./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 13:38:08,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 13:38:08,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 13:38:08,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 13:38:08,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 13:38:08,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 13:38:08,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 13:38:08,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 13:38:08,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 13:38:08,150 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 13:38:08,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 13:38:08,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 13:38:08,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 13:38:08,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 13:38:08,151 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 13:38:08,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 13:38:08,152 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 13:38:08,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 13:38:08,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 13:38:08,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 13:38:08,152 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 13:38:08,154 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 13:38:08,155 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 13:38:08,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 13:38:08,155 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 13:38:08,155 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 13:38:08,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 13:38:08,156 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 13:38:08,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 13:38:08,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 13:38:08,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 13:38:08,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 13:38:08,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 13:38:08,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 13:38:08,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 13:38:08,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 13:38:08,157 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 13:38:08,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 13:38:08,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 13:38:08,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 13:38:08,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 13:38:08,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 13:38:08,160 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 [2024-11-12 13:38:08,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 13:38:08,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 13:38:08,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 13:38:08,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 13:38:08,443 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 13:38:08,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-12 13:38:09,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 13:38:10,213 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 13:38:10,215 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-12 13:38:10,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6096245ae/4fb867c6ceb1435fbf9d9cb08f68891c/FLAG0afd0ca3b [2024-11-12 13:38:10,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6096245ae/4fb867c6ceb1435fbf9d9cb08f68891c [2024-11-12 13:38:10,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 13:38:10,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 13:38:10,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 13:38:10,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 13:38:10,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 13:38:10,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:38:10" (1/1) ... [2024-11-12 13:38:10,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7d824c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:10, skipping insertion in model container [2024-11-12 13:38:10,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:38:10" (1/1) ... [2024-11-12 13:38:10,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 13:38:11,362 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:38:11,387 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:38:11,412 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:38:11,494 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:38:11,535 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:38:11,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 13:38:11,605 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 13:38:11,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 13:38:11,996 INFO L204 MainTranslator]: Completed translation [2024-11-12 13:38:11,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11 WrapperNode [2024-11-12 13:38:11,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 13:38:11,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 13:38:11,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 13:38:11,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 13:38:12,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,297 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-12 13:38:12,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 13:38:12,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 13:38:12,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 13:38:12,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 13:38:12,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,332 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,405 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 35, 1040, 480, 59, 35, 11, 5, 15, 120, 67, 37, 2, 20, 4, 0, 2, 3, 2, 5, 16, 18, 2, 12, 34, 5]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 3, 15, 1040, 480, 59, 32, 2, 1, 10, 120, 67, 25, 2, 4, 4, 0, 0, 0, 0, 4, 5, 18, 0, 6, 34, 1]. The 37 writes are split as follows [0, 0, 6, 0, 0, 0, 0, 5, 1, 2, 0, 0, 0, 0, 4, 0, 0, 0, 0, 1, 0, 8, 0, 2, 6, 0, 2]. [2024-11-12 13:38:12,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 13:38:12,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 13:38:12,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 13:38:12,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 13:38:12,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (1/1) ... [2024-11-12 13:38:12,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 13:38:12,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:38:12,613 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) [2024-11-12 13:38:12,617 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 [2024-11-12 13:38:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-12 13:38:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-12 13:38:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 13:38:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-12 13:38:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-12 13:38:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-12 13:38:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 13:38:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-12 13:38:12,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-12 13:38:12,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 13:38:12,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-12 13:38:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-12 13:38:12,666 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-12 13:38:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 13:38:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 13:38:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-12 13:38:12,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-12 13:38:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-12 13:38:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-12 13:38:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-12 13:38:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-12 13:38:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-12 13:38:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-12 13:38:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-12 13:38:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-12 13:38:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 13:38:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-12 13:38:12,672 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-12 13:38:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 13:38:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 13:38:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 13:38:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 13:38:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 13:38:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-12 13:38:12,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-12 13:38:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-12 13:38:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-12 13:38:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-12 13:38:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-12 13:38:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-12 13:38:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-12 13:38:12,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-12 13:38:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-12 13:38:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-12 13:38:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-12 13:38:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-12 13:38:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-12 13:38:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-12 13:38:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-12 13:38:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-12 13:38:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-12 13:38:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-12 13:38:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 13:38:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 13:38:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-12 13:38:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 13:38:12,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-12 13:38:12,679 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 13:38:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 13:38:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 13:38:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-12 13:38:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-12 13:38:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-12 13:38:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-12 13:38:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-12 13:38:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-12 13:38:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-12 13:38:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-12 13:38:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-12 13:38:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-12 13:38:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-12 13:38:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-12 13:38:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-12 13:38:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-12 13:38:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-12 13:38:12,685 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-12 13:38:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-12 13:38:12,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-12 13:38:12,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-12 13:38:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-12 13:38:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-12 13:38:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-12 13:38:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-12 13:38:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-12 13:38:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-12 13:38:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-12 13:38:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-12 13:38:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-12 13:38:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-12 13:38:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-12 13:38:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-12 13:38:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-12 13:38:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-12 13:38:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-12 13:38:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-12 13:38:12,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-12 13:38:12,690 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-12 13:38:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-12 13:38:12,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-12 13:38:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-12 13:38:12,691 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-12 13:38:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-12 13:38:12,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-12 13:38:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-12 13:38:12,692 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-12 13:38:12,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-12 13:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-12 13:38:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-12 13:38:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-12 13:38:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-12 13:38:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-12 13:38:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-12 13:38:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-12 13:38:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-12 13:38:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-12 13:38:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 13:38:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 13:38:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 13:38:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 13:38:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 13:38:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 13:38:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 13:38:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-12 13:38:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-12 13:38:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-12 13:38:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-12 13:38:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-12 13:38:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-12 13:38:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-12 13:38:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-12 13:38:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-12 13:38:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-12 13:38:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-12 13:38:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-12 13:38:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-12 13:38:13,136 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 13:38:13,139 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 13:38:17,628 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-12 13:38:17,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 13:38:17,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 13:38:17,681 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-12 13:38:17,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:38:17 BoogieIcfgContainer [2024-11-12 13:38:17,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 13:38:17,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 13:38:17,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 13:38:17,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 13:38:17,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:38:10" (1/3) ... [2024-11-12 13:38:17,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4771326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:38:17, skipping insertion in model container [2024-11-12 13:38:17,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:38:11" (2/3) ... [2024-11-12 13:38:17,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4771326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:38:17, skipping insertion in model container [2024-11-12 13:38:17,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:38:17" (3/3) ... [2024-11-12 13:38:17,693 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb.i [2024-11-12 13:38:17,708 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 13:38:17,709 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-12 13:38:17,780 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 13:38:17,789 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;@71cf06c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 13:38:17,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-12 13:38:17,799 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) [2024-11-12 13:38:17,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-12 13:38:17,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:17,805 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 13:38:17,806 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)] === [2024-11-12 13:38:17,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-12 13:38:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:17,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776609150] [2024-11-12 13:38:17,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:17,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:21,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:21,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776609150] [2024-11-12 13:38:21,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776609150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:21,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:21,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:38:21,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96866405] [2024-11-12 13:38:21,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:21,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:38:21,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:21,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:38:21,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:21,411 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) [2024-11-12 13:38:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:22,819 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-12 13:38:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:38:22,824 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 [2024-11-12 13:38:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:22,850 INFO L225 Difference]: With dead ends: 1270 [2024-11-12 13:38:22,850 INFO L226 Difference]: Without dead ends: 1266 [2024-11-12 13:38:22,852 INFO L434 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 [2024-11-12 13:38:22,855 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:22,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-12 13:38:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-12 13:38:22,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-12 13:38:22,975 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) [2024-11-12 13:38:22,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-12 13:38:22,985 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-12 13:38:22,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:22,987 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-12 13:38:22,990 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) [2024-11-12 13:38:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-12 13:38:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-12 13:38:22,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:22,990 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 13:38:22,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 13:38:22,991 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)] === [2024-11-12 13:38:22,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-12 13:38:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:22,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203383296] [2024-11-12 13:38:22,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:26,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:26,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203383296] [2024-11-12 13:38:26,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203383296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:26,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:26,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:38:26,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471031963] [2024-11-12 13:38:26,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:26,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:38:26,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:38:26,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:26,184 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) [2024-11-12 13:38:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:27,207 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-12 13:38:27,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:38:27,208 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 [2024-11-12 13:38:27,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:27,218 INFO L225 Difference]: With dead ends: 1193 [2024-11-12 13:38:27,219 INFO L226 Difference]: Without dead ends: 1193 [2024-11-12 13:38:27,220 INFO L434 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 [2024-11-12 13:38:27,221 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:27,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 13:38:27,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-12 13:38:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-12 13:38:27,257 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) [2024-11-12 13:38:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-12 13:38:27,263 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-12 13:38:27,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:27,263 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-12 13:38:27,264 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) [2024-11-12 13:38:27,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-12 13:38:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 13:38:27,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:27,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:38:27,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 13:38:27,265 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)] === [2024-11-12 13:38:27,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-12 13:38:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:27,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064580614] [2024-11-12 13:38:27,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:29,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:29,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064580614] [2024-11-12 13:38:29,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064580614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:29,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:29,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:38:29,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927425591] [2024-11-12 13:38:29,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:29,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:38:29,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:38:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:38:29,533 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:30,886 INFO L93 Difference]: Finished difference Result 1360 states and 1649 transitions. [2024-11-12 13:38:30,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:38:30,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-12 13:38:30,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:30,894 INFO L225 Difference]: With dead ends: 1360 [2024-11-12 13:38:30,894 INFO L226 Difference]: Without dead ends: 1360 [2024-11-12 13:38:30,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:30,895 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 868 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:30,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1529 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-12 13:38:30,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-12 13:38:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1133. [2024-11-12 13:38:30,928 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) [2024-11-12 13:38:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-12 13:38:30,935 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-12 13:38:30,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:30,935 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-12 13:38:30,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-12 13:38:30,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 13:38:30,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:30,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:38:30,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 13:38:30,937 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)] === [2024-11-12 13:38:30,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-12 13:38:30,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:30,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150246033] [2024-11-12 13:38:30,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:30,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:33,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:33,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:33,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:33,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150246033] [2024-11-12 13:38:33,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150246033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:33,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:33,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:38:33,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479684611] [2024-11-12 13:38:33,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:33,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:38:33,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:38:33,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:33,560 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:34,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:34,727 INFO L93 Difference]: Finished difference Result 1217 states and 1572 transitions. [2024-11-12 13:38:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:38:34,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-12 13:38:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:34,736 INFO L225 Difference]: With dead ends: 1217 [2024-11-12 13:38:34,736 INFO L226 Difference]: Without dead ends: 1217 [2024-11-12 13:38:34,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:38:34,737 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 407 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:34,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1880 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-12 13:38:34,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-12 13:38:34,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1136. [2024-11-12 13:38:34,772 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) [2024-11-12 13:38:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-12 13:38:34,776 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-12 13:38:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:34,777 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-12 13:38:34,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-12 13:38:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-12 13:38:34,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:34,778 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:38:34,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 13:38:34,779 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)] === [2024-11-12 13:38:34,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:34,779 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-12 13:38:34,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:34,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816805112] [2024-11-12 13:38:34,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:34,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:37,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:37,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816805112] [2024-11-12 13:38:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816805112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:38:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746598782] [2024-11-12 13:38:37,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:37,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:38:37,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:38:37,652 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) [2024-11-12 13:38:37,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 13:38:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:40,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-12 13:38:40,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:38:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:40,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:38:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:40,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746598782] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:38:40,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:38:40,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-12 13:38:40,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181228039] [2024-11-12 13:38:40,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:38:40,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 13:38:40,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 13:38:40,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-12 13:38:40,795 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 13:38:43,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:43,714 INFO L93 Difference]: Finished difference Result 1437 states and 1816 transitions. [2024-11-12 13:38:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 13:38:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-12 13:38:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:43,722 INFO L225 Difference]: With dead ends: 1437 [2024-11-12 13:38:43,722 INFO L226 Difference]: Without dead ends: 1437 [2024-11-12 13:38:43,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-12 13:38:43,724 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 882 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 3568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:43,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 4490 Invalid, 3568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-12 13:38:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-12 13:38:43,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1289. [2024-11-12 13:38:43,757 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) [2024-11-12 13:38:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-12 13:38:43,762 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-12 13:38:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:43,762 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-12 13:38:43,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 13:38:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-12 13:38:43,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-12 13:38:43,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:43,764 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:38:43,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 13:38:43,964 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 [2024-11-12 13:38:43,965 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)] === [2024-11-12 13:38:43,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-12 13:38:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:43,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697671965] [2024-11-12 13:38:43,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:43,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:45,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:46,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-12 13:38:46,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:46,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697671965] [2024-11-12 13:38:46,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697671965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:46,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:46,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:38:46,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876343604] [2024-11-12 13:38:46,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:46,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:38:46,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:38:46,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:38:46,007 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:47,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:47,190 INFO L93 Difference]: Finished difference Result 1521 states and 1891 transitions. [2024-11-12 13:38:47,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:38:47,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-12 13:38:47,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:47,197 INFO L225 Difference]: With dead ends: 1521 [2024-11-12 13:38:47,197 INFO L226 Difference]: Without dead ends: 1521 [2024-11-12 13:38:47,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:47,198 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 853 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:47,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1540 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-12 13:38:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-12 13:38:47,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1287. [2024-11-12 13:38:47,225 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) [2024-11-12 13:38:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-12 13:38:47,230 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-12 13:38:47,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:47,230 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-12 13:38:47,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-12 13:38:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-12 13:38:47,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:47,232 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:38:47,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 13:38:47,232 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)] === [2024-11-12 13:38:47,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-12 13:38:47,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:47,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964663554] [2024-11-12 13:38:47,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:47,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:49,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:49,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:49,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964663554] [2024-11-12 13:38:49,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964663554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:38:49,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30997988] [2024-11-12 13:38:49,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:49,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:38:49,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:38:49,395 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) [2024-11-12 13:38:49,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 13:38:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:52,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 13:38:52,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:38:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:52,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:38:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:38:52,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30997988] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:38:52,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:38:52,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-12 13:38:52,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383336164] [2024-11-12 13:38:52,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:38:52,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 13:38:52,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 13:38:52,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-12 13:38:52,155 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:52,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:52,770 INFO L93 Difference]: Finished difference Result 1329 states and 1807 transitions. [2024-11-12 13:38:52,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 13:38:52,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-12 13:38:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:52,775 INFO L225 Difference]: With dead ends: 1329 [2024-11-12 13:38:52,776 INFO L226 Difference]: Without dead ends: 1329 [2024-11-12 13:38:52,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-12 13:38:52,777 INFO L435 NwaCegarLoop]: 719 mSDtfsCounter, 151 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:52,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3294 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 13:38:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-12 13:38:52,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1305. [2024-11-12 13:38:52,800 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) [2024-11-12 13:38:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-12 13:38:52,804 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-12 13:38:52,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:52,805 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-12 13:38:52,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:52,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-12 13:38:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-12 13:38:52,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:52,806 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:38:52,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 13:38:53,007 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 [2024-11-12 13:38:53,007 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)] === [2024-11-12 13:38:53,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:53,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-12 13:38:53,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:53,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104268229] [2024-11-12 13:38:53,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:53,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:55,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 13:38:55,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:55,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104268229] [2024-11-12 13:38:55,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104268229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:55,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:55,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:38:55,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691373570] [2024-11-12 13:38:55,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:55,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:38:55,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:55,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:38:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:55,404 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:56,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:56,478 INFO L93 Difference]: Finished difference Result 1385 states and 1819 transitions. [2024-11-12 13:38:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:38:56,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-11-12 13:38:56,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:56,483 INFO L225 Difference]: With dead ends: 1385 [2024-11-12 13:38:56,483 INFO L226 Difference]: Without dead ends: 1385 [2024-11-12 13:38:56,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:38:56,484 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 377 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:56,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1860 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 13:38:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-12 13:38:56,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1303. [2024-11-12 13:38:56,507 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) [2024-11-12 13:38:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-12 13:38:56,512 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-12 13:38:56,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:56,512 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-12 13:38:56,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 13:38:56,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-12 13:38:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-12 13:38:56,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:56,514 INFO L218 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] [2024-11-12 13:38:56,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 13:38:56,515 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)] === [2024-11-12 13:38:56,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-12 13:38:56,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:56,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240515844] [2024-11-12 13:38:56,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:56,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:38:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:58,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:38:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 13:38:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:58,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 13:38:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:58,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 13:38:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:38:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-12 13:38:58,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:38:58,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240515844] [2024-11-12 13:38:58,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240515844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:38:58,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:38:58,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:38:58,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609251382] [2024-11-12 13:38:58,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:38:58,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:38:58,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:38:58,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:38:58,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:38:58,771 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 13:38:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:38:59,199 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2024-11-12 13:38:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:38:59,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-12 13:38:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:38:59,204 INFO L225 Difference]: With dead ends: 1326 [2024-11-12 13:38:59,204 INFO L226 Difference]: Without dead ends: 1326 [2024-11-12 13:38:59,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:38:59,205 INFO L435 NwaCegarLoop]: 716 mSDtfsCounter, 883 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:38:59,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1274 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 13:38:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-12 13:38:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2024-11-12 13:38:59,254 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) [2024-11-12 13:38:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-12 13:38:59,259 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-12 13:38:59,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:38:59,259 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-12 13:38:59,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 13:38:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-12 13:38:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-12 13:38:59,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:38:59,262 INFO L218 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] [2024-11-12 13:38:59,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 13:38:59,262 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)] === [2024-11-12 13:38:59,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:38:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-12 13:38:59,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:38:59,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336789964] [2024-11-12 13:38:59,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:38:59,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:39:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:01,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:39:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:01,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 13:39:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:01,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 13:39:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:01,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 13:39:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-12 13:39:01,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:39:01,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336789964] [2024-11-12 13:39:01,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336789964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:39:01,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:39:01,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:39:01,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537332694] [2024-11-12 13:39:01,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:39:01,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:39:01,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:39:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:39:01,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:39:01,382 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:39:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:39:02,127 INFO L93 Difference]: Finished difference Result 1325 states and 1801 transitions. [2024-11-12 13:39:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:39:02,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2024-11-12 13:39:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:39:02,133 INFO L225 Difference]: With dead ends: 1325 [2024-11-12 13:39:02,134 INFO L226 Difference]: Without dead ends: 1325 [2024-11-12 13:39:02,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:39:02,135 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 139 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 13:39:02,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1769 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 13:39:02,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-12 13:39:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1301. [2024-11-12 13:39:02,156 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) [2024-11-12 13:39:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-12 13:39:02,160 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-12 13:39:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:39:02,161 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-12 13:39:02,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:39:02,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-12 13:39:02,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-12 13:39:02,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:39:02,162 INFO L218 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] [2024-11-12 13:39:02,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 13:39:02,162 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)] === [2024-11-12 13:39:02,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:39:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-12 13:39:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:39:02,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308195750] [2024-11-12 13:39:02,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:39:02,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:39:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:04,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:39:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:04,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 13:39:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:04,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 13:39:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:04,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 13:39:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-12 13:39:04,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:39:04,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308195750] [2024-11-12 13:39:04,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308195750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:39:04,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:39:04,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:39:04,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207218478] [2024-11-12 13:39:04,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:39:04,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:39:04,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:39:04,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:39:04,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:39:04,921 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 13:39:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:39:05,743 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2024-11-12 13:39:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:39:05,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-11-12 13:39:05,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:39:05,747 INFO L225 Difference]: With dead ends: 1324 [2024-11-12 13:39:05,747 INFO L226 Difference]: Without dead ends: 1324 [2024-11-12 13:39:05,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:39:05,748 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 878 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 13:39:05,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1759 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 13:39:05,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-12 13:39:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1300. [2024-11-12 13:39:05,769 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) [2024-11-12 13:39:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-12 13:39:05,773 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-12 13:39:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:39:05,773 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-12 13:39:05,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 13:39:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-12 13:39:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-12 13:39:05,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:39:05,774 INFO L218 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] [2024-11-12 13:39:05,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 13:39:05,775 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)] === [2024-11-12 13:39:05,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:39:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-12 13:39:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:39:05,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699024656] [2024-11-12 13:39:05,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:39:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:39:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:07,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:39:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:07,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 13:39:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:07,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 13:39:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:07,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 13:39:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:07,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 13:39:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-12 13:39:07,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:39:07,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699024656] [2024-11-12 13:39:07,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699024656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:39:07,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:39:07,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:39:07,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858377850] [2024-11-12 13:39:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:39:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:39:07,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:39:07,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:39:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:39:07,827 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 13:39:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:39:08,660 INFO L93 Difference]: Finished difference Result 1365 states and 1809 transitions. [2024-11-12 13:39:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:39:08,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2024-11-12 13:39:08,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:39:08,667 INFO L225 Difference]: With dead ends: 1365 [2024-11-12 13:39:08,667 INFO L226 Difference]: Without dead ends: 1352 [2024-11-12 13:39:08,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:39:08,668 INFO L435 NwaCegarLoop]: 705 mSDtfsCounter, 233 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 13:39:08,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1706 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 13:39:08,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-12 13:39:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1295. [2024-11-12 13:39:08,693 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) [2024-11-12 13:39:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-12 13:39:08,697 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-12 13:39:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:39:08,697 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-12 13:39:08,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 13:39:08,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-12 13:39:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-12 13:39:08,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:39:08,699 INFO L218 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] [2024-11-12 13:39:08,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 13:39:08,699 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)] === [2024-11-12 13:39:08,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:39:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-12 13:39:08,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:39:08,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381137277] [2024-11-12 13:39:08,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:39:08,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:39:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:11,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:39:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 13:39:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:11,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 13:39:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:11,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 13:39:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:11,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 13:39:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-12 13:39:11,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:39:11,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381137277] [2024-11-12 13:39:11,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381137277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:39:11,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551011105] [2024-11-12 13:39:11,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:39:11,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:39:11,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:39:11,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:39:11,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 13:39:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:14,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 13:39:14,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:39:14,604 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-12 13:39:14,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-12 13:39:14,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-12 13:39:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-12 13:39:14,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:39:14,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551011105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:39:14,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 13:39:14,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-12 13:39:14,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860651661] [2024-11-12 13:39:14,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 13:39:14,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 13:39:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:39:14,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 13:39:14,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-12 13:39:14,739 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-12 13:39:17,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:39:17,263 INFO L93 Difference]: Finished difference Result 1890 states and 2482 transitions. [2024-11-12 13:39:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 13:39:17,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2024-11-12 13:39:17,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:39:17,271 INFO L225 Difference]: With dead ends: 1890 [2024-11-12 13:39:17,271 INFO L226 Difference]: Without dead ends: 1890 [2024-11-12 13:39:17,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-12 13:39:17,272 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 942 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:39:17,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4025 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-12 13:39:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-12 13:39:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1634. [2024-11-12 13:39:17,306 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) [2024-11-12 13:39:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-12 13:39:17,311 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-12 13:39:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:39:17,311 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-12 13:39:17,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-12 13:39:17,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-12 13:39:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-12 13:39:17,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:39:17,312 INFO L218 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] [2024-11-12 13:39:17,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 13:39:17,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:39:17,513 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)] === [2024-11-12 13:39:17,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:39:17,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-12 13:39:17,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:39:17,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711138060] [2024-11-12 13:39:17,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:39:17,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:39:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:20,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 13:39:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 13:39:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:20,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 13:39:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:20,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 13:39:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:20,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 13:39:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:39:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-12 13:39:20,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:39:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711138060] [2024-11-12 13:39:20,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711138060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:39:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382758306] [2024-11-12 13:39:20,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:39:20,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:39:20,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:39:20,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:39:20,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process