./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:04:23,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:04:23,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:04:23,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:04:23,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:04:24,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:04:24,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:04:24,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:04:24,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:04:24,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:04:24,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:04:24,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:04:24,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:04:24,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:04:24,032 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:04:24,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:04:24,033 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:04:24,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:04:24,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:04:24,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:04:24,038 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:04:24,039 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:04:24,039 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:04:24,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:04:24,039 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:04:24,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:04:24,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:04:24,040 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:04:24,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:04:24,041 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:04:24,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:04:24,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:04:24,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:04:24,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:04:24,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:04:24,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:04:24,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:04:24,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:04:24,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:04:24,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:04:24,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:04:24,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:04:24,046 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2024-11-10 18:04:24,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:04:24,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:04:24,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:04:24,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:04:24,375 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:04:24,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2024-11-10 18:04:25,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:04:26,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:04:26,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2024-11-10 18:04:26,325 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb7581c1/a8f42994a7504765b26e035a6680540f/FLAG699b0c578 [2024-11-10 18:04:26,347 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb7581c1/a8f42994a7504765b26e035a6680540f [2024-11-10 18:04:26,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:04:26,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:04:26,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:04:26,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:04:26,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:04:26,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:04:26" (1/1) ... [2024-11-10 18:04:26,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7cf815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:26, skipping insertion in model container [2024-11-10 18:04:26,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:04:26" (1/1) ... [2024-11-10 18:04:26,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:04:27,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:04:27,304 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:04:27,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:04:27,557 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:04:27,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27 WrapperNode [2024-11-10 18:04:27,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:04:27,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:04:27,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:04:27,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:04:27,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,711 INFO L138 Inliner]: procedures = 491, calls = 159, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 1879 [2024-11-10 18:04:27,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:04:27,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:04:27,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:04:27,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:04:27,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,820 INFO L175 MemorySlicer]: Split 311 memory accesses to 9 slices as follows [2, 2, 12, 6, 8, 195, 4, 2, 80]. 63 percent of accesses are in the largest equivalence class. The 54 initializations are split as follows [2, 0, 4, 0, 2, 26, 0, 0, 20]. The 95 writes are split as follows [0, 1, 4, 4, 2, 61, 2, 1, 20]. [2024-11-10 18:04:27,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,881 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:04:27,938 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:04:27,939 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:04:27,939 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:04:27,940 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (1/1) ... [2024-11-10 18:04:27,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:04:27,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:04:27,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:04:27,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:04:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2024-11-10 18:04:28,039 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2024-11-10 18:04:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 18:04:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:04:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 18:04:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:04:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:04:28,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 18:04:28,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 18:04:28,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 18:04:28,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 18:04:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 18:04:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 18:04:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-10 18:04:28,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:04:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:04:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:04:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 18:04:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 18:04:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 18:04:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 18:04:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 18:04:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 18:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 18:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 18:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-10 18:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 18:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 18:04:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-10 18:04:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 18:04:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 18:04:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 18:04:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 18:04:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 18:04:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-10 18:04:28,055 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:04:28,438 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:04:28,442 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:04:28,842 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1935: havoc ~#r~0#1.base, ~#r~0#1.offset; [2024-11-10 18:04:28,842 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1935-1: SUMMARY for call ULTIMATE.dealloc(~#r~0#1.base, ~#r~0#1.offset); srcloc: null [2024-11-10 18:04:28,843 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:28,845 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-1: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:28,845 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-7: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:28,845 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-8: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:28,845 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828: havoc readV_#t~mem39#1; [2024-11-10 18:04:28,845 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-5: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,161 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-1: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-7: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-8: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-14: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-15: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,163 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-21: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,163 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-22: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,163 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-28: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,163 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-29: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,163 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-35: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,164 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-36: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-42: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-43: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-49: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-50: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-56: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-57: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-63: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-64: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-5: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-70: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-71: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-10: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-15: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-77: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-78: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-20: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-84: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-85: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-25: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-91: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-30: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-92: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-35: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-98: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-99: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,170 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-40: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,170 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-105: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,170 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-106: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,170 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-45: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-50: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-112: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-113: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-55: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-119: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-120: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-60: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-126: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-65: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-127: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-70: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-133: havoc readV_~#expected~0#1.base, readV_~#expected~0#1.offset; [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1826-134: SUMMARY for call ULTIMATE.dealloc(readV_~#expected~0#1.base, readV_~#expected~0#1.offset); srcloc: null [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-75: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-80: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,173 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-85: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,173 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-90: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,173 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1828-95: havoc readV_#t~mem39#1; [2024-11-10 18:04:31,174 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1882: havoc Pop_~temp~2#1; [2024-11-10 18:04:31,174 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1882-9: havoc Pop_~temp~2#1; [2024-11-10 18:04:31,174 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1888: havoc Pop_#t~ret61#1; [2024-11-10 18:04:31,174 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1888-8: havoc Pop_#t~ret61#1; [2024-11-10 18:04:31,175 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1946: havoc main_~#handles~0#1.base, main_~#handles~0#1.offset; [2024-11-10 18:04:31,175 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1946-1: SUMMARY for call ULTIMATE.dealloc(main_~#handles~0#1.base, main_~#handles~0#1.offset); srcloc: null [2024-11-10 18:04:31,177 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:04:31,177 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:04:32,619 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:04:32,619 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:04:32,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:04:32 BoogieIcfgContainer [2024-11-10 18:04:32,620 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:04:32,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:04:32,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:04:32,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:04:32,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:04:26" (1/3) ... [2024-11-10 18:04:32,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b632d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:04:32, skipping insertion in model container [2024-11-10 18:04:32,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:04:27" (2/3) ... [2024-11-10 18:04:32,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b632d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:04:32, skipping insertion in model container [2024-11-10 18:04:32,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:04:32" (3/3) ... [2024-11-10 18:04:32,628 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2024-11-10 18:04:32,649 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:04:32,649 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 520 error locations. [2024-11-10 18:04:32,649 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:04:32,994 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 18:04:33,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 880 places, 969 transitions, 1945 flow [2024-11-10 18:04:33,575 INFO L124 PetriNetUnfolderBase]: 174/1821 cut-off events. [2024-11-10 18:04:33,576 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:04:33,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 1821 events. 174/1821 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13520 event pairs, 0 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 935. Up to 6 conditions per place. [2024-11-10 18:04:33,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 880 places, 969 transitions, 1945 flow [2024-11-10 18:04:33,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 880 places, 969 transitions, 1945 flow [2024-11-10 18:04:33,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:04:33,673 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;@480c312b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:04:33,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 565 error locations. [2024-11-10 18:04:33,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:04:33,678 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-10 18:04:33,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:04:33,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:33,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-10 18:04:33,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr474REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [StealerErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 562 more)] === [2024-11-10 18:04:33,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:33,685 INFO L85 PathProgramCache]: Analyzing trace with hash 185188, now seen corresponding path program 1 times [2024-11-10 18:04:33,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:04:33,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059065576] [2024-11-10 18:04:33,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:33,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:04:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:34,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:04:34,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059065576] [2024-11-10 18:04:34,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059065576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:34,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:34,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:04:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50792070] [2024-11-10 18:04:34,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:34,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:04:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:04:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:04:34,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:04:34,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 969 [2024-11-10 18:04:34,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 880 places, 969 transitions, 1945 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2024-11-10 18:04:34,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:34,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 969 [2024-11-10 18:04:34,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:44,818 INFO L124 PetriNetUnfolderBase]: 35858/79283 cut-off events. [2024-11-10 18:04:44,819 INFO L125 PetriNetUnfolderBase]: For 28/49 co-relation queries the response was YES. [2024-11-10 18:04:44,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144318 conditions, 79283 events. 35858/79283 cut-off events. For 28/49 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 830692 event pairs, 8595 based on Foata normal form. 2404/53104 useless extension candidates. Maximal degree in co-relation 143045. Up to 35888 conditions per place. [2024-11-10 18:04:45,345 INFO L140 encePairwiseOnDemand]: 640/969 looper letters, 930 selfloop transitions, 73 changer transitions 0/1223 dead transitions. [2024-11-10 18:04:45,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 1223 transitions, 4459 flow [2024-11-10 18:04:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:04:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:04:45,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2123 transitions. [2024-11-10 18:04:45,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7303061575507396 [2024-11-10 18:04:45,381 INFO L175 Difference]: Start difference. First operand has 880 places, 969 transitions, 1945 flow. Second operand 3 states and 2123 transitions. [2024-11-10 18:04:45,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 1223 transitions, 4459 flow [2024-11-10 18:04:45,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 1223 transitions, 4459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:04:45,424 INFO L231 Difference]: Finished difference. Result has 688 places, 824 transitions, 2179 flow [2024-11-10 18:04:45,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=969, PETRI_DIFFERENCE_MINUEND_FLOW=1511, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2179, PETRI_PLACES=688, PETRI_TRANSITIONS=824} [2024-11-10 18:04:45,437 INFO L277 CegarLoopForPetriNet]: 880 programPoint places, -192 predicate places. [2024-11-10 18:04:45,437 INFO L471 AbstractCegarLoop]: Abstraction has has 688 places, 824 transitions, 2179 flow [2024-11-10 18:04:45,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2024-11-10 18:04:45,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:45,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-10 18:04:45,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:04:45,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr475REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [StealerErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 562 more)] === [2024-11-10 18:04:45,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:45,441 INFO L85 PathProgramCache]: Analyzing trace with hash 185189, now seen corresponding path program 1 times [2024-11-10 18:04:45,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:04:45,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287152787] [2024-11-10 18:04:45,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:45,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:04:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:45,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:04:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287152787] [2024-11-10 18:04:45,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287152787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:45,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:45,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:04:45,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589259207] [2024-11-10 18:04:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:45,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:04:45,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:04:45,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:04:45,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:04:45,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 969 [2024-11-10 18:04:45,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 824 transitions, 2179 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2024-11-10 18:04:45,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:45,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 969 [2024-11-10 18:04:45,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:55,249 INFO L124 PetriNetUnfolderBase]: 34930/78261 cut-off events. [2024-11-10 18:04:55,249 INFO L125 PetriNetUnfolderBase]: For 8508/8900 co-relation queries the response was YES. [2024-11-10 18:04:55,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153450 conditions, 78261 events. 34930/78261 cut-off events. For 8508/8900 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 816812 event pairs, 22546 based on Foata normal form. 3/52195 useless extension candidates. Maximal degree in co-relation 152067. Up to 62087 conditions per place. [2024-11-10 18:04:55,756 INFO L140 encePairwiseOnDemand]: 962/969 looper letters, 541 selfloop transitions, 4 changer transitions 0/832 dead transitions. [2024-11-10 18:04:55,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 832 transitions, 3289 flow [2024-11-10 18:04:55,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:04:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:04:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1290 transitions. [2024-11-10 18:04:55,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4437564499484004 [2024-11-10 18:04:55,762 INFO L175 Difference]: Start difference. First operand has 688 places, 824 transitions, 2179 flow. Second operand 3 states and 1290 transitions. [2024-11-10 18:04:55,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 832 transitions, 3289 flow [2024-11-10 18:04:55,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 832 transitions, 3141 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:04:55,840 INFO L231 Difference]: Finished difference. Result has 686 places, 824 transitions, 2051 flow [2024-11-10 18:04:55,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=969, PETRI_DIFFERENCE_MINUEND_FLOW=2027, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=817, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2051, PETRI_PLACES=686, PETRI_TRANSITIONS=824} [2024-11-10 18:04:55,843 INFO L277 CegarLoopForPetriNet]: 880 programPoint places, -194 predicate places. [2024-11-10 18:04:55,843 INFO L471 AbstractCegarLoop]: Abstraction has has 686 places, 824 transitions, 2051 flow [2024-11-10 18:04:55,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2024-11-10 18:04:55,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:55,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:04:55,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:04:55,845 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr470REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [StealerErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 562 more)] === [2024-11-10 18:04:55,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 178164180, now seen corresponding path program 1 times [2024-11-10 18:04:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:04:55,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101078465] [2024-11-10 18:04:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:04:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:55,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:04:55,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101078465] [2024-11-10 18:04:55,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101078465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:55,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:55,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:04:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811785589] [2024-11-10 18:04:55,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:55,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:04:55,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:04:55,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:04:55,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:04:56,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 969 [2024-11-10 18:04:56,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 824 transitions, 2051 flow. Second operand has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2024-11-10 18:04:56,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:56,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 969 [2024-11-10 18:04:56,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:05:06,921 INFO L124 PetriNetUnfolderBase]: 38148/84143 cut-off events. [2024-11-10 18:05:06,921 INFO L125 PetriNetUnfolderBase]: For 5354/5644 co-relation queries the response was YES. [2024-11-10 18:05:07,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165193 conditions, 84143 events. 38148/84143 cut-off events. For 5354/5644 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 880690 event pairs, 8242 based on Foata normal form. 41/54626 useless extension candidates. Maximal degree in co-relation 163847. Up to 35956 conditions per place. [2024-11-10 18:05:07,475 INFO L140 encePairwiseOnDemand]: 816/969 looper letters, 990 selfloop transitions, 195 changer transitions 0/1402 dead transitions. [2024-11-10 18:05:07,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 1402 transitions, 5622 flow [2024-11-10 18:05:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:05:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:05:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2303 transitions. [2024-11-10 18:05:07,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47533539731682145 [2024-11-10 18:05:07,484 INFO L175 Difference]: Start difference. First operand has 686 places, 824 transitions, 2051 flow. Second operand 5 states and 2303 transitions. [2024-11-10 18:05:07,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 1402 transitions, 5622 flow [2024-11-10 18:05:07,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 687 places, 1402 transitions, 5617 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:05:07,522 INFO L231 Difference]: Finished difference. Result has 690 places, 930 transitions, 3128 flow [2024-11-10 18:05:07,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=969, PETRI_DIFFERENCE_MINUEND_FLOW=2043, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3128, PETRI_PLACES=690, PETRI_TRANSITIONS=930} [2024-11-10 18:05:07,524 INFO L277 CegarLoopForPetriNet]: 880 programPoint places, -190 predicate places. [2024-11-10 18:05:07,525 INFO L471 AbstractCegarLoop]: Abstraction has has 690 places, 930 transitions, 3128 flow [2024-11-10 18:05:07,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2024-11-10 18:05:07,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:05:07,526 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:05:07,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:05:07,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr471REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [StealerErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE, StealerErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 562 more)] === [2024-11-10 18:05:07,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:05:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash 178164181, now seen corresponding path program 1 times [2024-11-10 18:05:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:05:07,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392047312] [2024-11-10 18:05:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:05:07,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:05:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:05:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:05:07,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:05:07,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392047312] [2024-11-10 18:05:07,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392047312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:05:07,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:05:07,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:05:07,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299314062] [2024-11-10 18:05:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:05:07,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:05:07,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:05:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:05:07,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:05:08,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 969 [2024-11-10 18:05:08,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 930 transitions, 3128 flow. Second operand has 4 states, 4 states have (on average 262.75) internal successors, (1051), 4 states have internal predecessors, (1051), 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) [2024-11-10 18:05:08,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:05:08,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 969 [2024-11-10 18:05:08,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand