./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 08:01:24,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 08:01:24,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 08:01:24,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 08:01:25,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 08:01:25,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 08:01:25,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 08:01:25,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 08:01:25,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 08:01:25,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 08:01:25,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 08:01:25,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 08:01:25,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 08:01:25,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 08:01:25,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 08:01:25,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 08:01:25,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 08:01:25,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 08:01:25,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 08:01:25,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 08:01:25,033 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 08:01:25,033 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 08:01:25,034 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 08:01:25,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 08:01:25,034 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 08:01:25,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 08:01:25,035 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 08:01:25,035 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 08:01:25,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 08:01:25,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 08:01:25,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 08:01:25,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 08:01:25,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 08:01:25,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 08:01:25,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 08:01:25,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 08:01:25,038 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 08:01:25,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 08:01:25,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 08:01:25,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 08:01:25,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 08:01:25,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 08:01:25,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2024-11-09 08:01:25,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 08:01:25,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 08:01:25,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 08:01:25,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 08:01:25,297 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 08:01:25,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2024-11-09 08:01:26,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 08:01:27,063 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 08:01:27,064 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2024-11-09 08:01:27,098 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b2d3754/f3ae472aa4fb47cfae04b345380b5e70/FLAGa5ec75bea [2024-11-09 08:01:27,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b2d3754/f3ae472aa4fb47cfae04b345380b5e70 [2024-11-09 08:01:27,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 08:01:27,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 08:01:27,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 08:01:27,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 08:01:27,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 08:01:27,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:01:27" (1/1) ... [2024-11-09 08:01:27,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2f1e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:27, skipping insertion in model container [2024-11-09 08:01:27,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:01:27" (1/1) ... [2024-11-09 08:01:27,373 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 08:01:28,285 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:01:28,358 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:01:28,399 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:01:28,463 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:01:28,503 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 08:01:28,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 08:01:28,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 08:01:28,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 08:01:28,944 INFO L204 MainTranslator]: Completed translation [2024-11-09 08:01:28,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28 WrapperNode [2024-11-09 08:01:28,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 08:01:28,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 08:01:28,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 08:01:28,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 08:01:28,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,169 INFO L138 Inliner]: procedures = 472, calls = 2682, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-09 08:01:29,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 08:01:29,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 08:01:29,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 08:01:29,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 08:01:29,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,293 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 37, 35, 12, 1040, 480, 59, 35, 0, 11, 5, 15, 5, 120, 67, 2, 2, 2, 20, 4, 3, 2, 18, 34, 5, 16]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 3, 25, 15, 6, 1040, 480, 59, 32, 0, 2, 1, 10, 4, 120, 67, 0, 0, 2, 4, 4, 0, 0, 18, 34, 1, 5]. The 37 writes are split as follows [0, 0, 0, 6, 6, 0, 0, 0, 0, 0, 5, 1, 2, 0, 0, 0, 1, 2, 0, 4, 0, 0, 0, 0, 0, 2, 8]. [2024-11-09 08:01:29,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 08:01:29,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 08:01:29,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 08:01:29,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 08:01:29,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (1/1) ... [2024-11-09 08:01:29,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 08:01:29,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:29,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 08:01:29,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 08:01:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-09 08:01:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-09 08:01:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 08:01:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-09 08:01:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 08:01:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 08:01:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 08:01:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 08:01:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 08:01:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 08:01:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-09 08:01:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-09 08:01:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-09 08:01:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 08:01:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 08:01:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 08:01:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-09 08:01:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-09 08:01:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-09 08:01:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-09 08:01:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-09 08:01:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-09 08:01:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-09 08:01:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-09 08:01:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-09 08:01:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-09 08:01:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-09 08:01:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-09 08:01:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-09 08:01:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-09 08:01:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-09 08:01:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 08:01:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 08:01:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-09 08:01:29,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-09 08:01:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-09 08:01:29,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-09 08:01:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-09 08:01:29,647 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-09 08:01:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 08:01:29,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 08:01:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-09 08:01:29,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-09 08:01:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 08:01:29,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 08:01:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-09 08:01:29,648 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-09 08:01:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 08:01:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 08:01:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 08:01:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 08:01:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 08:01:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 08:01:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 08:01:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-09 08:01:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-09 08:01:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-09 08:01:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-09 08:01:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-09 08:01:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-09 08:01:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-09 08:01:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-09 08:01:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 08:01:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 08:01:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-09 08:01:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-09 08:01:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 08:01:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-09 08:01:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 08:01:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 08:01:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 08:01:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-09 08:01:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 08:01:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 08:01:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-09 08:01:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-09 08:01:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 08:01:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 08:01:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-09 08:01:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-09 08:01:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-09 08:01:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-09 08:01:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-09 08:01:29,662 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-09 08:01:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 08:01:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 08:01:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-09 08:01:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-09 08:01:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-09 08:01:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-09 08:01:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-09 08:01:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-09 08:01:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-09 08:01:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-09 08:01:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-09 08:01:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-09 08:01:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-09 08:01:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-09 08:01:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-09 08:01:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-09 08:01:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 08:01:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-09 08:01:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 08:01:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 08:01:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 08:01:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 08:01:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 08:01:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 08:01:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 08:01:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 08:01:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-09 08:01:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-09 08:01:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-09 08:01:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-09 08:01:30,113 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 08:01:30,118 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 08:01:34,354 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-09 08:01:34,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 08:01:34,405 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 08:01:34,409 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 08:01:34,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:01:34 BoogieIcfgContainer [2024-11-09 08:01:34,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 08:01:34,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 08:01:34,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 08:01:34,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 08:01:34,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:01:27" (1/3) ... [2024-11-09 08:01:34,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d0ef87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:01:34, skipping insertion in model container [2024-11-09 08:01:34,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:01:28" (2/3) ... [2024-11-09 08:01:34,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d0ef87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:01:34, skipping insertion in model container [2024-11-09 08:01:34,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:01:34" (3/3) ... [2024-11-09 08:01:34,420 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_pthread_mutex_unlock.i [2024-11-09 08:01:34,438 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 08:01:34,438 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-09 08:01:34,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 08:01:34,504 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;@3f48ce56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 08:01:34,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-09 08:01:34,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 08:01:34,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 08:01:34,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:34,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 08:01:34,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:01:34,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-09 08:01:34,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:34,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16822035] [2024-11-09 08:01:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:34,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:38,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:38,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16822035] [2024-11-09 08:01:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16822035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:38,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:38,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:01:38,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128835193] [2024-11-09 08:01:38,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:38,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:01:38,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:38,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:01:38,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:01:38,121 INFO L87 Difference]: Start difference. First operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 08:01:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:39,469 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-09 08:01:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:01:39,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 08:01:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:39,502 INFO L225 Difference]: With dead ends: 1270 [2024-11-09 08:01:39,503 INFO L226 Difference]: Without dead ends: 1266 [2024-11-09 08:01:39,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 08:01:39,510 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:39,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 08:01:39,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-09 08:01:39,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-09 08:01:39,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 660 states have (on average 1.7606060606060605) internal successors, (1162), 882 states have internal predecessors, (1162), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-09 08:01:39,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-09 08:01:39,653 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-09 08:01:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:39,654 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-09 08:01:39,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 08:01:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-09 08:01:39,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 08:01:39,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:39,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 08:01:39,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 08:01:39,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:01:39,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-09 08:01:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:39,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100187605] [2024-11-09 08:01:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:39,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:43,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:43,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100187605] [2024-11-09 08:01:43,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100187605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:43,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:43,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:01:43,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695368576] [2024-11-09 08:01:43,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:43,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:01:43,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:43,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:01:43,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:01:43,011 INFO L87 Difference]: Start difference. First operand 1053 states and 1438 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 08:01:43,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:43,974 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-09 08:01:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:01:43,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 08:01:43,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:43,982 INFO L225 Difference]: With dead ends: 1193 [2024-11-09 08:01:43,982 INFO L226 Difference]: Without dead ends: 1193 [2024-11-09 08:01:43,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 08:01:43,984 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:43,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 08:01:43,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-09 08:01:44,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-09 08:01:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 709 states have (on average 1.7249647390691114) internal successors, (1223), 932 states have internal predecessors, (1223), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-09 08:01:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-09 08:01:44,030 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-09 08:01:44,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:44,031 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-09 08:01:44,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 08:01:44,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-09 08:01:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 08:01:44,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:44,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:01:44,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 08:01:44,032 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:01:44,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:44,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-09 08:01:44,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:44,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841051940] [2024-11-09 08:01:44,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:44,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:46,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:46,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:46,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841051940] [2024-11-09 08:01:46,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841051940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:46,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:46,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:01:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424873224] [2024-11-09 08:01:46,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:46,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:01:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:01:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:01:46,328 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:01:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:47,546 INFO L93 Difference]: Finished difference Result 1360 states and 1649 transitions. [2024-11-09 08:01:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:01:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-09 08:01:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:47,553 INFO L225 Difference]: With dead ends: 1360 [2024-11-09 08:01:47,553 INFO L226 Difference]: Without dead ends: 1360 [2024-11-09 08:01:47,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:01:47,557 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 868 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:47,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1529 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 08:01:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-09 08:01:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1133. [2024-11-09 08:01:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 709 states have (on average 1.7179125528913963) internal successors, (1218), 931 states have internal predecessors, (1218), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-09 08:01:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-09 08:01:47,601 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-09 08:01:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:47,601 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-09 08:01:47,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:01:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-09 08:01:47,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 08:01:47,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:47,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:01:47,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 08:01:47,603 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:01:47,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-09 08:01:47,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:47,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314361793] [2024-11-09 08:01:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:47,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:50,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:50,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:50,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:50,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314361793] [2024-11-09 08:01:50,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314361793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:01:50,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:01:50,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:01:50,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584031371] [2024-11-09 08:01:50,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:01:50,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:01:50,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:50,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:01:50,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:01:50,096 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:01:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:51,206 INFO L93 Difference]: Finished difference Result 1217 states and 1572 transitions. [2024-11-09 08:01:51,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 08:01:51,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-09 08:01:51,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:51,216 INFO L225 Difference]: With dead ends: 1217 [2024-11-09 08:01:51,217 INFO L226 Difference]: Without dead ends: 1217 [2024-11-09 08:01:51,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 08:01:51,218 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 407 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2024-11-09 08:01:51,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1880 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 08:01:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-09 08:01:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1136. [2024-11-09 08:01:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 712 states have (on average 1.7148876404494382) internal successors, (1221), 934 states have internal predecessors, (1221), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-09 08:01:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-09 08:01:51,263 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-09 08:01:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:51,263 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-09 08:01:51,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:01:51,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-09 08:01:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 08:01:51,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:51,265 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:01:51,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 08:01:51,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:01:51,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:51,266 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-09 08:01:51,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:51,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988549296] [2024-11-09 08:01:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:51,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:01:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:54,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:01:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:54,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:54,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:01:54,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988549296] [2024-11-09 08:01:54,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988549296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:01:54,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497861898] [2024-11-09 08:01:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:54,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:54,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:01:54,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 08:01:54,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 08:01:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:01:56,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 08:01:56,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:01:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:56,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:01:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:01:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497861898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 08:01:56,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 08:01:56,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-09 08:01:56,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846213506] [2024-11-09 08:01:56,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 08:01:56,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 08:01:56,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:01:56,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 08:01:56,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 08:01:56,852 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 08:01:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:01:59,556 INFO L93 Difference]: Finished difference Result 1437 states and 1816 transitions. [2024-11-09 08:01:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 08:01:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-09 08:01:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:01:59,564 INFO L225 Difference]: With dead ends: 1437 [2024-11-09 08:01:59,567 INFO L226 Difference]: Without dead ends: 1437 [2024-11-09 08:01:59,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-09 08:01:59,569 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 882 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 08:01:59,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 4490 Invalid, 3568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 08:01:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-09 08:01:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1289. [2024-11-09 08:01:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 823 states have (on average 1.701093560145808) internal successors, (1400), 1046 states have internal predecessors, (1400), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:01:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-09 08:01:59,606 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-09 08:01:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:01:59,606 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-09 08:01:59,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 08:01:59,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-09 08:01:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 08:01:59,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:01:59,608 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:01:59,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 08:01:59,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:01:59,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:01:59,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:01:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-09 08:01:59,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:01:59,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521383887] [2024-11-09 08:01:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:01:59,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:01,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 08:02:01,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:01,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521383887] [2024-11-09 08:02:01,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521383887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:02:01,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:02:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:02:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145561200] [2024-11-09 08:02:01,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:02:01,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:02:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:02:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:02:01,746 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:02:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:02,957 INFO L93 Difference]: Finished difference Result 1521 states and 1891 transitions. [2024-11-09 08:02:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:02:02,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 08:02:02,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:02,963 INFO L225 Difference]: With dead ends: 1521 [2024-11-09 08:02:02,963 INFO L226 Difference]: Without dead ends: 1521 [2024-11-09 08:02:02,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:02:02,964 INFO L432 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:02,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1540 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 08:02:02,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-09 08:02:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1287. [2024-11-09 08:02:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 823 states have (on average 1.6901579586877278) internal successors, (1391), 1044 states have internal predecessors, (1391), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:02:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-09 08:02:02,995 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-09 08:02:02,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:02,995 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-09 08:02:02,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:02:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-09 08:02:02,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 08:02:02,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:02,996 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:02,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 08:02:02,997 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:02,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:02,997 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-09 08:02:02,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:02,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795804654] [2024-11-09 08:02:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:02,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:05,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:02:05,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:05,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795804654] [2024-11-09 08:02:05,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795804654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:02:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847742031] [2024-11-09 08:02:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:05,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:02:05,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:02:05,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 08:02:05,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 08:02:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:07,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 08:02:07,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:02:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:02:07,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:02:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:02:07,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847742031] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 08:02:07,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 08:02:07,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-09 08:02:07,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846264966] [2024-11-09 08:02:07,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 08:02:07,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 08:02:07,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:07,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 08:02:07,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-09 08:02:07,875 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:02:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:08,464 INFO L93 Difference]: Finished difference Result 1329 states and 1807 transitions. [2024-11-09 08:02:08,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 08:02:08,465 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 08:02:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:08,470 INFO L225 Difference]: With dead ends: 1329 [2024-11-09 08:02:08,470 INFO L226 Difference]: Without dead ends: 1329 [2024-11-09 08:02:08,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-09 08:02:08,471 INFO L432 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 [2024-11-09 08:02:08,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3294 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 08:02:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-09 08:02:08,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1305. [2024-11-09 08:02:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 841 states have (on average 1.6753864447086801) internal successors, (1409), 1062 states have internal predecessors, (1409), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:02:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-09 08:02:08,500 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-09 08:02:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:08,500 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-09 08:02:08,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:02:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-09 08:02:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 08:02:08,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:08,502 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:08,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 08:02:08,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 08:02:08,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:08,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-09 08:02:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:08,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302489280] [2024-11-09 08:02:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:08,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:10,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 08:02:10,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:10,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302489280] [2024-11-09 08:02:10,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302489280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:02:10,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:02:10,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:02:10,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696325449] [2024-11-09 08:02:10,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:02:10,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:02:10,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:10,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:02:10,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:02:10,933 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:02:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:11,811 INFO L93 Difference]: Finished difference Result 1385 states and 1819 transitions. [2024-11-09 08:02:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 08:02:11,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-11-09 08:02:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:11,817 INFO L225 Difference]: With dead ends: 1385 [2024-11-09 08:02:11,818 INFO L226 Difference]: Without dead ends: 1385 [2024-11-09 08:02:11,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 08:02:11,819 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 377 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:11,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1860 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 08:02:11,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-09 08:02:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1303. [2024-11-09 08:02:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 841 states have (on average 1.6730083234244946) internal successors, (1407), 1060 states have internal predecessors, (1407), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:02:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-09 08:02:11,848 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-09 08:02:11,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:11,848 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-09 08:02:11,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 08:02:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-09 08:02:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 08:02:11,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:11,850 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:11,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 08:02:11,850 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:11,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-09 08:02:11,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:11,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001772838] [2024-11-09 08:02:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:11,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:13,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:13,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:02:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:02:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:13,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:02:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:02:13,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:13,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001772838] [2024-11-09 08:02:13,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001772838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:02:13,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:02:13,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:02:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182126447] [2024-11-09 08:02:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:02:13,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:02:13,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:13,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:02:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:02:13,955 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 08:02:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:14,389 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2024-11-09 08:02:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 08:02:14,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-09 08:02:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:14,397 INFO L225 Difference]: With dead ends: 1326 [2024-11-09 08:02:14,397 INFO L226 Difference]: Without dead ends: 1326 [2024-11-09 08:02:14,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:02:14,400 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 883 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:14,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1274 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 08:02:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-09 08:02:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2024-11-09 08:02:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 840 states have (on average 1.6714285714285715) internal successors, (1404), 1059 states have internal predecessors, (1404), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:02:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-09 08:02:14,427 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-09 08:02:14,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:14,428 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-09 08:02:14,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 08:02:14,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-09 08:02:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 08:02:14,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:14,430 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:14,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 08:02:14,431 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:14,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:14,431 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-09 08:02:14,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:14,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630903361] [2024-11-09 08:02:14,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:14,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:16,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:16,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:02:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:16,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:02:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:16,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:02:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:02:16,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:16,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630903361] [2024-11-09 08:02:16,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630903361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:02:16,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:02:16,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:02:16,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892130471] [2024-11-09 08:02:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:02:16,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:02:16,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:02:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:02:16,385 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 08:02:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:17,061 INFO L93 Difference]: Finished difference Result 1325 states and 1801 transitions. [2024-11-09 08:02:17,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 08:02:17,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2024-11-09 08:02:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:17,067 INFO L225 Difference]: With dead ends: 1325 [2024-11-09 08:02:17,068 INFO L226 Difference]: Without dead ends: 1325 [2024-11-09 08:02:17,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:02:17,069 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 139 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2024-11-09 08:02:17,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1769 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 08:02:17,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-09 08:02:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1301. [2024-11-09 08:02:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 840 states have (on average 1.6702380952380953) internal successors, (1403), 1058 states have internal predecessors, (1403), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:02:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-09 08:02:17,094 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-09 08:02:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:17,094 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-09 08:02:17,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 08:02:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-09 08:02:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 08:02:17,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:17,096 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:17,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 08:02:17,096 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:17,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-09 08:02:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:17,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849833997] [2024-11-09 08:02:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:17,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:19,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:19,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:02:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:19,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:02:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:19,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:02:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:02:19,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:19,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849833997] [2024-11-09 08:02:19,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849833997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:02:19,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:02:19,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 08:02:19,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915501623] [2024-11-09 08:02:19,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:02:19,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 08:02:19,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:19,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 08:02:19,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 08:02:19,673 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 08:02:20,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:20,485 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2024-11-09 08:02:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 08:02:20,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-11-09 08:02:20,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:20,490 INFO L225 Difference]: With dead ends: 1324 [2024-11-09 08:02:20,490 INFO L226 Difference]: Without dead ends: 1324 [2024-11-09 08:02:20,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 08:02:20,491 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 878 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:20,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1759 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 08:02:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-09 08:02:20,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1300. [2024-11-09 08:02:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 840 states have (on average 1.6690476190476191) internal successors, (1402), 1057 states have internal predecessors, (1402), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-09 08:02:20,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-09 08:02:20,515 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-09 08:02:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:20,515 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-09 08:02:20,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 08:02:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-09 08:02:20,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 08:02:20,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:20,519 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:20,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 08:02:20,519 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr164ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:20,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-09 08:02:20,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:20,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449236125] [2024-11-09 08:02:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:20,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:22,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:22,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:02:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:22,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:02:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:22,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:02:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:22,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 08:02:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:02:22,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:22,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449236125] [2024-11-09 08:02:22,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449236125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:02:22,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:02:22,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 08:02:22,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029955678] [2024-11-09 08:02:22,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:02:22,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 08:02:22,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:22,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 08:02:22,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:02:22,248 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 08:02:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:22,999 INFO L93 Difference]: Finished difference Result 1365 states and 1809 transitions. [2024-11-09 08:02:22,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 08:02:22,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2024-11-09 08:02:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:23,004 INFO L225 Difference]: With dead ends: 1365 [2024-11-09 08:02:23,004 INFO L226 Difference]: Without dead ends: 1352 [2024-11-09 08:02:23,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 08:02:23,005 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 233 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:23,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1706 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 08:02:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-09 08:02:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1295. [2024-11-09 08:02:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 837 states have (on average 1.6702508960573477) internal successors, (1398), 1054 states have internal predecessors, (1398), 183 states have call successors, (183), 79 states have call predecessors, (183), 78 states have return successors, (181), 174 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-09 08:02:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-09 08:02:23,034 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-09 08:02:23,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:23,035 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-09 08:02:23,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 08:02:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-09 08:02:23,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 08:02:23,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:23,037 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:23,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 08:02:23,037 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:23,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:23,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-09 08:02:23,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:23,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076250886] [2024-11-09 08:02:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:23,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:25,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:25,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:02:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:25,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:02:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:25,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:02:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:25,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 08:02:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:02:25,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:25,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076250886] [2024-11-09 08:02:25,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076250886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:02:25,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421492760] [2024-11-09 08:02:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:25,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:02:25,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:02:25,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 08:02:25,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 08:02:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:28,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 08:02:28,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:02:28,764 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-09 08:02:28,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-09 08:02:28,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 08:02:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:02:28,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:02:28,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421492760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:02:28,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 08:02:28,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-09 08:02:28,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623000076] [2024-11-09 08:02:28,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 08:02:28,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 08:02:28,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:28,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 08:02:28,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-09 08:02:28,887 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 08:02:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:31,215 INFO L93 Difference]: Finished difference Result 1890 states and 2482 transitions. [2024-11-09 08:02:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 08:02:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2024-11-09 08:02:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:31,223 INFO L225 Difference]: With dead ends: 1890 [2024-11-09 08:02:31,224 INFO L226 Difference]: Without dead ends: 1890 [2024-11-09 08:02:31,224 INFO L431 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 [2024-11-09 08:02:31,225 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 942 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:31,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4025 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 08:02:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-09 08:02:31,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1634. [2024-11-09 08:02:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1097 states have (on average 1.6937101185050136) internal successors, (1858), 1325 states have internal predecessors, (1858), 241 states have call successors, (241), 101 states have call predecessors, (241), 100 states have return successors, (239), 225 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-09 08:02:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-09 08:02:31,267 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-09 08:02:31,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:31,268 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-09 08:02:31,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 08:02:31,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-09 08:02:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 08:02:31,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:31,276 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:31,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 08:02:31,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:02:31,477 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:31,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:31,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-09 08:02:31,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:31,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564866531] [2024-11-09 08:02:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:31,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:02:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:34,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 08:02:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:34,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 08:02:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:34,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 08:02:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:34,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 08:02:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:34,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 08:02:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 08:02:34,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:02:34,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564866531] [2024-11-09 08:02:34,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564866531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:02:34,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543721251] [2024-11-09 08:02:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:34,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:02:34,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:02:34,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 08:02:34,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 08:02:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:02:37,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 08:02:37,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 08:02:37,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 08:02:37,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 08:02:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 08:02:37,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 08:02:37,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543721251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 08:02:37,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 08:02:37,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2024-11-09 08:02:37,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984513154] [2024-11-09 08:02:37,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 08:02:37,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 08:02:37,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:02:37,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 08:02:37,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-09 08:02:37,879 INFO L87 Difference]: Start difference. First operand 1634 states and 2338 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 08:02:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:02:40,861 INFO L93 Difference]: Finished difference Result 2102 states and 2721 transitions. [2024-11-09 08:02:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 08:02:40,862 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 78 [2024-11-09 08:02:40,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:02:40,868 INFO L225 Difference]: With dead ends: 2102 [2024-11-09 08:02:40,868 INFO L226 Difference]: Without dead ends: 2102 [2024-11-09 08:02:40,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-09 08:02:40,869 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 2438 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 4656 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 4656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 08:02:40,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 3641 Invalid, 5180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 4656 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 08:02:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2024-11-09 08:02:40,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1819. [2024-11-09 08:02:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7032258064516128) internal successors, (2112), 1464 states have internal predecessors, (2112), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-09 08:02:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2646 transitions. [2024-11-09 08:02:40,903 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2646 transitions. Word has length 78 [2024-11-09 08:02:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:02:40,904 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2646 transitions. [2024-11-09 08:02:40,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 08:02:40,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2646 transitions. [2024-11-09 08:02:40,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 08:02:40,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:02:40,905 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 08:02:40,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 08:02:41,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 08:02:41,106 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr114REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-09 08:02:41,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:02:41,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499240, now seen corresponding path program 1 times [2024-11-09 08:02:41,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:02:41,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673264476] [2024-11-09 08:02:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:02:41,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms