,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:00,073 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 19:32:00,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557688696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:00,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:00,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-07 19:32:00,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848462067] [2024-11-07 19:32:00,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:00,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:32:00,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:00,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:32:00,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:32:00,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-07 19:32:00,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 355 flow. Second operand has 12 states, 12 states have (on average 15.833333333333334) internal successors, (190), 12 states have internal predecessors, (190), 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 19:32:00,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:00,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-07 19:32:00,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:00,824 INFO L124 PetriNetUnfolderBase]: 459/907 cut-off events. [2024-11-07 19:32:00,824 INFO L125 PetriNetUnfolderBase]: For 2611/2611 co-relation queries the response was YES. [2024-11-07 19:32:00,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3200 conditions, 907 events. 459/907 cut-off events. For 2611/2611 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4461 event pairs, 4 based on Foata normal form. 46/884 useless extension candidates. Maximal degree in co-relation 1278. Up to 254 conditions per place. [2024-11-07 19:32:00,833 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 105 selfloop transitions, 51 changer transitions 0/165 dead transitions. [2024-11-07 19:32:00,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 165 transitions, 1356 flow [2024-11-07 19:32:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:32:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:32:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 374 transitions. [2024-11-07 19:32:00,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2024-11-07 19:32:00,836 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 355 flow. Second operand 19 states and 374 transitions. [2024-11-07 19:32:00,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 165 transitions, 1356 flow [2024-11-07 19:32:00,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 165 transitions, 1317 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-07 19:32:00,849 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 848 flow [2024-11-07 19:32:00,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=848, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2024-11-07 19:32:00,850 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2024-11-07 19:32:00,850 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 848 flow [2024-11-07 19:32:00,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.833333333333334) internal successors, (190), 12 states have internal predecessors, (190), 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 19:32:00,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:00,851 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:00,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 19:32:01,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:01,056 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 19:32:01,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:01,057 INFO L85 PathProgramCache]: Analyzing trace with hash 971635335, now seen corresponding path program 2 times [2024-11-07 19:32:01,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:01,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024872152] [2024-11-07 19:32:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:01,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:01,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:01,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024872152] [2024-11-07 19:32:01,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024872152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:32:01,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:32:01,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:32:01,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790064614] [2024-11-07 19:32:01,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:32:01,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:32:01,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:01,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:32:01,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:32:01,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:32:01,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 848 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 19:32:01,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:01,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:32:01,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:01,476 INFO L124 PetriNetUnfolderBase]: 594/1378 cut-off events. [2024-11-07 19:32:01,476 INFO L125 PetriNetUnfolderBase]: For 7668/7782 co-relation queries the response was YES. [2024-11-07 19:32:01,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5690 conditions, 1378 events. 594/1378 cut-off events. For 7668/7782 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8664 event pairs, 145 based on Foata normal form. 31/1232 useless extension candidates. Maximal degree in co-relation 4991. Up to 305 conditions per place. [2024-11-07 19:32:01,497 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 108 selfloop transitions, 21 changer transitions 0/161 dead transitions. [2024-11-07 19:32:01,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 161 transitions, 1994 flow [2024-11-07 19:32:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:32:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:32:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-11-07 19:32:01,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-07 19:32:01,500 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 848 flow. Second operand 4 states and 102 transitions. [2024-11-07 19:32:01,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 161 transitions, 1994 flow [2024-11-07 19:32:01,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 161 transitions, 1855 flow, removed 61 selfloop flow, removed 4 redundant places. [2024-11-07 19:32:01,531 INFO L231 Difference]: Finished difference. Result has 86 places, 102 transitions, 1108 flow [2024-11-07 19:32:01,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1108, PETRI_PLACES=86, PETRI_TRANSITIONS=102} [2024-11-07 19:32:01,533 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 52 predicate places. [2024-11-07 19:32:01,533 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 102 transitions, 1108 flow [2024-11-07 19:32:01,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 19:32:01,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:01,534 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:01,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:32:01,534 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 19:32:01,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2045098740, now seen corresponding path program 1 times [2024-11-07 19:32:01,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:01,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526448111] [2024-11-07 19:32:01,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:01,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:01,690 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:01,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:01,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526448111] [2024-11-07 19:32:01,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526448111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:32:01,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:32:01,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:32:01,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687945339] [2024-11-07 19:32:01,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:32:01,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:32:01,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:01,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:32:01,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:32:01,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:32:01,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 102 transitions, 1108 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 19:32:01,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:01,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:32:01,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:02,106 INFO L124 PetriNetUnfolderBase]: 1186/2522 cut-off events. [2024-11-07 19:32:02,107 INFO L125 PetriNetUnfolderBase]: For 14664/14697 co-relation queries the response was YES. [2024-11-07 19:32:02,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10892 conditions, 2522 events. 1186/2522 cut-off events. For 14664/14697 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 18094 event pairs, 191 based on Foata normal form. 3/2385 useless extension candidates. Maximal degree in co-relation 9524. Up to 863 conditions per place. [2024-11-07 19:32:02,133 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 107 selfloop transitions, 38 changer transitions 0/178 dead transitions. [2024-11-07 19:32:02,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 178 transitions, 2296 flow [2024-11-07 19:32:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:32:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:32:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-07 19:32:02,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7132352941176471 [2024-11-07 19:32:02,134 INFO L175 Difference]: Start difference. First operand has 86 places, 102 transitions, 1108 flow. Second operand 4 states and 97 transitions. [2024-11-07 19:32:02,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 178 transitions, 2296 flow [2024-11-07 19:32:02,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 178 transitions, 2283 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 19:32:02,172 INFO L231 Difference]: Finished difference. Result has 91 places, 121 transitions, 1468 flow [2024-11-07 19:32:02,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1468, PETRI_PLACES=91, PETRI_TRANSITIONS=121} [2024-11-07 19:32:02,173 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 57 predicate places. [2024-11-07 19:32:02,173 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 121 transitions, 1468 flow [2024-11-07 19:32:02,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 19:32:02,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:02,174 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:02,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 19:32:02,174 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 19:32:02,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1374390031, now seen corresponding path program 1 times [2024-11-07 19:32:02,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:02,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81438843] [2024-11-07 19:32:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 19:32:02,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:02,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81438843] [2024-11-07 19:32:02,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81438843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:32:02,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:32:02,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:32:02,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213539819] [2024-11-07 19:32:02,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:32:02,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:32:02,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:02,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:32:02,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:32:02,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:32:02,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 121 transitions, 1468 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 19:32:02,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:02,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:32:02,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:02,665 INFO L124 PetriNetUnfolderBase]: 703/1675 cut-off events. [2024-11-07 19:32:02,665 INFO L125 PetriNetUnfolderBase]: For 15037/15235 co-relation queries the response was YES. [2024-11-07 19:32:02,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8484 conditions, 1675 events. 703/1675 cut-off events. For 15037/15235 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 11637 event pairs, 147 based on Foata normal form. 74/1675 useless extension candidates. Maximal degree in co-relation 7500. Up to 459 conditions per place. [2024-11-07 19:32:02,685 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 121 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2024-11-07 19:32:02,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 176 transitions, 2454 flow [2024-11-07 19:32:02,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:32:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:32:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-07 19:32:02,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7132352941176471 [2024-11-07 19:32:02,687 INFO L175 Difference]: Start difference. First operand has 91 places, 121 transitions, 1468 flow. Second operand 4 states and 97 transitions. [2024-11-07 19:32:02,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 176 transitions, 2454 flow [2024-11-07 19:32:02,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 176 transitions, 2454 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:32:02,720 INFO L231 Difference]: Finished difference. Result has 96 places, 116 transitions, 1459 flow [2024-11-07 19:32:02,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1386, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1459, PETRI_PLACES=96, PETRI_TRANSITIONS=116} [2024-11-07 19:32:02,721 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 62 predicate places. [2024-11-07 19:32:02,721 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 116 transitions, 1459 flow [2024-11-07 19:32:02,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 19:32:02,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:02,721 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:02,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 19:32:02,721 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 19:32:02,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1004967722, now seen corresponding path program 1 times [2024-11-07 19:32:02,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:02,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769904490] [2024-11-07 19:32:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:02,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:02,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769904490] [2024-11-07 19:32:02,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769904490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:02,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963616338] [2024-11-07 19:32:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:02,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:02,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:02,935 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 19:32:02,937 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 19:32:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:03,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:32:03,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:03,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:03,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963616338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:03,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:03,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-07 19:32:03,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919384525] [2024-11-07 19:32:03,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:03,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:32:03,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:03,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:32:03,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:32:03,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:32:03,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 116 transitions, 1459 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 19:32:03,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:03,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:32:03,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:03,771 INFO L124 PetriNetUnfolderBase]: 1428/3228 cut-off events. [2024-11-07 19:32:03,771 INFO L125 PetriNetUnfolderBase]: For 27380/27482 co-relation queries the response was YES. [2024-11-07 19:32:03,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16488 conditions, 3228 events. 1428/3228 cut-off events. For 27380/27482 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 23968 event pairs, 214 based on Foata normal form. 16/3135 useless extension candidates. Maximal degree in co-relation 14650. Up to 1287 conditions per place. [2024-11-07 19:32:03,808 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 210 selfloop transitions, 19 changer transitions 1/263 dead transitions. [2024-11-07 19:32:03,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 263 transitions, 3954 flow [2024-11-07 19:32:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:32:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:32:03,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-07 19:32:03,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7529411764705882 [2024-11-07 19:32:03,811 INFO L175 Difference]: Start difference. First operand has 96 places, 116 transitions, 1459 flow. Second operand 5 states and 128 transitions. [2024-11-07 19:32:03,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 263 transitions, 3954 flow [2024-11-07 19:32:03,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 263 transitions, 3954 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:32:03,870 INFO L231 Difference]: Finished difference. Result has 101 places, 128 transitions, 1568 flow [2024-11-07 19:32:03,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1568, PETRI_PLACES=101, PETRI_TRANSITIONS=128} [2024-11-07 19:32:03,871 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 67 predicate places. [2024-11-07 19:32:03,872 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 128 transitions, 1568 flow [2024-11-07 19:32:03,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 19:32:03,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:03,873 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:03,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 19:32:04,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:04,074 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 19:32:04,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:04,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2111936966, now seen corresponding path program 2 times [2024-11-07 19:32:04,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:04,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059145796] [2024-11-07 19:32:04,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:04,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:04,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:04,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059145796] [2024-11-07 19:32:04,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059145796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:04,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939858731] [2024-11-07 19:32:04,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:32:04,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:04,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:04,328 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 19:32:04,330 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 19:32:04,397 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:32:04,397 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:04,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:32:04,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:04,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:32:04,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939858731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:04,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:04,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-07 19:32:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121964652] [2024-11-07 19:32:04,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:04,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:32:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:32:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:32:04,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:32:04,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 128 transitions, 1568 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:04,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:04,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:32:04,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:05,450 INFO L124 PetriNetUnfolderBase]: 2078/4722 cut-off events. [2024-11-07 19:32:05,450 INFO L125 PetriNetUnfolderBase]: For 41983/42199 co-relation queries the response was YES. [2024-11-07 19:32:05,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25244 conditions, 4722 events. 2078/4722 cut-off events. For 41983/42199 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 38236 event pairs, 287 based on Foata normal form. 28/4633 useless extension candidates. Maximal degree in co-relation 22167. Up to 1212 conditions per place. [2024-11-07 19:32:05,494 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 260 selfloop transitions, 31 changer transitions 1/325 dead transitions. [2024-11-07 19:32:05,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 325 transitions, 4974 flow [2024-11-07 19:32:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:32:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:32:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-11-07 19:32:05,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-07 19:32:05,496 INFO L175 Difference]: Start difference. First operand has 101 places, 128 transitions, 1568 flow. Second operand 6 states and 153 transitions. [2024-11-07 19:32:05,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 325 transitions, 4974 flow [2024-11-07 19:32:05,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 325 transitions, 4926 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-11-07 19:32:05,593 INFO L231 Difference]: Finished difference. Result has 107 places, 140 transitions, 1683 flow [2024-11-07 19:32:05,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1544, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1683, PETRI_PLACES=107, PETRI_TRANSITIONS=140} [2024-11-07 19:32:05,594 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 73 predicate places. [2024-11-07 19:32:05,594 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 140 transitions, 1683 flow [2024-11-07 19:32:05,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:05,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:05,594 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:05,610 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 19:32:05,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:05,799 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 19:32:05,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:05,799 INFO L85 PathProgramCache]: Analyzing trace with hash 710870470, now seen corresponding path program 3 times [2024-11-07 19:32:05,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:05,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376994655] [2024-11-07 19:32:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:06,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:06,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376994655] [2024-11-07 19:32:06,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376994655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:06,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446595361] [2024-11-07 19:32:06,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:32:06,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:06,025 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 19:32:06,026 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 19:32:06,092 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-07 19:32:06,092 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:06,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:32:06,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:06,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:06,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:06,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:06,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446595361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:06,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:06,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-07 19:32:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494930111] [2024-11-07 19:32:06,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:06,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:32:06,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:06,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:32:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:32:06,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:32:06,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 140 transitions, 1683 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:06,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:06,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:32:06,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:07,299 INFO L124 PetriNetUnfolderBase]: 2631/6048 cut-off events. [2024-11-07 19:32:07,299 INFO L125 PetriNetUnfolderBase]: For 53969/54156 co-relation queries the response was YES. [2024-11-07 19:32:07,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32632 conditions, 6048 events. 2631/6048 cut-off events. For 53969/54156 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 51814 event pairs, 365 based on Foata normal form. 29/5976 useless extension candidates. Maximal degree in co-relation 28251. Up to 3109 conditions per place. [2024-11-07 19:32:07,357 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 254 selfloop transitions, 25 changer transitions 1/313 dead transitions. [2024-11-07 19:32:07,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 313 transitions, 4642 flow [2024-11-07 19:32:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:32:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:32:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-11-07 19:32:07,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7401960784313726 [2024-11-07 19:32:07,359 INFO L175 Difference]: Start difference. First operand has 107 places, 140 transitions, 1683 flow. Second operand 6 states and 151 transitions. [2024-11-07 19:32:07,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 313 transitions, 4642 flow [2024-11-07 19:32:07,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 313 transitions, 4579 flow, removed 23 selfloop flow, removed 1 redundant places. [2024-11-07 19:32:07,469 INFO L231 Difference]: Finished difference. Result has 113 places, 157 transitions, 1840 flow [2024-11-07 19:32:07,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1654, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1840, PETRI_PLACES=113, PETRI_TRANSITIONS=157} [2024-11-07 19:32:07,469 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 79 predicate places. [2024-11-07 19:32:07,469 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 157 transitions, 1840 flow [2024-11-07 19:32:07,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:07,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:07,470 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:07,483 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 19:32:07,673 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,SelfDestructingSolverStorable11 [2024-11-07 19:32:07,673 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 19:32:07,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:07,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1179614854, now seen corresponding path program 4 times [2024-11-07 19:32:07,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:07,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138113925] [2024-11-07 19:32:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:07,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:07,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:07,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138113925] [2024-11-07 19:32:07,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138113925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:07,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189654281] [2024-11-07 19:32:07,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:32:07,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:07,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:07,864 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 19:32:07,866 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 19:32:07,927 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:32:07,927 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:07,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:32:07,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:08,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:08,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189654281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:08,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:08,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-07 19:32:08,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461422529] [2024-11-07 19:32:08,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:08,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:32:08,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:08,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:32:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:32:08,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:32:08,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 157 transitions, 1840 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:08,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:08,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:32:08,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:09,162 INFO L124 PetriNetUnfolderBase]: 3133/7170 cut-off events. [2024-11-07 19:32:09,162 INFO L125 PetriNetUnfolderBase]: For 65085/65364 co-relation queries the response was YES. [2024-11-07 19:32:09,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38757 conditions, 7170 events. 3133/7170 cut-off events. For 65085/65364 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 63205 event pairs, 419 based on Foata normal form. 52/7106 useless extension candidates. Maximal degree in co-relation 33770. Up to 3538 conditions per place. [2024-11-07 19:32:09,218 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 267 selfloop transitions, 31 changer transitions 1/332 dead transitions. [2024-11-07 19:32:09,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 332 transitions, 4854 flow [2024-11-07 19:32:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:32:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:32:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-11-07 19:32:09,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7401960784313726 [2024-11-07 19:32:09,220 INFO L175 Difference]: Start difference. First operand has 113 places, 157 transitions, 1840 flow. Second operand 6 states and 151 transitions. [2024-11-07 19:32:09,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 332 transitions, 4854 flow [2024-11-07 19:32:09,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 332 transitions, 4844 flow, removed 5 selfloop flow, removed 0 redundant places. [2024-11-07 19:32:09,367 INFO L231 Difference]: Finished difference. Result has 121 places, 176 transitions, 2097 flow [2024-11-07 19:32:09,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1830, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2097, PETRI_PLACES=121, PETRI_TRANSITIONS=176} [2024-11-07 19:32:09,367 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 87 predicate places. [2024-11-07 19:32:09,367 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 176 transitions, 2097 flow [2024-11-07 19:32:09,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:09,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:09,368 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:09,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-07 19:32:09,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-07 19:32:09,568 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 19:32:09,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash 752687008, now seen corresponding path program 5 times [2024-11-07 19:32:09,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:09,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440826824] [2024-11-07 19:32:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:09,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:09,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440826824] [2024-11-07 19:32:09,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440826824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256025841] [2024-11-07 19:32:09,781 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:32:09,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:09,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:09,785 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 19:32:09,787 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 19:32:09,872 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-07 19:32:09,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:09,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:32:09,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:09,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:10,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256025841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:10,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:10,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-07 19:32:10,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040657090] [2024-11-07 19:32:10,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:10,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:32:10,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:10,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:32:10,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:32:10,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-07 19:32:10,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 176 transitions, 2097 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:10,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:10,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-07 19:32:10,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:11,145 INFO L124 PetriNetUnfolderBase]: 3392/7693 cut-off events. [2024-11-07 19:32:11,146 INFO L125 PetriNetUnfolderBase]: For 73882/74234 co-relation queries the response was YES. [2024-11-07 19:32:11,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42856 conditions, 7693 events. 3392/7693 cut-off events. For 73882/74234 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 68297 event pairs, 413 based on Foata normal form. 74/7610 useless extension candidates. Maximal degree in co-relation 37677. Up to 2957 conditions per place. [2024-11-07 19:32:11,213 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 290 selfloop transitions, 47 changer transitions 1/371 dead transitions. [2024-11-07 19:32:11,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 371 transitions, 5607 flow [2024-11-07 19:32:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:32:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:32:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-11-07 19:32:11,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-07 19:32:11,215 INFO L175 Difference]: Start difference. First operand has 121 places, 176 transitions, 2097 flow. Second operand 6 states and 153 transitions. [2024-11-07 19:32:11,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 371 transitions, 5607 flow [2024-11-07 19:32:11,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 371 transitions, 5591 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-11-07 19:32:11,421 INFO L231 Difference]: Finished difference. Result has 129 places, 186 transitions, 2325 flow [2024-11-07 19:32:11,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2081, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2325, PETRI_PLACES=129, PETRI_TRANSITIONS=186} [2024-11-07 19:32:11,422 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 95 predicate places. [2024-11-07 19:32:11,422 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 186 transitions, 2325 flow [2024-11-07 19:32:11,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:32:11,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:11,422 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:11,439 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 19:32:11,626 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,SelfDestructingSolverStorable13 [2024-11-07 19:32:11,627 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 19:32:11,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1657100338, now seen corresponding path program 6 times [2024-11-07 19:32:11,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:11,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667150379] [2024-11-07 19:32:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:11,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:12,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:12,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667150379] [2024-11-07 19:32:12,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667150379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:12,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142032062] [2024-11-07 19:32:12,026 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:32:12,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:12,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:12,029 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 19:32:12,030 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 19:32:12,141 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-07 19:32:12,141 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:12,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:32:12,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:12,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:12,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142032062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:12,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:12,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2024-11-07 19:32:12,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212456747] [2024-11-07 19:32:12,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:12,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:32:12,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:12,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:32:12,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:32:12,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-07 19:32:12,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 186 transitions, 2325 flow. Second operand has 19 states, 19 states have (on average 18.105263157894736) internal successors, (344), 19 states have internal predecessors, (344), 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 19:32:12,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:12,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-07 19:32:12,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:22,960 INFO L124 PetriNetUnfolderBase]: 7103/15946 cut-off events. [2024-11-07 19:32:22,961 INFO L125 PetriNetUnfolderBase]: For 177255/178541 co-relation queries the response was YES. [2024-11-07 19:32:23,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90565 conditions, 15946 events. 7103/15946 cut-off events. For 177255/178541 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 152752 event pairs, 32 based on Foata normal form. 1164/17084 useless extension candidates. Maximal degree in co-relation 81574. Up to 2941 conditions per place. [2024-11-07 19:32:23,130 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 640 selfloop transitions, 207 changer transitions 0/899 dead transitions. [2024-11-07 19:32:23,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 899 transitions, 11949 flow [2024-11-07 19:32:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-07 19:32:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-07 19:32:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 738 transitions. [2024-11-07 19:32:23,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6577540106951871 [2024-11-07 19:32:23,133 INFO L175 Difference]: Start difference. First operand has 129 places, 186 transitions, 2325 flow. Second operand 33 states and 738 transitions. [2024-11-07 19:32:23,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 899 transitions, 11949 flow [2024-11-07 19:32:23,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 899 transitions, 11813 flow, removed 51 selfloop flow, removed 1 redundant places. [2024-11-07 19:32:23,471 INFO L231 Difference]: Finished difference. Result has 178 places, 356 transitions, 5879 flow [2024-11-07 19:32:23,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2297, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=5879, PETRI_PLACES=178, PETRI_TRANSITIONS=356} [2024-11-07 19:32:23,472 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 144 predicate places. [2024-11-07 19:32:23,472 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 356 transitions, 5879 flow [2024-11-07 19:32:23,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.105263157894736) internal successors, (344), 19 states have internal predecessors, (344), 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 19:32:23,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:23,472 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:23,485 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 19:32:23,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:23,673 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 19:32:23,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:23,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1863072581, now seen corresponding path program 7 times [2024-11-07 19:32:23,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:23,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102180077] [2024-11-07 19:32:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:23,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:23,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:23,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102180077] [2024-11-07 19:32:23,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102180077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:23,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915096467] [2024-11-07 19:32:23,992 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:32:23,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:23,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:23,995 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 19:32:23,997 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 19:32:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:24,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:32:24,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:24,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:25,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915096467] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:25,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:25,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2024-11-07 19:32:25,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734225928] [2024-11-07 19:32:25,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:25,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:32:25,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:32:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:32:25,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-07 19:32:25,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 356 transitions, 5879 flow. Second operand has 21 states, 21 states have (on average 15.428571428571429) internal successors, (324), 21 states have internal predecessors, (324), 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 19:32:25,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:25,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-07 19:32:25,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:38,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:32:42,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:32:47,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:32:51,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:32:55,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:32:59,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:33:03,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:33:07,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:33:18,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:33:28,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []