./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp2x9.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/bench-exp2x9.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', 'af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6'] 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/bench-exp2x9.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 af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:27:31,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:27:31,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:27:31,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:27:31,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:27:31,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:27:31,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:27:31,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:27:31,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:27:31,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:27:31,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:27:31,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:27:31,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:27:31,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:27:31,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:27:31,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:27:31,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:27:31,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:27:31,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:27:31,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:27:31,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:27:31,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:27:31,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:27:31,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:27:31,176 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 -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2024-11-07 19:27:31,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:27:31,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:27:31,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:27:31,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:27:31,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:27:31,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-11-07 19:27:32,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:27:33,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:27:33,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-11-07 19:27:33,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64c1d67b9/855a0f3c3a9c4e8c9db1d906e4ebae34/FLAG883f6820b [2024-11-07 19:27:33,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64c1d67b9/855a0f3c3a9c4e8c9db1d906e4ebae34 [2024-11-07 19:27:33,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:27:33,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:27:33,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:27:33,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:27:33,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:27:33,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6b99c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33, skipping insertion in model container [2024-11-07 19:27:33,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:27:33,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:27:33,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:27:33,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:27:33,438 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:27:33,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33 WrapperNode [2024-11-07 19:27:33,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:27:33,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:27:33,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:27:33,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:27:33,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,451 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,471 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-07 19:27:33,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:27:33,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:27:33,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:27:33,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:27:33,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,501 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 19:27:33,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:27:33,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:27:33,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:27:33,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:27:33,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (1/1) ... [2024-11-07 19:27:33,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:27:33,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:27:33,564 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 19:27:33,568 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 19:27:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:27:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:27:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:27:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:27:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:27:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 19:27:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 19:27:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-07 19:27:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-07 19:27:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:27:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:27:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:27:33,593 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 19:27:33,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:27:33,683 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:27:33,915 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:27:33,915 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:27:34,069 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:27:34,069 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 19:27:34,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:27:34 BoogieIcfgContainer [2024-11-07 19:27:34,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:27:34,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:27:34,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:27:34,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:27:34,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:27:33" (1/3) ... [2024-11-07 19:27:34,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b98a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:27:34, skipping insertion in model container [2024-11-07 19:27:34,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:27:33" (2/3) ... [2024-11-07 19:27:34,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b98a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:27:34, skipping insertion in model container [2024-11-07 19:27:34,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:27:34" (3/3) ... [2024-11-07 19:27:34,080 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-11-07 19:27:34,094 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:27:34,095 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:27:34,095 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:27:34,163 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 19:27:34,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 96 flow [2024-11-07 19:27:34,241 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-07 19:27:34,245 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 19:27:34,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 30 events. 4/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-07 19:27:34,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 34 transitions, 96 flow [2024-11-07 19:27:34,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2024-11-07 19:27:34,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:27:34,275 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;@75b052a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:27:34,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-07 19:27:34,287 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:27:34,289 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-07 19:27:34,289 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 19:27:34,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:34,290 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] [2024-11-07 19:27:34,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:34,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1582233445, now seen corresponding path program 1 times [2024-11-07 19:27:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:34,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366142831] [2024-11-07 19:27:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:34,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:34,782 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 19:27:34,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:34,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366142831] [2024-11-07 19:27:34,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366142831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:34,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:34,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:27:34,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534983572] [2024-11-07 19:27:34,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:34,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:27:34,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:34,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:27:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:27:34,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:34,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 19:27:34,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:34,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:34,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:35,204 INFO L124 PetriNetUnfolderBase]: 1367/1732 cut-off events. [2024-11-07 19:27:35,205 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-07 19:27:35,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 1732 events. 1367/1732 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5574 event pairs, 123 based on Foata normal form. 2/998 useless extension candidates. Maximal degree in co-relation 3091. Up to 1541 conditions per place. [2024-11-07 19:27:35,228 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 35 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-11-07 19:27:35,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 219 flow [2024-11-07 19:27:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:27:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:27:35,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-07 19:27:35,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-07 19:27:35,247 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 3 states and 73 transitions. [2024-11-07 19:27:35,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 219 flow [2024-11-07 19:27:35,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 46 transitions, 189 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-07 19:27:35,261 INFO L231 Difference]: Finished difference. Result has 31 places, 31 transitions, 95 flow [2024-11-07 19:27:35,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=31, PETRI_TRANSITIONS=31} [2024-11-07 19:27:35,269 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -7 predicate places. [2024-11-07 19:27:35,269 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 31 transitions, 95 flow [2024-11-07 19:27:35,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 19:27:35,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:35,270 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 19:27:35,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:27:35,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:35,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:35,271 INFO L85 PathProgramCache]: Analyzing trace with hash 360966023, now seen corresponding path program 1 times [2024-11-07 19:27:35,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:35,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430597430] [2024-11-07 19:27:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:35,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:35,466 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 19:27:35,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:35,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430597430] [2024-11-07 19:27:35,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430597430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:35,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:35,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:35,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169458866] [2024-11-07 19:27:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:35,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:35,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:35,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:35,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:35,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:35,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:35,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:35,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:35,814 INFO L124 PetriNetUnfolderBase]: 1593/2038 cut-off events. [2024-11-07 19:27:35,814 INFO L125 PetriNetUnfolderBase]: For 483/483 co-relation queries the response was YES. [2024-11-07 19:27:35,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 2038 events. 1593/2038 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7019 event pairs, 113 based on Foata normal form. 34/2066 useless extension candidates. Maximal degree in co-relation 1272. Up to 842 conditions per place. [2024-11-07 19:27:35,847 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 66 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-07 19:27:35,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 81 transitions, 391 flow [2024-11-07 19:27:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:35,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-07 19:27:35,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-11-07 19:27:35,851 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 95 flow. Second operand 5 states and 120 transitions. [2024-11-07 19:27:35,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 81 transitions, 391 flow [2024-11-07 19:27:35,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 81 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:27:35,853 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 155 flow [2024-11-07 19:27:35,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2024-11-07 19:27:35,855 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-07 19:27:35,855 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 155 flow [2024-11-07 19:27:35,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:35,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:35,856 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 19:27:35,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:27:35,857 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:35,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash 69828018, now seen corresponding path program 1 times [2024-11-07 19:27:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:35,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950126357] [2024-11-07 19:27:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:35,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:35,992 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 19:27:35,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:35,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950126357] [2024-11-07 19:27:35,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950126357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:35,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:35,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:35,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555007618] [2024-11-07 19:27:35,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:35,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:35,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:35,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:35,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:35,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:35,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:35,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:35,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:35,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:36,290 INFO L124 PetriNetUnfolderBase]: 1547/1992 cut-off events. [2024-11-07 19:27:36,290 INFO L125 PetriNetUnfolderBase]: For 1776/1776 co-relation queries the response was YES. [2024-11-07 19:27:36,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6028 conditions, 1992 events. 1547/1992 cut-off events. For 1776/1776 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6970 event pairs, 95 based on Foata normal form. 46/2032 useless extension candidates. Maximal degree in co-relation 2829. Up to 812 conditions per place. [2024-11-07 19:27:36,306 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 65 selfloop transitions, 8 changer transitions 0/78 dead transitions. [2024-11-07 19:27:36,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 78 transitions, 412 flow [2024-11-07 19:27:36,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2024-11-07 19:27:36,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6941176470588235 [2024-11-07 19:27:36,310 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 155 flow. Second operand 5 states and 118 transitions. [2024-11-07 19:27:36,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 78 transitions, 412 flow [2024-11-07 19:27:36,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 78 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:27:36,316 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 169 flow [2024-11-07 19:27:36,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2024-11-07 19:27:36,317 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-07 19:27:36,317 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 169 flow [2024-11-07 19:27:36,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:36,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:36,317 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 19:27:36,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:27:36,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:36,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1115868239, now seen corresponding path program 1 times [2024-11-07 19:27:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:36,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651241576] [2024-11-07 19:27:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:36,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:36,454 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 19:27:36,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:36,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651241576] [2024-11-07 19:27:36,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651241576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:36,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:36,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976392910] [2024-11-07 19:27:36,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:36,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:36,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:36,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:36,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:36,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:36,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:36,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:36,766 INFO L124 PetriNetUnfolderBase]: 1869/2497 cut-off events. [2024-11-07 19:27:36,767 INFO L125 PetriNetUnfolderBase]: For 4481/4481 co-relation queries the response was YES. [2024-11-07 19:27:36,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8305 conditions, 2497 events. 1869/2497 cut-off events. For 4481/4481 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 10101 event pairs, 284 based on Foata normal form. 64/2537 useless extension candidates. Maximal degree in co-relation 4039. Up to 1031 conditions per place. [2024-11-07 19:27:36,786 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 79 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-07 19:27:36,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 92 transitions, 622 flow [2024-11-07 19:27:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-07 19:27:36,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6647058823529411 [2024-11-07 19:27:36,788 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 169 flow. Second operand 5 states and 113 transitions. [2024-11-07 19:27:36,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 92 transitions, 622 flow [2024-11-07 19:27:36,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 92 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:27:36,793 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 217 flow [2024-11-07 19:27:36,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-11-07 19:27:36,794 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2024-11-07 19:27:36,794 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 217 flow [2024-11-07 19:27:36,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:36,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:36,794 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 19:27:36,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:27:36,794 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:36,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:36,795 INFO L85 PathProgramCache]: Analyzing trace with hash 914627515, now seen corresponding path program 2 times [2024-11-07 19:27:36,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:36,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519235971] [2024-11-07 19:27:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:36,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:36,898 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 19:27:36,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:36,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519235971] [2024-11-07 19:27:36,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519235971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:36,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:36,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:36,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731116326] [2024-11-07 19:27:36,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:36,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:36,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:36,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:36,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:36,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:36,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:36,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:36,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:36,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:37,210 INFO L124 PetriNetUnfolderBase]: 1783/2393 cut-off events. [2024-11-07 19:27:37,212 INFO L125 PetriNetUnfolderBase]: For 4809/4809 co-relation queries the response was YES. [2024-11-07 19:27:37,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9293 conditions, 2393 events. 1783/2393 cut-off events. For 4809/4809 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 9865 event pairs, 434 based on Foata normal form. 90/2473 useless extension candidates. Maximal degree in co-relation 4805. Up to 1360 conditions per place. [2024-11-07 19:27:37,235 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 83 selfloop transitions, 8 changer transitions 0/96 dead transitions. [2024-11-07 19:27:37,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 96 transitions, 648 flow [2024-11-07 19:27:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-07 19:27:37,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-07 19:27:37,237 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 217 flow. Second operand 5 states and 119 transitions. [2024-11-07 19:27:37,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 96 transitions, 648 flow [2024-11-07 19:27:37,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 648 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:27:37,245 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 267 flow [2024-11-07 19:27:37,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-11-07 19:27:37,245 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-07 19:27:37,245 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 267 flow [2024-11-07 19:27:37,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:37,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:37,246 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 19:27:37,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:27:37,246 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:37,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1667890513, now seen corresponding path program 2 times [2024-11-07 19:27:37,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:37,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078637409] [2024-11-07 19:27:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:37,340 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 19:27:37,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:37,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078637409] [2024-11-07 19:27:37,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078637409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579238618] [2024-11-07 19:27:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:37,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:37,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:37,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:37,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:37,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:37,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:37,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:37,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:37,623 INFO L124 PetriNetUnfolderBase]: 1610/2155 cut-off events. [2024-11-07 19:27:37,623 INFO L125 PetriNetUnfolderBase]: For 6702/6702 co-relation queries the response was YES. [2024-11-07 19:27:37,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9113 conditions, 2155 events. 1610/2155 cut-off events. For 6702/6702 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8217 event pairs, 91 based on Foata normal form. 31/2164 useless extension candidates. Maximal degree in co-relation 5648. Up to 897 conditions per place. [2024-11-07 19:27:37,645 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 92 selfloop transitions, 11 changer transitions 0/108 dead transitions. [2024-11-07 19:27:37,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 108 transitions, 881 flow [2024-11-07 19:27:37,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-11-07 19:27:37,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6588235294117647 [2024-11-07 19:27:37,647 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 267 flow. Second operand 5 states and 112 transitions. [2024-11-07 19:27:37,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 108 transitions, 881 flow [2024-11-07 19:27:37,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 108 transitions, 856 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-07 19:27:37,661 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 319 flow [2024-11-07 19:27:37,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-11-07 19:27:37,662 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-07 19:27:37,663 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 319 flow [2024-11-07 19:27:37,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:37,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:37,664 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 19:27:37,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:27:37,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:37,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1200020756, now seen corresponding path program 1 times [2024-11-07 19:27:37,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:37,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121060859] [2024-11-07 19:27:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:37,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:37,766 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 19:27:37,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:37,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121060859] [2024-11-07 19:27:37,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121060859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:37,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:37,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:37,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773004115] [2024-11-07 19:27:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:37,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:37,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:37,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:37,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 319 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:37,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:37,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:37,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:38,045 INFO L124 PetriNetUnfolderBase]: 1577/2122 cut-off events. [2024-11-07 19:27:38,046 INFO L125 PetriNetUnfolderBase]: For 6970/6970 co-relation queries the response was YES. [2024-11-07 19:27:38,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9540 conditions, 2122 events. 1577/2122 cut-off events. For 6970/6970 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 8186 event pairs, 71 based on Foata normal form. 33/2133 useless extension candidates. Maximal degree in co-relation 5985. Up to 983 conditions per place. [2024-11-07 19:27:38,070 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 88 selfloop transitions, 8 changer transitions 4/105 dead transitions. [2024-11-07 19:27:38,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 105 transitions, 865 flow [2024-11-07 19:27:38,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-07 19:27:38,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-11-07 19:27:38,072 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 319 flow. Second operand 5 states and 110 transitions. [2024-11-07 19:27:38,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 105 transitions, 865 flow [2024-11-07 19:27:38,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 105 transitions, 854 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-07 19:27:38,083 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 322 flow [2024-11-07 19:27:38,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=322, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-07 19:27:38,084 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-07 19:27:38,084 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 322 flow [2024-11-07 19:27:38,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:38,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:38,085 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 19:27:38,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:27:38,086 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:38,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:38,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1639813088, now seen corresponding path program 2 times [2024-11-07 19:27:38,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:38,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035621067] [2024-11-07 19:27:38,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:38,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:38,200 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 19:27:38,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:38,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035621067] [2024-11-07 19:27:38,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035621067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:38,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:38,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:38,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712006478] [2024-11-07 19:27:38,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:38,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:38,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:38,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:38,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:38,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:38,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:38,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:38,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:38,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:38,456 INFO L124 PetriNetUnfolderBase]: 1515/2072 cut-off events. [2024-11-07 19:27:38,456 INFO L125 PetriNetUnfolderBase]: For 7283/7283 co-relation queries the response was YES. [2024-11-07 19:27:38,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9584 conditions, 2072 events. 1515/2072 cut-off events. For 7283/7283 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8414 event pairs, 258 based on Foata normal form. 62/2112 useless extension candidates. Maximal degree in co-relation 6013. Up to 1124 conditions per place. [2024-11-07 19:27:38,470 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 91 selfloop transitions, 8 changer transitions 0/104 dead transitions. [2024-11-07 19:27:38,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 104 transitions, 885 flow [2024-11-07 19:27:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:38,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-11-07 19:27:38,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2024-11-07 19:27:38,472 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 322 flow. Second operand 5 states and 108 transitions. [2024-11-07 19:27:38,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 104 transitions, 885 flow [2024-11-07 19:27:38,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 872 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-07 19:27:38,480 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 362 flow [2024-11-07 19:27:38,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-11-07 19:27:38,481 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 28 predicate places. [2024-11-07 19:27:38,481 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 362 flow [2024-11-07 19:27:38,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:38,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:38,481 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 19:27:38,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 19:27:38,482 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:38,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:38,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1371122206, now seen corresponding path program 2 times [2024-11-07 19:27:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:38,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158106054] [2024-11-07 19:27:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:38,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:38,578 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 19:27:38,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:38,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158106054] [2024-11-07 19:27:38,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158106054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:27:38,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:27:38,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:27:38,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218471418] [2024-11-07 19:27:38,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:27:38,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:27:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:27:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:27:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:27:38,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:27:38,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:38,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:27:38,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:27:38,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:27:38,849 INFO L124 PetriNetUnfolderBase]: 1447/1987 cut-off events. [2024-11-07 19:27:38,850 INFO L125 PetriNetUnfolderBase]: For 6916/6916 co-relation queries the response was YES. [2024-11-07 19:27:38,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9747 conditions, 1987 events. 1447/1987 cut-off events. For 6916/6916 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 8183 event pairs, 375 based on Foata normal form. 68/2045 useless extension candidates. Maximal degree in co-relation 8621. Up to 1150 conditions per place. [2024-11-07 19:27:38,865 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 111 selfloop transitions, 8 changer transitions 0/124 dead transitions. [2024-11-07 19:27:38,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 124 transitions, 1092 flow [2024-11-07 19:27:38,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:27:38,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:27:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-07 19:27:38,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6823529411764706 [2024-11-07 19:27:38,866 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 362 flow. Second operand 5 states and 116 transitions. [2024-11-07 19:27:38,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 124 transitions, 1092 flow [2024-11-07 19:27:38,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 124 transitions, 1034 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-11-07 19:27:38,878 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 399 flow [2024-11-07 19:27:38,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-11-07 19:27:38,879 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-07 19:27:38,879 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 399 flow [2024-11-07 19:27:38,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:27:38,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:27:38,880 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, 1] [2024-11-07 19:27:38,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 19:27:38,880 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-07 19:27:38,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:27:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2026511658, now seen corresponding path program 1 times [2024-11-07 19:27:38,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:27:38,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065038984] [2024-11-07 19:27:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:27:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:39,471 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 19:27:39,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:27:39,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065038984] [2024-11-07 19:27:39,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065038984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:27:39,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197002932] [2024-11-07 19:27:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:27:39,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:27:39,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:27:39,475 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 19:27:39,477 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 19:27:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:27:39,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:27:39,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:28:47,051 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 19:28:47,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:28:56,505 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 19:28:56,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197002932] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:28:56,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:28:56,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-07 19:28:56,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132852466] [2024-11-07 19:28:56,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:28:56,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:28:56,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:28:56,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:28:56,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=168, Unknown=5, NotChecked=0, Total=240 [2024-11-07 19:28:56,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-07 19:28:56,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 399 flow. Second operand has 16 states, 16 states have (on average 13.5) internal successors, (216), 16 states have internal predecessors, (216), 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 19:28:56,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:28:56,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-07 19:28:56,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand