./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.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 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:54:23,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:54:23,718 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 14:54:23,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:54:23,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:54:23,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:54:23,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:54:23,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:54:23,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:54:23,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:54:23,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:54:23,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:54:23,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:54:23,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:54:23,756 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:54:23,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:54:23,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:54:23,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:54:23,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:54:23,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:54:23,758 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:54:23,760 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:54:23,760 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 14:54:23,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:54:23,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:54:23,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:54:23,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:54:23,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:54:23,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:54:23,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:54:23,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:54:23,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:54:23,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:54:23,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:54:23,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:54:23,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:54:23,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:54:23,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:54:23,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:54:23,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:54:23,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:54:23,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:54:23,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 [2024-11-20 14:54:23,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:54:23,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:54:23,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:54:23,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:54:23,986 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:54:23,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-20 14:54:25,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:54:25,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:54:25,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-20 14:54:25,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba506d0f9/86fa54213cbc4e0593032289add893fc/FLAG1600a230e [2024-11-20 14:54:25,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba506d0f9/86fa54213cbc4e0593032289add893fc [2024-11-20 14:54:25,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:54:25,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:54:25,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:54:25,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:54:25,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:54:25,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:54:25" (1/1) ... [2024-11-20 14:54:25,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecb805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:25, skipping insertion in model container [2024-11-20 14:54:25,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:54:25" (1/1) ... [2024-11-20 14:54:25,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:54:26,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:26,442 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:26,464 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:26,502 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:26,524 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:26,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:54:26,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:54:26,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:54:26,893 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:54:26,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26 WrapperNode [2024-11-20 14:54:26,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:54:26,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:54:26,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:54:26,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:54:26,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:26,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,087 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-20 14:54:27,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:54:27,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:54:27,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:54:27,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:54:27,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,184 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 37, 35, 1040, 2, 480, 16, 59, 2, 35, 11, 0, 5, 15, 120, 67, 5, 2, 20, 4, 3, 2, 18, 34, 5, 12]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 3, 25, 15, 1040, 0, 480, 5, 59, 0, 32, 2, 0, 1, 10, 120, 67, 4, 2, 4, 4, 0, 0, 18, 34, 1, 6]. The 37 writes are split as follows [0, 0, 0, 6, 0, 1, 0, 8, 0, 2, 0, 5, 0, 1, 2, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 2, 6]. [2024-11-20 14:54:27,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:54:27,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:54:27,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:54:27,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:54:27,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (1/1) ... [2024-11-20 14:54:27,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:54:27,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:54:27,382 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) [2024-11-20 14:54:27,384 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 [2024-11-20 14:54:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-20 14:54:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-20 14:54:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 14:54:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-20 14:54:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-20 14:54:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-20 14:54:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 14:54:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-20 14:54:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-20 14:54:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 14:54:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-20 14:54:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-20 14:54:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-20 14:54:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 14:54:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 14:54:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 14:54:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 14:54:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 14:54:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-20 14:54:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-20 14:54:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-20 14:54:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-20 14:54:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 14:54:27,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 14:54:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-20 14:54:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-20 14:54:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-20 14:54:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-20 14:54:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-20 14:54:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-20 14:54:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:54:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:54:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-20 14:54:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-20 14:54:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 14:54:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 14:54:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-20 14:54:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-20 14:54:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 14:54:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 14:54:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 14:54:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-20 14:54:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-20 14:54:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-20 14:54:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-20 14:54:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-20 14:54:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-20 14:54:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-20 14:54:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-20 14:54:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-20 14:54:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-20 14:54:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-20 14:54:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-20 14:54:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-20 14:54:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-20 14:54:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-20 14:54:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-20 14:54:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-20 14:54:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-20 14:54:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-20 14:54:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-20 14:54:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-20 14:54:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-20 14:54:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-20 14:54:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-20 14:54:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-20 14:54:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-20 14:54:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-20 14:54:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-20 14:54:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-20 14:54:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 14:54:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-20 14:54:27,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-20 14:54:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-20 14:54:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-20 14:54:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-20 14:54:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-20 14:54:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 14:54:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-20 14:54:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-20 14:54:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-20 14:54:27,787 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:54:27,790 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:54:31,039 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-20 14:54:31,039 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:54:31,093 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:54:31,094 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 14:54:31,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:54:31 BoogieIcfgContainer [2024-11-20 14:54:31,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:54:31,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:54:31,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:54:31,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:54:31,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:54:25" (1/3) ... [2024-11-20 14:54:31,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d9c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:54:31, skipping insertion in model container [2024-11-20 14:54:31,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:26" (2/3) ... [2024-11-20 14:54:31,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d9c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:54:31, skipping insertion in model container [2024-11-20 14:54:31,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:54:31" (3/3) ... [2024-11-20 14:54:31,109 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb.i [2024-11-20 14:54:31,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:54:31,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-20 14:54:31,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:54:31,188 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;@1f2f613a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:54:31,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-20 14:54:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-20 14:54:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 14:54:31,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:31,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 14:54:31,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:31,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-20 14:54:31,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:31,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090489019] [2024-11-20 14:54:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:31,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:34,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:34,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090489019] [2024-11-20 14:54:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090489019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:34,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:34,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:34,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055965519] [2024-11-20 14:54:34,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:34,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:54:34,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:54:34,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:34,044 INFO L87 Difference]: Start difference. First operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:35,381 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-20 14:54:35,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:35,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 14:54:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:35,399 INFO L225 Difference]: With dead ends: 1270 [2024-11-20 14:54:35,399 INFO L226 Difference]: Without dead ends: 1266 [2024-11-20 14:54:35,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:54:35,403 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:35,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 14:54:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-20 14:54:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-20 14:54:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 660 states have (on average 1.7606060606060605) internal successors, (1162), 882 states have internal predecessors, (1162), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-20 14:54:35,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-20 14:54:35,492 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-20 14:54:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:35,492 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-20 14:54:35,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-20 14:54:35,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 14:54:35,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:35,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 14:54:35,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:54:35,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:35,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-20 14:54:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:35,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555063826] [2024-11-20 14:54:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:38,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:38,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555063826] [2024-11-20 14:54:38,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555063826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:38,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:38,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:38,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324191430] [2024-11-20 14:54:38,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:38,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:54:38,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:38,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:54:38,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:38,206 INFO L87 Difference]: Start difference. First operand 1053 states and 1438 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:39,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:39,086 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-20 14:54:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:39,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 14:54:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:39,092 INFO L225 Difference]: With dead ends: 1193 [2024-11-20 14:54:39,092 INFO L226 Difference]: Without dead ends: 1193 [2024-11-20 14:54:39,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:54:39,093 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:39,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 14:54:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-20 14:54:39,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-20 14:54:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 709 states have (on average 1.7249647390691114) internal successors, (1223), 932 states have internal predecessors, (1223), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-20 14:54:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-20 14:54:39,125 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-20 14:54:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:39,126 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-20 14:54:39,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-20 14:54:39,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 14:54:39,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:39,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:39,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 14:54:39,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:39,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:39,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-20 14:54:39,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:39,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095142026] [2024-11-20 14:54:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:39,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:41,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:41,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:41,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095142026] [2024-11-20 14:54:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095142026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:41,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:41,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266822239] [2024-11-20 14:54:41,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:41,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:54:41,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:41,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:54:41,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:54:41,189 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:42,343 INFO L93 Difference]: Finished difference Result 1360 states and 1649 transitions. [2024-11-20 14:54:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:42,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-20 14:54:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:42,350 INFO L225 Difference]: With dead ends: 1360 [2024-11-20 14:54:42,350 INFO L226 Difference]: Without dead ends: 1360 [2024-11-20 14:54:42,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:42,353 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 868 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:42,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1529 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 14:54:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-20 14:54:42,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1133. [2024-11-20 14:54:42,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 709 states have (on average 1.7179125528913963) internal successors, (1218), 931 states have internal predecessors, (1218), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-20 14:54:42,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-20 14:54:42,388 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-20 14:54:42,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:42,388 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-20 14:54:42,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:42,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-20 14:54:42,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 14:54:42,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:42,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:42,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 14:54:42,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:42,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:42,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-20 14:54:42,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:42,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373516487] [2024-11-20 14:54:42,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:42,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:44,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:44,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373516487] [2024-11-20 14:54:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373516487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:44,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:54:44,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362747826] [2024-11-20 14:54:44,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:44,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:54:44,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:44,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:54:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:44,696 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:45,703 INFO L93 Difference]: Finished difference Result 1217 states and 1572 transitions. [2024-11-20 14:54:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:54:45,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-20 14:54:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:45,708 INFO L225 Difference]: With dead ends: 1217 [2024-11-20 14:54:45,708 INFO L226 Difference]: Without dead ends: 1217 [2024-11-20 14:54:45,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:54:45,709 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 407 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:45,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1880 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 14:54:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-20 14:54:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1136. [2024-11-20 14:54:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 712 states have (on average 1.7148876404494382) internal successors, (1221), 934 states have internal predecessors, (1221), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-20 14:54:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-20 14:54:45,742 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-20 14:54:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:45,743 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-20 14:54:45,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:45,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-20 14:54:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 14:54:45,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:45,743 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:45,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 14:54:45,744 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:45,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-20 14:54:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984818985] [2024-11-20 14:54:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:48,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984818985] [2024-11-20 14:54:48,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984818985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:54:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347777211] [2024-11-20 14:54:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:48,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:54:48,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:54:48,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:54:48,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 14:54:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:50,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 14:54:50,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:54:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:50,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:54:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:50,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347777211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:54:50,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:54:50,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-20 14:54:50,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560259658] [2024-11-20 14:54:50,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:54:50,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 14:54:50,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:50,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 14:54:50,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 14:54:50,591 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:54:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:53,240 INFO L93 Difference]: Finished difference Result 1437 states and 1816 transitions. [2024-11-20 14:54:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 14:54:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-20 14:54:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:53,246 INFO L225 Difference]: With dead ends: 1437 [2024-11-20 14:54:53,248 INFO L226 Difference]: Without dead ends: 1437 [2024-11-20 14:54:53,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-20 14:54:53,249 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 882 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 3568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:53,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 4490 Invalid, 3568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 14:54:53,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-20 14:54:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1289. [2024-11-20 14:54:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 823 states have (on average 1.701093560145808) internal successors, (1400), 1046 states have internal predecessors, (1400), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:54:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-20 14:54:53,285 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-20 14:54:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:53,285 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-20 14:54:53,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:54:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-20 14:54:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-20 14:54:53,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:53,286 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:53,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 14:54:53,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:54:53,487 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:53,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-20 14:54:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:53,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303112768] [2024-11-20 14:54:53,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:53,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:55,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 14:54:55,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:55,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303112768] [2024-11-20 14:54:55,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303112768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:55,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:55,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:55,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334712991] [2024-11-20 14:54:55,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:55,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:54:55,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:55,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:54:55,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:54:55,404 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:56,365 INFO L93 Difference]: Finished difference Result 1521 states and 1891 transitions. [2024-11-20 14:54:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-20 14:54:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:56,370 INFO L225 Difference]: With dead ends: 1521 [2024-11-20 14:54:56,370 INFO L226 Difference]: Without dead ends: 1521 [2024-11-20 14:54:56,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:56,371 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 853 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:56,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1540 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 14:54:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-20 14:54:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1287. [2024-11-20 14:54:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 823 states have (on average 1.6901579586877278) internal successors, (1391), 1044 states have internal predecessors, (1391), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:54:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-20 14:54:56,396 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-20 14:54:56,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:56,397 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-20 14:54:56,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-20 14:54:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-20 14:54:56,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:56,398 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:56,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 14:54:56,398 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:56,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-20 14:54:56,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:56,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247603222] [2024-11-20 14:54:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:56,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:58,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:58,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:58,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247603222] [2024-11-20 14:54:58,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247603222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:54:58,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207622488] [2024-11-20 14:54:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:58,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:54:58,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:54:58,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:54:58,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 14:55:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:00,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 14:55:00,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:00,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:00,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207622488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:55:00,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:55:00,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-20 14:55:00,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801671917] [2024-11-20 14:55:00,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:00,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 14:55:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:00,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 14:55:00,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:55:00,543 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:01,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:01,068 INFO L93 Difference]: Finished difference Result 1329 states and 1807 transitions. [2024-11-20 14:55:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 14:55:01,068 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-20 14:55:01,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:01,072 INFO L225 Difference]: With dead ends: 1329 [2024-11-20 14:55:01,072 INFO L226 Difference]: Without dead ends: 1329 [2024-11-20 14:55:01,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:55:01,073 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 151 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:01,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3294 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 14:55:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-20 14:55:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1305. [2024-11-20 14:55:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 841 states have (on average 1.6753864447086801) internal successors, (1409), 1062 states have internal predecessors, (1409), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-20 14:55:01,095 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-20 14:55:01,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:01,096 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-20 14:55:01,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-20 14:55:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 14:55:01,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:01,097 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:01,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 14:55:01,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-20 14:55:01,298 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:01,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:01,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-20 14:55:01,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:01,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653318890] [2024-11-20 14:55:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:01,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:03,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 14:55:03,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:03,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653318890] [2024-11-20 14:55:03,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653318890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:03,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:03,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:55:03,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311803381] [2024-11-20 14:55:03,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:03,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:55:03,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:03,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:55:03,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:03,462 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:04,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:04,363 INFO L93 Difference]: Finished difference Result 1385 states and 1819 transitions. [2024-11-20 14:55:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:55:04,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-11-20 14:55:04,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:04,368 INFO L225 Difference]: With dead ends: 1385 [2024-11-20 14:55:04,368 INFO L226 Difference]: Without dead ends: 1385 [2024-11-20 14:55:04,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:55:04,369 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 377 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:04,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1860 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 14:55:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-20 14:55:04,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1303. [2024-11-20 14:55:04,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 841 states have (on average 1.6730083234244946) internal successors, (1407), 1060 states have internal predecessors, (1407), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-20 14:55:04,394 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-20 14:55:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:04,396 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-20 14:55:04,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-20 14:55:04,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 14:55:04,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:04,398 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:04,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 14:55:04,398 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:04,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-20 14:55:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:04,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355660761] [2024-11-20 14:55:04,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:04,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:06,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:06,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:06,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:06,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:06,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:06,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355660761] [2024-11-20 14:55:06,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355660761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:06,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:06,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:55:06,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25054651] [2024-11-20 14:55:06,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:06,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:06,327 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:06,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:06,731 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2024-11-20 14:55:06,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:55:06,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-20 14:55:06,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:06,735 INFO L225 Difference]: With dead ends: 1326 [2024-11-20 14:55:06,736 INFO L226 Difference]: Without dead ends: 1326 [2024-11-20 14:55:06,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:06,738 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 883 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:06,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1274 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 14:55:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-20 14:55:06,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2024-11-20 14:55:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 840 states have (on average 1.6714285714285715) internal successors, (1404), 1059 states have internal predecessors, (1404), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-20 14:55:06,760 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-20 14:55:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:06,761 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-20 14:55:06,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-20 14:55:06,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 14:55:06,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:06,763 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:06,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 14:55:06,763 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:06,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:06,763 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-20 14:55:06,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:06,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193735787] [2024-11-20 14:55:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:06,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:08,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:08,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:08,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:08,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:08,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193735787] [2024-11-20 14:55:08,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193735787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:08,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:08,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:55:08,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604069399] [2024-11-20 14:55:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:08,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:08,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:08,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:08,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:08,776 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:55:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:09,428 INFO L93 Difference]: Finished difference Result 1325 states and 1801 transitions. [2024-11-20 14:55:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:55:09,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2024-11-20 14:55:09,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:09,433 INFO L225 Difference]: With dead ends: 1325 [2024-11-20 14:55:09,433 INFO L226 Difference]: Without dead ends: 1325 [2024-11-20 14:55:09,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:09,434 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 139 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:09,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1769 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 14:55:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-20 14:55:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1301. [2024-11-20 14:55:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 840 states have (on average 1.6702380952380953) internal successors, (1403), 1058 states have internal predecessors, (1403), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-20 14:55:09,453 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-20 14:55:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:09,453 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-20 14:55:09,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:55:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-20 14:55:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 14:55:09,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:09,454 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:09,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 14:55:09,454 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:09,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-20 14:55:09,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:09,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590350364] [2024-11-20 14:55:09,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:09,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:11,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:11,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:11,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:11,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:11,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:11,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590350364] [2024-11-20 14:55:11,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590350364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:11,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:11,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:55:11,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74737909] [2024-11-20 14:55:11,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:11,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:55:11,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:11,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:55:11,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:11,675 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:12,399 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2024-11-20 14:55:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:55:12,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-11-20 14:55:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:12,403 INFO L225 Difference]: With dead ends: 1324 [2024-11-20 14:55:12,403 INFO L226 Difference]: Without dead ends: 1324 [2024-11-20 14:55:12,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:55:12,405 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 878 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:12,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1759 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 14:55:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-20 14:55:12,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1300. [2024-11-20 14:55:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 840 states have (on average 1.6690476190476191) internal successors, (1402), 1057 states have internal predecessors, (1402), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-20 14:55:12,425 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-20 14:55:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:12,426 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-20 14:55:12,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-20 14:55:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 14:55:12,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:12,430 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:12,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 14:55:12,430 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr164ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:12,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-20 14:55:12,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:12,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462643952] [2024-11-20 14:55:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:12,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:14,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:14,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:14,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:14,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:14,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 14:55:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:14,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:14,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462643952] [2024-11-20 14:55:14,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462643952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:14,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:14,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:55:14,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571860212] [2024-11-20 14:55:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:14,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:14,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:14,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:14,190 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 14:55:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:14,803 INFO L93 Difference]: Finished difference Result 1365 states and 1809 transitions. [2024-11-20 14:55:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:55:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2024-11-20 14:55:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:14,808 INFO L225 Difference]: With dead ends: 1365 [2024-11-20 14:55:14,808 INFO L226 Difference]: Without dead ends: 1352 [2024-11-20 14:55:14,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:14,808 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 233 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:14,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1706 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 14:55:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-20 14:55:14,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1295. [2024-11-20 14:55:14,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 837 states have (on average 1.6702508960573477) internal successors, (1398), 1054 states have internal predecessors, (1398), 183 states have call successors, (183), 79 states have call predecessors, (183), 78 states have return successors, (181), 174 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-20 14:55:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-20 14:55:14,828 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-20 14:55:14,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:14,828 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-20 14:55:14,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 14:55:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-20 14:55:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 14:55:14,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:14,829 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:14,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 14:55:14,829 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:14,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-20 14:55:14,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:14,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744809569] [2024-11-20 14:55:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:14,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:17,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:17,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:17,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:17,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 14:55:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:17,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:17,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744809569] [2024-11-20 14:55:17,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744809569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:17,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923894316] [2024-11-20 14:55:17,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:17,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:17,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:55:17,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:55:17,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 14:55:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:19,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 14:55:19,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:19,895 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-20 14:55:19,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-20 14:55:19,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-20 14:55:19,947 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:19,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:19,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923894316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:19,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:55:19,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-20 14:55:19,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467388573] [2024-11-20 14:55:19,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:19,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 14:55:19,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 14:55:19,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 14:55:19,987 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-20 14:55:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:22,025 INFO L93 Difference]: Finished difference Result 1890 states and 2482 transitions. [2024-11-20 14:55:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 14:55:22,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2024-11-20 14:55:22,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:22,034 INFO L225 Difference]: With dead ends: 1890 [2024-11-20 14:55:22,034 INFO L226 Difference]: Without dead ends: 1890 [2024-11-20 14:55:22,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-20 14:55:22,035 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 942 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:22,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4025 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 14:55:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-20 14:55:22,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1634. [2024-11-20 14:55:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1097 states have (on average 1.6937101185050136) internal successors, (1858), 1325 states have internal predecessors, (1858), 241 states have call successors, (241), 101 states have call predecessors, (241), 100 states have return successors, (239), 225 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-20 14:55:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-20 14:55:22,065 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-20 14:55:22,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:22,065 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-20 14:55:22,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-20 14:55:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-20 14:55:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 14:55:22,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:22,067 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:22,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 14:55:22,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:22,268 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:22,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-20 14:55:22,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:22,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651008794] [2024-11-20 14:55:22,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:22,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:24,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:24,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:24,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:24,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:24,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 14:55:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:25,000 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:25,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:25,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651008794] [2024-11-20 14:55:25,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651008794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:25,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357286373] [2024-11-20 14:55:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:25,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:25,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:55:25,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:55:25,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 14:55:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:27,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-20 14:55:27,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 14:55:27,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-20 14:55:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:27,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:27,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357286373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:27,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:55:27,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2024-11-20 14:55:27,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411460360] [2024-11-20 14:55:27,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:27,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 14:55:27,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:27,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 14:55:27,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-20 14:55:27,969 INFO L87 Difference]: Start difference. First operand 1634 states and 2338 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-20 14:55:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:30,607 INFO L93 Difference]: Finished difference Result 2102 states and 2721 transitions. [2024-11-20 14:55:30,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 14:55:30,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 78 [2024-11-20 14:55:30,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:30,613 INFO L225 Difference]: With dead ends: 2102 [2024-11-20 14:55:30,613 INFO L226 Difference]: Without dead ends: 2102 [2024-11-20 14:55:30,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-20 14:55:30,614 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 2438 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 4656 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 4656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:30,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 3641 Invalid, 5180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 4656 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 14:55:30,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2024-11-20 14:55:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1819. [2024-11-20 14:55:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7032258064516128) internal successors, (2112), 1464 states have internal predecessors, (2112), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-20 14:55:30,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2646 transitions. [2024-11-20 14:55:30,640 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2646 transitions. Word has length 78 [2024-11-20 14:55:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:30,640 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2646 transitions. [2024-11-20 14:55:30,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-20 14:55:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2646 transitions. [2024-11-20 14:55:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 14:55:30,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:30,641 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:30,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 14:55:30,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:30,842 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr114REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:30,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499240, now seen corresponding path program 1 times [2024-11-20 14:55:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:30,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578292987] [2024-11-20 14:55:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:30,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 14:55:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 14:55:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:32,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:32,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578292987] [2024-11-20 14:55:32,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578292987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:32,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:32,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:55:32,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20411072] [2024-11-20 14:55:32,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:32,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:32,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:32,645 INFO L87 Difference]: Start difference. First operand 1819 states and 2646 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 14:55:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:33,592 INFO L93 Difference]: Finished difference Result 2048 states and 2778 transitions. [2024-11-20 14:55:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:55:33,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2024-11-20 14:55:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:33,600 INFO L225 Difference]: With dead ends: 2048 [2024-11-20 14:55:33,600 INFO L226 Difference]: Without dead ends: 2048 [2024-11-20 14:55:33,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:33,601 INFO L432 NwaCegarLoop]: 1070 mSDtfsCounter, 752 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:33,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2348 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 14:55:33,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2024-11-20 14:55:33,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1819. [2024-11-20 14:55:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7008064516129033) internal successors, (2109), 1464 states have internal predecessors, (2109), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-20 14:55:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2643 transitions. [2024-11-20 14:55:33,631 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2643 transitions. Word has length 81 [2024-11-20 14:55:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:33,631 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2643 transitions. [2024-11-20 14:55:33,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 14:55:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2643 transitions. [2024-11-20 14:55:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 14:55:33,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:33,632 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:33,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 14:55:33,633 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr115REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:33,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:33,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499241, now seen corresponding path program 1 times [2024-11-20 14:55:33,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:33,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567716880] [2024-11-20 14:55:33,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:33,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 14:55:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 14:55:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:35,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:35,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567716880] [2024-11-20 14:55:35,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567716880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:35,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:35,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 14:55:35,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542025655] [2024-11-20 14:55:35,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:35,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 14:55:35,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:35,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 14:55:35,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:55:35,374 INFO L87 Difference]: Start difference. First operand 1819 states and 2643 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 14:55:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:35,938 INFO L93 Difference]: Finished difference Result 1446 states and 2035 transitions. [2024-11-20 14:55:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:55:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2024-11-20 14:55:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:35,943 INFO L225 Difference]: With dead ends: 1446 [2024-11-20 14:55:35,943 INFO L226 Difference]: Without dead ends: 1441 [2024-11-20 14:55:35,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:55:35,944 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 138 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:35,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3306 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 14:55:35,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-20 14:55:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1415. [2024-11-20 14:55:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 942 states have (on average 1.7101910828025477) internal successors, (1611), 1153 states have internal predecessors, (1611), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-20 14:55:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1995 transitions. [2024-11-20 14:55:35,964 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1995 transitions. Word has length 81 [2024-11-20 14:55:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:35,964 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1995 transitions. [2024-11-20 14:55:35,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 14:55:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1995 transitions. [2024-11-20 14:55:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 14:55:35,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:35,965 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:35,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 14:55:35,965 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:35,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403802, now seen corresponding path program 1 times [2024-11-20 14:55:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:35,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691021307] [2024-11-20 14:55:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:35,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 14:55:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 14:55:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:38,715 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-20 14:55:38,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:38,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691021307] [2024-11-20 14:55:38,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691021307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:38,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969347746] [2024-11-20 14:55:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:38,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:38,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:55:38,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:55:38,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 14:55:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 5879 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 14:55:41,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:41,402 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-20 14:55:41,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-20 14:55:41,444 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-20 14:55:41,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 14:55:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-20 14:55:41,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:41,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969347746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:41,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:55:41,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 6 [2024-11-20 14:55:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314939343] [2024-11-20 14:55:41,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:41,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 14:55:41,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 14:55:41,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 14:55:41,506 INFO L87 Difference]: Start difference. First operand 1415 states and 1995 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:55:42,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:42,986 INFO L93 Difference]: Finished difference Result 1617 states and 2042 transitions. [2024-11-20 14:55:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 14:55:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2024-11-20 14:55:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:42,991 INFO L225 Difference]: With dead ends: 1617 [2024-11-20 14:55:42,991 INFO L226 Difference]: Without dead ends: 1617 [2024-11-20 14:55:42,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-20 14:55:42,992 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 932 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:42,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2674 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 14:55:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-20 14:55:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1414. [2024-11-20 14:55:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 942 states have (on average 1.7091295116772824) internal successors, (1610), 1152 states have internal predecessors, (1610), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-20 14:55:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1994 transitions. [2024-11-20 14:55:43,017 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1994 transitions. Word has length 84 [2024-11-20 14:55:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:43,018 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1994 transitions. [2024-11-20 14:55:43,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:55:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1994 transitions. [2024-11-20 14:55:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 14:55:43,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:43,019 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:43,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 14:55:43,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 14:55:43,220 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:43,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403803, now seen corresponding path program 1 times [2024-11-20 14:55:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:43,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735717014] [2024-11-20 14:55:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:43,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms