./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 00:44:31,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 00:44:31,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 00:44:31,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 00:44:31,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 00:44:31,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 00:44:31,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 00:44:31,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 00:44:31,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 00:44:31,959 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 00:44:31,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 00:44:31,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 00:44:31,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 00:44:31,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 00:44:31,962 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 00:44:31,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 00:44:31,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 00:44:31,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 00:44:31,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 00:44:31,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 00:44:31,964 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 00:44:31,965 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 00:44:31,965 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 00:44:31,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 00:44:31,967 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 00:44:31,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 00:44:31,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 00:44:31,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 00:44:31,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 00:44:31,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 00:44:31,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 00:44:31,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 00:44:31,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 00:44:31,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:44:31,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 00:44:31,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 00:44:31,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 00:44:31,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 00:44:31,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 00:44:31,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 00:44:31,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 00:44:31,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 00:44:31,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2024-11-17 00:44:32,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 00:44:32,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 00:44:32,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 00:44:32,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 00:44:32,232 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 00:44:32,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2024-11-17 00:44:33,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 00:44:33,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 00:44:33,900 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2024-11-17 00:44:33,922 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c195411/1d2832550bdf4239be38283135402f3d/FLAG1aa60d9a0 [2024-11-17 00:44:34,205 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c195411/1d2832550bdf4239be38283135402f3d [2024-11-17 00:44:34,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 00:44:34,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 00:44:34,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 00:44:34,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 00:44:34,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 00:44:34,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:44:34" (1/1) ... [2024-11-17 00:44:34,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d5fde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:34, skipping insertion in model container [2024-11-17 00:44:34,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:44:34" (1/1) ... [2024-11-17 00:44:34,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 00:44:35,056 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:44:35,072 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:44:35,083 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:44:35,147 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:44:35,171 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:44:35,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:44:35,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 00:44:35,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:44:35,468 INFO L204 MainTranslator]: Completed translation [2024-11-17 00:44:35,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35 WrapperNode [2024-11-17 00:44:35,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 00:44:35,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 00:44:35,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 00:44:35,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 00:44:35,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,713 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3380 [2024-11-17 00:44:35,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 00:44:35,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 00:44:35,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 00:44:35,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 00:44:35,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,872 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 35, 1040, 480, 59, 35, 11, 5, 15, 120, 67, 2, 0, 2, 3, 12, 2, 20, 4, 2, 18, 16, 37, 34, 5, 5]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 3, 15, 1040, 480, 59, 32, 2, 1, 10, 120, 67, 0, 0, 0, 0, 6, 2, 4, 4, 0, 18, 5, 25, 34, 1, 4]. The 37 writes are split as follows [0, 0, 6, 0, 0, 0, 0, 5, 1, 2, 0, 0, 2, 0, 1, 0, 6, 0, 4, 0, 0, 0, 8, 0, 0, 2, 0]. [2024-11-17 00:44:35,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,955 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:35,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:36,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 00:44:36,024 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 00:44:36,024 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 00:44:36,025 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 00:44:36,025 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (1/1) ... [2024-11-17 00:44:36,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:44:36,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:44:36,062 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) [2024-11-17 00:44:36,071 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 [2024-11-17 00:44:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-17 00:44:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-17 00:44:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 00:44:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-17 00:44:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-17 00:44:36,105 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-17 00:44:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 00:44:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-17 00:44:36,105 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-17 00:44:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 00:44:36,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-17 00:44:36,106 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 00:44:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-17 00:44:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-17 00:44:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 00:44:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-17 00:44:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-17 00:44:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-17 00:44:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-17 00:44:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-17 00:44:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-17 00:44:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-17 00:44:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-17 00:44:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-17 00:44:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-17 00:44:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-17 00:44:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-17 00:44:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-17 00:44:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 00:44:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-17 00:44:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-17 00:44:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-17 00:44:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-17 00:44:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-17 00:44:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-17 00:44:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-17 00:44:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-17 00:44:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-17 00:44:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-17 00:44:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-17 00:44:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-17 00:44:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 00:44:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-17 00:44:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-17 00:44:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-17 00:44:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-17 00:44:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-17 00:44:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-17 00:44:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-17 00:44:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 00:44:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-17 00:44:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-17 00:44:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-17 00:44:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-17 00:44:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-17 00:44:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-17 00:44:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-17 00:44:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-17 00:44:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-17 00:44:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-17 00:44:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-17 00:44:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-17 00:44:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-17 00:44:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 00:44:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-17 00:44:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-17 00:44:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-17 00:44:36,472 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 00:44:36,474 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 00:44:36,726 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3245: havoc get_user_#t~nondet682#1; [2024-11-17 00:44:36,740 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1508: havoc #t~ret200; [2024-11-17 00:44:36,755 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1470: havoc #t~ret199#1; [2024-11-17 00:44:36,756 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3961: havoc inw_#t~nondet764#1; [2024-11-17 00:44:36,828 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3269: havoc copy_to_user_#t~nondet685#1; [2024-11-17 00:44:36,828 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3261: havoc put_user_#t~nondet684#1; [2024-11-17 00:44:36,923 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1705: havoc zf_open_#t~ret221#1; [2024-11-17 00:44:36,923 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4510: havoc test_and_set_bit_#t~bitwise806#1; [2024-11-17 00:44:39,920 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3504: havoc misc_register_#t~ret724#1; [2024-11-17 00:44:40,050 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-17 00:44:40,051 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 00:44:40,083 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 00:44:40,083 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 00:44:40,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:44:40 BoogieIcfgContainer [2024-11-17 00:44:40,087 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 00:44:40,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 00:44:40,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 00:44:40,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 00:44:40,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:44:34" (1/3) ... [2024-11-17 00:44:40,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a02f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:44:40, skipping insertion in model container [2024-11-17 00:44:40,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:44:35" (2/3) ... [2024-11-17 00:44:40,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a02f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:44:40, skipping insertion in model container [2024-11-17 00:44:40,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:44:40" (3/3) ... [2024-11-17 00:44:40,093 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb_p.i [2024-11-17 00:44:40,105 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 00:44:40,105 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-17 00:44:40,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 00:44:40,148 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;@196fe96a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 00:44:40,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-17 00:44:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 716 states, 406 states have (on average 1.7586206896551724) internal successors, (714), 617 states have internal predecessors, (714), 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) [2024-11-17 00:44:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-17 00:44:40,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:44:40,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 00:44:40,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:44:40,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:44:40,163 INFO L85 PathProgramCache]: Analyzing trace with hash 949622911, now seen corresponding path program 1 times [2024-11-17 00:44:40,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:44:40,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900626278] [2024-11-17 00:44:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:44:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:44:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:44:43,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:44:43,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900626278] [2024-11-17 00:44:43,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900626278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:44:43,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:44:43,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:44:43,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082599594] [2024-11-17 00:44:43,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:44:43,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:44:43,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:44:43,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:44:43,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:44:43,331 INFO L87 Difference]: Start difference. First operand has 716 states, 406 states have (on average 1.7586206896551724) internal successors, (714), 617 states have internal predecessors, (714), 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) [2024-11-17 00:44:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:44:44,579 INFO L93 Difference]: Finished difference Result 1293 states and 1557 transitions. [2024-11-17 00:44:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:44:44,581 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 [2024-11-17 00:44:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:44:44,594 INFO L225 Difference]: With dead ends: 1293 [2024-11-17 00:44:44,595 INFO L226 Difference]: Without dead ends: 1287 [2024-11-17 00:44:44,596 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 [2024-11-17 00:44:44,603 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 739 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:44:44,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 2443 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-17 00:44:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-11-17 00:44:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1073. [2024-11-17 00:44:44,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 680 states have (on average 1.738235294117647) internal successors, (1182), 902 states have internal predecessors, (1182), 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) [2024-11-17 00:44:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1458 transitions. [2024-11-17 00:44:44,683 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1458 transitions. Word has length 5 [2024-11-17 00:44:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:44:44,683 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1458 transitions. [2024-11-17 00:44:44,683 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) [2024-11-17 00:44:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1458 transitions. [2024-11-17 00:44:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-17 00:44:44,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:44:44,684 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 00:44:44,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 00:44:44,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:44:44,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:44:44,685 INFO L85 PathProgramCache]: Analyzing trace with hash 949622912, now seen corresponding path program 1 times [2024-11-17 00:44:44,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:44:44,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95784776] [2024-11-17 00:44:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:44:44,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:44:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:44:47,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:44:47,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95784776] [2024-11-17 00:44:47,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95784776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:44:47,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:44:47,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:44:47,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050330306] [2024-11-17 00:44:47,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:44:47,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:44:47,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:44:47,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:44:47,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:44:47,654 INFO L87 Difference]: Start difference. First operand 1073 states and 1458 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) [2024-11-17 00:44:48,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:44:48,546 INFO L93 Difference]: Finished difference Result 1216 states and 1564 transitions. [2024-11-17 00:44:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:44:48,547 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 [2024-11-17 00:44:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:44:48,552 INFO L225 Difference]: With dead ends: 1216 [2024-11-17 00:44:48,552 INFO L226 Difference]: Without dead ends: 1216 [2024-11-17 00:44:48,553 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 [2024-11-17 00:44:48,557 INFO L432 NwaCegarLoop]: 895 mSDtfsCounter, 286 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 00:44:48,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 2849 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 00:44:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-17 00:44:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1156. [2024-11-17 00:44:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 731 states have (on average 1.7031463748290014) internal successors, (1245), 954 states have internal predecessors, (1245), 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) [2024-11-17 00:44:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1559 transitions. [2024-11-17 00:44:48,597 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1559 transitions. Word has length 5 [2024-11-17 00:44:48,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:44:48,598 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1559 transitions. [2024-11-17 00:44:48,598 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) [2024-11-17 00:44:48,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1559 transitions. [2024-11-17 00:44:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-17 00:44:48,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:44:48,599 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:44:48,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 00:44:48,599 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr163REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:44:48,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:44:48,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1319618072, now seen corresponding path program 1 times [2024-11-17 00:44:48,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:44:48,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442438058] [2024-11-17 00:44:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:44:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:44:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:51,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:44:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:44:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:44:51,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442438058] [2024-11-17 00:44:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442438058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:44:51,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:44:51,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:44:51,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114322278] [2024-11-17 00:44:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:44:51,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:44:51,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:44:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:44:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:44:51,057 INFO L87 Difference]: Start difference. First operand 1156 states and 1559 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-17 00:44:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:44:52,243 INFO L93 Difference]: Finished difference Result 1383 states and 1672 transitions. [2024-11-17 00:44:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:44:52,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-11-17 00:44:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:44:52,250 INFO L225 Difference]: With dead ends: 1383 [2024-11-17 00:44:52,250 INFO L226 Difference]: Without dead ends: 1383 [2024-11-17 00:44:52,253 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 [2024-11-17 00:44:52,254 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 889 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:44:52,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1528 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-17 00:44:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-11-17 00:44:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1155. [2024-11-17 00:44:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 731 states have (on average 1.6963064295485637) internal successors, (1240), 953 states have internal predecessors, (1240), 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) [2024-11-17 00:44:52,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1554 transitions. [2024-11-17 00:44:52,292 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1554 transitions. Word has length 12 [2024-11-17 00:44:52,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:44:52,292 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1554 transitions. [2024-11-17 00:44:52,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-17 00:44:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1554 transitions. [2024-11-17 00:44:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-17 00:44:52,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:44:52,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:44:52,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 00:44:52,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr164REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:44:52,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:44:52,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1319618073, now seen corresponding path program 1 times [2024-11-17 00:44:52,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:44:52,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043180576] [2024-11-17 00:44:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:44:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:44:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:54,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:44:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:44:54,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:44:54,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043180576] [2024-11-17 00:44:54,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043180576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:44:54,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:44:54,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:44:54,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222918786] [2024-11-17 00:44:54,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:44:54,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:44:54,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:44:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:44:54,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:44:54,668 INFO L87 Difference]: Start difference. First operand 1155 states and 1554 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 00:44:55,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:44:55,639 INFO L93 Difference]: Finished difference Result 1242 states and 1597 transitions. [2024-11-17 00:44:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:44:55,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2024-11-17 00:44:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:44:55,643 INFO L225 Difference]: With dead ends: 1242 [2024-11-17 00:44:55,643 INFO L226 Difference]: Without dead ends: 1242 [2024-11-17 00:44:55,643 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 [2024-11-17 00:44:55,644 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 418 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-17 00:44:55,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1879 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-17 00:44:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-11-17 00:44:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1160. [2024-11-17 00:44:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 736 states have (on average 1.6915760869565217) internal successors, (1245), 958 states have internal predecessors, (1245), 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) [2024-11-17 00:44:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1559 transitions. [2024-11-17 00:44:55,668 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1559 transitions. Word has length 12 [2024-11-17 00:44:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:44:55,668 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1559 transitions. [2024-11-17 00:44:55,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 00:44:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1559 transitions. [2024-11-17 00:44:55,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 00:44:55,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:44:55,669 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:44:55,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 00:44:55,669 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr164REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:44:55,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:44:55,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1940318149, now seen corresponding path program 1 times [2024-11-17 00:44:55,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:44:55,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680635983] [2024-11-17 00:44:55,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:44:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:44:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:58,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:44:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:44:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:44:58,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:44:58,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680635983] [2024-11-17 00:44:58,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680635983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:44:58,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275586918] [2024-11-17 00:44:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:44:58,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:44:58,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:44:58,411 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) [2024-11-17 00:44:58,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 00:45:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:01,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 5482 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 00:45:01,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:45:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:45:01,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:45:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:45:01,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275586918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:45:01,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:45:01,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-17 00:45:01,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224468884] [2024-11-17 00:45:01,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:45:01,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 00:45:01,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:01,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 00:45:01,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-17 00:45:01,482 INFO L87 Difference]: Start difference. First operand 1160 states and 1559 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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) [2024-11-17 00:45:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:03,981 INFO L93 Difference]: Finished difference Result 1468 states and 1847 transitions. [2024-11-17 00:45:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 00:45:03,981 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 16 [2024-11-17 00:45:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:03,985 INFO L225 Difference]: With dead ends: 1468 [2024-11-17 00:45:03,986 INFO L226 Difference]: Without dead ends: 1468 [2024-11-17 00:45:03,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-17 00:45:03,986 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 909 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 4512 SdHoareTripleChecker+Invalid, 3684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:03,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 4512 Invalid, 3684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-17 00:45:03,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-17 00:45:04,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1318. [2024-11-17 00:45:04,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 852 states have (on average 1.6772300469483568) internal successors, (1429), 1075 states have internal predecessors, (1429), 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) [2024-11-17 00:45:04,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1797 transitions. [2024-11-17 00:45:04,009 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1797 transitions. Word has length 16 [2024-11-17 00:45:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:04,009 INFO L471 AbstractCegarLoop]: Abstraction has 1318 states and 1797 transitions. [2024-11-17 00:45:04,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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) [2024-11-17 00:45:04,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1797 transitions. [2024-11-17 00:45:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-17 00:45:04,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:04,010 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:04,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 00:45:04,214 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 [2024-11-17 00:45:04,216 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr161REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:04,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1470175370, now seen corresponding path program 1 times [2024-11-17 00:45:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:04,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596594405] [2024-11-17 00:45:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:04,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:06,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:45:06,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596594405] [2024-11-17 00:45:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596594405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272208288] [2024-11-17 00:45:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:06,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:45:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:45:06,527 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) [2024-11-17 00:45:06,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 00:45:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:09,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 5546 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 00:45:09,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:45:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:45:09,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:45:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:45:09,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272208288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:45:09,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:45:09,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-17 00:45:09,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573593960] [2024-11-17 00:45:09,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:45:09,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 00:45:09,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:09,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 00:45:09,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-17 00:45:09,493 INFO L87 Difference]: Start difference. First operand 1318 states and 1797 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 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) [2024-11-17 00:45:10,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:10,203 INFO L93 Difference]: Finished difference Result 1366 states and 1851 transitions. [2024-11-17 00:45:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 00:45:10,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 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 31 [2024-11-17 00:45:10,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:10,207 INFO L225 Difference]: With dead ends: 1366 [2024-11-17 00:45:10,207 INFO L226 Difference]: Without dead ends: 1366 [2024-11-17 00:45:10,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-17 00:45:10,208 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 169 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3982 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:10,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3982 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 00:45:10,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-11-17 00:45:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1342. [2024-11-17 00:45:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 876 states have (on average 1.658675799086758) internal successors, (1453), 1099 states have internal predecessors, (1453), 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) [2024-11-17 00:45:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1821 transitions. [2024-11-17 00:45:10,227 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1821 transitions. Word has length 31 [2024-11-17 00:45:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:10,227 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1821 transitions. [2024-11-17 00:45:10,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 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) [2024-11-17 00:45:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1821 transitions. [2024-11-17 00:45:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-17 00:45:10,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:10,228 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:10,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 00:45:10,430 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,SelfDestructingSolverStorable5 [2024-11-17 00:45:10,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr161REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:10,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1498620374, now seen corresponding path program 2 times [2024-11-17 00:45:10,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:10,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326785999] [2024-11-17 00:45:10,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:10,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:12,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 00:45:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326785999] [2024-11-17 00:45:12,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326785999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:12,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:12,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:45:12,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425030778] [2024-11-17 00:45:12,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:12,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:45:12,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:12,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:45:12,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:45:12,625 INFO L87 Difference]: Start difference. First operand 1342 states and 1821 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-17 00:45:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:13,642 INFO L93 Difference]: Finished difference Result 1575 states and 1945 transitions. [2024-11-17 00:45:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:45:13,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 55 [2024-11-17 00:45:13,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:13,647 INFO L225 Difference]: With dead ends: 1575 [2024-11-17 00:45:13,647 INFO L226 Difference]: Without dead ends: 1575 [2024-11-17 00:45:13,647 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 [2024-11-17 00:45:13,648 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 873 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:13,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 1539 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 00:45:13,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2024-11-17 00:45:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1340. [2024-11-17 00:45:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 876 states have (on average 1.6484018264840183) internal successors, (1444), 1097 states have internal predecessors, (1444), 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) [2024-11-17 00:45:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1812 transitions. [2024-11-17 00:45:13,669 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1812 transitions. Word has length 55 [2024-11-17 00:45:13,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:13,669 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1812 transitions. [2024-11-17 00:45:13,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-17 00:45:13,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1812 transitions. [2024-11-17 00:45:13,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-17 00:45:13,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:13,670 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:13,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 00:45:13,670 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr162REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:13,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1498620373, now seen corresponding path program 1 times [2024-11-17 00:45:13,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:13,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792295195] [2024-11-17 00:45:13,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:13,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:16,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 00:45:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:16,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792295195] [2024-11-17 00:45:16,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792295195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:16,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:16,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:45:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591105481] [2024-11-17 00:45:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:16,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:45:16,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:45:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:45:16,334 INFO L87 Difference]: Start difference. First operand 1340 states and 1812 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-17 00:45:17,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:17,665 INFO L93 Difference]: Finished difference Result 1421 states and 1855 transitions. [2024-11-17 00:45:17,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:45:17,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 55 [2024-11-17 00:45:17,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:17,670 INFO L225 Difference]: With dead ends: 1421 [2024-11-17 00:45:17,670 INFO L226 Difference]: Without dead ends: 1421 [2024-11-17 00:45:17,671 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 [2024-11-17 00:45:17,671 INFO L432 NwaCegarLoop]: 748 mSDtfsCounter, 386 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:17,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1859 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-17 00:45:17,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-17 00:45:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1338. [2024-11-17 00:45:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 876 states have (on average 1.6461187214611872) internal successors, (1442), 1095 states have internal predecessors, (1442), 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) [2024-11-17 00:45:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1810 transitions. [2024-11-17 00:45:17,693 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1810 transitions. Word has length 55 [2024-11-17 00:45:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:17,693 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 1810 transitions. [2024-11-17 00:45:17,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-17 00:45:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1810 transitions. [2024-11-17 00:45:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 00:45:17,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:17,695 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 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] [2024-11-17 00:45:17,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 00:45:17,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr157REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:17,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1645582464, now seen corresponding path program 1 times [2024-11-17 00:45:17,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:17,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640611704] [2024-11-17 00:45:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:17,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:19,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:19,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:19,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:19,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-17 00:45:19,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:19,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640611704] [2024-11-17 00:45:19,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640611704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:19,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:19,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:45:19,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69878293] [2024-11-17 00:45:19,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:19,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:45:19,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:45:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:45:19,917 INFO L87 Difference]: Start difference. First operand 1338 states and 1810 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 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) [2024-11-17 00:45:20,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:20,338 INFO L93 Difference]: Finished difference Result 1361 states and 1837 transitions. [2024-11-17 00:45:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:45:20,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 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 80 [2024-11-17 00:45:20,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:20,343 INFO L225 Difference]: With dead ends: 1361 [2024-11-17 00:45:20,343 INFO L226 Difference]: Without dead ends: 1361 [2024-11-17 00:45:20,343 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 [2024-11-17 00:45:20,344 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 901 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:20,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1274 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 00:45:20,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-11-17 00:45:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1337. [2024-11-17 00:45:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 875 states have (on average 1.6445714285714286) internal successors, (1439), 1094 states have internal predecessors, (1439), 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) [2024-11-17 00:45:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1807 transitions. [2024-11-17 00:45:20,361 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1807 transitions. Word has length 80 [2024-11-17 00:45:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:20,361 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1807 transitions. [2024-11-17 00:45:20,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 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) [2024-11-17 00:45:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1807 transitions. [2024-11-17 00:45:20,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-17 00:45:20,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:20,368 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 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] [2024-11-17 00:45:20,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 00:45:20,368 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr157REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:20,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash 857798528, now seen corresponding path program 1 times [2024-11-17 00:45:20,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:20,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582322422] [2024-11-17 00:45:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:20,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:22,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:22,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:22,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:22,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-17 00:45:22,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:22,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582322422] [2024-11-17 00:45:22,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582322422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:22,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:22,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:45:22,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142336083] [2024-11-17 00:45:22,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:22,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:45:22,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:22,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:45:22,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:45:22,677 INFO L87 Difference]: Start difference. First operand 1337 states and 1807 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-17 00:45:23,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:23,518 INFO L93 Difference]: Finished difference Result 1360 states and 1836 transitions. [2024-11-17 00:45:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:45:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 82 [2024-11-17 00:45:23,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:23,522 INFO L225 Difference]: With dead ends: 1360 [2024-11-17 00:45:23,522 INFO L226 Difference]: Without dead ends: 1360 [2024-11-17 00:45:23,522 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 [2024-11-17 00:45:23,523 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 146 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:23,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1772 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 00:45:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-17 00:45:23,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1336. [2024-11-17 00:45:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 875 states have (on average 1.6434285714285715) internal successors, (1438), 1093 states have internal predecessors, (1438), 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) [2024-11-17 00:45:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1806 transitions. [2024-11-17 00:45:23,539 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1806 transitions. Word has length 82 [2024-11-17 00:45:23,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:23,540 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1806 transitions. [2024-11-17 00:45:23,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-17 00:45:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1806 transitions. [2024-11-17 00:45:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-17 00:45:23,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:23,540 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 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] [2024-11-17 00:45:23,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 00:45:23,540 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr158REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:23,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash 857798529, now seen corresponding path program 1 times [2024-11-17 00:45:23,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569233150] [2024-11-17 00:45:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:23,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:25,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:25,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:25,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:25,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-17 00:45:25,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:25,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569233150] [2024-11-17 00:45:25,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569233150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:25,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:25,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:45:25,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577645595] [2024-11-17 00:45:25,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:25,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:45:25,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:25,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:45:25,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:45:25,983 INFO L87 Difference]: Start difference. First operand 1336 states and 1806 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-17 00:45:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:26,700 INFO L93 Difference]: Finished difference Result 1359 states and 1835 transitions. [2024-11-17 00:45:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:45:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 82 [2024-11-17 00:45:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:26,704 INFO L225 Difference]: With dead ends: 1359 [2024-11-17 00:45:26,704 INFO L226 Difference]: Without dead ends: 1359 [2024-11-17 00:45:26,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-17 00:45:26,705 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 896 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:26,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1762 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 00:45:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-17 00:45:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1335. [2024-11-17 00:45:26,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 875 states have (on average 1.6422857142857143) internal successors, (1437), 1092 states have internal predecessors, (1437), 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) [2024-11-17 00:45:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1805 transitions. [2024-11-17 00:45:26,724 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1805 transitions. Word has length 82 [2024-11-17 00:45:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:26,725 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1805 transitions. [2024-11-17 00:45:26,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-17 00:45:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1805 transitions. [2024-11-17 00:45:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-17 00:45:26,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:26,727 INFO L215 NwaCegarLoop]: trace histogram [11, 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] [2024-11-17 00:45:26,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 00:45:26,728 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:26,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1374490187, now seen corresponding path program 1 times [2024-11-17 00:45:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342872169] [2024-11-17 00:45:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:26,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:28,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:28,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:28,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:28,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:28,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-17 00:45:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-17 00:45:28,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:28,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342872169] [2024-11-17 00:45:28,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342872169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:28,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:28,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:45:28,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969225105] [2024-11-17 00:45:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:28,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:45:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:45:28,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:45:28,704 INFO L87 Difference]: Start difference. First operand 1335 states and 1805 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-17 00:45:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:29,406 INFO L93 Difference]: Finished difference Result 1401 states and 1845 transitions. [2024-11-17 00:45:29,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:45:29,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 88 [2024-11-17 00:45:29,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:29,412 INFO L225 Difference]: With dead ends: 1401 [2024-11-17 00:45:29,412 INFO L226 Difference]: Without dead ends: 1387 [2024-11-17 00:45:29,413 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 [2024-11-17 00:45:29,413 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 240 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:29,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1707 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 00:45:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-17 00:45:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1330. [2024-11-17 00:45:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 872 states have (on average 1.643348623853211) internal successors, (1433), 1089 states have internal predecessors, (1433), 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) [2024-11-17 00:45:29,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1797 transitions. [2024-11-17 00:45:29,435 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1797 transitions. Word has length 88 [2024-11-17 00:45:29,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:29,436 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1797 transitions. [2024-11-17 00:45:29,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-17 00:45:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1797 transitions. [2024-11-17 00:45:29,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 00:45:29,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:29,437 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:29,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 00:45:29,437 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:29,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:29,437 INFO L85 PathProgramCache]: Analyzing trace with hash -713730505, now seen corresponding path program 1 times [2024-11-17 00:45:29,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:29,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162531393] [2024-11-17 00:45:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:29,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:32,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:32,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:32,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:32,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:32,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-17 00:45:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-17 00:45:32,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:32,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162531393] [2024-11-17 00:45:32,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162531393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:32,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986577867] [2024-11-17 00:45:32,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:32,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:45:32,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:45:32,084 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) [2024-11-17 00:45:32,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 00:45:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:34,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 5844 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 00:45:34,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:45:35,239 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-17 00:45:35,240 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 [2024-11-17 00:45:35,263 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 [2024-11-17 00:45:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-17 00:45:35,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:45:35,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986577867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:35,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 00:45:35,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-17 00:45:35,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659788516] [2024-11-17 00:45:35,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 00:45:35,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 00:45:35,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:35,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 00:45:35,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-17 00:45:35,377 INFO L87 Difference]: Start difference. First operand 1330 states and 1797 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-17 00:45:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:37,503 INFO L93 Difference]: Finished difference Result 1933 states and 2525 transitions. [2024-11-17 00:45:37,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 00:45:37,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 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 91 [2024-11-17 00:45:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:37,509 INFO L225 Difference]: With dead ends: 1933 [2024-11-17 00:45:37,509 INFO L226 Difference]: Without dead ends: 1933 [2024-11-17 00:45:37,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-17 00:45:37,510 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 971 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 3254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:37,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 3552 Invalid, 3254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-17 00:45:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-11-17 00:45:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1676. [2024-11-17 00:45:37,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1139 states have (on average 1.6681299385425812) internal successors, (1900), 1367 states have internal predecessors, (1900), 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) [2024-11-17 00:45:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2380 transitions. [2024-11-17 00:45:37,533 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2380 transitions. Word has length 91 [2024-11-17 00:45:37,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:37,534 INFO L471 AbstractCegarLoop]: Abstraction has 1676 states and 2380 transitions. [2024-11-17 00:45:37,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-17 00:45:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2380 transitions. [2024-11-17 00:45:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 00:45:37,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:37,535 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:37,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 00:45:37,735 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 [2024-11-17 00:45:37,735 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:37,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:37,736 INFO L85 PathProgramCache]: Analyzing trace with hash -713730504, now seen corresponding path program 1 times [2024-11-17 00:45:37,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:37,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217885801] [2024-11-17 00:45:37,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:37,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:40,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:40,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:40,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:40,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:40,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-17 00:45:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-17 00:45:40,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217885801] [2024-11-17 00:45:40,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217885801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586182475] [2024-11-17 00:45:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:40,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:45:40,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:45:40,717 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) [2024-11-17 00:45:40,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 00:45:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:43,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 5844 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 00:45:43,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:45:43,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 00:45:43,984 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 [2024-11-17 00:45:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-17 00:45:44,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:45:44,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586182475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:44,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 00:45:44,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2024-11-17 00:45:44,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454699413] [2024-11-17 00:45:44,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 00:45:44,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 00:45:44,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:44,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 00:45:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-17 00:45:44,257 INFO L87 Difference]: Start difference. First operand 1676 states and 2380 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-17 00:45:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:46,971 INFO L93 Difference]: Finished difference Result 2148 states and 2767 transitions. [2024-11-17 00:45:46,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 00:45:46,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2024-11-17 00:45:46,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:46,977 INFO L225 Difference]: With dead ends: 2148 [2024-11-17 00:45:46,977 INFO L226 Difference]: Without dead ends: 2148 [2024-11-17 00:45:46,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-17 00:45:46,978 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 2067 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 3894 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 3894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:46,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 2926 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 3894 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-17 00:45:46,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2024-11-17 00:45:46,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1863. [2024-11-17 00:45:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1863 states, 1284 states have (on average 1.679127725856698) internal successors, (2156), 1508 states have internal predecessors, (2156), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-17 00:45:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2690 transitions. [2024-11-17 00:45:47,000 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2690 transitions. Word has length 91 [2024-11-17 00:45:47,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:47,001 INFO L471 AbstractCegarLoop]: Abstraction has 1863 states and 2690 transitions. [2024-11-17 00:45:47,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-17 00:45:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2690 transitions. [2024-11-17 00:45:47,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 00:45:47,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:47,002 INFO L215 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1] [2024-11-17 00:45:47,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 00:45:47,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:45:47,202 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:47,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:47,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1265753040, now seen corresponding path program 1 times [2024-11-17 00:45:47,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:47,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508912195] [2024-11-17 00:45:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:47,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-17 00:45:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 00:45:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-17 00:45:49,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:49,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508912195] [2024-11-17 00:45:49,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508912195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:45:49,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:45:49,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 00:45:49,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351032470] [2024-11-17 00:45:49,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:45:49,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 00:45:49,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:49,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 00:45:49,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:45:49,208 INFO L87 Difference]: Start difference. First operand 1863 states and 2690 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 00:45:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:49,780 INFO L93 Difference]: Finished difference Result 1481 states and 2070 transitions. [2024-11-17 00:45:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:45:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 94 [2024-11-17 00:45:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:49,785 INFO L225 Difference]: With dead ends: 1481 [2024-11-17 00:45:49,785 INFO L226 Difference]: Without dead ends: 1476 [2024-11-17 00:45:49,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:45:49,787 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 145 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:49,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3315 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 00:45:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-17 00:45:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1450. [2024-11-17 00:45:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 977 states have (on average 1.68474923234391) internal successors, (1646), 1188 states have internal predecessors, (1646), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-17 00:45:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2030 transitions. [2024-11-17 00:45:49,809 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2030 transitions. Word has length 94 [2024-11-17 00:45:49,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:49,810 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2030 transitions. [2024-11-17 00:45:49,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 00:45:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2030 transitions. [2024-11-17 00:45:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 00:45:49,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:49,812 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:49,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 00:45:49,812 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:49,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:49,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1399211336, now seen corresponding path program 1 times [2024-11-17 00:45:49,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:49,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418970075] [2024-11-17 00:45:49,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:49,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 00:45:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 00:45:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-17 00:45:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-17 00:45:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-17 00:45:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-17 00:45:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-17 00:45:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:45:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418970075] [2024-11-17 00:45:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418970075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860206310] [2024-11-17 00:45:52,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:52,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:45:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:45:52,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:45:52,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 00:45:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:45:55,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 5892 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 00:45:55,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:45:55,742 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-17 00:45:55,743 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 [2024-11-17 00:45:55,765 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 [2024-11-17 00:45:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-17 00:45:55,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:45:55,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860206310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:45:55,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 00:45:55,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-17 00:45:55,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613764961] [2024-11-17 00:45:55,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 00:45:55,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 00:45:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:45:55,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 00:45:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-17 00:45:55,832 INFO L87 Difference]: Start difference. First operand 1450 states and 2030 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-17 00:45:57,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:45:57,823 INFO L93 Difference]: Finished difference Result 1653 states and 2078 transitions. [2024-11-17 00:45:57,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 00:45:57,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 97 [2024-11-17 00:45:57,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:45:57,828 INFO L225 Difference]: With dead ends: 1653 [2024-11-17 00:45:57,828 INFO L226 Difference]: Without dead ends: 1653 [2024-11-17 00:45:57,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-17 00:45:57,829 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 1603 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 2846 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 3167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-17 00:45:57,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 3222 Invalid, 3167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2846 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-17 00:45:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-11-17 00:45:57,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1449. [2024-11-17 00:45:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 977 states have (on average 1.683725690890481) internal successors, (1645), 1187 states have internal predecessors, (1645), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-17 00:45:57,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2029 transitions. [2024-11-17 00:45:57,845 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2029 transitions. Word has length 97 [2024-11-17 00:45:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:45:57,845 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 2029 transitions. [2024-11-17 00:45:57,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-17 00:45:57,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2029 transitions. [2024-11-17 00:45:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 00:45:57,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:45:57,846 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:45:57,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 00:45:58,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-17 00:45:58,047 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting spin_lock_initErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-17 00:45:58,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:45:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1399211335, now seen corresponding path program 1 times [2024-11-17 00:45:58,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:45:58,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606570440] [2024-11-17 00:45:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:45:58,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:45:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat