./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.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_inw_p.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd6b300b335accb35f3a48bfd0f387908f589dfb4e32ea4d19ee0b855e6625b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 23:06:25,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 23:06:25,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-08 23:06:25,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 23:06:25,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 23:06:25,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 23:06:25,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 23:06:25,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 23:06:25,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 23:06:25,561 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 23:06:25,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 23:06:25,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 23:06:25,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 23:06:25,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 23:06:25,562 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 23:06:25,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 23:06:25,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 23:06:25,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 23:06:25,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 23:06:25,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 23:06:25,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 23:06:25,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 23:06:25,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 23:06:25,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 23:06:25,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 23:06:25,565 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 -> cd6b300b335accb35f3a48bfd0f387908f589dfb4e32ea4d19ee0b855e6625b4 [2025-03-08 23:06:25,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 23:06:25,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 23:06:25,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 23:06:25,786 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 23:06:25,787 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 23:06:25,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i [2025-03-08 23:06:26,887 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d06d82cf/57601eb5b9c64a3cba3be086ce272de0/FLAG26201d7b1 [2025-03-08 23:06:27,298 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 23:06:27,299 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i [2025-03-08 23:06:27,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d06d82cf/57601eb5b9c64a3cba3be086ce272de0/FLAG26201d7b1 [2025-03-08 23:06:27,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d06d82cf/57601eb5b9c64a3cba3be086ce272de0 [2025-03-08 23:06:27,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 23:06:27,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 23:06:27,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 23:06:27,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 23:06:27,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 23:06:27,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 11:06:27" (1/1) ... [2025-03-08 23:06:27,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133d0977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:27, skipping insertion in model container [2025-03-08 23:06:27,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 11:06:27" (1/1) ... [2025-03-08 23:06:27,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 23:06:28,024 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 23:06:28,043 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 23:06:28,058 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 23:06:28,115 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 23:06:28,136 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 23:06:28,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 23:06:28,177 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 23:06:28,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 23:06:28,492 INFO L204 MainTranslator]: Completed translation [2025-03-08 23:06:28,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28 WrapperNode [2025-03-08 23:06:28,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 23:06:28,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 23:06:28,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 23:06:28,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 23:06:28,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,647 INFO L138 Inliner]: procedures = 473, calls = 2667, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3342 [2025-03-08 23:06:28,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 23:06:28,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 23:06:28,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 23:06:28,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 23:06:28,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,674 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,742 INFO L175 MemorySlicer]: Split 2024 memory accesses to 27 slices as follows [5, 3, 35, 1040, 0, 480, 59, 35, 11, 5, 15, 120, 67, 37, 2, 2, 20, 5, 4, 12, 3, 18, 2, 21, 5, 16, 2]. 51 percent of accesses are in the largest equivalence class. The 1901 initializations are split as follows [3, 3, 15, 1040, 0, 480, 59, 32, 2, 1, 10, 120, 67, 25, 0, 2, 4, 4, 4, 6, 0, 18, 0, 0, 1, 5, 0]. The 58 writes are split as follows [0, 0, 6, 0, 0, 0, 0, 0, 5, 1, 2, 0, 0, 0, 0, 0, 4, 0, 0, 6, 0, 0, 2, 21, 2, 8, 1]. [2025-03-08 23:06:28,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,801 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 23:06:28,864 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 23:06:28,864 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 23:06:28,865 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 23:06:28,865 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (1/1) ... [2025-03-08 23:06:28,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 23:06:28,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 23:06:28,894 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 23:06:28,898 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 23:06:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2025-03-08 23:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-08 23:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2025-03-08 23:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2025-03-08 23:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-08 23:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2025-03-08 23:06:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-03-08 23:06:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#26 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-08 23:06:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-03-08 23:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-03-08 23:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-03-08 23:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-03-08 23:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-03-08 23:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 23:06:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2025-03-08 23:06:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2025-03-08 23:06:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 23:06:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-03-08 23:06:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2025-03-08 23:06:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2025-03-08 23:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2025-03-08 23:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2025-03-08 23:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2025-03-08 23:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2025-03-08 23:06:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2025-03-08 23:06:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-03-08 23:06:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2025-03-08 23:06:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2025-03-08 23:06:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2025-03-08 23:06:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2025-03-08 23:06:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2025-03-08 23:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2025-03-08 23:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2025-03-08 23:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2025-03-08 23:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2025-03-08 23:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2025-03-08 23:06:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2025-03-08 23:06:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2025-03-08 23:06:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2025-03-08 23:06:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2025-03-08 23:06:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-08 23:06:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-03-08 23:06:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-03-08 23:06:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-03-08 23:06:29,297 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 23:06:29,299 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 23:06:29,488 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3247: havoc get_user_#t~nondet671#1; [2025-03-08 23:06:29,505 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1508: havoc #t~ret200; [2025-03-08 23:06:29,521 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1470: havoc #t~ret199#1; [2025-03-08 23:06:29,521 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3963: havoc inw_#t~nondet753#1; [2025-03-08 23:06:29,607 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3271: havoc copy_to_user_#t~nondet674#1; [2025-03-08 23:06:29,607 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3263: havoc put_user_#t~nondet673#1; [2025-03-08 23:06:29,740 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1705: havoc zf_open_#t~ret218#1; [2025-03-08 23:06:29,740 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4513: havoc test_and_set_bit_#t~bitwise794#1; [2025-03-08 23:06:33,596 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3506: havoc misc_register_#t~ret713#1; [2025-03-08 23:06:33,720 INFO L? ?]: Removed 648 outVars from TransFormulas that were not future-live. [2025-03-08 23:06:33,721 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 23:06:33,765 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 23:06:33,765 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 23:06:33,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 11:06:33 BoogieIcfgContainer [2025-03-08 23:06:33,765 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 23:06:33,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 23:06:33,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 23:06:33,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 23:06:33,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 11:06:27" (1/3) ... [2025-03-08 23:06:33,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140871d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 11:06:33, skipping insertion in model container [2025-03-08 23:06:33,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 11:06:28" (2/3) ... [2025-03-08 23:06:33,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140871d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 11:06:33, skipping insertion in model container [2025-03-08 23:06:33,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 11:06:33" (3/3) ... [2025-03-08 23:06:33,773 INFO L128 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw_p.i [2025-03-08 23:06:33,782 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 23:06:33,784 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ddv_machzwd_inw_p.i that has 29 procedures, 701 locations, 1 initial locations, 4 loop locations, and 205 error locations. [2025-03-08 23:06:33,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 23:06:33,828 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;@5ed5b8d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 23:06:33,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2025-03-08 23:06:33,832 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 23:06:33,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-08 23:06:33,836 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:06:33,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-08 23:06:33,836 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 23:06:33,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:06:33,840 INFO L85 PathProgramCache]: Analyzing trace with hash 926720359, now seen corresponding path program 1 times [2025-03-08 23:06:33,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:06:33,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051227631] [2025-03-08 23:06:33,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:06:33,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:06:36,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 23:06:36,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 23:06:36,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:06:36,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:06:37,138 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 23:06:37,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:06:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051227631] [2025-03-08 23:06:37,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051227631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:06:37,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:06:37,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:06:37,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686896002] [2025-03-08 23:06:37,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:06:37,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 23:06:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:06:37,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 23:06:37,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 23:06:37,167 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 23:06:38,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:06:40,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:06:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:06:41,706 INFO L93 Difference]: Finished difference Result 1261 states and 1525 transitions. [2025-03-08 23:06:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 23:06:41,708 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 23:06:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:06:41,719 INFO L225 Difference]: With dead ends: 1261 [2025-03-08 23:06:41,719 INFO L226 Difference]: Without dead ends: 1257 [2025-03-08 23:06:41,720 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 23:06:41,722 INFO L435 NwaCegarLoop]: 753 mSDtfsCounter, 723 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:06:41,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 2501 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-03-08 23:06:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2025-03-08 23:06:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1044. [2025-03-08 23:06:41,785 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 23:06:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1429 transitions. [2025-03-08 23:06:41,794 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1429 transitions. Word has length 5 [2025-03-08 23:06:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:06:41,794 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1429 transitions. [2025-03-08 23:06:41,794 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 23:06:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1429 transitions. [2025-03-08 23:06:41,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-08 23:06:41,795 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:06:41,795 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-08 23:06:41,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 23:06:41,795 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 23:06:41,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:06:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash 926720360, now seen corresponding path program 1 times [2025-03-08 23:06:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:06:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965456572] [2025-03-08 23:06:41,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:06:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:06:43,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 23:06:43,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 23:06:43,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:06:43,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:06:44,686 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 23:06:44,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:06:44,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965456572] [2025-03-08 23:06:44,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965456572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:06:44,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:06:44,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:06:44,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264872345] [2025-03-08 23:06:44,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:06:44,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 23:06:44,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:06:44,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 23:06:44,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 23:06:44,689 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 23:06:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:06:47,261 INFO L93 Difference]: Finished difference Result 1183 states and 1531 transitions. [2025-03-08 23:06:47,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 23:06:47,263 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 23:06:47,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:06:47,270 INFO L225 Difference]: With dead ends: 1183 [2025-03-08 23:06:47,270 INFO L226 Difference]: Without dead ends: 1183 [2025-03-08 23:06:47,271 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 23:06:47,271 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 279 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2025-03-08 23:06:47,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2771 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-08 23:06:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2025-03-08 23:06:47,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1124. [2025-03-08 23:06:47,310 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 23:06:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1527 transitions. [2025-03-08 23:06:47,318 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1527 transitions. Word has length 5 [2025-03-08 23:06:47,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:06:47,318 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1527 transitions. [2025-03-08 23:06:47,318 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 23:06:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1527 transitions. [2025-03-08 23:06:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-08 23:06:47,318 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:06:47,318 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:06:47,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 23:06:47,319 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 23:06:47,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:06:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1147177173, now seen corresponding path program 1 times [2025-03-08 23:06:47,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:06:47,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384307049] [2025-03-08 23:06:47,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:06:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:06:49,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 23:06:49,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 23:06:49,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:06:49,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:06:49,484 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 23:06:49,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:06:49,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384307049] [2025-03-08 23:06:49,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384307049] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:06:49,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:06:49,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:06:49,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959435066] [2025-03-08 23:06:49,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:06:49,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:06:49,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:06:49,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:06:49,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:06:49,486 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 23:06:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:06:49,906 INFO L93 Difference]: Finished difference Result 1330 states and 1614 transitions. [2025-03-08 23:06:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:06:49,907 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 23:06:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:06:49,913 INFO L225 Difference]: With dead ends: 1330 [2025-03-08 23:06:49,914 INFO L226 Difference]: Without dead ends: 1330 [2025-03-08 23:06:49,914 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 23:06:49,916 INFO L435 NwaCegarLoop]: 737 mSDtfsCounter, 705 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 23:06:49,918 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 23:06:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2025-03-08 23:06:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1123. [2025-03-08 23:06:49,937 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 23:06:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1522 transitions. [2025-03-08 23:06:49,941 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1522 transitions. Word has length 11 [2025-03-08 23:06:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:06:49,942 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1522 transitions. [2025-03-08 23:06:49,942 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 23:06:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1522 transitions. [2025-03-08 23:06:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-08 23:06:49,942 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:06:49,942 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:06:49,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 23:06:49,943 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 23:06:49,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:06:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1147177172, now seen corresponding path program 1 times [2025-03-08 23:06:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:06:49,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115340823] [2025-03-08 23:06:49,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:06:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:06:51,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 23:06:51,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 23:06:51,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:06:51,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:06:52,241 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 23:06:52,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:06:52,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115340823] [2025-03-08 23:06:52,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115340823] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:06:52,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:06:52,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:06:52,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20642652] [2025-03-08 23:06:52,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:06:52,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 23:06:52,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:06:52,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 23:06:52,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:06:52,243 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 23:06:53,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:06:54,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:06:54,272 INFO L93 Difference]: Finished difference Result 1187 states and 1537 transitions. [2025-03-08 23:06:54,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 23:06:54,273 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 23:06:54,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:06:54,278 INFO L225 Difference]: With dead ends: 1187 [2025-03-08 23:06:54,278 INFO L226 Difference]: Without dead ends: 1187 [2025-03-08 23:06:54,278 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 23:06:54,280 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 277 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.0s IncrementalHoareTripleChecker+Time [2025-03-08 23:06:54,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 2100 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-08 23:06:54,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2025-03-08 23:06:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1126. [2025-03-08 23:06:54,303 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 23:06:54,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1525 transitions. [2025-03-08 23:06:54,307 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1525 transitions. Word has length 11 [2025-03-08 23:06:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:06:54,307 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1525 transitions. [2025-03-08 23:06:54,308 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 23:06:54,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1525 transitions. [2025-03-08 23:06:54,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-08 23:06:54,308 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:06:54,308 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:06:54,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 23:06:54,308 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 23:06:54,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:06:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash -499489766, now seen corresponding path program 1 times [2025-03-08 23:06:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:06:54,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729246039] [2025-03-08 23:06:54,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:06:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:06:56,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 23:06:56,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 23:06:56,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:06:56,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:06:56,759 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 23:06:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:06:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729246039] [2025-03-08 23:06:56,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729246039] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 23:06:56,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852840111] [2025-03-08 23:06:56,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:06:56,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 23:06:56,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 23:06:56,762 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 23:06:56,764 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 23:06:58,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 23:06:59,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 23:06:59,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:06:59,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:06:59,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 5614 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-08 23:06:59,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 23:06:59,376 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 23:06:59,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 23:06:59,447 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 23:06:59,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852840111] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 23:06:59,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 23:06:59,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 4] total 11 [2025-03-08 23:06:59,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970501922] [2025-03-08 23:06:59,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 23:06:59,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 23:06:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:06:59,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 23:06:59,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 23:06:59,448 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 23:07:00,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:04,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:05,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:07,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:07,997 INFO L93 Difference]: Finished difference Result 1402 states and 1775 transitions. [2025-03-08 23:07:07,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 23:07:07,998 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 23:07:07,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:08,002 INFO L225 Difference]: With dead ends: 1402 [2025-03-08 23:07:08,002 INFO L226 Difference]: Without dead ends: 1402 [2025-03-08 23:07:08,002 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 23:07:08,003 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 745 mSDsluCounter, 4261 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s 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, 8.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:08,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 5139 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2025-03-08 23:07:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2025-03-08 23:07:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1278. [2025-03-08 23:07:08,025 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 23:07:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1757 transitions. [2025-03-08 23:07:08,028 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1757 transitions. Word has length 14 [2025-03-08 23:07:08,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:08,029 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1757 transitions. [2025-03-08 23:07:08,029 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 23:07:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1757 transitions. [2025-03-08 23:07:08,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-08 23:07:08,030 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:08,030 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:07:08,046 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 23:07:08,230 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 23:07:08,231 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 23:07:08,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:08,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1775123445, now seen corresponding path program 1 times [2025-03-08 23:07:08,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:08,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512896603] [2025-03-08 23:07:08,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:08,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:10,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 23:07:10,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 23:07:10,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:10,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:10,300 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 23:07:10,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512896603] [2025-03-08 23:07:10,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512896603] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:10,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:10,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:07:10,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709533380] [2025-03-08 23:07:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:10,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:07:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:10,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:07:10,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:07:10,301 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 23:07:10,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:10,719 INFO L93 Difference]: Finished difference Result 1486 states and 1850 transitions. [2025-03-08 23:07:10,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:07:10,719 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 23:07:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:10,723 INFO L225 Difference]: With dead ends: 1486 [2025-03-08 23:07:10,723 INFO L226 Difference]: Without dead ends: 1486 [2025-03-08 23:07:10,723 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 23:07:10,724 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 23:07:10,724 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 23:07:10,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2025-03-08 23:07:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1276. [2025-03-08 23:07:10,743 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 23:07:10,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1748 transitions. [2025-03-08 23:07:10,746 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1748 transitions. Word has length 24 [2025-03-08 23:07:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:10,746 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1748 transitions. [2025-03-08 23:07:10,746 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 23:07:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1748 transitions. [2025-03-08 23:07:10,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-08 23:07:10,746 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:10,747 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:07:10,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 23:07:10,747 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 23:07:10,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:10,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1775123446, now seen corresponding path program 1 times [2025-03-08 23:07:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:10,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826547963] [2025-03-08 23:07:10,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:12,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 23:07:12,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 23:07:12,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:12,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:12,851 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 23:07:12,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826547963] [2025-03-08 23:07:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826547963] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 23:07:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590916156] [2025-03-08 23:07:12,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:12,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 23:07:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 23:07:12,853 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 23:07:12,855 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 23:07:14,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 23:07:15,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 23:07:15,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:15,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:15,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 5674 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 23:07:15,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 23:07:15,314 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 23:07:15,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 23:07:15,368 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 23:07:15,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590916156] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 23:07:15,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 23:07:15,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-03-08 23:07:15,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39304384] [2025-03-08 23:07:15,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 23:07:15,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-08 23:07:15,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:15,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-08 23:07:15,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-08 23:07:15,369 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 23:07:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:15,487 INFO L93 Difference]: Finished difference Result 1294 states and 1766 transitions. [2025-03-08 23:07:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 23:07:15,488 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 23:07:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:15,492 INFO L225 Difference]: With dead ends: 1294 [2025-03-08 23:07:15,492 INFO L226 Difference]: Without dead ends: 1294 [2025-03-08 23:07:15,492 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 23:07:15,493 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 23:07:15,493 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 23:07:15,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2025-03-08 23:07:15,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1294. [2025-03-08 23:07:15,512 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 23:07:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1766 transitions. [2025-03-08 23:07:15,515 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1766 transitions. Word has length 24 [2025-03-08 23:07:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:15,515 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1766 transitions. [2025-03-08 23:07:15,515 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 23:07:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1766 transitions. [2025-03-08 23:07:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-08 23:07:15,516 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:15,516 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:07:15,532 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 23:07:15,717 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 23:07:15,717 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 23:07:15,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:15,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2109337546, now seen corresponding path program 2 times [2025-03-08 23:07:15,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:15,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111111471] [2025-03-08 23:07:15,718 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 23:07:15,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:17,596 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-03-08 23:07:17,628 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 42 statements. [2025-03-08 23:07:17,629 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 23:07:17,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:18,044 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 23:07:18,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:18,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111111471] [2025-03-08 23:07:18,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111111471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:18,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:18,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:07:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983539277] [2025-03-08 23:07:18,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:18,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 23:07:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:18,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 23:07:18,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:07:18,045 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 23:07:19,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:19,798 INFO L93 Difference]: Finished difference Result 1350 states and 1778 transitions. [2025-03-08 23:07:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 23:07:19,798 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 23:07:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:19,802 INFO L225 Difference]: With dead ends: 1350 [2025-03-08 23:07:19,802 INFO L226 Difference]: Without dead ends: 1350 [2025-03-08 23:07:19,802 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 23:07:19,803 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 255 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.7s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:19,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1572 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-08 23:07:19,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2025-03-08 23:07:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1292. [2025-03-08 23:07:19,820 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 23:07:19,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1764 transitions. [2025-03-08 23:07:19,823 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1764 transitions. Word has length 42 [2025-03-08 23:07:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:19,824 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1764 transitions. [2025-03-08 23:07:19,824 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 23:07:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1764 transitions. [2025-03-08 23:07:19,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-08 23:07:19,827 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:19,827 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 23:07:19,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 23:07:19,827 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 23:07:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:19,827 INFO L85 PathProgramCache]: Analyzing trace with hash -191873309, now seen corresponding path program 1 times [2025-03-08 23:07:19,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:19,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115189434] [2025-03-08 23:07:19,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:21,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-08 23:07:21,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-08 23:07:21,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:21,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:21,908 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 23:07:21,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:21,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115189434] [2025-03-08 23:07:21,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115189434] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:21,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:21,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:07:21,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371558822] [2025-03-08 23:07:21,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:21,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:07:21,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:21,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:07:21,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:07:21,910 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 23:07:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:21,933 INFO L93 Difference]: Finished difference Result 1291 states and 1761 transitions. [2025-03-08 23:07:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:07:21,934 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 23:07:21,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:21,937 INFO L225 Difference]: With dead ends: 1291 [2025-03-08 23:07:21,937 INFO L226 Difference]: Without dead ends: 1291 [2025-03-08 23:07:21,937 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 23:07:21,938 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 23:07:21,938 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 23:07:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2025-03-08 23:07:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1291. [2025-03-08 23:07:21,953 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 23:07:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1761 transitions. [2025-03-08 23:07:21,956 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1761 transitions. Word has length 66 [2025-03-08 23:07:21,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:21,956 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1761 transitions. [2025-03-08 23:07:21,956 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 23:07:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1761 transitions. [2025-03-08 23:07:21,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 23:07:21,957 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:21,957 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 23:07:21,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 23:07:21,957 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 23:07:21,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:21,958 INFO L85 PathProgramCache]: Analyzing trace with hash 294358723, now seen corresponding path program 1 times [2025-03-08 23:07:21,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:21,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908461681] [2025-03-08 23:07:21,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:21,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:23,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 23:07:23,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 23:07:23,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:23,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:24,160 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 23:07:24,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:24,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908461681] [2025-03-08 23:07:24,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908461681] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:24,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:24,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:07:24,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643078612] [2025-03-08 23:07:24,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:24,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:07:24,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:24,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:07:24,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:07:24,162 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 23:07:25,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:25,463 INFO L93 Difference]: Finished difference Result 1290 states and 1760 transitions. [2025-03-08 23:07:25,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:07:25,463 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 23:07:25,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:25,467 INFO L225 Difference]: With dead ends: 1290 [2025-03-08 23:07:25,467 INFO L226 Difference]: Without dead ends: 1290 [2025-03-08 23:07:25,467 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 23:07:25,467 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 1 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:25,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1420 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 23:07:25,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2025-03-08 23:07:25,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1290. [2025-03-08 23:07:25,484 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 23:07:25,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1760 transitions. [2025-03-08 23:07:25,489 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1760 transitions. Word has length 68 [2025-03-08 23:07:25,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:25,489 INFO L471 AbstractCegarLoop]: Abstraction has 1290 states and 1760 transitions. [2025-03-08 23:07:25,489 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 23:07:25,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1760 transitions. [2025-03-08 23:07:25,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 23:07:25,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:25,490 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 23:07:25,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 23:07:25,490 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 23:07:25,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 294358724, now seen corresponding path program 1 times [2025-03-08 23:07:25,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:25,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832547985] [2025-03-08 23:07:25,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:27,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 23:07:27,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 23:07:27,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:27,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:27,986 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 23:07:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:27,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832547985] [2025-03-08 23:07:27,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832547985] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:27,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:27,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 23:07:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277338287] [2025-03-08 23:07:27,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:27,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 23:07:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:27,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 23:07:27,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 23:07:27,989 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 23:07:29,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:29,739 INFO L93 Difference]: Finished difference Result 1289 states and 1759 transitions. [2025-03-08 23:07:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 23:07:29,739 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 23:07:29,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:29,743 INFO L225 Difference]: With dead ends: 1289 [2025-03-08 23:07:29,743 INFO L226 Difference]: Without dead ends: 1289 [2025-03-08 23:07:29,743 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 23:07:29,743 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 809 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.7s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:29,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1423 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-08 23:07:29,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2025-03-08 23:07:29,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2025-03-08 23:07:29,757 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 23:07:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1759 transitions. [2025-03-08 23:07:29,760 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1759 transitions. Word has length 68 [2025-03-08 23:07:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:29,760 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1759 transitions. [2025-03-08 23:07:29,760 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 23:07:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1759 transitions. [2025-03-08 23:07:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-08 23:07:29,764 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:29,764 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 23:07:29,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 23:07:29,764 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 23:07:29,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash 95286464, now seen corresponding path program 1 times [2025-03-08 23:07:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:29,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426577702] [2025-03-08 23:07:29,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:29,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:31,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-08 23:07:31,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-08 23:07:31,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:31,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:31,791 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 23:07:31,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:31,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426577702] [2025-03-08 23:07:31,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426577702] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:31,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:31,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 23:07:31,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294771324] [2025-03-08 23:07:31,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:31,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 23:07:31,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:31,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 23:07:31,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 23:07:31,793 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 23:07:35,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:35,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:35,408 INFO L93 Difference]: Finished difference Result 1330 states and 1768 transitions. [2025-03-08 23:07:35,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 23:07:35,409 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 23:07:35,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:35,412 INFO L225 Difference]: With dead ends: 1330 [2025-03-08 23:07:35,413 INFO L226 Difference]: Without dead ends: 1318 [2025-03-08 23:07:35,413 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 23:07:35,413 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 95 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:35,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1378 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-08 23:07:35,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2025-03-08 23:07:35,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1285. [2025-03-08 23:07:35,428 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 23:07:35,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1752 transitions. [2025-03-08 23:07:35,430 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1752 transitions. Word has length 73 [2025-03-08 23:07:35,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:35,431 INFO L471 AbstractCegarLoop]: Abstraction has 1285 states and 1752 transitions. [2025-03-08 23:07:35,431 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 23:07:35,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1752 transitions. [2025-03-08 23:07:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 23:07:35,432 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:35,432 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 23:07:35,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 23:07:35,432 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 23:07:35,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash -661748068, now seen corresponding path program 1 times [2025-03-08 23:07:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975670812] [2025-03-08 23:07:35,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:35,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:37,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 23:07:37,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 23:07:37,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:37,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:38,107 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 23:07:38,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:38,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975670812] [2025-03-08 23:07:38,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975670812] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:38,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:38,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 23:07:38,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799012142] [2025-03-08 23:07:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:38,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 23:07:38,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:38,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 23:07:38,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 23:07:38,108 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 23:07:41,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:43,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:44,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:45,800 INFO L93 Difference]: Finished difference Result 1843 states and 2426 transitions. [2025-03-08 23:07:45,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 23:07:45,801 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 23:07:45,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:45,806 INFO L225 Difference]: With dead ends: 1843 [2025-03-08 23:07:45,806 INFO L226 Difference]: Without dead ends: 1843 [2025-03-08 23:07:45,806 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 23:07:45,806 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 802 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s 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, 7.6s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:45,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 3143 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2025-03-08 23:07:45,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2025-03-08 23:07:45,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1620. [2025-03-08 23:07:45,826 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 23:07:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2324 transitions. [2025-03-08 23:07:45,829 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2324 transitions. Word has length 77 [2025-03-08 23:07:45,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:45,830 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2324 transitions. [2025-03-08 23:07:45,830 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 23:07:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2324 transitions. [2025-03-08 23:07:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 23:07:45,831 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:45,831 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 23:07:45,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 23:07:45,831 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 23:07:45,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash -661748067, now seen corresponding path program 1 times [2025-03-08 23:07:45,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:45,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258340884] [2025-03-08 23:07:45,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 23:07:47,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 23:07:47,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 23:07:47,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 23:07:47,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 23:07:48,802 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 23:07:48,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 23:07:48,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258340884] [2025-03-08 23:07:48,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258340884] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 23:07:48,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 23:07:48,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 23:07:48,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457945277] [2025-03-08 23:07:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 23:07:48,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 23:07:48,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 23:07:48,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 23:07:48,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 23:07:48,803 INFO L87 Difference]: Start difference. First operand 1620 states and 2324 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 23:07:50,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:51,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 23:07:52,910 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 23:07:54,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 23:07:54,322 INFO L93 Difference]: Finished difference Result 2050 states and 2659 transitions. [2025-03-08 23:07:54,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 23:07:54,322 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 23:07:54,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 23:07:54,327 INFO L225 Difference]: With dead ends: 2050 [2025-03-08 23:07:54,327 INFO L226 Difference]: Without dead ends: 2050 [2025-03-08 23:07:54,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-08 23:07:54,328 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 1037 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2025-03-08 23:07:54,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 2628 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2025-03-08 23:07:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2025-03-08 23:07:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1804. [2025-03-08 23:07:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1225 states have (on average 1.7118367346938776) internal successors, (2097), 1449 states have internal predecessors, (2097), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2025-03-08 23:07:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2631 transitions. [2025-03-08 23:07:54,348 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2631 transitions. Word has length 77 [2025-03-08 23:07:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 23:07:54,349 INFO L471 AbstractCegarLoop]: Abstraction has 1804 states and 2631 transitions. [2025-03-08 23:07:54,349 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 23:07:54,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2631 transitions. [2025-03-08 23:07:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-08 23:07:54,349 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 23:07:54,349 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 23:07:54,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 23:07:54,350 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2025-03-08 23:07:54,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 23:07:54,350 INFO L85 PathProgramCache]: Analyzing trace with hash -649358766, now seen corresponding path program 1 times [2025-03-08 23:07:54,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 23:07:54,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354479907] [2025-03-08 23:07:54,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 23:07:54,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms