./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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-?-c7c6ca5-m [2024-11-09 08:00:28,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 08:00:28,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 08:00:28,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 08:00:28,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 08:00:28,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 08:00:28,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 08:00:28,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 08:00:28,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 08:00:28,330 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 08:00:28,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 08:00:28,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 08:00:28,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 08:00:28,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 08:00:28,331 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 08:00:28,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 08:00:28,333 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 08:00:28,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 08:00:28,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 08:00:28,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 08:00:28,334 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 08:00:28,334 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 08:00:28,335 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 08:00:28,335 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 08:00:28,335 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 08:00:28,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 08:00:28,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 08:00:28,336 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 08:00:28,336 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 08:00:28,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 08:00:28,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 08:00:28,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 08:00:28,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 08:00:28,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 08:00:28,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 08:00:28,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 08:00:28,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 08:00:28,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 08:00:28,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 08:00:28,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 08:00:28,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 08:00:28,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 08:00:28,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 [2024-11-09 08:00:28,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 08:00:28,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 08:00:28,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 08:00:28,543 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 08:00:28,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 08:00:28,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-09 08:00:29,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 08:00:30,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 08:00:30,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-09 08:00:30,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e82f0596/3eb76ee323ab4527971f24ad63ffdbdd/FLAG86ac69b59 [2024-11-09 08:00:30,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e82f0596/3eb76ee323ab4527971f24ad63ffdbdd [2024-11-09 08:00:30,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 08:00:30,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 08:00:30,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 08:00:30,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 08:00:30,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 08:00:30,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:00:30" (1/1) ... [2024-11-09 08:00:30,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f99784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:30, skipping insertion in model container [2024-11-09 08:00:30,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:00:30" (1/1) ... [2024-11-09 08:00:30,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 08:00:30,845 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:00:30,865 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:00:30,877 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:00:30,923 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:00:30,945 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:00:30,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 08:00:30,996 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 08:00:31,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 08:00:31,292 INFO L204 MainTranslator]: Completed translation [2024-11-09 08:00:31,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31 WrapperNode [2024-11-09 08:00:31,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 08:00:31,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 08:00:31,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 08:00:31,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 08:00:31,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,472 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-09 08:00:31,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 08:00:31,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 08:00:31,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 08:00:31,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 08:00:31,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,605 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 35, 1040, 480, 3, 59, 35, 11, 5, 15, 120, 67, 16, 2, 0, 20, 4, 2, 18, 2, 2, 12, 37, 34, 5, 5]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 3, 15, 1040, 480, 0, 59, 32, 2, 1, 10, 120, 67, 5, 2, 0, 4, 4, 0, 18, 0, 0, 6, 25, 34, 1, 4]. The 37 writes are split as follows [0, 0, 6, 0, 0, 0, 0, 0, 5, 1, 2, 0, 0, 8, 0, 0, 4, 0, 0, 0, 1, 2, 6, 0, 0, 2, 0]. [2024-11-09 08:00:31,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,606 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 08:00:31,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 08:00:31,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 08:00:31,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 08:00:31,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (1/1) ... [2024-11-09 08:00:31,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 08:00:31,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:00:31,771 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) [2024-11-09 08:00:31,773 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 [2024-11-09 08:00:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-09 08:00:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-09 08:00:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 08:00:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-09 08:00:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 08:00:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 08:00:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 08:00:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 08:00:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 08:00:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-09 08:00:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 08:00:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 08:00:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 08:00:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 08:00:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 08:00:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-09 08:00:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 08:00:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-09 08:00:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 08:00:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-09 08:00:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-09 08:00:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-09 08:00:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-09 08:00:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-09 08:00:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 08:00:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-09 08:00:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-09 08:00:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-09 08:00:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 08:00:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 08:00:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-09 08:00:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 08:00:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-09 08:00:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-09 08:00:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-09 08:00:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-09 08:00:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-09 08:00:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-09 08:00:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-09 08:00:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 08:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 08:00:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-09 08:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-09 08:00:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 08:00:31,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 08:00:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-09 08:00:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-09 08:00:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-09 08:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-09 08:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-09 08:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-09 08:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-09 08:00:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-09 08:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-09 08:00:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 08:00:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-09 08:00:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 08:00:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-09 08:00:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-09 08:00:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-09 08:00:31,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-09 08:00:31,825 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 08:00:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-09 08:00:31,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-09 08:00:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-09 08:00:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-09 08:00:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-09 08:00:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-09 08:00:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-09 08:00:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-09 08:00:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 08:00:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 08:00:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 08:00:31,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-09 08:00:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-09 08:00:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-09 08:00:32,254 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 08:00:32,257 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 08:00:35,672 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-09 08:00:35,672 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 08:00:35,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 08:00:35,717 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 08:00:35,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:00:35 BoogieIcfgContainer [2024-11-09 08:00:35,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 08:00:35,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 08:00:35,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 08:00:35,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 08:00:35,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:00:30" (1/3) ... [2024-11-09 08:00:35,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3d0edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:00:35, skipping insertion in model container [2024-11-09 08:00:35,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:31" (2/3) ... [2024-11-09 08:00:35,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3d0edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:00:35, skipping insertion in model container [2024-11-09 08:00:35,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:00:35" (3/3) ... [2024-11-09 08:00:35,729 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb.i [2024-11-09 08:00:35,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 08:00:35,743 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-09 08:00:35,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 08:00:35,796 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;@325630ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 08:00:35,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-09 08:00:35,802 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) [2024-11-09 08:00:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 08:00:35,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:00:35,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 08:00:35,808 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)] === [2024-11-09 08:00:35,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:00:35,813 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-09 08:00:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:00:35,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226461932] [2024-11-09 08:00:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:00:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:38,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:00:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226461932] [2024-11-09 08:00:38,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226461932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:00:38,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:00:38,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:00:38,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959319273] [2024-11-09 08:00:38,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:00:38,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:00:38,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:00:38,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:00:38,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:00:38,630 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) [2024-11-09 08:00:39,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:00:39,742 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-09 08:00:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:00:39,748 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 [2024-11-09 08:00:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:00:39,762 INFO L225 Difference]: With dead ends: 1270 [2024-11-09 08:00:39,762 INFO L226 Difference]: Without dead ends: 1266 [2024-11-09 08:00:39,763 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 [2024-11-09 08:00:39,768 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 08:00:39,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 08:00:39,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-09 08:00:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-09 08:00:39,865 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) [2024-11-09 08:00:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-09 08:00:39,872 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-09 08:00:39,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:00:39,873 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-09 08:00:39,873 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) [2024-11-09 08:00:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-09 08:00:39,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 08:00:39,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:00:39,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 08:00:39,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 08:00:39,874 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)] === [2024-11-09 08:00:39,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:00:39,874 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-09 08:00:39,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:00:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331368420] [2024-11-09 08:00:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:39,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:00:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:42,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:00:42,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331368420] [2024-11-09 08:00:42,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331368420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:00:42,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:00:42,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:00:42,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146004511] [2024-11-09 08:00:42,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:00:42,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:00:42,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:00:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:00:42,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:00:42,580 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) [2024-11-09 08:00:43,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:00:43,378 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-09 08:00:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:00:43,379 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 [2024-11-09 08:00:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:00:43,385 INFO L225 Difference]: With dead ends: 1193 [2024-11-09 08:00:43,385 INFO L226 Difference]: Without dead ends: 1193 [2024-11-09 08:00:43,386 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 [2024-11-09 08:00:43,386 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 08:00:43,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 08:00:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-09 08:00:43,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-09 08:00:43,438 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) [2024-11-09 08:00:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-09 08:00:43,444 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-09 08:00:43,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:00:43,445 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-09 08:00:43,445 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) [2024-11-09 08:00:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-09 08:00:43,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 08:00:43,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:00:43,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:00:43,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 08:00:43,446 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)] === [2024-11-09 08:00:43,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:00:43,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-09 08:00:43,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:00:43,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853241032] [2024-11-09 08:00:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:00:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:45,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:00:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:45,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:00:45,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853241032] [2024-11-09 08:00:45,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853241032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:00:45,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:00:45,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:00:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866743048] [2024-11-09 08:00:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:00:45,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:00:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:00:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:00:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:00:45,472 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) [2024-11-09 08:00:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:00:46,536 INFO L93 Difference]: Finished difference Result 1360 states and 1649 transitions. [2024-11-09 08:00:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:00:46,537 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 [2024-11-09 08:00:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:00:46,541 INFO L225 Difference]: With dead ends: 1360 [2024-11-09 08:00:46,541 INFO L226 Difference]: Without dead ends: 1360 [2024-11-09 08:00:46,542 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 [2024-11-09 08:00:46,542 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 868 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 08:00:46,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1529 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 08:00:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-09 08:00:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1133. [2024-11-09 08:00:46,568 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) [2024-11-09 08:00:46,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-09 08:00:46,574 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-09 08:00:46,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:00:46,575 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-09 08:00:46,575 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) [2024-11-09 08:00:46,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-09 08:00:46,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 08:00:46,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:00:46,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:00:46,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 08:00:46,577 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)] === [2024-11-09 08:00:46,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:00:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-09 08:00:46,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:00:46,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807229072] [2024-11-09 08:00:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:46,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:00:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:48,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:00:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:48,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:00:48,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807229072] [2024-11-09 08:00:48,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807229072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:00:48,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:00:48,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:00:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124444796] [2024-11-09 08:00:48,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:00:48,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:00:48,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:00:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:00:48,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:00:48,890 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) [2024-11-09 08:00:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:00:49,846 INFO L93 Difference]: Finished difference Result 1217 states and 1572 transitions. [2024-11-09 08:00:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 08:00:49,847 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 [2024-11-09 08:00:49,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:00:49,851 INFO L225 Difference]: With dead ends: 1217 [2024-11-09 08:00:49,851 INFO L226 Difference]: Without dead ends: 1217 [2024-11-09 08:00:49,851 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 [2024-11-09 08:00:49,852 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 [2024-11-09 08:00:49,852 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] [2024-11-09 08:00:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-09 08:00:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1136. [2024-11-09 08:00:49,880 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) [2024-11-09 08:00:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-09 08:00:49,884 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-09 08:00:49,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:00:49,884 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-09 08:00:49,885 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) [2024-11-09 08:00:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-09 08:00:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 08:00:49,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:00:49,885 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:00:49,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 08:00:49,886 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)] === [2024-11-09 08:00:49,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:00:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-09 08:00:49,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:00:49,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324076009] [2024-11-09 08:00:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:49,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:00:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:52,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:00:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:52,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:00:52,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324076009] [2024-11-09 08:00:52,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324076009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:00:52,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393540329] [2024-11-09 08:00:52,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:52,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:00:52,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:00:52,097 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) [2024-11-09 08:00:52,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 08:00:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:54,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 08:00:54,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:00:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:54,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:00:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:00:54,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393540329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 08:00:54,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 08:00:54,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-09 08:00:54,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525544964] [2024-11-09 08:00:54,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 08:00:54,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 08:00:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:00:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 08:00:54,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 08:00:54,669 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) [2024-11-09 08:00:57,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:00:57,226 INFO L93 Difference]: Finished difference Result 1437 states and 1816 transitions. [2024-11-09 08:00:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 08:00:57,226 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 [2024-11-09 08:00:57,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:00:57,231 INFO L225 Difference]: With dead ends: 1437 [2024-11-09 08:00:57,231 INFO L226 Difference]: Without dead ends: 1437 [2024-11-09 08:00:57,231 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 [2024-11-09 08:00:57,232 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 882 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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 [2024-11-09 08:00:57,232 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] [2024-11-09 08:00:57,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-09 08:00:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1289. [2024-11-09 08:00:57,255 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) [2024-11-09 08:00:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-09 08:00:57,258 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-09 08:00:57,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:00:57,259 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-09 08:00:57,259 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) [2024-11-09 08:00:57,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-09 08:00:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 08:00:57,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:00:57,260 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:00:57,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 08:00:57,460 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 [2024-11-09 08:00:57,461 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)] === [2024-11-09 08:00:57,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:00:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-09 08:00:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:00:57,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515196979] [2024-11-09 08:00:57,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:00:57,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:00:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:59,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:00:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:00:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 08:00:59,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:00:59,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515196979] [2024-11-09 08:00:59,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515196979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:00:59,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:00:59,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:00:59,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522963447] [2024-11-09 08:00:59,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:00:59,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:00:59,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:00:59,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:00:59,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:00:59,446 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) [2024-11-09 08:01:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:00,351 INFO L93 Difference]: Finished difference Result 1521 states and 1891 transitions. [2024-11-09 08:01:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:01:00,351 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 [2024-11-09 08:01:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:00,356 INFO L225 Difference]: With dead ends: 1521 [2024-11-09 08:01:00,356 INFO L226 Difference]: Without dead ends: 1521 [2024-11-09 08:01:00,356 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 [2024-11-09 08:01:00,357 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 853 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2024-11-09 08:01:00,358 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] [2024-11-09 08:01:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-09 08:01:00,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1287. [2024-11-09 08:01:00,381 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) [2024-11-09 08:01:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-09 08:01:00,385 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-09 08:01:00,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:00,385 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-09 08:01:00,386 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) [2024-11-09 08:01:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-09 08:01:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 08:01:00,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:00,386 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:01:00,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 08:01:00,387 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)] === [2024-11-09 08:01:00,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-09 08:01:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934533131] [2024-11-09 08:01:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:02,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:02,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:02,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934533131] [2024-11-09 08:01:02,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934533131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:02,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887379240] [2024-11-09 08:01:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:02,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:02,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:02,423 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) [2024-11-09 08:01:02,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 08:01:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:04,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 08:01:04,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:01:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:04,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:01:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:04,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887379240] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 08:01:04,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 08:01:04,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-09 08:01:04,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577548806] [2024-11-09 08:01:04,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 08:01:04,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 08:01:04,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:04,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 08:01:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-09 08:01:04,743 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) [2024-11-09 08:01:05,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:05,265 INFO L93 Difference]: Finished difference Result 1329 states and 1807 transitions. [2024-11-09 08:01:05,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 08:01:05,266 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 [2024-11-09 08:01:05,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:05,270 INFO L225 Difference]: With dead ends: 1329 [2024-11-09 08:01:05,270 INFO L226 Difference]: Without dead ends: 1329 [2024-11-09 08:01:05,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-09 08:01:05,270 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 [2024-11-09 08:01:05,271 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] [2024-11-09 08:01:05,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-09 08:01:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1305. [2024-11-09 08:01:05,290 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) [2024-11-09 08:01:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-09 08:01:05,294 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-09 08:01:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:05,294 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-09 08:01:05,294 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) [2024-11-09 08:01:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-09 08:01:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 08:01:05,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:05,295 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:01:05,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 08:01:05,495 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 [2024-11-09 08:01:05,496 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)] === [2024-11-09 08:01:05,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-09 08:01:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198658943] [2024-11-09 08:01:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:07,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 08:01:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:07,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198658943] [2024-11-09 08:01:07,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198658943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:07,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:07,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:01:07,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71580070] [2024-11-09 08:01:07,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:07,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:01:07,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:01:07,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:01:07,598 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) [2024-11-09 08:01:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:08,421 INFO L93 Difference]: Finished difference Result 1385 states and 1819 transitions. [2024-11-09 08:01:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 08:01:08,422 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 [2024-11-09 08:01:08,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:08,425 INFO L225 Difference]: With dead ends: 1385 [2024-11-09 08:01:08,425 INFO L226 Difference]: Without dead ends: 1385 [2024-11-09 08:01:08,425 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 [2024-11-09 08:01:08,426 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:08,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1860 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 08:01:08,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-09 08:01:08,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1303. [2024-11-09 08:01:08,441 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) [2024-11-09 08:01:08,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-09 08:01:08,446 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-09 08:01:08,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:08,447 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-09 08:01:08,448 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) [2024-11-09 08:01:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-09 08:01:08,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 08:01:08,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:08,450 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] [2024-11-09 08:01:08,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 08:01:08,451 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)] === [2024-11-09 08:01:08,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:08,451 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-09 08:01:08,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:08,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161381831] [2024-11-09 08:01:08,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:08,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:10,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:10,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:10,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:10,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:01:10,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:10,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161381831] [2024-11-09 08:01:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161381831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:10,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:01:10,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286558073] [2024-11-09 08:01:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:10,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:01:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:10,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:01:10,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:01:10,407 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) [2024-11-09 08:01:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:10,806 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2024-11-09 08:01:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 08:01:10,806 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 [2024-11-09 08:01:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:10,810 INFO L225 Difference]: With dead ends: 1326 [2024-11-09 08:01:10,810 INFO L226 Difference]: Without dead ends: 1326 [2024-11-09 08:01:10,810 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 [2024-11-09 08:01:10,812 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 [2024-11-09 08:01:10,813 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] [2024-11-09 08:01:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-09 08:01:10,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2024-11-09 08:01:10,830 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) [2024-11-09 08:01:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-09 08:01:10,833 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-09 08:01:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:10,834 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-09 08:01:10,834 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) [2024-11-09 08:01:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-09 08:01:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 08:01:10,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:10,836 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] [2024-11-09 08:01:10,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 08:01:10,836 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)] === [2024-11-09 08:01:10,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:10,837 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-09 08:01:10,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:10,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382201812] [2024-11-09 08:01:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:10,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:12,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:12,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:12,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:12,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:01:12,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382201812] [2024-11-09 08:01:12,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382201812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:12,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:12,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:01:12,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751188414] [2024-11-09 08:01:12,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:12,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:01:12,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:12,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:01:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:01:12,832 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) [2024-11-09 08:01:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:13,498 INFO L93 Difference]: Finished difference Result 1325 states and 1801 transitions. [2024-11-09 08:01:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 08:01:13,498 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 [2024-11-09 08:01:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:13,503 INFO L225 Difference]: With dead ends: 1325 [2024-11-09 08:01:13,503 INFO L226 Difference]: Without dead ends: 1325 [2024-11-09 08:01:13,503 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 [2024-11-09 08:01:13,504 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 139 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2024-11-09 08:01:13,505 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] [2024-11-09 08:01:13,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-09 08:01:13,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1301. [2024-11-09 08:01:13,520 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) [2024-11-09 08:01:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-09 08:01:13,528 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-09 08:01:13,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:13,529 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-09 08:01:13,529 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) [2024-11-09 08:01:13,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-09 08:01:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 08:01:13,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:13,530 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] [2024-11-09 08:01:13,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 08:01:13,530 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)] === [2024-11-09 08:01:13,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:13,530 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-09 08:01:13,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:13,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279228412] [2024-11-09 08:01:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:13,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:15,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:15,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:15,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:01:15,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279228412] [2024-11-09 08:01:15,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279228412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:15,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:15,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:01:15,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32571398] [2024-11-09 08:01:15,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:15,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:01:15,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:15,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:01:15,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:01:15,930 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) [2024-11-09 08:01:16,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:16,674 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2024-11-09 08:01:16,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:01:16,674 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 [2024-11-09 08:01:16,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:16,679 INFO L225 Difference]: With dead ends: 1324 [2024-11-09 08:01:16,679 INFO L226 Difference]: Without dead ends: 1324 [2024-11-09 08:01:16,679 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 [2024-11-09 08:01:16,680 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 [2024-11-09 08:01:16,680 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] [2024-11-09 08:01:16,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-09 08:01:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1300. [2024-11-09 08:01:16,698 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) [2024-11-09 08:01:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-09 08:01:16,701 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-09 08:01:16,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:16,702 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-09 08:01:16,702 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) [2024-11-09 08:01:16,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-09 08:01:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 08:01:16,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:16,703 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] [2024-11-09 08:01:16,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 08:01:16,704 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)] === [2024-11-09 08:01:16,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:16,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-09 08:01:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:16,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821481814] [2024-11-09 08:01:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:16,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:18,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:18,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:18,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:18,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:18,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 08:01:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:18,714 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:01:18,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:18,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821481814] [2024-11-09 08:01:18,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821481814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:18,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:18,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:01:18,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508175855] [2024-11-09 08:01:18,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:18,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:01:18,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:18,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:01:18,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:01:18,716 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) [2024-11-09 08:01:19,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:19,330 INFO L93 Difference]: Finished difference Result 1365 states and 1809 transitions. [2024-11-09 08:01:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 08:01:19,330 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 [2024-11-09 08:01:19,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:19,335 INFO L225 Difference]: With dead ends: 1365 [2024-11-09 08:01:19,335 INFO L226 Difference]: Without dead ends: 1352 [2024-11-09 08:01:19,335 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 [2024-11-09 08:01:19,336 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 [2024-11-09 08:01:19,336 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] [2024-11-09 08:01:19,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-09 08:01:19,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1295. [2024-11-09 08:01:19,356 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) [2024-11-09 08:01:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-09 08:01:19,358 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-09 08:01:19,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:19,359 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-09 08:01:19,359 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) [2024-11-09 08:01:19,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-09 08:01:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 08:01:19,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:19,360 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] [2024-11-09 08:01:19,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 08:01:19,360 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)] === [2024-11-09 08:01:19,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-09 08:01:19,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:19,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451215266] [2024-11-09 08:01:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:21,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:21,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:21,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:21,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 08:01:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:01:21,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:21,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451215266] [2024-11-09 08:01:21,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451215266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:21,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105017833] [2024-11-09 08:01:21,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:21,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:21,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:21,917 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) [2024-11-09 08:01:21,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 08:01:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:24,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 08:01:24,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:01:24,638 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-09 08:01:24,638 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 [2024-11-09 08:01:24,663 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 [2024-11-09 08:01:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:01:24,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:01:24,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105017833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:24,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 08:01:24,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-09 08:01:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590911789] [2024-11-09 08:01:24,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 08:01:24,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 08:01:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:24,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 08:01:24,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-09 08:01:24,719 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) [2024-11-09 08:01:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:26,649 INFO L93 Difference]: Finished difference Result 1890 states and 2482 transitions. [2024-11-09 08:01:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 08:01:26,649 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 [2024-11-09 08:01:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:26,654 INFO L225 Difference]: With dead ends: 1890 [2024-11-09 08:01:26,654 INFO L226 Difference]: Without dead ends: 1890 [2024-11-09 08:01:26,654 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 [2024-11-09 08:01:26,655 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, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:26,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4025 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 08:01:26,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-09 08:01:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1634. [2024-11-09 08:01:26,675 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) [2024-11-09 08:01:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-09 08:01:26,678 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-09 08:01:26,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:26,678 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-09 08:01:26,679 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) [2024-11-09 08:01:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-09 08:01:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 08:01:26,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:26,679 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] [2024-11-09 08:01:26,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 08:01:26,880 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 [2024-11-09 08:01:26,880 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)] === [2024-11-09 08:01:26,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:26,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-09 08:01:26,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:26,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465572925] [2024-11-09 08:01:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:26,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:29,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:29,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:29,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:29,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:29,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 08:01:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:01:29,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:29,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465572925] [2024-11-09 08:01:29,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465572925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:29,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754616037] [2024-11-09 08:01:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:29,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:29,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:29,710 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) [2024-11-09 08:01:29,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 08:01:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:32,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 08:01:32,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:01:32,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 08:01:32,625 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 [2024-11-09 08:01:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:01:32,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:01:32,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754616037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:32,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 08:01:32,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2024-11-09 08:01:32,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899587872] [2024-11-09 08:01:32,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 08:01:32,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 08:01:32,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 08:01:32,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-09 08:01:32,868 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) [2024-11-09 08:01:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:35,514 INFO L93 Difference]: Finished difference Result 2102 states and 2721 transitions. [2024-11-09 08:01:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 08:01:35,515 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 [2024-11-09 08:01:35,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:35,521 INFO L225 Difference]: With dead ends: 2102 [2024-11-09 08:01:35,521 INFO L226 Difference]: Without dead ends: 2102 [2024-11-09 08:01:35,521 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 [2024-11-09 08:01:35,521 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 [2024-11-09 08:01:35,522 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] [2024-11-09 08:01:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2024-11-09 08:01:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1819. [2024-11-09 08:01:35,541 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) [2024-11-09 08:01:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2646 transitions. [2024-11-09 08:01:35,545 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2646 transitions. Word has length 78 [2024-11-09 08:01:35,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:35,545 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2646 transitions. [2024-11-09 08:01:35,545 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) [2024-11-09 08:01:35,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2646 transitions. [2024-11-09 08:01:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 08:01:35,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:35,546 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] [2024-11-09 08:01:35,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 08:01:35,746 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 [2024-11-09 08:01:35,746 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)] === [2024-11-09 08:01:35,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:35,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499240, now seen corresponding path program 1 times [2024-11-09 08:01:35,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:35,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822259402] [2024-11-09 08:01:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:35,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 08:01:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 08:01:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:01:37,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:37,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822259402] [2024-11-09 08:01:37,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822259402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:37,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:37,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:01:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037060369] [2024-11-09 08:01:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:37,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:01:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:01:37,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:01:37,610 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) [2024-11-09 08:01:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:38,403 INFO L93 Difference]: Finished difference Result 2048 states and 2778 transitions. [2024-11-09 08:01:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:01:38,403 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 [2024-11-09 08:01:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:38,409 INFO L225 Difference]: With dead ends: 2048 [2024-11-09 08:01:38,409 INFO L226 Difference]: Without dead ends: 2048 [2024-11-09 08:01:38,409 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 [2024-11-09 08:01:38,410 INFO L432 NwaCegarLoop]: 1070 mSDtfsCounter, 752 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:38,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2348 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 08:01:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2024-11-09 08:01:38,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1819. [2024-11-09 08:01:38,432 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) [2024-11-09 08:01:38,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2643 transitions. [2024-11-09 08:01:38,435 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2643 transitions. Word has length 81 [2024-11-09 08:01:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:38,435 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2643 transitions. [2024-11-09 08:01:38,436 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) [2024-11-09 08:01:38,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2643 transitions. [2024-11-09 08:01:38,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 08:01:38,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:38,436 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] [2024-11-09 08:01:38,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 08:01:38,437 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)] === [2024-11-09 08:01:38,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:38,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499241, now seen corresponding path program 1 times [2024-11-09 08:01:38,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:38,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817110318] [2024-11-09 08:01:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:38,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 08:01:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 08:01:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:01:40,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:40,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817110318] [2024-11-09 08:01:40,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817110318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:40,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:40,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 08:01:40,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004873313] [2024-11-09 08:01:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:40,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 08:01:40,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:40,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 08:01:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 08:01:40,274 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) [2024-11-09 08:01:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:40,771 INFO L93 Difference]: Finished difference Result 1446 states and 2035 transitions. [2024-11-09 08:01:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 08:01:40,772 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 [2024-11-09 08:01:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:40,776 INFO L225 Difference]: With dead ends: 1446 [2024-11-09 08:01:40,776 INFO L226 Difference]: Without dead ends: 1441 [2024-11-09 08:01:40,776 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 [2024-11-09 08:01:40,776 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 138 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2024-11-09 08:01:40,777 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] [2024-11-09 08:01:40,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-09 08:01:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1415. [2024-11-09 08:01:40,793 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) [2024-11-09 08:01:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1995 transitions. [2024-11-09 08:01:40,796 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1995 transitions. Word has length 81 [2024-11-09 08:01:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:40,796 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1995 transitions. [2024-11-09 08:01:40,796 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) [2024-11-09 08:01:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1995 transitions. [2024-11-09 08:01:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 08:01:40,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:40,797 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] [2024-11-09 08:01:40,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 08:01:40,797 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)] === [2024-11-09 08:01:40,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:40,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403802, now seen corresponding path program 1 times [2024-11-09 08:01:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270280097] [2024-11-09 08:01:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:40,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 08:01:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 08:01:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 08:01:43,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:43,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270280097] [2024-11-09 08:01:43,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270280097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:43,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198820224] [2024-11-09 08:01:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:43,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:43,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:43,412 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) [2024-11-09 08:01:43,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 08:01:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:45,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 5879 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 08:01:45,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:01:46,157 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-09 08:01:46,158 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 [2024-11-09 08:01:46,193 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-09 08:01:46,193 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 [2024-11-09 08:01:46,213 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 08:01:46,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:01:46,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198820224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:46,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 08:01:46,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 6 [2024-11-09 08:01:46,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430340996] [2024-11-09 08:01:46,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 08:01:46,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 08:01:46,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:46,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 08:01:46,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-09 08:01:46,253 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) [2024-11-09 08:01:47,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:47,739 INFO L93 Difference]: Finished difference Result 1617 states and 2042 transitions. [2024-11-09 08:01:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 08:01:47,739 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 [2024-11-09 08:01:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:47,743 INFO L225 Difference]: With dead ends: 1617 [2024-11-09 08:01:47,743 INFO L226 Difference]: Without dead ends: 1617 [2024-11-09 08:01:47,744 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 [2024-11-09 08:01:47,744 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 [2024-11-09 08:01:47,744 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] [2024-11-09 08:01:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-09 08:01:47,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1414. [2024-11-09 08:01:47,759 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) [2024-11-09 08:01:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1994 transitions. [2024-11-09 08:01:47,761 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1994 transitions. Word has length 84 [2024-11-09 08:01:47,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:47,762 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1994 transitions. [2024-11-09 08:01:47,762 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) [2024-11-09 08:01:47,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1994 transitions. [2024-11-09 08:01:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 08:01:47,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:47,762 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] [2024-11-09 08:01:47,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 08:01:47,963 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 [2024-11-09 08:01:47,963 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)] === [2024-11-09 08:01:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403803, now seen corresponding path program 1 times [2024-11-09 08:01:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:47,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527816026] [2024-11-09 08:01:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:01:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:01:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:01:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 08:01:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 08:01:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 08:01:51,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:51,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527816026] [2024-11-09 08:01:51,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527816026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:51,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082300910] [2024-11-09 08:01:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:51,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:51,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:51,146 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 08:01:51,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process