./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.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 6e9935ba6b05a3c7e4f0c65d8e33bc471835cb8eb350ac893c3dd9a00ab8c4f5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:54:28,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:54:28,423 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 14:54:28,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:54:28,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:54:28,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:54:28,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:54:28,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:54:28,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:54:28,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:54:28,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:54:28,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:54:28,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:54:28,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:54:28,465 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:54:28,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:54:28,465 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:54:28,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:54:28,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:54:28,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:54:28,466 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:54:28,467 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:54:28,467 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 14:54:28,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:54:28,470 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:54:28,470 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:54:28,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:54:28,470 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:54:28,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:54:28,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:54:28,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:54:28,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:54:28,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:54:28,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:54:28,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:54:28,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:54:28,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:54:28,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:54:28,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:54:28,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:54:28,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:54:28,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:54:28,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e9935ba6b05a3c7e4f0c65d8e33bc471835cb8eb350ac893c3dd9a00ab8c4f5 [2024-11-20 14:54:28,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:54:28,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:54:28,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:54:28,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:54:28,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:54:28,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i [2024-11-20 14:54:30,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:54:30,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:54:30,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i [2024-11-20 14:54:30,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cefe5a3/199c01f8bdc64f28942aa0efd1a9bd8f/FLAG432b19d99 [2024-11-20 14:54:30,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cefe5a3/199c01f8bdc64f28942aa0efd1a9bd8f [2024-11-20 14:54:30,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:54:30,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:54:30,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:54:30,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:54:30,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:54:30,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:54:30" (1/1) ... [2024-11-20 14:54:30,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ff80a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:30, skipping insertion in model container [2024-11-20 14:54:30,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:54:30" (1/1) ... [2024-11-20 14:54:30,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:54:31,841 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:31,867 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:31,881 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:31,945 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:31,970 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:54:31,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:54:32,016 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:54:32,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:54:32,396 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:54:32,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32 WrapperNode [2024-11-20 14:54:32,397 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:54:32,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:54:32,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:54:32,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:54:32,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,631 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-20 14:54:32,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:54:32,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:54:32,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:54:32,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:54:32,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,747 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 2, 3, 35, 1040, 480, 59, 37, 35, 12, 11, 5, 15, 120, 67, 16, 2, 0, 3, 2, 20, 4, 2, 18, 5, 34, 5]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 0, 3, 15, 1040, 480, 59, 25, 32, 6, 2, 1, 10, 120, 67, 5, 0, 0, 0, 2, 4, 4, 0, 18, 4, 34, 1]. The 37 writes are split as follows [0, 1, 0, 6, 0, 0, 0, 0, 0, 6, 5, 1, 2, 0, 0, 8, 2, 0, 0, 0, 4, 0, 0, 0, 0, 0, 2]. [2024-11-20 14:54:32,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:54:32,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:54:32,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:54:32,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:54:32,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (1/1) ... [2024-11-20 14:54:32,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:54:32,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:54:32,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:54:32,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:54:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-20 14:54:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-20 14:54:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 14:54:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-20 14:54:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-20 14:54:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-20 14:54:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 14:54:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-20 14:54:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-20 14:54:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 14:54:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-20 14:54:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-20 14:54:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 14:54:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 14:54:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 14:54:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-20 14:54:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-20 14:54:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-20 14:54:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-20 14:54:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-20 14:54:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-20 14:54:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-20 14:54:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-20 14:54:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-20 14:54:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-20 14:54:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-20 14:54:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:54:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 14:54:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-20 14:54:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-20 14:54:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-20 14:54:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-20 14:54:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-20 14:54:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-20 14:54:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-20 14:54:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-20 14:54:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-20 14:54:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-20 14:54:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-20 14:54:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 14:54:33,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 14:54:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-20 14:54:33,051 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-20 14:54:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-20 14:54:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-20 14:54:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-20 14:54:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-20 14:54:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:54:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:54:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-20 14:54:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-20 14:54:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 14:54:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 14:54:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-20 14:54:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-20 14:54:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 14:54:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 14:54:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 14:54:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 14:54:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 14:54:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 14:54:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 14:54:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 14:54:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 14:54:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-20 14:54:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-20 14:54:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-20 14:54:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-20 14:54:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 14:54:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-20 14:54:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-20 14:54:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-20 14:54:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-20 14:54:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-20 14:54:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-20 14:54:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-20 14:54:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-20 14:54:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-20 14:54:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-20 14:54:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-20 14:54:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-20 14:54:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-20 14:54:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-20 14:54:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-20 14:54:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-20 14:54:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 14:54:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-20 14:54:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-20 14:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-20 14:54:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-20 14:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-20 14:54:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-20 14:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-20 14:54:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-20 14:54:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-20 14:54:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-20 14:54:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-20 14:54:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-20 14:54:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 14:54:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 14:54:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 14:54:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 14:54:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-20 14:54:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-20 14:54:33,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-20 14:54:33,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-20 14:54:33,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-20 14:54:33,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-20 14:54:33,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-20 14:54:33,471 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:54:33,474 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:54:38,402 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-20 14:54:38,403 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:54:38,459 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:54:38,459 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 14:54:38,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:54:38 BoogieIcfgContainer [2024-11-20 14:54:38,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:54:38,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:54:38,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:54:38,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:54:38,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:54:30" (1/3) ... [2024-11-20 14:54:38,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0128eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:54:38, skipping insertion in model container [2024-11-20 14:54:38,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:54:32" (2/3) ... [2024-11-20 14:54:38,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0128eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:54:38, skipping insertion in model container [2024-11-20 14:54:38,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:54:38" (3/3) ... [2024-11-20 14:54:38,472 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inl.i [2024-11-20 14:54:38,488 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:54:38,488 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-20 14:54:38,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:54:38,565 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;@57d10c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:54:38,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-20 14:54:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-20 14:54:38,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 14:54:38,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:38,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 14:54:38,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:38,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:38,588 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-20 14:54:38,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:38,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122142944] [2024-11-20 14:54:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:38,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:42,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122142944] [2024-11-20 14:54:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122142944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:42,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:42,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:42,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725216581] [2024-11-20 14:54:42,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:42,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:54:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:54:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:42,347 INFO L87 Difference]: Start difference. First operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:43,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:43,785 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-20 14:54:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:43,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 14:54:43,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:43,810 INFO L225 Difference]: With dead ends: 1270 [2024-11-20 14:54:43,810 INFO L226 Difference]: Without dead ends: 1266 [2024-11-20 14:54:43,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:54:43,817 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:43,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 14:54:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-20 14:54:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-20 14:54:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 660 states have (on average 1.7606060606060605) internal successors, (1162), 882 states have internal predecessors, (1162), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-20 14:54:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-20 14:54:43,952 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-20 14:54:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:43,953 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-20 14:54:43,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-20 14:54:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 14:54:43,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:43,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 14:54:43,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:54:43,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:43,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-20 14:54:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:43,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788226550] [2024-11-20 14:54:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:47,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:47,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788226550] [2024-11-20 14:54:47,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788226550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:47,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:47,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644652168] [2024-11-20 14:54:47,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:47,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:54:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:54:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:47,241 INFO L87 Difference]: Start difference. First operand 1053 states and 1438 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:48,288 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-20 14:54:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:48,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 14:54:48,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:48,296 INFO L225 Difference]: With dead ends: 1193 [2024-11-20 14:54:48,297 INFO L226 Difference]: Without dead ends: 1193 [2024-11-20 14:54:48,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:54:48,298 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:48,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 14:54:48,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-20 14:54:48,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-20 14:54:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 709 states have (on average 1.7249647390691114) internal successors, (1223), 932 states have internal predecessors, (1223), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-20 14:54:48,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-20 14:54:48,344 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-20 14:54:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:48,345 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-20 14:54:48,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:54:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-20 14:54:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 14:54:48,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:48,345 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:48,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 14:54:48,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:48,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:48,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-20 14:54:48,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:48,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888722971] [2024-11-20 14:54:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:48,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:50,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:50,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:50,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888722971] [2024-11-20 14:54:50,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888722971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:50,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:50,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:54:50,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024512771] [2024-11-20 14:54:50,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:50,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:54:50,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:50,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:54:50,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:54:50,807 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:52,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:52,139 INFO L93 Difference]: Finished difference Result 1360 states and 1649 transitions. [2024-11-20 14:54:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:54:52,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-20 14:54:52,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:52,147 INFO L225 Difference]: With dead ends: 1360 [2024-11-20 14:54:52,148 INFO L226 Difference]: Without dead ends: 1360 [2024-11-20 14:54:52,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:52,152 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 868 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:52,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1529 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 14:54:52,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-20 14:54:52,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1133. [2024-11-20 14:54:52,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 709 states have (on average 1.7179125528913963) internal successors, (1218), 931 states have internal predecessors, (1218), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-20 14:54:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-20 14:54:52,198 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-20 14:54:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:52,198 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-20 14:54:52,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:52,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-20 14:54:52,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 14:54:52,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:52,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:52,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 14:54:52,200 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:52,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-20 14:54:52,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:52,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249141823] [2024-11-20 14:54:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:54,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:54,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:54,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249141823] [2024-11-20 14:54:54,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249141823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:54:54,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:54:54,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:54:54,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353023222] [2024-11-20 14:54:54,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:54:54,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:54:54,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:54:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:54:54,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:54:54,814 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:56,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:54:56,111 INFO L93 Difference]: Finished difference Result 1217 states and 1572 transitions. [2024-11-20 14:54:56,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:54:56,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-20 14:54:56,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:54:56,125 INFO L225 Difference]: With dead ends: 1217 [2024-11-20 14:54:56,125 INFO L226 Difference]: Without dead ends: 1217 [2024-11-20 14:54:56,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:54:56,128 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 407 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:54:56,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1880 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 14:54:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-20 14:54:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1136. [2024-11-20 14:54:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 712 states have (on average 1.7148876404494382) internal successors, (1221), 934 states have internal predecessors, (1221), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-20 14:54:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-20 14:54:56,172 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-20 14:54:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:54:56,173 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-20 14:54:56,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:54:56,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-20 14:54:56,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 14:54:56,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:54:56,174 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:54:56,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 14:54:56,174 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:54:56,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:54:56,175 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-20 14:54:56,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:54:56,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839828835] [2024-11-20 14:54:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:56,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:54:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:58,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:54:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:54:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:54:59,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:54:59,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839828835] [2024-11-20 14:54:59,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839828835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:54:59,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861513364] [2024-11-20 14:54:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:54:59,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:54:59,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:54:59,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:54:59,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 14:55:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:01,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 14:55:01,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:02,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:02,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861513364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:55:02,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:55:02,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-20 14:55:02,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331840279] [2024-11-20 14:55:02,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:02,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 14:55:02,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:02,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 14:55:02,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 14:55:02,164 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:55:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:05,000 INFO L93 Difference]: Finished difference Result 1437 states and 1816 transitions. [2024-11-20 14:55:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 14:55:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-20 14:55:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:05,007 INFO L225 Difference]: With dead ends: 1437 [2024-11-20 14:55:05,007 INFO L226 Difference]: Without dead ends: 1437 [2024-11-20 14:55:05,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-20 14:55:05,008 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 882 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.6s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:05,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 4490 Invalid, 3568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-20 14:55:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-20 14:55:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1289. [2024-11-20 14:55:05,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 823 states have (on average 1.701093560145808) internal successors, (1400), 1046 states have internal predecessors, (1400), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-20 14:55:05,038 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-20 14:55:05,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:05,038 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-20 14:55:05,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:55:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-20 14:55:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-20 14:55:05,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:05,039 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:05,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 14:55:05,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:05,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:05,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-20 14:55:05,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:05,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181733093] [2024-11-20 14:55:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:05,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 14:55:07,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:07,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181733093] [2024-11-20 14:55:07,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181733093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:07,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:07,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:55:07,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098750437] [2024-11-20 14:55:07,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:07,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:07,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:07,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:07,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:07,228 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:08,319 INFO L93 Difference]: Finished difference Result 1521 states and 1891 transitions. [2024-11-20 14:55:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:55:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-20 14:55:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:08,326 INFO L225 Difference]: With dead ends: 1521 [2024-11-20 14:55:08,326 INFO L226 Difference]: Without dead ends: 1521 [2024-11-20 14:55:08,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:08,327 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 853 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:08,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1540 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 14:55:08,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-20 14:55:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1287. [2024-11-20 14:55:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 823 states have (on average 1.6901579586877278) internal successors, (1391), 1044 states have internal predecessors, (1391), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-20 14:55:08,359 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-20 14:55:08,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:08,360 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-20 14:55:08,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:08,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-20 14:55:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-20 14:55:08,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:08,362 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:08,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 14:55:08,362 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:08,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:08,363 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-20 14:55:08,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:08,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480848839] [2024-11-20 14:55:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:08,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:10,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480848839] [2024-11-20 14:55:10,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480848839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:10,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697916511] [2024-11-20 14:55:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:10,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:10,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:55:10,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:55:10,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 14:55:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:13,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 14:55:13,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:13,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:55:13,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697916511] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:55:13,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:55:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-20 14:55:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521354737] [2024-11-20 14:55:13,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:13,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 14:55:13,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 14:55:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:55:13,307 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:14,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:14,013 INFO L93 Difference]: Finished difference Result 1329 states and 1807 transitions. [2024-11-20 14:55:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 14:55:14,014 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-20 14:55:14,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:14,019 INFO L225 Difference]: With dead ends: 1329 [2024-11-20 14:55:14,019 INFO L226 Difference]: Without dead ends: 1329 [2024-11-20 14:55:14,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:55:14,020 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 151 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:14,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3294 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 14:55:14,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-20 14:55:14,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1305. [2024-11-20 14:55:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 841 states have (on average 1.6753864447086801) internal successors, (1409), 1062 states have internal predecessors, (1409), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-20 14:55:14,046 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-20 14:55:14,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:14,047 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-20 14:55:14,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:14,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-20 14:55:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 14:55:14,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:14,048 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:14,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 14:55:14,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-20 14:55:14,249 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:14,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-20 14:55:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:14,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547895157] [2024-11-20 14:55:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:16,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 14:55:16,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:16,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547895157] [2024-11-20 14:55:16,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547895157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:16,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:16,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:55:16,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582268927] [2024-11-20 14:55:16,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:16,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:55:16,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:16,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:55:16,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:16,617 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:17,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:17,645 INFO L93 Difference]: Finished difference Result 1385 states and 1819 transitions. [2024-11-20 14:55:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:55:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-11-20 14:55:17,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:17,649 INFO L225 Difference]: With dead ends: 1385 [2024-11-20 14:55:17,649 INFO L226 Difference]: Without dead ends: 1385 [2024-11-20 14:55:17,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:55:17,650 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 377 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:17,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1860 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 14:55:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-20 14:55:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1303. [2024-11-20 14:55:17,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 841 states have (on average 1.6730083234244946) internal successors, (1407), 1060 states have internal predecessors, (1407), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-20 14:55:17,678 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-20 14:55:17,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:17,679 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-20 14:55:17,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 14:55:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-20 14:55:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 14:55:17,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:17,681 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:17,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 14:55:17,681 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:17,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-20 14:55:17,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:17,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362670396] [2024-11-20 14:55:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:19,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:19,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:19,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:19,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:19,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:19,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362670396] [2024-11-20 14:55:19,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362670396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:19,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:19,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:55:19,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251109554] [2024-11-20 14:55:19,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:19,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:19,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:19,927 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:20,410 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2024-11-20 14:55:20,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:55:20,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-20 14:55:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:20,416 INFO L225 Difference]: With dead ends: 1326 [2024-11-20 14:55:20,416 INFO L226 Difference]: Without dead ends: 1326 [2024-11-20 14:55:20,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:20,417 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 883 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:20,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1274 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 14:55:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-20 14:55:20,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2024-11-20 14:55:20,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 840 states have (on average 1.6714285714285715) internal successors, (1404), 1059 states have internal predecessors, (1404), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-20 14:55:20,441 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-20 14:55:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:20,441 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-20 14:55:20,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-20 14:55:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 14:55:20,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:20,443 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:20,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 14:55:20,443 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:20,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:20,444 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-20 14:55:20,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:20,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25886880] [2024-11-20 14:55:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:20,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:22,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:22,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:22,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:22,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:22,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:22,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25886880] [2024-11-20 14:55:22,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25886880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:22,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:22,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:55:22,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678996944] [2024-11-20 14:55:22,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:22,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:22,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:22,608 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:55:23,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:23,282 INFO L93 Difference]: Finished difference Result 1325 states and 1801 transitions. [2024-11-20 14:55:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:55:23,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2024-11-20 14:55:23,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:23,289 INFO L225 Difference]: With dead ends: 1325 [2024-11-20 14:55:23,289 INFO L226 Difference]: Without dead ends: 1325 [2024-11-20 14:55:23,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:23,290 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:23,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1769 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 14:55:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-20 14:55:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1301. [2024-11-20 14:55:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 840 states have (on average 1.6702380952380953) internal successors, (1403), 1058 states have internal predecessors, (1403), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-20 14:55:23,315 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-20 14:55:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:23,315 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-20 14:55:23,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-20 14:55:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-20 14:55:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 14:55:23,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:23,316 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:23,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 14:55:23,317 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:23,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-20 14:55:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:23,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262975555] [2024-11-20 14:55:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:26,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:26,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:26,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:26,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 14:55:26,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:26,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262975555] [2024-11-20 14:55:26,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262975555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:26,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:26,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:55:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558048478] [2024-11-20 14:55:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:26,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:55:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:55:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:55:26,096 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:26,951 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2024-11-20 14:55:26,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:55:26,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-11-20 14:55:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:26,955 INFO L225 Difference]: With dead ends: 1324 [2024-11-20 14:55:26,956 INFO L226 Difference]: Without dead ends: 1324 [2024-11-20 14:55:26,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:55:26,956 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 878 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:26,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1759 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 14:55:26,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-20 14:55:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1300. [2024-11-20 14:55:26,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 840 states have (on average 1.6690476190476191) internal successors, (1402), 1057 states have internal predecessors, (1402), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-20 14:55:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-20 14:55:26,980 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-20 14:55:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:26,982 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-20 14:55:26,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:55:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-20 14:55:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 14:55:26,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:26,984 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:26,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 14:55:26,984 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr164ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:26,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:26,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-20 14:55:26,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:26,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208729391] [2024-11-20 14:55:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:26,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:28,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:28,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:28,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:28,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:28,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 14:55:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:28,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:28,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208729391] [2024-11-20 14:55:28,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208729391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:55:28,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:55:28,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:55:28,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431136000] [2024-11-20 14:55:28,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:55:28,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:55:28,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:28,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:55:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:28,933 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 14:55:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:29,840 INFO L93 Difference]: Finished difference Result 1365 states and 1809 transitions. [2024-11-20 14:55:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:55:29,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2024-11-20 14:55:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:29,846 INFO L225 Difference]: With dead ends: 1365 [2024-11-20 14:55:29,846 INFO L226 Difference]: Without dead ends: 1352 [2024-11-20 14:55:29,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:55:29,846 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 233 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:29,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1706 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 14:55:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-20 14:55:29,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1295. [2024-11-20 14:55:29,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 837 states have (on average 1.6702508960573477) internal successors, (1398), 1054 states have internal predecessors, (1398), 183 states have call successors, (183), 79 states have call predecessors, (183), 78 states have return successors, (181), 174 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-20 14:55:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-20 14:55:29,877 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-20 14:55:29,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:29,877 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-20 14:55:29,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 14:55:29,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-20 14:55:29,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 14:55:29,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:29,878 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:29,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 14:55:29,879 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:29,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:29,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-20 14:55:29,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:29,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321174561] [2024-11-20 14:55:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:29,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 14:55:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:32,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:32,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321174561] [2024-11-20 14:55:32,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321174561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:32,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395269820] [2024-11-20 14:55:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:32,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:55:32,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:55:32,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 14:55:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:35,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 14:55:35,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:55:35,760 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-20 14:55:35,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-20 14:55:35,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-20 14:55:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:35,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:55:35,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395269820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:35,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:55:35,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-20 14:55:35,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629649013] [2024-11-20 14:55:35,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:55:35,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 14:55:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:55:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 14:55:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 14:55:35,894 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-20 14:55:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:55:38,373 INFO L93 Difference]: Finished difference Result 1890 states and 2482 transitions. [2024-11-20 14:55:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 14:55:38,373 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2024-11-20 14:55:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:55:38,380 INFO L225 Difference]: With dead ends: 1890 [2024-11-20 14:55:38,380 INFO L226 Difference]: Without dead ends: 1890 [2024-11-20 14:55:38,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-20 14:55:38,381 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 942 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:55:38,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4025 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-20 14:55:38,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-20 14:55:38,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1634. [2024-11-20 14:55:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1097 states have (on average 1.6937101185050136) internal successors, (1858), 1325 states have internal predecessors, (1858), 241 states have call successors, (241), 101 states have call predecessors, (241), 100 states have return successors, (239), 225 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-20 14:55:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-20 14:55:38,415 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-20 14:55:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:55:38,415 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-20 14:55:38,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-20 14:55:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-20 14:55:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 14:55:38,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:55:38,417 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:55:38,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 14:55:38,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:38,618 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-20 14:55:38,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:55:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-20 14:55:38,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:55:38,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990613488] [2024-11-20 14:55:38,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:38,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:55:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 14:55:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 14:55:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 14:55:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 14:55:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 14:55:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:55:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 14:55:41,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:55:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990613488] [2024-11-20 14:55:41,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990613488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:55:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755196953] [2024-11-20 14:55:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:55:41,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:55:41,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:55:41,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 14:55:41,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process