./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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 0.3.0-?-e2fb8be-m [2025-03-08 23:07:41,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 23:07:41,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-08 23:07:41,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 23:07:41,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 23:07:41,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 23:07:41,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 23:07:41,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 23:07:41,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 23:07:41,459 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 23:07:41,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 23:07:41,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 23:07:41,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 23:07:41,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 23:07:41,460 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 23:07:41,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 23:07:41,460 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 23:07:41,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 23:07:41,462 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 23:07:41,462 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 23:07:41,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 23:07:41,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 23:07:41,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 23:07:41,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 23:07:41,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 23:07:41,463 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 [2025-03-08 23:07:41,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 23:07:41,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 23:07:41,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 23:07:41,679 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 23:07:41,679 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 23:07:41,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2025-03-08 23:07:42,827 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0ff79f2/fbdc207b8292495ca97ca9fa5dd047f0/FLAG615f8baf5 [2025-03-08 23:07:43,181 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 23:07:43,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2025-03-08 23:07:43,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0ff79f2/fbdc207b8292495ca97ca9fa5dd047f0/FLAG615f8baf5 [2025-03-08 23:07:43,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0ff79f2/fbdc207b8292495ca97ca9fa5dd047f0 [2025-03-08 23:07:43,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 23:07:43,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 23:07:43,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 23:07:43,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 23:07:43,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 23:07:43,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 11:07:43" (1/1) ... [2025-03-08 23:07:43,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba29674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:43, skipping insertion in model container [2025-03-08 23:07:43,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 11:07:43" (1/1) ... [2025-03-08 23:07:43,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 23:07:44,046 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 23:07:44,062 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 23:07:44,075 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 23:07:44,130 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 23:07:44,158 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 23:07:44,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 23:07:44,206 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 23:07:44,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 23:07:44,492 INFO L204 MainTranslator]: Completed translation [2025-03-08 23:07:44,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44 WrapperNode [2025-03-08 23:07:44,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 23:07:44,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 23:07:44,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 23:07:44,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 23:07:44,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,647 INFO L138 Inliner]: procedures = 473, calls = 2668, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3342 [2025-03-08 23:07:44,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 23:07:44,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 23:07:44,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 23:07:44,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 23:07:44,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,773 INFO L175 MemorySlicer]: Split 2024 memory accesses to 27 slices as follows [5, 3, 35, 1040, 480, 59, 35, 11, 5, 2, 15, 120, 67, 2, 0, 5, 12, 2, 20, 4, 3, 2, 37, 16, 18, 21, 5]. 51 percent of accesses are in the largest equivalence class. The 1901 initializations are split as follows [3, 3, 15, 1040, 480, 59, 32, 2, 1, 0, 10, 120, 67, 0, 0, 4, 6, 2, 4, 4, 0, 0, 25, 5, 18, 0, 1]. The 58 writes are split as follows [0, 0, 6, 0, 0, 0, 0, 5, 1, 1, 2, 0, 0, 2, 0, 0, 6, 0, 4, 0, 0, 0, 0, 8, 0, 21, 2]. [2025-03-08 23:07:44,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,833 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 23:07:44,890 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 23:07:44,890 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 23:07:44,890 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 23:07:44,891 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (1/1) ... [2025-03-08 23:07:44,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 23:07:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 23:07:44,918 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) [2025-03-08 23:07:44,920 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 [2025-03-08 23:07:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2025-03-08 23:07:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2025-03-08 23:07:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-08 23:07:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2025-03-08 23:07:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2025-03-08 23:07:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2025-03-08 23:07:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 23:07:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2025-03-08 23:07:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2025-03-08 23:07:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-08 23:07:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2025-03-08 23:07:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2025-03-08 23:07:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2025-03-08 23:07:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#26 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 23:07:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2025-03-08 23:07:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 23:07:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 23:07:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 23:07:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 23:07:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 23:07:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 23:07:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-03-08 23:07:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2025-03-08 23:07:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 23:07:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2025-03-08 23:07:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2025-03-08 23:07:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2025-03-08 23:07:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 23:07:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2025-03-08 23:07:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-03-08 23:07:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2025-03-08 23:07:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2025-03-08 23:07:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2025-03-08 23:07:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2025-03-08 23:07:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2025-03-08 23:07:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 23:07:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2025-03-08 23:07:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2025-03-08 23:07:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2025-03-08 23:07:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2025-03-08 23:07:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2025-03-08 23:07:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-08 23:07:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-03-08 23:07:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-03-08 23:07:45,324 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 23:07:45,327 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 23:07:45,533 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3247: havoc get_user_#t~nondet672#1; [2025-03-08 23:07:45,551 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1510: havoc #t~ret201; [2025-03-08 23:07:45,566 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1472: havoc #t~ret200#1; [2025-03-08 23:07:45,566 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3963: havoc inw_#t~nondet754#1; [2025-03-08 23:07:45,667 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3271: havoc copy_to_user_#t~nondet675#1; [2025-03-08 23:07:45,668 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3263: havoc put_user_#t~nondet674#1; [2025-03-08 23:07:45,807 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1707: havoc zf_open_#t~ret219#1; [2025-03-08 23:07:45,808 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4510: havoc test_and_set_bit_#t~bitwise795#1; [2025-03-08 23:07:49,809 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3506: havoc misc_register_#t~ret714#1; [2025-03-08 23:07:49,918 INFO L? ?]: Removed 648 outVars from TransFormulas that were not future-live. [2025-03-08 23:07:49,919 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 23:07:49,967 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 23:07:49,968 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 23:07:49,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 11:07:49 BoogieIcfgContainer [2025-03-08 23:07:49,971 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 23:07:49,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 23:07:49,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 23:07:49,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 23:07:49,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 11:07:43" (1/3) ... [2025-03-08 23:07:49,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243e88ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 11:07:49, skipping insertion in model container [2025-03-08 23:07:49,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:07:44" (2/3) ... [2025-03-08 23:07:49,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243e88ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 11:07:49, skipping insertion in model container [2025-03-08 23:07:49,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 11:07:49" (3/3) ... [2025-03-08 23:07:49,979 INFO L128 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_pthread_mutex_unlock.i [2025-03-08 23:07:49,989 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 23:07:49,992 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ddv_machzwd_pthread_mutex_unlock.i that has 29 procedures, 701 locations, 1 initial locations, 4 loop locations, and 205 error locations. [2025-03-08 23:07:50,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 23:07:50,040 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;@5e2d1511, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 23:07:50,040 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2025-03-08 23:07:50,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 697 states, 387 states have (on average 1.7881136950904393) internal successors, (692), 598 states have internal predecessors, (692), 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) [2025-03-08 23:07:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-08 23:07:50,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:50,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-08 23:07:50,052 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:07:50,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash 926720359, now seen corresponding path program 1 times [2025-03-08 23:07:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:50,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482729326] [2025-03-08 23:07:50,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:50,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:52,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 23:07:52,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 23:07:52,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:52,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:07:53,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:53,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482729326] [2025-03-08 23:07:53,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482729326] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:53,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:53,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:07:53,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134292521] [2025-03-08 23:07:53,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:53,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 23:07:53,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:53,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 23:07:53,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 23:07:53,758 INFO L87 Difference]: Start difference. First operand has 697 states, 387 states have (on average 1.7881136950904393) internal successors, (692), 598 states have internal predecessors, (692), 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) [2025-03-08 23:07:55,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:57,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:58,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:58,730 INFO L93 Difference]: Finished difference Result 1261 states and 1525 transitions. [2025-03-08 23:07:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 23:07:58,732 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 [2025-03-08 23:07:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:58,741 INFO L225 Difference]: With dead ends: 1261 [2025-03-08 23:07:58,741 INFO L226 Difference]: Without dead ends: 1257 [2025-03-08 23:07:58,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 23:07:58,743 INFO L435 NwaCegarLoop]: 753 mSDtfsCounter, 723 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:58,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 2501 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-03-08 23:07:58,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2025-03-08 23:07:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1044. [2025-03-08 23:07:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 651 states have (on average 1.771121351766513) internal successors, (1153), 873 states have internal predecessors, (1153), 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) [2025-03-08 23:07:58,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1429 transitions. [2025-03-08 23:07:58,808 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1429 transitions. Word has length 5 [2025-03-08 23:07:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:58,809 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1429 transitions. [2025-03-08 23:07:58,809 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) [2025-03-08 23:07:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1429 transitions. [2025-03-08 23:07:58,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-08 23:07:58,809 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:58,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-08 23:07:58,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 23:07:58,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:07:58,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:58,810 INFO L85 PathProgramCache]: Analyzing trace with hash 926720360, now seen corresponding path program 1 times [2025-03-08 23:07:58,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:58,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855757340] [2025-03-08 23:07:58,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:58,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:00,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 23:08:01,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 23:08:01,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:01,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:02,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855757340] [2025-03-08 23:08:02,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855757340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:02,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:02,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:08:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353930682] [2025-03-08 23:08:02,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:02,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 23:08:02,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:02,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 23:08:02,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 23:08:02,182 INFO L87 Difference]: Start difference. First operand 1044 states and 1429 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) [2025-03-08 23:08:04,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:06,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:07,298 INFO L93 Difference]: Finished difference Result 1183 states and 1531 transitions. [2025-03-08 23:08:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 23:08:07,298 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 [2025-03-08 23:08:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:07,304 INFO L225 Difference]: With dead ends: 1183 [2025-03-08 23:08:07,304 INFO L226 Difference]: Without dead ends: 1183 [2025-03-08 23:08:07,304 INFO L434 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 [2025-03-08 23:08:07,304 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 279 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:07,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2771 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2025-03-08 23:08:07,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2025-03-08 23:08:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1124. [2025-03-08 23:08:07,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 699 states have (on average 1.7353361945636623) internal successors, (1213), 922 states have internal predecessors, (1213), 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) [2025-03-08 23:08:07,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1527 transitions. [2025-03-08 23:08:07,341 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1527 transitions. Word has length 5 [2025-03-08 23:08:07,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:07,341 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1527 transitions. [2025-03-08 23:08:07,341 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) [2025-03-08 23:08:07,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1527 transitions. [2025-03-08 23:08:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-08 23:08:07,342 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:07,342 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:07,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 23:08:07,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr163REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:07,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:07,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1147177173, now seen corresponding path program 1 times [2025-03-08 23:08:07,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939098421] [2025-03-08 23:08:07,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:09,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 23:08:09,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 23:08:09,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:09,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:09,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:09,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939098421] [2025-03-08 23:08:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939098421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:09,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:09,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:08:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544855882] [2025-03-08 23:08:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:09,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:08:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:09,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:08:09,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:09,925 INFO L87 Difference]: Start difference. First operand 1124 states and 1527 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-08 23:08:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:10,388 INFO L93 Difference]: Finished difference Result 1330 states and 1614 transitions. [2025-03-08 23:08:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:08:10,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-03-08 23:08:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:10,397 INFO L225 Difference]: With dead ends: 1330 [2025-03-08 23:08:10,398 INFO L226 Difference]: Without dead ends: 1330 [2025-03-08 23:08:10,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:10,399 INFO L435 NwaCegarLoop]: 737 mSDtfsCounter, 705 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:10,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1316 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 23:08:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2025-03-08 23:08:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1123. [2025-03-08 23:08:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 699 states have (on average 1.7281831187410586) internal successors, (1208), 921 states have internal predecessors, (1208), 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) [2025-03-08 23:08:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1522 transitions. [2025-03-08 23:08:10,438 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1522 transitions. Word has length 11 [2025-03-08 23:08:10,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:10,438 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1522 transitions. [2025-03-08 23:08:10,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-08 23:08:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1522 transitions. [2025-03-08 23:08:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-08 23:08:10,439 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:10,439 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:10,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 23:08:10,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr164REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:10,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1147177172, now seen corresponding path program 1 times [2025-03-08 23:08:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:10,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106426212] [2025-03-08 23:08:10,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:12,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 23:08:12,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 23:08:12,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:12,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:13,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:13,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106426212] [2025-03-08 23:08:13,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106426212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:13,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:13,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:08:13,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13609102] [2025-03-08 23:08:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:13,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 23:08:13,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:13,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 23:08:13,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:08:13,042 INFO L87 Difference]: Start difference. First operand 1123 states and 1522 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-08 23:08:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:14,567 INFO L93 Difference]: Finished difference Result 1187 states and 1537 transitions. [2025-03-08 23:08:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 23:08:14,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-03-08 23:08:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:14,571 INFO L225 Difference]: With dead ends: 1187 [2025-03-08 23:08:14,571 INFO L226 Difference]: Without dead ends: 1187 [2025-03-08 23:08:14,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:08:14,573 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 277 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:14,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 2100 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 23:08:14,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2025-03-08 23:08:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1126. [2025-03-08 23:08:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 702 states have (on average 1.725071225071225) internal successors, (1211), 924 states have internal predecessors, (1211), 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) [2025-03-08 23:08:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1525 transitions. [2025-03-08 23:08:14,599 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1525 transitions. Word has length 11 [2025-03-08 23:08:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:14,599 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1525 transitions. [2025-03-08 23:08:14,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-08 23:08:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1525 transitions. [2025-03-08 23:08:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-08 23:08:14,600 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:14,600 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:14,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 23:08:14,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr164REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:14,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash -499489766, now seen corresponding path program 1 times [2025-03-08 23:08:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:14,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923749058] [2025-03-08 23:08:14,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:16,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 23:08:16,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 23:08:16,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:16,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:17,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:17,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923749058] [2025-03-08 23:08:17,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923749058] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 23:08:17,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103066810] [2025-03-08 23:08:17,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:17,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 23:08:17,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 23:08:17,336 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) [2025-03-08 23:08:17,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 23:08:19,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 23:08:20,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 23:08:20,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:20,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:20,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 5614 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-08 23:08:20,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 23:08:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:20,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 23:08:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:20,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103066810] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 23:08:20,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 23:08:20,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 4] total 11 [2025-03-08 23:08:20,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706700529] [2025-03-08 23:08:20,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 23:08:20,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 23:08:20,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:20,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 23:08:20,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 23:08:20,293 INFO L87 Difference]: Start difference. First operand 1126 states and 1525 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 23:08:21,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:22,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:24,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:26,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:28,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:29,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:31,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:31,862 INFO L93 Difference]: Finished difference Result 1402 states and 1775 transitions. [2025-03-08 23:08:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 23:08:31,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2025-03-08 23:08:31,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:31,867 INFO L225 Difference]: With dead ends: 1402 [2025-03-08 23:08:31,868 INFO L226 Difference]: Without dead ends: 1402 [2025-03-08 23:08:31,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2025-03-08 23:08:31,869 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 745 mSDsluCounter, 4261 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:31,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 5139 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2025-03-08 23:08:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2025-03-08 23:08:31,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1278. [2025-03-08 23:08:31,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 812 states have (on average 1.7105911330049262) internal successors, (1389), 1035 states have internal predecessors, (1389), 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) [2025-03-08 23:08:31,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1757 transitions. [2025-03-08 23:08:31,899 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1757 transitions. Word has length 14 [2025-03-08 23:08:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:31,900 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1757 transitions. [2025-03-08 23:08:31,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 23:08:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1757 transitions. [2025-03-08 23:08:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-08 23:08:31,900 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:31,900 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:31,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 23:08:32,101 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 [2025-03-08 23:08:32,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr161REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:32,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1775123445, now seen corresponding path program 1 times [2025-03-08 23:08:32,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:32,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650851630] [2025-03-08 23:08:32,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:32,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:34,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 23:08:34,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 23:08:34,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:34,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-08 23:08:34,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:34,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650851630] [2025-03-08 23:08:34,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650851630] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:34,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:34,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:08:34,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252783450] [2025-03-08 23:08:34,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:34,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:08:34,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:34,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:08:34,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:34,426 INFO L87 Difference]: Start difference. First operand 1278 states and 1757 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-03-08 23:08:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:34,869 INFO L93 Difference]: Finished difference Result 1486 states and 1850 transitions. [2025-03-08 23:08:34,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:08:34,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 24 [2025-03-08 23:08:34,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:34,874 INFO L225 Difference]: With dead ends: 1486 [2025-03-08 23:08:34,874 INFO L226 Difference]: Without dead ends: 1486 [2025-03-08 23:08:34,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:34,875 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 691 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:34,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1320 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 23:08:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2025-03-08 23:08:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1276. [2025-03-08 23:08:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 812 states have (on average 1.6995073891625616) internal successors, (1380), 1033 states have internal predecessors, (1380), 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) [2025-03-08 23:08:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1748 transitions. [2025-03-08 23:08:34,898 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1748 transitions. Word has length 24 [2025-03-08 23:08:34,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:34,898 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1748 transitions. [2025-03-08 23:08:34,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-03-08 23:08:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1748 transitions. [2025-03-08 23:08:34,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-08 23:08:34,898 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:34,899 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:34,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 23:08:34,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr162REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:34,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:34,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1775123446, now seen corresponding path program 1 times [2025-03-08 23:08:34,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:34,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354241748] [2025-03-08 23:08:34,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:34,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:36,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 23:08:36,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 23:08:36,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:36,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:37,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:37,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354241748] [2025-03-08 23:08:37,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354241748] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 23:08:37,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912342736] [2025-03-08 23:08:37,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:37,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 23:08:37,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 23:08:37,333 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) [2025-03-08 23:08:37,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 23:08:39,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 23:08:40,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 23:08:40,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:40,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:40,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 5674 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 23:08:40,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 23:08:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:40,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 23:08:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 23:08:40,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912342736] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 23:08:40,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 23:08:40,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-03-08 23:08:40,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947819544] [2025-03-08 23:08:40,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 23:08:40,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-08 23:08:40,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:40,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-08 23:08:40,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-08 23:08:40,159 INFO L87 Difference]: Start difference. First operand 1276 states and 1748 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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) [2025-03-08 23:08:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:40,280 INFO L93 Difference]: Finished difference Result 1294 states and 1766 transitions. [2025-03-08 23:08:40,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 23:08:40,281 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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 24 [2025-03-08 23:08:40,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:40,285 INFO L225 Difference]: With dead ends: 1294 [2025-03-08 23:08:40,285 INFO L226 Difference]: Without dead ends: 1294 [2025-03-08 23:08:40,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-08 23:08:40,285 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 13 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:40,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4044 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 23:08:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2025-03-08 23:08:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1294. [2025-03-08 23:08:40,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 830 states have (on average 1.6843373493975904) internal successors, (1398), 1051 states have internal predecessors, (1398), 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) [2025-03-08 23:08:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1766 transitions. [2025-03-08 23:08:40,307 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1766 transitions. Word has length 24 [2025-03-08 23:08:40,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:40,307 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1766 transitions. [2025-03-08 23:08:40,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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) [2025-03-08 23:08:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1766 transitions. [2025-03-08 23:08:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-08 23:08:40,308 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:40,308 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:40,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 23:08:40,508 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 [2025-03-08 23:08:40,509 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr162REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:40,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2109337546, now seen corresponding path program 2 times [2025-03-08 23:08:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459345846] [2025-03-08 23:08:40,510 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 23:08:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:42,518 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-03-08 23:08:42,550 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 42 statements. [2025-03-08 23:08:42,550 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 23:08:42,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-08 23:08:42,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:42,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459345846] [2025-03-08 23:08:42,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459345846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:42,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:42,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:08:42,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498205863] [2025-03-08 23:08:42,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:42,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 23:08:42,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:42,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 23:08:42,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:08:42,995 INFO L87 Difference]: Start difference. First operand 1294 states and 1766 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2025-03-08 23:08:46,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:46,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:46,725 INFO L93 Difference]: Finished difference Result 1350 states and 1778 transitions. [2025-03-08 23:08:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 23:08:46,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 42 [2025-03-08 23:08:46,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:46,729 INFO L225 Difference]: With dead ends: 1350 [2025-03-08 23:08:46,729 INFO L226 Difference]: Without dead ends: 1350 [2025-03-08 23:08:46,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:08:46,729 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 255 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:46,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1572 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2025-03-08 23:08:46,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2025-03-08 23:08:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1292. [2025-03-08 23:08:46,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 830 states have (on average 1.6819277108433734) internal successors, (1396), 1049 states have internal predecessors, (1396), 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) [2025-03-08 23:08:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1764 transitions. [2025-03-08 23:08:46,750 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1764 transitions. Word has length 42 [2025-03-08 23:08:46,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:46,750 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1764 transitions. [2025-03-08 23:08:46,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2025-03-08 23:08:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1764 transitions. [2025-03-08 23:08:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-08 23:08:46,752 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:46,752 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:46,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 23:08:46,753 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr157REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:46,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash -191873309, now seen corresponding path program 1 times [2025-03-08 23:08:46,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:46,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412902029] [2025-03-08 23:08:46,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:46,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:48,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-08 23:08:48,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-08 23:08:48,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:48,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:49,113 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-08 23:08:49,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:49,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412902029] [2025-03-08 23:08:49,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412902029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:49,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:49,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:08:49,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743201433] [2025-03-08 23:08:49,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:49,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:08:49,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:49,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:08:49,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:49,115 INFO L87 Difference]: Start difference. First operand 1292 states and 1764 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 23:08:49,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:49,146 INFO L93 Difference]: Finished difference Result 1291 states and 1761 transitions. [2025-03-08 23:08:49,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:08:49,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2025-03-08 23:08:49,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:49,150 INFO L225 Difference]: With dead ends: 1291 [2025-03-08 23:08:49,150 INFO L226 Difference]: Without dead ends: 1291 [2025-03-08 23:08:49,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:49,151 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 814 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:49,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 815 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 23:08:49,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2025-03-08 23:08:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1291. [2025-03-08 23:08:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 829 states have (on average 1.6803377563329311) internal successors, (1393), 1048 states have internal predecessors, (1393), 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) [2025-03-08 23:08:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1761 transitions. [2025-03-08 23:08:49,168 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1761 transitions. Word has length 66 [2025-03-08 23:08:49,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:49,169 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1761 transitions. [2025-03-08 23:08:49,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 23:08:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1761 transitions. [2025-03-08 23:08:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 23:08:49,169 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:49,170 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:49,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 23:08:49,170 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr157REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:49,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:49,170 INFO L85 PathProgramCache]: Analyzing trace with hash 294358723, now seen corresponding path program 1 times [2025-03-08 23:08:49,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:49,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933798631] [2025-03-08 23:08:49,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:49,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:51,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 23:08:51,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 23:08:51,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:51,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-08 23:08:51,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933798631] [2025-03-08 23:08:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933798631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:51,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:51,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:08:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968944406] [2025-03-08 23:08:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:51,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:08:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:51,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:08:51,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:51,455 INFO L87 Difference]: Start difference. First operand 1291 states and 1761 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 23:08:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:52,607 INFO L93 Difference]: Finished difference Result 1290 states and 1760 transitions. [2025-03-08 23:08:52,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:08:52,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 68 [2025-03-08 23:08:52,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:52,611 INFO L225 Difference]: With dead ends: 1290 [2025-03-08 23:08:52,611 INFO L226 Difference]: Without dead ends: 1290 [2025-03-08 23:08:52,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:52,612 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 1 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:52,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1420 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 23:08:52,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2025-03-08 23:08:52,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1290. [2025-03-08 23:08:52,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 829 states have (on average 1.6791314837153197) internal successors, (1392), 1047 states have internal predecessors, (1392), 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) [2025-03-08 23:08:52,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1760 transitions. [2025-03-08 23:08:52,631 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1760 transitions. Word has length 68 [2025-03-08 23:08:52,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:52,631 INFO L471 AbstractCegarLoop]: Abstraction has 1290 states and 1760 transitions. [2025-03-08 23:08:52,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 23:08:52,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1760 transitions. [2025-03-08 23:08:52,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 23:08:52,632 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:52,632 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:52,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 23:08:52,632 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr158REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:52,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash 294358724, now seen corresponding path program 1 times [2025-03-08 23:08:52,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:52,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610731449] [2025-03-08 23:08:52,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:52,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:54,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 23:08:54,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 23:08:54,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:54,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-08 23:08:55,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:55,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610731449] [2025-03-08 23:08:55,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610731449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:55,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:55,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:08:55,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384230588] [2025-03-08 23:08:55,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:55,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 23:08:55,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:55,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 23:08:55,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:08:55,498 INFO L87 Difference]: Start difference. First operand 1290 states and 1760 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 23:08:57,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:08:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:08:57,577 INFO L93 Difference]: Finished difference Result 1289 states and 1759 transitions. [2025-03-08 23:08:57,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 23:08:57,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 68 [2025-03-08 23:08:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:08:57,581 INFO L225 Difference]: With dead ends: 1289 [2025-03-08 23:08:57,581 INFO L226 Difference]: Without dead ends: 1289 [2025-03-08 23:08:57,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 23:08:57,582 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 809 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-08 23:08:57,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1423 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-08 23:08:57,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2025-03-08 23:08:57,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2025-03-08 23:08:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 829 states have (on average 1.677925211097708) internal successors, (1391), 1046 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) [2025-03-08 23:08:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1759 transitions. [2025-03-08 23:08:57,601 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1759 transitions. Word has length 68 [2025-03-08 23:08:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:08:57,602 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1759 transitions. [2025-03-08 23:08:57,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 23:08:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1759 transitions. [2025-03-08 23:08:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-08 23:08:57,604 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:08:57,604 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:08:57,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 23:08:57,604 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:08:57,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:08:57,604 INFO L85 PathProgramCache]: Analyzing trace with hash 95286464, now seen corresponding path program 1 times [2025-03-08 23:08:57,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:08:57,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480924393] [2025-03-08 23:08:57,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:08:57,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:08:59,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-08 23:08:59,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-08 23:08:59,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:08:59,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:08:59,844 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-08 23:08:59,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:08:59,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480924393] [2025-03-08 23:08:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480924393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:08:59,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:08:59,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:08:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6265256] [2025-03-08 23:08:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:08:59,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:08:59,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:08:59,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:08:59,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:08:59,847 INFO L87 Difference]: Start difference. First operand 1289 states and 1759 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 23:09:01,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:09:02,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:09:02,226 INFO L93 Difference]: Finished difference Result 1330 states and 1768 transitions. [2025-03-08 23:09:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:09:02,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2025-03-08 23:09:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:09:02,230 INFO L225 Difference]: With dead ends: 1330 [2025-03-08 23:09:02,230 INFO L226 Difference]: Without dead ends: 1318 [2025-03-08 23:09:02,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:09:02,231 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 95 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:09:02,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1378 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 23:09:02,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2025-03-08 23:09:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1285. [2025-03-08 23:09:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 827 states have (on average 1.6783555018137848) internal successors, (1388), 1044 states have internal predecessors, (1388), 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) [2025-03-08 23:09:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1752 transitions. [2025-03-08 23:09:02,248 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1752 transitions. Word has length 73 [2025-03-08 23:09:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:09:02,248 INFO L471 AbstractCegarLoop]: Abstraction has 1285 states and 1752 transitions. [2025-03-08 23:09:02,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 23:09:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1752 transitions. [2025-03-08 23:09:02,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 23:09:02,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:09:02,249 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:09:02,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 23:09:02,250 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:09:02,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:09:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash -661748068, now seen corresponding path program 1 times [2025-03-08 23:09:02,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:09:02,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608170422] [2025-03-08 23:09:02,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:09:02,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:09:04,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 23:09:04,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 23:09:04,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:09:04,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:09:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-08 23:09:05,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:09:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608170422] [2025-03-08 23:09:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608170422] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:09:05,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:09:05,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 23:09:05,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328165733] [2025-03-08 23:09:05,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:09:05,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 23:09:05,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:09:05,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 23:09:05,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 23:09:05,149 INFO L87 Difference]: Start difference. First operand 1285 states and 1752 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-08 23:09:07,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:09:09,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:09:10,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:09:10,346 INFO L93 Difference]: Finished difference Result 1843 states and 2426 transitions. [2025-03-08 23:09:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 23:09:10,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 77 [2025-03-08 23:09:10,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:09:10,351 INFO L225 Difference]: With dead ends: 1843 [2025-03-08 23:09:10,352 INFO L226 Difference]: Without dead ends: 1843 [2025-03-08 23:09:10,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2025-03-08 23:09:10,352 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 802 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-03-08 23:09:10,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 3143 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2025-03-08 23:09:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2025-03-08 23:09:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1620. [2025-03-08 23:09:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1083 states have (on average 1.7026777469990766) internal successors, (1844), 1311 states have internal predecessors, (1844), 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) [2025-03-08 23:09:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2324 transitions. [2025-03-08 23:09:10,375 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2324 transitions. Word has length 77 [2025-03-08 23:09:10,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:09:10,375 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2324 transitions. [2025-03-08 23:09:10,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-08 23:09:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2324 transitions. [2025-03-08 23:09:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 23:09:10,376 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:09:10,376 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:09:10,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 23:09:10,376 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:09:10,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:09:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -661748067, now seen corresponding path program 1 times [2025-03-08 23:09:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:09:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602391575] [2025-03-08 23:09:10,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:09:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms