./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-complex/bounded_buffer.i --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/pthread-complex/bounded_buffer.i', '-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', '6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5'] 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/pthread-complex/bounded_buffer.i -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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:21:30,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:21:30,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:21:30,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:21:30,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:21:31,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:21:31,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:21:31,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:21:31,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:21:31,020 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:21:31,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:21:31,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:21:31,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:21:31,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:21:31,021 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:21:31,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:21:31,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:21:31,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:21:31,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:21:31,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:21:31,022 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:21:31,022 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:21:31,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:21:31,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:21:31,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:21:31,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:21:31,024 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 -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2024-11-07 19:21:31,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:21:31,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:21:31,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:21:31,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:21:31,313 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:21:31,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-07 19:21:32,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:21:32,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:21:32,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-07 19:21:32,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b896d9a0e/c41fb24103e44ee89eeda6b906cd27aa/FLAGe7ce45b98 [2024-11-07 19:21:33,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b896d9a0e/c41fb24103e44ee89eeda6b906cd27aa [2024-11-07 19:21:33,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:21:33,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:21:33,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:21:33,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:21:33,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:21:33,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e35c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33, skipping insertion in model container [2024-11-07 19:21:33,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:21:33,524 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 19:21:33,527 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 19:21:33,555 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 19:21:33,559 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 19:21:33,566 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 19:21:33,568 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 19:21:33,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:21:33,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:21:33,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:21:33,777 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:21:33,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33 WrapperNode [2024-11-07 19:21:33,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:21:33,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:21:33,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:21:33,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:21:33,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,847 INFO L138 Inliner]: procedures = 429, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 487 [2024-11-07 19:21:33,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:21:33,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:21:33,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:21:33,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:21:33,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,869 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,911 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 5, 6, 5, 2, 58]. 74 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 3, 2, 3, 1, 17]. [2024-11-07 19:21:33,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:21:33,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:21:33,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:21:33,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:21:33,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (1/1) ... [2024-11-07 19:21:33,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:21:33,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:21:34,012 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 19:21:34,016 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 19:21:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-11-07 19:21:34,042 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 19:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 19:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 19:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 19:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 19:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 19:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:21:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 19:21:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 19:21:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 19:21:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 19:21:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 19:21:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-11-07 19:21:34,045 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-11-07 19:21:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 19:21:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 19:21:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 19:21:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 19:21:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 19:21:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 19:21:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 19:21:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:21:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 19:21:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 19:21:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 19:21:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 19:21:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 19:21:34,049 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 19:21:34,300 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:21:34,303 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:21:35,337 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:21:35,338 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:21:35,612 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:21:35,615 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-07 19:21:35,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:21:35 BoogieIcfgContainer [2024-11-07 19:21:35,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:21:35,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:21:35,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:21:35,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:21:35,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:21:33" (1/3) ... [2024-11-07 19:21:35,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483dae15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:21:35, skipping insertion in model container [2024-11-07 19:21:35,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:33" (2/3) ... [2024-11-07 19:21:35,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483dae15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:21:35, skipping insertion in model container [2024-11-07 19:21:35,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:21:35" (3/3) ... [2024-11-07 19:21:35,624 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-11-07 19:21:35,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:21:35,638 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 166 error locations. [2024-11-07 19:21:35,639 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:21:35,810 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 19:21:35,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 379 transitions, 778 flow [2024-11-07 19:21:36,139 INFO L124 PetriNetUnfolderBase]: 93/866 cut-off events. [2024-11-07 19:21:36,142 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 19:21:36,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 866 events. 93/866 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6324 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 454. Up to 16 conditions per place. [2024-11-07 19:21:36,165 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 379 transitions, 778 flow [2024-11-07 19:21:36,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 379 transitions, 778 flow [2024-11-07 19:21:36,203 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:21:36,216 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;@4caed7bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:21:36,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 251 error locations. [2024-11-07 19:21:36,224 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:21:36,224 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 19:21:36,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:21:36,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:36,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:21:36,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 248 more)] === [2024-11-07 19:21:36,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:36,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1444298, now seen corresponding path program 1 times [2024-11-07 19:21:36,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:21:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405874085] [2024-11-07 19:21:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:36,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:21:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:36,513 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 19:21:36,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:21:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405874085] [2024-11-07 19:21:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405874085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:36,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:36,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:21:36,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078122969] [2024-11-07 19:21:36,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:36,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:36,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:21:36,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:36,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:36,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 379 [2024-11-07 19:21:36,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 379 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 19:21:36,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:36,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 379 [2024-11-07 19:21:36,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:46,822 INFO L124 PetriNetUnfolderBase]: 56825/130484 cut-off events. [2024-11-07 19:21:46,822 INFO L125 PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES. [2024-11-07 19:21:47,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205113 conditions, 130484 events. 56825/130484 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 3335. Compared 1647092 event pairs, 37071 based on Foata normal form. 7582/91212 useless extension candidates. Maximal degree in co-relation 198310. Up to 74448 conditions per place. [2024-11-07 19:21:47,804 INFO L140 encePairwiseOnDemand]: 355/379 looper letters, 121 selfloop transitions, 2 changer transitions 0/356 dead transitions. [2024-11-07 19:21:47,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 356 transitions, 978 flow [2024-11-07 19:21:47,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2024-11-07 19:21:47,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7423043095866315 [2024-11-07 19:21:47,819 INFO L175 Difference]: Start difference. First operand has 341 places, 379 transitions, 778 flow. Second operand 3 states and 844 transitions. [2024-11-07 19:21:47,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 356 transitions, 978 flow [2024-11-07 19:21:47,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 356 transitions, 978 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:21:47,838 INFO L231 Difference]: Finished difference. Result has 331 places, 356 transitions, 736 flow [2024-11-07 19:21:47,841 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=331, PETRI_TRANSITIONS=356} [2024-11-07 19:21:47,845 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -10 predicate places. [2024-11-07 19:21:47,845 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 356 transitions, 736 flow [2024-11-07 19:21:47,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 19:21:47,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:47,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:21:47,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:21:47,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 248 more)] === [2024-11-07 19:21:47,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:47,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1444299, now seen corresponding path program 1 times [2024-11-07 19:21:47,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:21:47,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451964941] [2024-11-07 19:21:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:47,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:21:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:48,018 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 19:21:48,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:21:48,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451964941] [2024-11-07 19:21:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451964941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:48,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:48,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:21:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077071914] [2024-11-07 19:21:48,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:48,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:48,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:21:48,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:48,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:48,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 379 [2024-11-07 19:21:48,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 356 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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 19:21:48,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:48,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 379 [2024-11-07 19:21:48,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:57,140 INFO L124 PetriNetUnfolderBase]: 56825/130473 cut-off events. [2024-11-07 19:21:57,140 INFO L125 PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES. [2024-11-07 19:21:57,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205098 conditions, 130473 events. 56825/130473 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 3342. Compared 1646322 event pairs, 37071 based on Foata normal form. 7/83626 useless extension candidates. Maximal degree in co-relation 205054. Up to 74448 conditions per place. [2024-11-07 19:21:58,211 INFO L140 encePairwiseOnDemand]: 366/379 looper letters, 114 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2024-11-07 19:21:58,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 345 transitions, 946 flow [2024-11-07 19:21:58,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 847 transitions. [2024-11-07 19:21:58,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7449428320140721 [2024-11-07 19:21:58,219 INFO L175 Difference]: Start difference. First operand has 331 places, 356 transitions, 736 flow. Second operand 3 states and 847 transitions. [2024-11-07 19:21:58,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 345 transitions, 946 flow [2024-11-07 19:21:58,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 345 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:58,231 INFO L231 Difference]: Finished difference. Result has 320 places, 345 transitions, 714 flow [2024-11-07 19:21:58,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=320, PETRI_TRANSITIONS=345} [2024-11-07 19:21:58,233 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -21 predicate places. [2024-11-07 19:21:58,233 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 345 transitions, 714 flow [2024-11-07 19:21:58,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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 19:21:58,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:58,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 19:21:58,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:21:58,235 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 248 more)] === [2024-11-07 19:21:58,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1388065044, now seen corresponding path program 1 times [2024-11-07 19:21:58,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:21:58,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876767190] [2024-11-07 19:21:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:58,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:21:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:58,331 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 19:21:58,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:21:58,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876767190] [2024-11-07 19:21:58,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876767190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:58,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:58,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:58,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66872503] [2024-11-07 19:21:58,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:58,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:21:58,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:58,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:58,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 379 [2024-11-07 19:21:58,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 345 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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 19:21:58,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:58,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 379 [2024-11-07 19:21:58,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:22:06,534 INFO L124 PetriNetUnfolderBase]: 56824/130472 cut-off events. [2024-11-07 19:22:06,534 INFO L125 PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES.