/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 12:08:03,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 12:08:04,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 12:08:04,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 12:08:04,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 12:08:04,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 12:08:04,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 12:08:04,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 12:08:04,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 12:08:04,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 12:08:04,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 12:08:04,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 12:08:04,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 12:08:04,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 12:08:04,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 12:08:04,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 12:08:04,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 12:08:04,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 12:08:04,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 12:08:04,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 12:08:04,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 12:08:04,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 12:08:04,061 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 12:08:04,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 12:08:04,062 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 12:08:04,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 12:08:04,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 12:08:04,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 12:08:04,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 12:08:04,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 12:08:04,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 12:08:04,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:08:04,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 12:08:04,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 12:08:04,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 12:08:04,070 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 12:08:04,070 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 12:08:04,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 12:08:04,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 12:08:04,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 12:08:04,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 12:08:04,074 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 12:08:04,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 12:08:04,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 12:08:04,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 12:08:04,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 12:08:04,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 12:08:04,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2024-11-06 12:08:06,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 12:08:06,393 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 12:08:06,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2024-11-06 12:08:06,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ec693f3/e1b03f1d3f3b49e388065496ebf06c99/FLAGd354bf602 [2024-11-06 12:08:06,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ec693f3/e1b03f1d3f3b49e388065496ebf06c99 [2024-11-06 12:08:06,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 12:08:06,458 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 12:08:06,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 12:08:06,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 12:08:06,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 12:08:06,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:08:06" (1/1) ... [2024-11-06 12:08:06,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5618349b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:06, skipping insertion in model container [2024-11-06 12:08:06,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:08:06" (1/1) ... [2024-11-06 12:08:06,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 12:08:07,125 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,175 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,191 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,192 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,193 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,194 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,195 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,195 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,203 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,204 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,205 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,205 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,236 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,259 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i[90555,90568] [2024-11-06 12:08:07,294 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:08:07,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:08:07,325 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 12:08:07,462 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i[90555,90568] [2024-11-06 12:08:07,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:08:07,520 INFO L204 MainTranslator]: Completed translation [2024-11-06 12:08:07,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07 WrapperNode [2024-11-06 12:08:07,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 12:08:07,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 12:08:07,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 12:08:07,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 12:08:07,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,617 INFO L138 Inliner]: procedures = 95, calls = 129, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 557 [2024-11-06 12:08:07,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 12:08:07,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 12:08:07,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 12:08:07,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 12:08:07,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,717 INFO L175 MemorySlicer]: Split 42 memory accesses to 3 slices as follows [2, 25, 15]. 60 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 0, 4]. The 29 writes are split as follows [0, 25, 4]. [2024-11-06 12:08:07,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 12:08:07,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 12:08:07,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 12:08:07,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 12:08:07,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (1/1) ... [2024-11-06 12:08:07,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:08:07,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:07,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 12:08:07,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 12:08:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 12:08:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-06 12:08:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-06 12:08:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_probe [2024-11-06 12:08:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_probe [2024-11-06 12:08:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-06 12:08:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-06 12:08:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-06 12:08:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-06 12:08:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-06 12:08:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-06 12:08:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-06 12:08:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-06 12:08:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-06 12:08:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-06 12:08:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-06 12:08:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-06 12:08:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_put [2024-11-06 12:08:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_put [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2024-11-06 12:08:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 12:08:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 12:08:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 12:08:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-06 12:08:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-06 12:08:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-06 12:08:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-06 12:08:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-06 12:08:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 12:08:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-06 12:08:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-06 12:08:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-11-06 12:08:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-11-06 12:08:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 12:08:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 12:08:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 12:08:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure iio_interrupt_trigger_remove [2024-11-06 12:08:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_interrupt_trigger_remove [2024-11-06 12:08:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 12:08:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 12:08:08,198 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 12:08:08,202 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 12:08:08,578 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-06 12:08:13,165 INFO L? ?]: Removed 335 outVars from TransFormulas that were not future-live. [2024-11-06 12:08:13,166 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 12:08:13,193 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 12:08:13,194 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 12:08:13,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:08:13 BoogieIcfgContainer [2024-11-06 12:08:13,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 12:08:13,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 12:08:13,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 12:08:13,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 12:08:13,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 12:08:06" (1/3) ... [2024-11-06 12:08:13,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232ec022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:08:13, skipping insertion in model container [2024-11-06 12:08:13,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:08:07" (2/3) ... [2024-11-06 12:08:13,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232ec022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:08:13, skipping insertion in model container [2024-11-06 12:08:13,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:08:13" (3/3) ... [2024-11-06 12:08:13,206 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--iio--trigger--iio-trig-interrupt.ko-entry_point.cil.out.i [2024-11-06 12:08:13,226 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 12:08:13,226 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 12:08:13,323 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 12:08:13,332 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=LoopHeads, 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;@22a57af9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 12:08:13,332 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 12:08:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 196 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 157 states have internal predecessors, (200), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-06 12:08:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-06 12:08:13,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:08:13,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:08:13,350 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:08:13,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:08:13,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1261264738, now seen corresponding path program 1 times [2024-11-06 12:08:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:08:13,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361350543] [2024-11-06 12:08:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:08:13,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:13,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:13,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:08:13,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 12:08:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:08:13,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:08:13,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:08:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 12:08:13,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:08:13,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:08:13,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361350543] [2024-11-06 12:08:13,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361350543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:08:13,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:08:13,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:08:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922027036] [2024-11-06 12:08:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:08:13,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:08:13,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:08:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:08:13,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:08:13,995 INFO L87 Difference]: Start difference. First operand has 196 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 157 states have internal predecessors, (200), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 12:08:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:08:14,096 INFO L93 Difference]: Finished difference Result 385 states and 526 transitions. [2024-11-06 12:08:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:08:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 16 [2024-11-06 12:08:14,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:08:14,117 INFO L225 Difference]: With dead ends: 385 [2024-11-06 12:08:14,118 INFO L226 Difference]: Without dead ends: 177 [2024-11-06 12:08:14,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:08:14,130 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 239 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:08:14,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 250 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:08:14,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-06 12:08:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-06 12:08:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 136 states have (on average 1.3088235294117647) internal successors, (178), 138 states have internal predecessors, (178), 27 states have call successors, (27), 14 states have call predecessors, (27), 13 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-06 12:08:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2024-11-06 12:08:14,213 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 16 [2024-11-06 12:08:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:08:14,214 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2024-11-06 12:08:14,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 12:08:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2024-11-06 12:08:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-06 12:08:14,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:08:14,222 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:08:14,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 12:08:14,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:14,428 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:08:14,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:08:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1058202050, now seen corresponding path program 1 times [2024-11-06 12:08:14,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:08:14,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137068270] [2024-11-06 12:08:14,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:08:14,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:14,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:14,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:08:14,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 12:08:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:08:14,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:08:14,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:08:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 12:08:14,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:08:14,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:08:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137068270] [2024-11-06 12:08:14,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137068270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:08:14,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:08:14,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:08:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824940044] [2024-11-06 12:08:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:08:14,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:08:14,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:08:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:08:14,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:08:14,958 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-06 12:08:15,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:08:15,131 INFO L93 Difference]: Finished difference Result 393 states and 520 transitions. [2024-11-06 12:08:15,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:08:15,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-06 12:08:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:08:15,135 INFO L225 Difference]: With dead ends: 393 [2024-11-06 12:08:15,135 INFO L226 Difference]: Without dead ends: 219 [2024-11-06 12:08:15,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:08:15,138 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 56 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:08:15,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 446 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:08:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-06 12:08:15,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 218. [2024-11-06 12:08:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 174 states have internal predecessors, (229), 31 states have call successors, (31), 15 states have call predecessors, (31), 14 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-06 12:08:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 290 transitions. [2024-11-06 12:08:15,180 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 290 transitions. Word has length 46 [2024-11-06 12:08:15,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:08:15,181 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 290 transitions. [2024-11-06 12:08:15,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-06 12:08:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 290 transitions. [2024-11-06 12:08:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-06 12:08:15,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:08:15,187 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:08:15,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 12:08:15,387 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 [2024-11-06 12:08:15,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:08:15,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:08:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash -961530910, now seen corresponding path program 1 times [2024-11-06 12:08:15,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:08:15,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121171240] [2024-11-06 12:08:15,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:08:15,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:15,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:15,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:08:15,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 12:08:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:08:15,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-06 12:08:15,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:08:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-06 12:08:16,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:08:16,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:08:16,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121171240] [2024-11-06 12:08:16,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121171240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:08:16,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:08:16,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 12:08:16,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166907783] [2024-11-06 12:08:16,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:08:16,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 12:08:16,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:08:16,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 12:08:16,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 12:08:16,198 INFO L87 Difference]: Start difference. First operand 218 states and 290 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 12:08:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:08:16,362 INFO L93 Difference]: Finished difference Result 438 states and 586 transitions. [2024-11-06 12:08:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 12:08:16,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2024-11-06 12:08:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:08:16,372 INFO L225 Difference]: With dead ends: 438 [2024-11-06 12:08:16,373 INFO L226 Difference]: Without dead ends: 223 [2024-11-06 12:08:16,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 12:08:16,375 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:08:16,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1134 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:08:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-06 12:08:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-11-06 12:08:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 176 states have (on average 1.3238636363636365) internal successors, (233), 178 states have internal predecessors, (233), 31 states have call successors, (31), 15 states have call predecessors, (31), 15 states have return successors, (33), 31 states have call predecessors, (33), 30 states have call successors, (33) [2024-11-06 12:08:16,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 297 transitions. [2024-11-06 12:08:16,399 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 297 transitions. Word has length 71 [2024-11-06 12:08:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:08:16,400 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 297 transitions. [2024-11-06 12:08:16,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-06 12:08:16,401 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 297 transitions. [2024-11-06 12:08:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-06 12:08:16,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:08:16,408 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:08:16,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 12:08:16,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:16,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:08:16,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:08:16,614 INFO L85 PathProgramCache]: Analyzing trace with hash -687936805, now seen corresponding path program 1 times [2024-11-06 12:08:16,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:08:16,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778394922] [2024-11-06 12:08:16,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:08:16,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:16,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:16,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:08:16,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 12:08:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:08:16,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:08:16,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:08:17,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 12:08:17,436 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:08:17,436 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:08:17,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778394922] [2024-11-06 12:08:17,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778394922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:08:17,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:08:17,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:08:17,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683491059] [2024-11-06 12:08:17,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:08:17,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:08:17,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:08:17,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:08:17,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:08:17,439 INFO L87 Difference]: Start difference. First operand 223 states and 297 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 12:08:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:08:17,553 INFO L93 Difference]: Finished difference Result 638 states and 852 transitions. [2024-11-06 12:08:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:08:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-06 12:08:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:08:17,558 INFO L225 Difference]: With dead ends: 638 [2024-11-06 12:08:17,559 INFO L226 Difference]: Without dead ends: 418 [2024-11-06 12:08:17,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:08:17,561 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 162 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:08:17,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 534 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:08:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-06 12:08:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 414. [2024-11-06 12:08:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 332 states have (on average 1.3313253012048192) internal successors, (442), 336 states have internal predecessors, (442), 53 states have call successors, (53), 27 states have call predecessors, (53), 28 states have return successors, (58), 54 states have call predecessors, (58), 52 states have call successors, (58) [2024-11-06 12:08:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 553 transitions. [2024-11-06 12:08:17,616 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 553 transitions. Word has length 73 [2024-11-06 12:08:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:08:17,616 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 553 transitions. [2024-11-06 12:08:17,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 12:08:17,617 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 553 transitions. [2024-11-06 12:08:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-06 12:08:17,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:08:17,620 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:08:17,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-06 12:08:17,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:17,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:08:17,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:08:17,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1835113710, now seen corresponding path program 1 times [2024-11-06 12:08:17,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:08:17,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176597155] [2024-11-06 12:08:17,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:08:17,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:17,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:17,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:08:17,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 12:08:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:08:18,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-06 12:08:18,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:08:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-06 12:08:18,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:08:18,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:08:18,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176597155] [2024-11-06 12:08:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176597155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:08:18,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:08:18,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 12:08:18,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251537061] [2024-11-06 12:08:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:08:18,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 12:08:18,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:08:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 12:08:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 12:08:18,643 INFO L87 Difference]: Start difference. First operand 414 states and 553 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:08:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:08:18,873 INFO L93 Difference]: Finished difference Result 831 states and 1113 transitions. [2024-11-06 12:08:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 12:08:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2024-11-06 12:08:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:08:18,878 INFO L225 Difference]: With dead ends: 831 [2024-11-06 12:08:18,879 INFO L226 Difference]: Without dead ends: 420 [2024-11-06 12:08:18,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 12:08:18,882 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:08:18,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1129 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:08:18,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-06 12:08:18,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-11-06 12:08:18,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 338 states have (on average 1.3254437869822486) internal successors, (448), 340 states have internal predecessors, (448), 53 states have call successors, (53), 27 states have call predecessors, (53), 28 states have return successors, (58), 56 states have call predecessors, (58), 52 states have call successors, (58) [2024-11-06 12:08:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 559 transitions. [2024-11-06 12:08:18,914 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 559 transitions. Word has length 77 [2024-11-06 12:08:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:08:18,914 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 559 transitions. [2024-11-06 12:08:18,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:08:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 559 transitions. [2024-11-06 12:08:18,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-06 12:08:18,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:08:18,917 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:08:18,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 12:08:19,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:19,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:08:19,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:08:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 136768066, now seen corresponding path program 2 times [2024-11-06 12:08:19,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:08:19,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826138854] [2024-11-06 12:08:19,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 12:08:19,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:08:19,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:08:19,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:08:19,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 12:09:12,058 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 12:09:12,058 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-06 12:09:12,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.