./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_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 822210afb67ed99ceea45b432aca8ec250ff4c38d2893c644887ddfbc667fadf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:57:47,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:57:47,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 18:57:47,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:57:47,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:57:47,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:57:47,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:57:47,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:57:47,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:57:47,292 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:57:47,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:57:47,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:57:47,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:57:47,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:57:47,295 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:57:47,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:57:47,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:57:47,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:57:47,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:57:47,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:57:47,296 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:57:47,297 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:57:47,297 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 18:57:47,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:57:47,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:57:47,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:57:47,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:57:47,298 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:57:47,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:57:47,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:57:47,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:57:47,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:57:47,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:57:47,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:57:47,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:57:47,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:57:47,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:57:47,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:57:47,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:57:47,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:57:47,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:57:47,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:57:47,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822210afb67ed99ceea45b432aca8ec250ff4c38d2893c644887ddfbc667fadf [2024-11-22 18:57:47,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:57:47,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:57:47,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:57:47,526 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:57:47,527 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:57:47,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i [2024-11-22 18:57:48,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:57:49,133 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:57:49,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i [2024-11-22 18:57:49,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9dfb50f/18540a800694470c92d0f520cc9f7c66/FLAGe79e3eb88 [2024-11-22 18:57:49,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9dfb50f/18540a800694470c92d0f520cc9f7c66 [2024-11-22 18:57:49,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:57:49,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:57:49,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:57:49,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:57:49,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:57:49,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:57:49" (1/1) ... [2024-11-22 18:57:49,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e2d204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:49, skipping insertion in model container [2024-11-22 18:57:49,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:57:49" (1/1) ... [2024-11-22 18:57:49,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:57:50,005 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:57:50,023 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:57:50,038 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:57:50,079 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:57:50,104 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:57:50,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:57:50,148 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:57:50,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:57:50,479 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:57:50,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50 WrapperNode [2024-11-22 18:57:50,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:57:50,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:57:50,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:57:50,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:57:50,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,647 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-22 18:57:50,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:57:50,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:57:50,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:57:50,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:57:50,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,683 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,815 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 35, 1040, 480, 59, 35, 11, 5, 15, 5, 120, 67, 37, 12, 2, 2, 20, 4, 16, 2, 2, 18, 0, 34, 5, 3]. 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, 4, 120, 67, 25, 6, 2, 0, 4, 4, 5, 0, 0, 18, 0, 34, 1, 0]. The 37 writes are split as follows [0, 0, 6, 0, 0, 0, 0, 5, 1, 2, 0, 0, 0, 0, 6, 0, 1, 4, 0, 8, 2, 0, 0, 0, 0, 2, 0]. [2024-11-22 18:57:50,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:57:50,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:57:50,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:57:50,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:57:50,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (1/1) ... [2024-11-22 18:57:50,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:57:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:57:51,052 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) [2024-11-22 18:57:51,054 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 [2024-11-22 18:57:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-22 18:57:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-22 18:57:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 18:57:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-22 18:57:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-22 18:57:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-22 18:57:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:57:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-22 18:57:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-22 18:57:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 18:57:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-22 18:57:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 18:57:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-22 18:57:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 18:57:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-22 18:57:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-22 18:57:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:57:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 18:57:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 18:57:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 18:57:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 18:57:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 18:57:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 18:57:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 18:57:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 18:57:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-22 18:57:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-22 18:57:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-22 18:57:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-22 18:57:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-22 18:57:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-22 18:57:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-22 18:57:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-22 18:57:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-22 18:57:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-22 18:57:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-22 18:57:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-22 18:57:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-22 18:57:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-22 18:57:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-22 18:57:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-22 18:57:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-22 18:57:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-22 18:57:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-22 18:57:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 18:57:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 18:57:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-22 18:57:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-22 18:57:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-22 18:57:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-22 18:57:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-22 18:57:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-22 18:57:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:57:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:57:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-22 18:57:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-22 18:57:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 18:57:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 18:57:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-22 18:57:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-22 18:57:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:57:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 18:57:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 18:57:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 18:57:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 18:57:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 18:57:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 18:57:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 18:57:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-22 18:57:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-22 18:57:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-22 18:57:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-22 18:57:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-22 18:57:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 18:57:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-22 18:57:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-22 18:57:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-22 18:57:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-22 18:57:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-22 18:57:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-22 18:57:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-22 18:57:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-22 18:57:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-22 18:57:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-22 18:57:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-22 18:57:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-22 18:57:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-22 18:57:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-22 18:57:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-22 18:57:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-22 18:57:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-22 18:57:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-22 18:57:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-22 18:57:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-22 18:57:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-22 18:57:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-22 18:57:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-22 18:57:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-22 18:57:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-22 18:57:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-22 18:57:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 18:57:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 18:57:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 18:57:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 18:57:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 18:57:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 18:57:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 18:57:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-22 18:57:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-22 18:57:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-22 18:57:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-22 18:57:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-22 18:57:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-22 18:57:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-22 18:57:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-22 18:57:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-22 18:57:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-22 18:57:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-22 18:57:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-22 18:57:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 18:57:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 18:57:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 18:57:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-22 18:57:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-22 18:57:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-22 18:57:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-22 18:57:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-22 18:57:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-22 18:57:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-22 18:57:51,458 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:57:51,461 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:57:54,641 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-22 18:57:54,642 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:57:54,684 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:57:54,684 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-22 18:57:54,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:57:54 BoogieIcfgContainer [2024-11-22 18:57:54,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:57:54,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:57:54,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:57:54,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:57:54,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:57:49" (1/3) ... [2024-11-22 18:57:54,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49437a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:57:54, skipping insertion in model container [2024-11-22 18:57:54,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:57:50" (2/3) ... [2024-11-22 18:57:54,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49437a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:57:54, skipping insertion in model container [2024-11-22 18:57:54,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:57:54" (3/3) ... [2024-11-22 18:57:54,697 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inl_p.i [2024-11-22 18:57:54,710 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:57:54,710 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-22 18:57:54,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:57:54,771 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;@5a7da74e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:57:54,772 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-22 18:57:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 18:57:54,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 18:57:54,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:57:54,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 18:57:54,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:57:54,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:57:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-22 18:57:54,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:57:54,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941654563] [2024-11-22 18:57:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:57:54,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:57:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:57:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:57:57,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:57:57,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941654563] [2024-11-22 18:57:57,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941654563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:57:57,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:57:57,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:57:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071256774] [2024-11-22 18:57:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:57:57,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:57:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:57:57,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:57:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:57:57,563 INFO L87 Difference]: Start difference. First operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:57:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:57:58,780 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-22 18:57:58,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:57:58,782 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 [2024-11-22 18:57:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:57:58,799 INFO L225 Difference]: With dead ends: 1270 [2024-11-22 18:57:58,799 INFO L226 Difference]: Without dead ends: 1266 [2024-11-22 18:57:58,800 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 [2024-11-22 18:57:58,804 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:57:58,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 18:57:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-22 18:57:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-22 18:57:58,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 660 states have (on average 1.7606060606060605) internal successors, (1162), 882 states have internal predecessors, (1162), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-22 18:57:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-22 18:57:58,893 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-22 18:57:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:57:58,893 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-22 18:57:58,893 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) [2024-11-22 18:57:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-22 18:57:58,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 18:57:58,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:57:58,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 18:57:58,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:57:58,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:57:58,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:57:58,895 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-22 18:57:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:57:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684792246] [2024-11-22 18:57:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:57:58,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:01,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684792246] [2024-11-22 18:58:01,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684792246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:01,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:01,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:58:01,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749263872] [2024-11-22 18:58:01,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:01,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:58:01,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:58:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:01,536 INFO L87 Difference]: Start difference. First operand 1053 states and 1438 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:58:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:02,317 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-22 18:58:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:58:02,317 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 [2024-11-22 18:58:02,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:02,326 INFO L225 Difference]: With dead ends: 1193 [2024-11-22 18:58:02,326 INFO L226 Difference]: Without dead ends: 1193 [2024-11-22 18:58:02,326 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 [2024-11-22 18:58:02,327 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:02,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 18:58:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-22 18:58:02,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-22 18:58:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 709 states have (on average 1.7249647390691114) internal successors, (1223), 932 states have internal predecessors, (1223), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-22 18:58:02,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-22 18:58:02,364 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-22 18:58:02,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:02,365 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-22 18:58:02,365 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) [2024-11-22 18:58:02,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-22 18:58:02,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 18:58:02,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:02,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:02,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:58:02,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:02,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:02,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-22 18:58:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:02,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574397618] [2024-11-22 18:58:02,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:02,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:04,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:04,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574397618] [2024-11-22 18:58:04,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574397618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:04,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:58:04,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41284515] [2024-11-22 18:58:04,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:04,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:58:04,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:58:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:04,335 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:04,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:04,727 INFO L93 Difference]: Finished difference Result 1340 states and 1624 transitions. [2024-11-22 18:58:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:58:04,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-22 18:58:04,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:04,731 INFO L225 Difference]: With dead ends: 1340 [2024-11-22 18:58:04,731 INFO L226 Difference]: Without dead ends: 1340 [2024-11-22 18:58:04,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:04,735 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 710 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:04,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1347 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 18:58:04,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-22 18:58:04,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1133. [2024-11-22 18:58:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 709 states have (on average 1.7179125528913963) internal successors, (1218), 931 states have internal predecessors, (1218), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-22 18:58:04,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-22 18:58:04,772 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-22 18:58:04,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:04,772 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-22 18:58:04,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:04,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-22 18:58:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 18:58:04,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:04,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:04,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:58:04,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:04,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:04,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-22 18:58:04,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:04,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125324268] [2024-11-22 18:58:04,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:04,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:06,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125324268] [2024-11-22 18:58:06,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125324268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:06,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:06,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:58:06,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712492868] [2024-11-22 18:58:06,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:06,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:58:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:06,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:58:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:58:06,944 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:07,481 INFO L93 Difference]: Finished difference Result 1197 states and 1547 transitions. [2024-11-22 18:58:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:58:07,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-22 18:58:07,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:07,486 INFO L225 Difference]: With dead ends: 1197 [2024-11-22 18:58:07,486 INFO L226 Difference]: Without dead ends: 1197 [2024-11-22 18:58:07,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:58:07,488 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 286 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:07,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1620 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 18:58:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-22 18:58:07,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1136. [2024-11-22 18:58:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 712 states have (on average 1.7148876404494382) internal successors, (1221), 934 states have internal predecessors, (1221), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-22 18:58:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-22 18:58:07,519 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-22 18:58:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:07,520 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-22 18:58:07,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-22 18:58:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-22 18:58:07,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:07,520 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:07,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:58:07,520 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:07,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:07,521 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-22 18:58:07,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:07,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332090128] [2024-11-22 18:58:07,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:07,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:09,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332090128] [2024-11-22 18:58:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332090128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:58:09,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917730362] [2024-11-22 18:58:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:09,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:58:09,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:58:09,691 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) [2024-11-22 18:58:09,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:58:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:12,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 18:58:12,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:58:12,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:12,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:58:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:12,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917730362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:58:12,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:58:12,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 4] total 11 [2024-11-22 18:58:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734070117] [2024-11-22 18:58:12,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:58:12,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 18:58:12,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 18:58:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-22 18:58:12,300 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:58:14,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:14,149 INFO L93 Difference]: Finished difference Result 1413 states and 1786 transitions. [2024-11-22 18:58:14,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 18:58:14,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-22 18:58:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:14,154 INFO L225 Difference]: With dead ends: 1413 [2024-11-22 18:58:14,154 INFO L226 Difference]: Without dead ends: 1413 [2024-11-22 18:58:14,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-22 18:58:14,156 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 925 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:14,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 5250 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 18:58:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2024-11-22 18:58:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1289. [2024-11-22 18:58:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 823 states have (on average 1.701093560145808) internal successors, (1400), 1046 states have internal predecessors, (1400), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-22 18:58:14,181 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-22 18:58:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:14,181 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-22 18:58:14,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:58:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-22 18:58:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 18:58:14,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:14,182 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:14,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 18:58:14,383 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 [2024-11-22 18:58:14,383 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:14,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:14,384 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-22 18:58:14,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:14,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206361255] [2024-11-22 18:58:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:14,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 18:58:16,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:16,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206361255] [2024-11-22 18:58:16,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206361255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:16,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:16,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:58:16,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122615449] [2024-11-22 18:58:16,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:16,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:58:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:16,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:58:16,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:16,225 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:16,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:16,634 INFO L93 Difference]: Finished difference Result 1497 states and 1861 transitions. [2024-11-22 18:58:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:58:16,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-22 18:58:16,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:16,638 INFO L225 Difference]: With dead ends: 1497 [2024-11-22 18:58:16,639 INFO L226 Difference]: Without dead ends: 1497 [2024-11-22 18:58:16,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:16,640 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 695 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:16,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1351 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 18:58:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-11-22 18:58:16,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1287. [2024-11-22 18:58:16,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 823 states have (on average 1.6901579586877278) internal successors, (1391), 1044 states have internal predecessors, (1391), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-22 18:58:16,663 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-22 18:58:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:16,663 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-22 18:58:16,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-22 18:58:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 18:58:16,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:16,664 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:16,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:58:16,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:16,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:16,665 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-22 18:58:16,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:16,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516625685] [2024-11-22 18:58:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:16,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:18,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:18,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516625685] [2024-11-22 18:58:18,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516625685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:58:18,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986922897] [2024-11-22 18:58:18,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:18,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:58:18,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:58:18,565 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) [2024-11-22 18:58:18,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:58:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:20,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 18:58:20,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:58:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:20,919 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:58:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:58:20,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986922897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:58:20,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:58:20,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-22 18:58:20,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531230689] [2024-11-22 18:58:20,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:58:20,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 18:58:20,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:20,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 18:58:20,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:58:20,972 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2024-11-22 18:58:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:21,051 INFO L93 Difference]: Finished difference Result 1305 states and 1777 transitions. [2024-11-22 18:58:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 18:58:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-22 18:58:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:21,056 INFO L225 Difference]: With dead ends: 1305 [2024-11-22 18:58:21,057 INFO L226 Difference]: Without dead ends: 1305 [2024-11-22 18:58:21,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:58:21,058 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 10 mSDsluCounter, 4110 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:21,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4937 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:58:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-22 18:58:21,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2024-11-22 18:58:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 841 states have (on average 1.6753864447086801) internal successors, (1409), 1062 states have internal predecessors, (1409), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-22 18:58:21,080 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-22 18:58:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:21,080 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-22 18:58:21,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2024-11-22 18:58:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-22 18:58:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-22 18:58:21,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:21,081 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:21,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 18:58:21,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-22 18:58:21,282 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:21,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:21,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-22 18:58:21,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:21,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324455739] [2024-11-22 18:58:21,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 18:58:21,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:22,821 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 18:58:22,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 18:58:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-22 18:58:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324455739] [2024-11-22 18:58:23,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324455739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:23,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:23,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:58:23,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533240318] [2024-11-22 18:58:23,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:23,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:58:23,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:23,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:58:23,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:58:23,307 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:23,772 INFO L93 Difference]: Finished difference Result 1361 states and 1789 transitions. [2024-11-22 18:58:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:58:23,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-11-22 18:58:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:23,776 INFO L225 Difference]: With dead ends: 1361 [2024-11-22 18:58:23,777 INFO L226 Difference]: Without dead ends: 1361 [2024-11-22 18:58:23,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:58:23,778 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 256 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:23,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1604 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 18:58:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-11-22 18:58:23,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1303. [2024-11-22 18:58:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 841 states have (on average 1.6730083234244946) internal successors, (1407), 1060 states have internal predecessors, (1407), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:23,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-22 18:58:23,799 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-22 18:58:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:23,801 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-22 18:58:23,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 18:58:23,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-22 18:58:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 18:58:23,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:23,803 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:23,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:58:23,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:23,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:23,804 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-22 18:58:23,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:23,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577531174] [2024-11-22 18:58:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-22 18:58:25,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:25,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577531174] [2024-11-22 18:58:25,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577531174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:25,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:25,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:58:25,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240099211] [2024-11-22 18:58:25,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:25,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:58:25,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:58:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:25,779 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 18:58:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:25,800 INFO L93 Difference]: Finished difference Result 1302 states and 1772 transitions. [2024-11-22 18:58:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:58:25,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-22 18:58:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:25,804 INFO L225 Difference]: With dead ends: 1302 [2024-11-22 18:58:25,804 INFO L226 Difference]: Without dead ends: 1302 [2024-11-22 18:58:25,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:25,805 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 818 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:25,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 829 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:58:25,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-22 18:58:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1302. [2024-11-22 18:58:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 840 states have (on average 1.6714285714285715) internal successors, (1404), 1059 states have internal predecessors, (1404), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-22 18:58:25,826 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-22 18:58:25,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:25,828 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-22 18:58:25,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 18:58:25,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-22 18:58:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 18:58:25,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:25,829 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:25,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:58:25,830 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:25,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:25,830 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-22 18:58:25,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:25,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133235410] [2024-11-22 18:58:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:25,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-22 18:58:27,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:27,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133235410] [2024-11-22 18:58:27,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133235410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:27,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:27,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:58:27,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154765980] [2024-11-22 18:58:27,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:27,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:58:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:58:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:27,755 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 18:58:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:28,055 INFO L93 Difference]: Finished difference Result 1301 states and 1771 transitions. [2024-11-22 18:58:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:58:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2024-11-22 18:58:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:28,063 INFO L225 Difference]: With dead ends: 1301 [2024-11-22 18:58:28,064 INFO L226 Difference]: Without dead ends: 1301 [2024-11-22 18:58:28,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:28,065 INFO L432 NwaCegarLoop]: 828 mSDtfsCounter, 1 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:28,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1448 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:58:28,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-11-22 18:58:28,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2024-11-22 18:58:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 840 states have (on average 1.6702380952380953) internal successors, (1403), 1058 states have internal predecessors, (1403), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-22 18:58:28,084 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-22 18:58:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:28,084 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-22 18:58:28,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 18:58:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-22 18:58:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 18:58:28,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:28,086 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:28,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:58:28,086 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:28,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-22 18:58:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:28,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530775131] [2024-11-22 18:58:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:28,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-22 18:58:30,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:30,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530775131] [2024-11-22 18:58:30,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530775131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:30,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:30,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:58:30,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866562552] [2024-11-22 18:58:30,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:30,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:58:30,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:30,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:58:30,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:58:30,312 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 18:58:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:30,664 INFO L93 Difference]: Finished difference Result 1300 states and 1770 transitions. [2024-11-22 18:58:30,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:58:30,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-11-22 18:58:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:30,668 INFO L225 Difference]: With dead ends: 1300 [2024-11-22 18:58:30,669 INFO L226 Difference]: Without dead ends: 1300 [2024-11-22 18:58:30,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:30,669 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 813 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:30,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1451 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:58:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-22 18:58:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1300. [2024-11-22 18:58:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 840 states have (on average 1.6690476190476191) internal successors, (1402), 1057 states have internal predecessors, (1402), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-22 18:58:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-22 18:58:30,690 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-22 18:58:30,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:30,691 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-22 18:58:30,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 18:58:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-22 18:58:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 18:58:30,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:30,694 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:30,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 18:58:30,694 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr164ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:30,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-22 18:58:30,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:30,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094709860] [2024-11-22 18:58:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:30,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-22 18:58:32,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:32,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094709860] [2024-11-22 18:58:32,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094709860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:32,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:32,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:58:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799037686] [2024-11-22 18:58:32,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:32,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:58:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:32,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:58:32,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:32,419 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 18:58:32,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:32,763 INFO L93 Difference]: Finished difference Result 1341 states and 1779 transitions. [2024-11-22 18:58:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:58:32,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2024-11-22 18:58:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:32,768 INFO L225 Difference]: With dead ends: 1341 [2024-11-22 18:58:32,768 INFO L226 Difference]: Without dead ends: 1328 [2024-11-22 18:58:32,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:32,769 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 95 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:32,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1405 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:58:32,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2024-11-22 18:58:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1295. [2024-11-22 18:58:32,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 837 states have (on average 1.6702508960573477) internal successors, (1398), 1054 states have internal predecessors, (1398), 183 states have call successors, (183), 79 states have call predecessors, (183), 78 states have return successors, (181), 174 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-22 18:58:32,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-22 18:58:32,792 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-22 18:58:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:32,792 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-22 18:58:32,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 18:58:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-22 18:58:32,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 18:58:32,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:32,793 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:32,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:58:32,794 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:32,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:32,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-22 18:58:32,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116513770] [2024-11-22 18:58:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:32,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-22 18:58:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116513770] [2024-11-22 18:58:35,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116513770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:35,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:35,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 18:58:35,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089493890] [2024-11-22 18:58:35,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:35,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 18:58:35,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 18:58:35,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:58:35,193 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 18:58:36,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:36,402 INFO L93 Difference]: Finished difference Result 1857 states and 2440 transitions. [2024-11-22 18:58:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:58:36,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 78 [2024-11-22 18:58:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:36,407 INFO L225 Difference]: With dead ends: 1857 [2024-11-22 18:58:36,408 INFO L226 Difference]: Without dead ends: 1857 [2024-11-22 18:58:36,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:58:36,408 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 806 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:36,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 3226 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 18:58:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2024-11-22 18:58:36,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1634. [2024-11-22 18:58:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1097 states have (on average 1.6937101185050136) internal successors, (1858), 1325 states have internal predecessors, (1858), 241 states have call successors, (241), 101 states have call predecessors, (241), 100 states have return successors, (239), 225 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-22 18:58:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-22 18:58:36,431 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-22 18:58:36,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:36,432 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-22 18:58:36,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 18:58:36,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-22 18:58:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 18:58:36,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:36,435 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:36,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 18:58:36,436 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:36,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:36,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-22 18:58:36,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:36,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19407397] [2024-11-22 18:58:36,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:36,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-22 18:58:39,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:39,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19407397] [2024-11-22 18:58:39,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19407397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:39,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:39,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 18:58:39,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453432515] [2024-11-22 18:58:39,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:39,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 18:58:39,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:39,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 18:58:39,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:58:39,025 INFO L87 Difference]: Start difference. First operand 1634 states and 2338 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 18:58:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:40,429 INFO L93 Difference]: Finished difference Result 2065 states and 2674 transitions. [2024-11-22 18:58:40,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:58:40,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 78 [2024-11-22 18:58:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:40,436 INFO L225 Difference]: With dead ends: 2065 [2024-11-22 18:58:40,436 INFO L226 Difference]: Without dead ends: 2065 [2024-11-22 18:58:40,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:58:40,437 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 1631 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:40,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 2416 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 18:58:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2024-11-22 18:58:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 1819. [2024-11-22 18:58:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7032258064516128) internal successors, (2112), 1464 states have internal predecessors, (2112), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-22 18:58:40,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2646 transitions. [2024-11-22 18:58:40,462 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2646 transitions. Word has length 78 [2024-11-22 18:58:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:40,463 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2646 transitions. [2024-11-22 18:58:40,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 18:58:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2646 transitions. [2024-11-22 18:58:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 18:58:40,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:40,464 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:40,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:58:40,464 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr114REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:40,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499240, now seen corresponding path program 1 times [2024-11-22 18:58:40,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:40,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694485991] [2024-11-22 18:58:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:40,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-22 18:58:42,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:42,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694485991] [2024-11-22 18:58:42,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694485991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:42,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:42,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:58:42,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706755992] [2024-11-22 18:58:42,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:42,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:58:42,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:58:42,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:42,534 INFO L87 Difference]: Start difference. First operand 1819 states and 2646 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 18:58:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:42,887 INFO L93 Difference]: Finished difference Result 2011 states and 2731 transitions. [2024-11-22 18:58:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:58:42,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2024-11-22 18:58:42,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:42,894 INFO L225 Difference]: With dead ends: 2011 [2024-11-22 18:58:42,895 INFO L226 Difference]: Without dead ends: 2011 [2024-11-22 18:58:42,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:58:42,898 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 650 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:42,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1824 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:58:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2024-11-22 18:58:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1819. [2024-11-22 18:58:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7008064516129033) internal successors, (2109), 1464 states have internal predecessors, (2109), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-22 18:58:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2643 transitions. [2024-11-22 18:58:42,932 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2643 transitions. Word has length 81 [2024-11-22 18:58:42,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:42,932 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2643 transitions. [2024-11-22 18:58:42,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 18:58:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2643 transitions. [2024-11-22 18:58:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 18:58:42,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:42,933 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:42,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 18:58:42,934 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr115REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:42,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:42,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499241, now seen corresponding path program 1 times [2024-11-22 18:58:42,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:42,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931310376] [2024-11-22 18:58:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:42,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-22 18:58:44,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:44,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931310376] [2024-11-22 18:58:44,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931310376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:44,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:44,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:58:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422200708] [2024-11-22 18:58:44,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:44,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:58:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:58:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:44,698 INFO L87 Difference]: Start difference. First operand 1819 states and 2643 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 18:58:44,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:44,733 INFO L93 Difference]: Finished difference Result 1420 states and 2001 transitions. [2024-11-22 18:58:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:58:44,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2024-11-22 18:58:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:44,737 INFO L225 Difference]: With dead ends: 1420 [2024-11-22 18:58:44,737 INFO L226 Difference]: Without dead ends: 1415 [2024-11-22 18:58:44,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:44,738 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 0 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:44,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3303 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:58:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2024-11-22 18:58:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1415. [2024-11-22 18:58:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 942 states have (on average 1.7101910828025477) internal successors, (1611), 1153 states have internal predecessors, (1611), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-22 18:58:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1995 transitions. [2024-11-22 18:58:44,761 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1995 transitions. Word has length 81 [2024-11-22 18:58:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:44,761 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1995 transitions. [2024-11-22 18:58:44,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 18:58:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1995 transitions. [2024-11-22 18:58:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 18:58:44,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:44,762 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:44,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 18:58:44,762 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:44,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:44,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403802, now seen corresponding path program 1 times [2024-11-22 18:58:44,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:44,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435494135] [2024-11-22 18:58:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:44,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-22 18:58:47,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:47,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435494135] [2024-11-22 18:58:47,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435494135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:47,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:47,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:58:47,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799265138] [2024-11-22 18:58:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:47,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:58:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:47,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:58:47,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:58:47,072 INFO L87 Difference]: Start difference. First operand 1415 states and 1995 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 18:58:48,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:48,018 INFO L93 Difference]: Finished difference Result 1591 states and 2008 transitions. [2024-11-22 18:58:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:58:48,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2024-11-22 18:58:48,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:48,024 INFO L225 Difference]: With dead ends: 1591 [2024-11-22 18:58:48,025 INFO L226 Difference]: Without dead ends: 1591 [2024-11-22 18:58:48,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:58:48,025 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 798 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:48,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 2784 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 18:58:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2024-11-22 18:58:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1414. [2024-11-22 18:58:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 942 states have (on average 1.7091295116772824) internal successors, (1610), 1152 states have internal predecessors, (1610), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-22 18:58:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1994 transitions. [2024-11-22 18:58:48,047 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1994 transitions. Word has length 84 [2024-11-22 18:58:48,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:48,047 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1994 transitions. [2024-11-22 18:58:48,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 18:58:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1994 transitions. [2024-11-22 18:58:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 18:58:48,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:48,048 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:58:48,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 18:58:48,048 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:48,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403803, now seen corresponding path program 1 times [2024-11-22 18:58:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936054524] [2024-11-22 18:58:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:48,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-22 18:58:50,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:50,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936054524] [2024-11-22 18:58:50,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936054524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:50,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:50,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 18:58:50,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597431860] [2024-11-22 18:58:50,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:50,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 18:58:50,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:50,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 18:58:50,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:58:50,888 INFO L87 Difference]: Start difference. First operand 1414 states and 1994 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-22 18:58:52,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:52,301 INFO L93 Difference]: Finished difference Result 1658 states and 2020 transitions. [2024-11-22 18:58:52,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:58:52,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2024-11-22 18:58:52,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:52,309 INFO L225 Difference]: With dead ends: 1658 [2024-11-22 18:58:52,312 INFO L226 Difference]: Without dead ends: 1658 [2024-11-22 18:58:52,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:58:52,312 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 1619 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:52,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 2403 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 18:58:52,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-11-22 18:58:52,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1412. [2024-11-22 18:58:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 942 states have (on average 1.7070063694267517) internal successors, (1608), 1150 states have internal predecessors, (1608), 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) [2024-11-22 18:58:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1992 transitions. [2024-11-22 18:58:52,339 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1992 transitions. Word has length 84 [2024-11-22 18:58:52,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:52,339 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 1992 transitions. [2024-11-22 18:58:52,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-22 18:58:52,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1992 transitions. [2024-11-22 18:58:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 18:58:52,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:52,341 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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] [2024-11-22 18:58:52,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 18:58:52,341 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:52,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:52,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1179483396, now seen corresponding path program 1 times [2024-11-22 18:58:52,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:52,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768113413] [2024-11-22 18:58:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:52,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-22 18:58:54,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:54,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768113413] [2024-11-22 18:58:54,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768113413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:54,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:54,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:58:54,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696180923] [2024-11-22 18:58:54,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:54,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:58:54,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:54,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:58:54,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:54,501 INFO L87 Difference]: Start difference. First operand 1412 states and 1992 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:58:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:55,133 INFO L93 Difference]: Finished difference Result 1587 states and 2004 transitions. [2024-11-22 18:58:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:58:55,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 90 [2024-11-22 18:58:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:55,136 INFO L225 Difference]: With dead ends: 1587 [2024-11-22 18:58:55,136 INFO L226 Difference]: Without dead ends: 1587 [2024-11-22 18:58:55,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:55,140 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 790 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:55,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2236 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 18:58:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-11-22 18:58:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1410. [2024-11-22 18:58:55,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 942 states have (on average 1.7048832271762209) internal successors, (1606), 1148 states have internal predecessors, (1606), 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) [2024-11-22 18:58:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1990 transitions. [2024-11-22 18:58:55,155 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1990 transitions. Word has length 90 [2024-11-22 18:58:55,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:55,155 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1990 transitions. [2024-11-22 18:58:55,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:58:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1990 transitions. [2024-11-22 18:58:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 18:58:55,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:55,159 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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] [2024-11-22 18:58:55,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 18:58:55,159 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:55,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1179483397, now seen corresponding path program 1 times [2024-11-22 18:58:55,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:55,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952147968] [2024-11-22 18:58:55,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:55,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:58:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-22 18:58:57,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:58:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952147968] [2024-11-22 18:58:57,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952147968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:58:57,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:58:57,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:58:57,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908883823] [2024-11-22 18:58:57,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:58:57,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:58:57,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:58:57,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:58:57,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:57,453 INFO L87 Difference]: Start difference. First operand 1410 states and 1990 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 18:58:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:58:57,852 INFO L93 Difference]: Finished difference Result 1408 states and 1987 transitions. [2024-11-22 18:58:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:58:57,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2024-11-22 18:58:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:58:57,855 INFO L225 Difference]: With dead ends: 1408 [2024-11-22 18:58:57,855 INFO L226 Difference]: Without dead ends: 1408 [2024-11-22 18:58:57,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:58:57,856 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 55 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 18:58:57,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1978 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 18:58:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2024-11-22 18:58:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1408. [2024-11-22 18:58:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 942 states have (on average 1.7016985138004246) internal successors, (1603), 1146 states have internal predecessors, (1603), 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) [2024-11-22 18:58:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1987 transitions. [2024-11-22 18:58:57,871 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1987 transitions. Word has length 90 [2024-11-22 18:58:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:58:57,871 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1987 transitions. [2024-11-22 18:58:57,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 18:58:57,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1987 transitions. [2024-11-22 18:58:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 18:58:57,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:58:57,872 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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] [2024-11-22 18:58:57,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 18:58:57,872 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:58:57,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:58:57,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2090719882, now seen corresponding path program 1 times [2024-11-22 18:58:57,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:58:57,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210613184] [2024-11-22 18:58:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:58:57,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:58:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:59:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-22 18:59:00,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:59:00,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210613184] [2024-11-22 18:59:00,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210613184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:59:00,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:59:00,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:59:00,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561684780] [2024-11-22 18:59:00,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:59:00,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:59:00,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:59:00,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:59:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:59:00,083 INFO L87 Difference]: Start difference. First operand 1408 states and 1987 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:59:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:59:00,846 INFO L93 Difference]: Finished difference Result 1583 states and 1999 transitions. [2024-11-22 18:59:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:59:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 91 [2024-11-22 18:59:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:59:00,849 INFO L225 Difference]: With dead ends: 1583 [2024-11-22 18:59:00,849 INFO L226 Difference]: Without dead ends: 1583 [2024-11-22 18:59:00,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:59:00,849 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 1423 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 18:59:00,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 2173 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 18:59:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-11-22 18:59:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1406. [2024-11-22 18:59:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 942 states have (on average 1.6995753715498938) internal successors, (1601), 1144 states have internal predecessors, (1601), 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) [2024-11-22 18:59:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1985 transitions. [2024-11-22 18:59:00,863 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1985 transitions. Word has length 91 [2024-11-22 18:59:00,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:59:00,863 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 1985 transitions. [2024-11-22 18:59:00,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:59:00,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1985 transitions. [2024-11-22 18:59:00,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 18:59:00,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:59:00,864 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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] [2024-11-22 18:59:00,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 18:59:00,864 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:59:00,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:59:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2090719881, now seen corresponding path program 1 times [2024-11-22 18:59:00,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:59:00,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520543727] [2024-11-22 18:59:00,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:59:00,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:59:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:59:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-22 18:59:03,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:59:03,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520543727] [2024-11-22 18:59:03,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520543727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:59:03,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:59:03,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:59:03,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884903379] [2024-11-22 18:59:03,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:59:03,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:59:03,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:59:03,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:59:03,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:59:03,244 INFO L87 Difference]: Start difference. First operand 1406 states and 1985 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:59:04,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:59:04,374 INFO L93 Difference]: Finished difference Result 1650 states and 2011 transitions. [2024-11-22 18:59:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:59:04,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 91 [2024-11-22 18:59:04,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:59:04,377 INFO L225 Difference]: With dead ends: 1650 [2024-11-22 18:59:04,378 INFO L226 Difference]: Without dead ends: 1650 [2024-11-22 18:59:04,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:59:04,378 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 1025 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:59:04,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 2294 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 18:59:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-22 18:59:04,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1404. [2024-11-22 18:59:04,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 942 states have (on average 1.697452229299363) internal successors, (1599), 1142 states have internal predecessors, (1599), 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) [2024-11-22 18:59:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1983 transitions. [2024-11-22 18:59:04,392 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1983 transitions. Word has length 91 [2024-11-22 18:59:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:59:04,393 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1983 transitions. [2024-11-22 18:59:04,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:59:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1983 transitions. [2024-11-22 18:59:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 18:59:04,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:59:04,393 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-22 18:59:04,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 18:59:04,394 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting cdev_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:59:04,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:59:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash 487667134, now seen corresponding path program 1 times [2024-11-22 18:59:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:59:04,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921321709] [2024-11-22 18:59:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:59:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:59:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:59:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-22 18:59:06,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:59:06,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921321709] [2024-11-22 18:59:06,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921321709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:59:06,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:59:06,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:59:06,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523869082] [2024-11-22 18:59:06,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:59:06,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:59:06,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:59:06,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:59:06,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:59:06,420 INFO L87 Difference]: Start difference. First operand 1404 states and 1983 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 18:59:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:59:06,719 INFO L93 Difference]: Finished difference Result 1404 states and 1981 transitions. [2024-11-22 18:59:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:59:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2024-11-22 18:59:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:59:06,722 INFO L225 Difference]: With dead ends: 1404 [2024-11-22 18:59:06,722 INFO L226 Difference]: Without dead ends: 1404 [2024-11-22 18:59:06,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:59:06,723 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 789 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:59:06,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2247 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:59:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-11-22 18:59:06,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2024-11-22 18:59:06,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 942 states have (on average 1.6953290870488322) internal successors, (1597), 1142 states have internal predecessors, (1597), 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) [2024-11-22 18:59:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1981 transitions. [2024-11-22 18:59:06,737 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1981 transitions. Word has length 99 [2024-11-22 18:59:06,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:59:06,737 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1981 transitions. [2024-11-22 18:59:06,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 18:59:06,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1981 transitions. [2024-11-22 18:59:06,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 18:59:06,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:59:06,738 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:59:06,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 18:59:06,738 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting cdev_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:59:06,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:59:06,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1522568673, now seen corresponding path program 1 times [2024-11-22 18:59:06,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:59:06,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560612953] [2024-11-22 18:59:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:59:06,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:59:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:59:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-22 18:59:09,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:59:09,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560612953] [2024-11-22 18:59:09,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560612953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:59:09,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:59:09,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 18:59:09,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907867626] [2024-11-22 18:59:09,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:59:09,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 18:59:09,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:59:09,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 18:59:09,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 18:59:09,537 INFO L87 Difference]: Start difference. First operand 1404 states and 1981 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:59:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:59:10,474 INFO L93 Difference]: Finished difference Result 1405 states and 1982 transitions. [2024-11-22 18:59:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:59:10,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 101 [2024-11-22 18:59:10,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:59:10,477 INFO L225 Difference]: With dead ends: 1405 [2024-11-22 18:59:10,477 INFO L226 Difference]: Without dead ends: 1405 [2024-11-22 18:59:10,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-22 18:59:10,478 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 73 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 4076 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 18:59:10,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 4076 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 18:59:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-11-22 18:59:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1402. [2024-11-22 18:59:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 942 states have (on average 1.6932059447983014) internal successors, (1595), 1140 states have internal predecessors, (1595), 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) [2024-11-22 18:59:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1979 transitions. [2024-11-22 18:59:10,490 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1979 transitions. Word has length 101 [2024-11-22 18:59:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:59:10,491 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1979 transitions. [2024-11-22 18:59:10,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 18:59:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1979 transitions. [2024-11-22 18:59:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 18:59:10,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:59:10,491 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:59:10,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 18:59:10,492 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting cdev_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-22 18:59:10,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:59:10,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1522568672, now seen corresponding path program 1 times [2024-11-22 18:59:10,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:59:10,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874050150] [2024-11-22 18:59:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:59:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms